To determine an earthworm's preference for acidic or alkaline soil, conduct an experiment by placing earthworms in different soil samples with varying pH levels and observe their behavior.
Explanation:An experiment to determine if an earthworm prefers acidic or alkaline soil can be done by following these steps:
Prepare different soil samples with varying pH levels, ranging from acidic to alkaline.Place one earthworm in each soil sample and observe their behavior.Record any signs of preference, such as the earthworms staying in one soil sample for longer periods or exhibiting increased activity in a particular soil sample.Repeat the experiment multiple times to ensure accuracy and consistency of results.Analyze the data collected to determine if there is a correlation between the earthworms' preference and the pH level of the soil.Place earthworms in a container divided into acidic and alkaline soil sections, and observe their positions over time. Record whether more earthworms move towards the acidic or alkaline soil to determine their preference.
To determine if an earthworm prefers acidic or alkaline soil, you can perform a simple choice experiment:
1. Prepare Soil Samples: Collect two soil samples, one acidic (pH 4-5) and one alkaline (pH 8-9). You can adjust the pH using safe substances like vinegar (acetic acid) for acidity and baking soda (sodium bicarbonate) for alkalinity.
2. Set Up the Test Environment: In a shallow container, create a divided environment with one half containing acidic soil and the other half containing alkaline soil. Ensure the soils meet in the middle without mixing.
3. Introduce the Earthworms: Place several earthworms in the middle of the container where the two soils meet.
4. Observe and Record: Over a period of several hours to a few days, observe and record the position of the earthworms. Note any preference for either the acidic or alkaline soil.
On average, those with the short form of the ____ transporter gene and a history of stressful experiences reported more than average symptoms of depre
Answer:
serotonin
Explanation:
Here is the complete question:. on average, those with the short form of the ________ transporter gene and a history of stressful experiences reported more than average symptoms of depression.
Serotonin is sometimes called the happy chemical, because it contributes to wellbeing and happiness. The scientific name for serotonin is 5-hydroxytryptamine, or 5-HT.
On average, those with the short form of the ____ transporter gene and a history of stressful experiences reported more than average symptoms of depression
Answer: Serotonin
Explanation:
Serotonin is an important neurotransmitter in the brain that helps to monitor, balance and control appetite, moods, digestion, sleep in humans.
Serotonin transporter gene exists in two forms; the short form and the long form.
People who possess the serotonin transporter gene in the short form are more prone to go through depression or experience heightened forms of anxiety.
A protein is a polymer consisting of a specific sequence of
Answer:
amino acids
Explanation:
one of the bases or examples of proteins
When pathogenic fungi are found growing on the roots of grape vines, grape farmers sometimes respond by covering the ground around their vines with plastic sheeting and pumping a gaseous fungicide into the soil. The most important concern of grape farmers who engage in this practice should be that thelichens growing on the vines' branches are not harmed.fungicide might also kill the native yeasts residing on the surfaces of the grapes.sheeting is transparent so that photosynthesis can continue.fungicide might also kill mycorrhizae.
Answer:
idc
Explanation:
Grape farmers using gaseous fungicides should primarily consider the potential harm to beneficial mycorrhizae, as this can have significant effects on the health and productivity of grapevines.
Grape farmers who use gaseous fungicides to combat pathogenic fungi on grape roots must be acutely aware of the potential impact on mycorrhizae. Mycorrhizae are beneficial fungi that form symbiotic relationships with grapevines, improving water and nutrient uptake which are essential for healthy plant growth. The inadvertent destruction of mycorrhizae can result in negative consequences for vine health and productivity, potentially offsetting the benefits of using the fungicide. It is less concerning if the plastic sheeting is transparent for photosynthesis, as the grapevine leaves above ground perform this process, not the roots. Moreover, while native yeasts on the surfaces of the grapes are important for fermentation in winemaking, they are found on the grape skin and not typically in the soil where the fungicide is applied. Nevertheless, grape farmers must consider all aspects of the vineyard ecosystem when implementing pest management strategies.
A man and woman are each heterozygous for the autosomal recessive gene for pink hair. They already have two non-pink hair children and want to have two more. What is the probability that their next two children will be phenotypically identical to each other with regard to hair color (i.e., either both pink or neither pink)
Answer:
25%
Explanation:
use a punnet square, it shows that the dominant trait will give the offspring 75% chance of having the non pink hair phenotype
The human cardiovascular system is considered closed because __________.A.blood is continuously circulated in the body.B.blood provides nutrients to organs.C.blood collects oxygen from the lungsD.there are no holes for blood to enter or leave the system
Answer: Option D) there are no holes for blood to enter or leave the system
The human cardiovascular system is considered closed because there are no holes for blood to enter or leave the system
Explanation:
The closed circulatory system are made up of blood vessels called arteries from the heart that branch into small units called capillaries but eventually join up with other blood vessels called veins that are connected to the heart. So, blood is always confined to circulate within the blood vessels and the heart as there are no holes for blood to enter or leave the system
Thus, the human cardiovascular system is considered closed
Answer:
d
Explanation:
edge
During contraction of heart muscle cells ________. A) all of the calcium required for contraction comes from storage in the sarcoplasmic reticulum B) some calcium enters the cell from the extracellular space and triggers the release of larger amounts of calcium from intracellular stores C) the action potential is prevented from spreading from cell to cell by gap junctions D) calcium is prevented from entering cardiac fibers that have been stimulated
Answer:
C) Some calcium enters the cell from extracellular space and triggers the release of larger amounts of calcium from intracellular stores
Explanation:
The contraction of the heart shows that calcium ions are involved in the contraction of the heart.
When the action potential is generated in the Sinoatrial node, the potential travels down through the cells via the gap junctions. As the potential travels, the calcium stored in the sarcomere is released. These calcium ions along with action potential also move across the cells. So the calcium enters from the space and the some is released from the sarcomere.
Thus, the selected option is correct.
Final answer:
During the contraction of heart muscle cells, some extracellular calcium enters the cell and triggers the release of additional calcium from the sarcoplasmic reticulum, which is essential for cardiac muscle contraction.
Explanation:
During contraction of heart muscle cells some calcium enters the cell from the extracellular space and triggers the release of larger amounts of calcium from intracellular stores. This process is known as the calcium-induced calcium release (CICR) mechanism, which is essential for the contraction of cardiac muscles. The initial influx of calcium through the slow calcium channels during the action potential depolarization phase, accounts for a small portion (approximately 20%) of the calcium required for contraction. The majority of the calcium used in contraction is then released from the sarcoplasmic reticulum (SR).
Unlike skeletal muscle, where almost all of the calcium comes from the SR, cardiac muscle fibers rely on both the influx of extracellular calcium and the release from the SR to initiate contraction. This mechanism allows for a longer contraction time in cardiac muscles, which is necessary for the proper functioning of the heart.
In this lab, the three flocks of birds changed in numbers between generation 1 and generation 3. Why? Check all reasons. The amount of food available increased and decreased. If a flock’s beak type made it easier to pick up the available food, the flock grew. If a flock’s beak type made it harder to pick up the available food, the flock shrunk.
Answer:
Option- "If a flock’s beak type made it easier to pick up the available food, the flock grew."
Explanation:
We can simplify the whole answer by having argument about the structure or alignment of the birds in a given way which provides more food sources or options for the 1st generation and then the third generation can be found in a more scattered form inside the herd, as there are no more food requirement as much was before.Answer:
-If a flock’s beak type made it easier to pick up the available food, the flock grew.
-If a flock’s beak type made it harder to pick up the available food, the flock shrunk
Explanation:
Consider the consequences of a mutation in the DNA template sequence 5'ATG3' to 5'TTG3': What is (a) the resulting change in the mRNA codon and (b) the effect on the corresponding amino acid?
Answer:
(a) CAU to CAA; (b) His to Gln
Jane had leukemia as a child and had to undergo numerous bouts of chemotherapy. The chemotherapy always made her nauseous. As she underwent a year of treatment, the waiting room started to make her nauseous. The waiting room became the:
Answer:
The waiting room became the conditioned stimulus.
Explanation:
Conditioned stimulus is the reflexive behaviors or the learned behavior.
This stimulus may be defined as a neutral stimulus that with some time and some training will evoke a response by continuously being associated with any other natural occurring stimulus.
Many scientists argue that worldwide fisheries are declining, yet the worldwide number of fish harvested continues to increase. What would best explain this discrepancy?
Answer:
e. An increase in fishing technology and increased fishing effort are leading to an increase in catch despite the declining populations
Explanation:
a. The scientists are being overly cautious
b. Fisheries are collapsing only in the areas that the scientists are studying
c. More people are reporting the fish that they catch
d. Only apex predator populations are collapsing
e. An increase in fishing technology and increased fishing effort are leading to an increase in catch despite the declining populations
Fishery is defined as organized efforts by human to raise and or harvest fishes along with other aquatic organisms for consumption and other relevant uses.
For fishery to decline, it means organized efforts by humans to harvest fishes has reduced. Worldwide number of fish harvested continues to increase because the few organized efforts at harvesting fishes now adopt sophisticated means to carry out their activities leading to more efficient approach and hence, more harvested fishes.
From the options above, the correct option is e.
Select the correct statement about active and passive immunity.
A. Immunological memory is established by passive immunization.
B. A vaccination is an example of the introduction of passive immunity into the body.
C. Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies.
D. The antibodies utilized in active immunity are acquired from another organism.
The correct choice is option C: both types of immunity use antibodies, but active immunity is developed by the body's encounter with the pathogen, achieving long-term immunity, while passive immunity is received from another source and is short-lived.
Explanation:The correct statement about active and passive immunity is option C: Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies. This is because active immunity is developed when our body encounters the pathogen and produces antibodies, achieving long-term immunity. Passive immunity, on the contrary, is short-lived and is acquired when antibodies are transferred from one person to a recipient, as in the case of a mother transferring antibodies to her baby during breastfeeding. The other options are inaccurate. For example, option A is incorrect because only active immunity establishes Immunological memory, not passive immunity.
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Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies.
Explanation:The correct statement about active and passive immunity is option C: Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies.
Active immunity is the immunity that occurs when an individual's own immune system produces antibodies in response to exposure to a pathogen or a vaccine. Examples include getting sick with a disease and recovering, or getting vaccinated.
Passive immunity, on the other hand, is the immunity acquired from another individual or organism. This can occur naturally through the transfer of antibodies from a mother to her baby through breast milk, or artificially through the administration of preformed antibodies.
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When the volume of a cell increases, its surface area Select one: a. increases at the same rate. b. remains the same. c. increases at a faster rate. d. increases at a slower rate.
Answer:
The correct answer is d. increases at a slower rate.
Explanation:
As the volume of a cell increases a cell grows bigger but unfortunately the surface area does do not increase as faster as the volume, therefore, the relative surface area amount which is available to pass the molecule across plasma membrane per unit volume decreases.
Therefore as the cell increase in size the surface area to volume ratio decreases. So if a cell grows more than its limit it will get difficult to move molecule fastly across its membrane. Therefore the correct answer is d.
When the volume of a cell increases, its surface area increases at a slower rate.
Explanation:When the volume of a cell increases, its surface area increases at a slower rate. As a cell grows larger, its volume increases more rapidly than its surface area. This is because volume is calculated using the cube of the cell's radius, while surface area is calculated using the square of the cell's radius. The decrease in surface area-to-volume ratio can affect the cell's efficiency in terms of supporting diffusion and nutrient absorption.
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Which of the following statements about deuterostomes is false? Which of the following statements about deuterostomes is false? All deuterostomes are triploblastic and have three tissue layers. All deuterostomes exhibit radial symmetry in their bodies. All deuterostomes have a coelom. All deuterostomes have a similar pattern of early embryonic development.
Answer:
All deuterostomes exhibit radial symmetry in their bodies.Explanation:
deuterostomes : All deuterostomes are triploblastic and have 3 layers:
i) endoderm, ii) mesoderm and iii) Ectoderm
In deuterostomes , a mouth that develops separately from the blastopore.
Taxonomically, the deuterostomes defines as any member of the phyla (Chordata, Hemichordata, Echinodermata, etc) in which the anus appears first, and it develops at or near the blastopore.
All deuterostomes have a coelom.
All deuterostomes have a similar pattern of early embryonic development.
The false statement about deuterostomes is that they all exhibit radial symmetry, whereas they actually show bilateral symmetry. Deuterostomes are indeed triploblastic and have a coelom, sharing similar early embryonic development patterns.
Explanation:The correct statement that is false about deuterostomes is: All deuterostomes exhibit radial symmetry in their bodies. Deuterostomes, including humans, exhibit bilaterally symmetrical body plans rather than radial symmetry. While it is true that deuterostomes are triploblastic, meaning they develop three germ layers (the ectoderm, mesoderm, and endoderm), and possess a true coelom, they are characterized by their bilaterally symmetrical structure. Additionally, deuterostomes do follow a similar pattern of early embryonic development, specifically radial and indeterminate cleavage, which is different from the cleavage patterns seen in protostomes. However, the adult form of deuterostomes shows bilateral symmetry, making the statement about radial symmetry incorrect.
Which mechanisms is not used to propel lymph through lymphatic vessels?
Answer:
small heart-like pumps
Explanation:
Here is the complete question:.
Which of the following mechanisms is NOT used to propel lymph through lymphatic vessels?
small heart-like pumps
gravity
the milking action of muscles
pulmonary motion
And the answer is
small heart-like pumps
The heterozygous condition of sickle cell anemia results in resistance to malaria. If a homozygous normal father and a heterozygous mother have a child, what are the chances of that child being resistant to malaria but not having sickle cell anemia
Answer:
1/2
Explanation:
This is a cross involving a single gene coding for sickle cell resistance (S) where the dominant allele is denoted by S and the recessive allele by s. Hence, an individual heterozygous will have a Ss genotype. According to the question, an individual with Ss genotype (heterozygous) will be phenotypically normal and resistant to malaria attack.
A cross between a homozygous normal male (SS) and heterozygous female (Ss), using a punnet square, will give rise to four possible offsprings with genotypes: SS, SS, Ss and Ss.
The SS genotype is phenotypically normal but not resistant to malaria while the Ss genotype is also phenotypically normal but resistant to malaria. Hence, the probability of their single child being phenotypically normal (not having sickle cell) and resistant to malaria is 2 out of 4 possible offsprings i.e. 2/4 = 1/2.
The child of a homozygous normal father and a heterozygous mother for sickle cell anemia has a 50% chance of being heterozygous and therefore resistant to Malaria without having sickle cell anemia. However, being heterozygous does not guarantee complete protection against Malaria.
Explanation:In this case, we are looking at a genetic disorder, sickle cell anemia, where the heterozygous condition provides a built-in resistance to Malaria. A person with a heterozygous sickle cell condition has one normal hemoglobin gene (H) and one abnormal hemoglobin gene (S), which results in some resistance to Malaria.
If a father is homozygous normal (HH) and a mother is heterozygous (HS), the possibilities for their child's genotype through Mendelian inheritance are HH or HS, according to Punnett square analysis. Therefore, the child has a 50% chance of being heterozygous and thus resistant to Malaria without having sickle cell disease.
Yet, it's important to note that being heterozygous for sickle cell trait does not guarantee 100% protection against Malaria, but it does increase survival rates in malaria-endemic regions.
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________ is the set of skills and abilities necessary for an organism to live.
Its Survival!! ( I hope this helps)
Answer:Correct Answer: Survival
Explanation:
The developing fetus receives nutrient rich blood through the
Answer:
The Umblical vein(cord).
Explanation:
It carries oxygenated, nutrient-rich blood from the placenta to the fetus.
Scientists who wished to study the metabolic function of cells with balanced translocations while preventing cell replication would be best served by arresting the cells during which phase of the cell cycle?A. AnaphaseB. Metaphase
C. Interphase
D. Prophase
Answer:
C
Explanation:
This phase occurs before mitosis, it is here that the cell's DNA is copied in preparation for mitosis. This phase is also known as the metabolic phase (previously called the 'resting phase'), because it is during this phase that the cell gets it nutrients, breaks them down, and grows. It is therefore best to arrest the cell in this phase before any modifications happen to the cell during mitosis, and it is during this phase that the cell's metabolism is at its high functionality.
Adrian is recovering from schizophrenia. She has been taking high doses of antipsychotic medications for a very long period of time and has begun to experience uncontrollable movements of her mouth and tongue that make her appear as if she were chewing food in a very exaggerated way. Adrian is experiencing the symptoms of:__________
a) angina.
b) tardive dyskinesia.
c) blepharochalasis.
d) scleritis.
Answer:
Tardive dyskinesia.
Explanation:
Schizophrenia may be defined as the condition in which the individual is unable to accept reality and interpret the reality in different ways. The symptoms are hallucination, disrupted speech and nehativity.
Tardive dyskenia is the medical condition in which the individual cannot control their hand and body movements. This condition might occur due to the medication that have been taken to treat the schizophrenia. The drugs inhibits the effects of dopamine that causes tardive dyskenia.
Thus, the correct answer is option (b).
Answer: b) tardive dyskinesia.
Explanation:
Tardive dyskinesia is a kind of side effect of the antipsychotic drugs. Such kind of drugs are used for the treatment of psychiatric conditions like schizophrenia and other mental health disorders.
The side effects includes the uncontrolled movement of the body parts repeatedly and blinking of eyes.
According to the given situation, the high doses of antipsychotic medication has resulted in symptoms of tardive dyskinesia.
Endocarditis occurs when bacteria infect the bloodstream and attach themselves to the inner lining of the heart or a defective heart valve. These bacteria are ______.
Answer:
Streptococcal or Staphylococcal bacteria
Explanation:
They attach themselves to the inner lining of the heart making it to becme inflamed and casing damage to the heart valves.
Two species of buttercup are found in the same field in South Dakota, but they emerge at different times: One species emerges and flowers in early spring, and the other species does not emerge until late summer, after the first species has set seed. This is an example of
Answer: Resource partitioning
Explanation: Resource partitioning is the situation where more than one group of living organisms consisting of identical individuals eligible for sharing genes distributes out nutrition, free area, sleeping areas that exist at the same time or the same area. This usually happens when a group of living organisms consisting of identical individuals eligible for sharing genes separate a role taken by a category of organisms within its neighborhood to prevent competition for food and other aids. However, creatures and plants may develop gradually to give birth to offspring at distinct times of the year, eat food at a distinct point of time, or utilize a distinct portion of a woodland or distinct distance of a lake.
Answer:
Resource Partitioning .
Explanation:
The ability of two organisms of the same species, in the same ecological niche of limited resources, to avoid competition for the limited resources and co-exit with one another with the limited resources available is called Resource Partition.Thus the two buttercup species on the same field(niche) flowered at different periods to ration the limited resources(insect pollinators, soil nutrients, space,) available.
It is applicable to habitat and food resources.It gives room for long term co-existence of similar species of organisms,and prevent extinction of disadvantaged species.
It provides insights to how resources in an ecosystem is used a particular species of organism, and the effect of removal a specie of organism on the allocation of resources available.
Individual amoebae of the slime mold Dictyostelium discoideum aggregate to form a spore-producing fruiting body. Cheaters make spores, but do not contribute to the stalk. Since many more spores with cheating genotypes are dispersed, they have higher fitness. Why does directional selection not lead to fixation of the cheater genotype?
a. This is actually a case of frequency-dependent selection. With too many cheaters in a population, the fruiting body's stalk is not built well, and all individuals have lower fitness.
b. Noncheating genotypes are maintained for the harmony and balance of nature.
c. Individual amoebae compete against groups of multicellular predators; the noncheating genotype is favored during this competition.
d. Individual amoebae form "slugs" only with other amoebae that have the same genotypes.
e. Reproductive success is independent of whether an organism exists as a single cell or as part of a multicellular "slug."
Answer:
a. This is actually a case of frequency-dependent selection. With too many cheaters in a population, the fruiting body's stalk is not built well, and all individuals have lower fitness.
Explanation:
Frequency dependent selection is a process in evolution whereby the
a gene, genotype or phenotype varies depend on the percentage of that gene, genotype or phenotype that is present in the population.
There are two types of frequency dependent selection:
a. Positive frequency dependent selection.
b. Negative frequency dependent selection.
List at least 2 characteristics of soil. Why are soil characteristics important?
Answer:
Soil texture, Soil aeration
Explanation:
Soil characteristics helps in the identification and gives vital information about the present states of soil types before planting. This is necessary so the soil can undergo treatments and modifications such as addition of humus or fertilizers, and using pitchforks or aerators for optimal yield when crops are planted.
When a group of tissues starts working together to perform a common function, what level of organization is achieved? A. system B. tissue C. organ D. cell
Answer: Option C) organ
Explanation:
An organ is made up of similar tissues performing the same function e.g skin.
The skin is an organ (sense organ) composed of several kinds of tissues that all help to protect the body from invaders
Ginkgo trees (Ginkgo biloba) are "living fossils." Although ginkgos are native to China, they now are commonly planted in cities in the United States. Keeping in mind the principles of allopatric speciation, what might happen over time to the two populations of ginkgos?
Answer:
The two populations might become separate species
Explanation:
Allopatric speciation is one of the mechanisms that can lead to the establishment of a new species of organisms as a result of geographical separation of different population of organisms of the same species.
When organisms of the same species are geographically separated, this prevents gene flow between the two populations and each population develops various adaptive features in order to cope with their environments. Thus, each population might end up becoming a new species.
In Mendel’s crosses, the trait is visible in the F2 generation, but not the F1 generation.
Answer:
In Mendel’s crosses, the recessive trait is visible in the F2 generation, but not the F1 generation.
After crossing a tall pea plant with a short pea plant, all of Mendel’s pea plants were tall because it is the Dominant trait.
For seed color, the F2 generation produced both yellow and green seeds because there are two different alleles for each gene.
If you'd like to know more, read on:
Alleles are variants of genes that control traits. There are two alleles called the dominant and recessive allele.
A dominant allele is a trait that is physically expressed even when coupled with a recessive allele. A recessive allele on the other hand is the trait that is masked by the dominant allele.
This is what happened in Mendel's crosses. He crossed a true-breeding tall plant with a true breeding short plant.
P generation
TT - Tall plant
tt - Short plant
The result in the F1 generation that consisted only of Tt plants, where the dominant allele was expressed.
T T
t Tt Tt
t Tt Tt
Then he crossed the F1 generation to produce the F2 generation.
Tt x Tt
The results:
T t
T TT Tt
t Tt tt
As you can see the resulting offsprings shows that the recessive trait occurring, tt. This means that there was a 25% chance that the off springs produced would short plants and 75% that the offsprings produced is tall. This applies also to the color of the seeds if we cross the pea plants based on the color of seeds.
Explanation:
In Mendel's cross, the recessive trait appears in the [tex]F_2[/tex] generation, but not in the [tex]F_1[/tex] generation.
What is Mendel's cross?After crossing a tall pea plant with a short pea plant, all of Mendel's pea plants were tall because of the dominant trait. For seed color, the [tex]F_2[/tex] generation produced both yellow and green seeds because there are two different alleles for each gene.
There are two alleles called as the dominant and recessive allele. A dominant allele is defined as a trait that is physically expressed even when combined with a recessive allele, while a recessive allele is defined as a trait that masked by the dominant allele.
The resulting progeny in the [tex]F_2[/tex] generation showed that the recessive trait was produced, tt meaning that there was a 25% chance that the offsprings produced would be short plants and 75% that the progeny produced would be tall. This also applies to seed color if we cross pea plants on the basis of seed color.
Thus, in Mendel's cross, the recessive trait appears in the [tex]F_2[/tex] generation, but not in the [tex]F_1[/tex] generation.
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The expression of a gene is said to be ‘turned on’ when certain signals interact with the promoter of a gene and RNA is produced. The strand of RNA that corresponds to a gene is complementary to the sequence of DNA. The process called "Transcription" is:
Answer:
Transcription is the process of forming an RNA molecule from a DNA template molecule. In this process, the DNA strands separate and one serves as a template for the RNA, while the other is inactive. At the end of the transcription, the tapes that were separated are joined again.
Explanation:
In the example of adrenaline signaling used in the animation, suppose each amplification step produces hundredfold active molecules. How many total modified protein target molecules result from a single activated signal receptor? A. 300 B. 900 C. 10,000 D. 1,000,000 E. 100,000,000
Answer:
D. 1000000
Explanation:
Adrenaline signaling occurs when the the hormones clings to the cell surface of the Adrenaline receptor.
The total modified protein target molecules resulting from a single activated signal receptor is 1,000,000 and this results in the consumption of 100 molecules of Guanosine triphosphate (GTP) and 1,010,000 molecules of Adenosine triphosphate (ATP).
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What is the most important force driving filtration at the arterial end of a capillary?
Answer:
It is called "blood hydrostatic pressure".
Explanation:
This occurs in tight or enclosed space. It is the force exerted by the blood confined within the heart chambers. And this(pressure) at the arterial end of the capillaries tends to drive fluid out of the capillary and into the tissue area.
White blood cells are an important component of our immune system. One thing they do is consume and destroy bacteria by extending their plasma membrane around the bacterium and bringing it inside the cell in a vesicle. By what process do they engulf the bacterium?
Answer: Phagocytosis
Explanation:
During the process of phagocytosis, certain white blood cells called phagocytes (macrophage, neutrophil), extends their plasma membrane and draw in bacterium or other invaders into its own vacuole, digesting and destroying them.
Thereafter, the waste products containing weakened toxins are expelled from the cell through the cell membrane.