Answer:
79
Explanation:79
if you explain9
Answer:
1. B
2.B
3.B
4.C
5.C
6.C
7.A
Explanation:
B. Bacteria can exchange genes for resistance to antibiotics in this way. Bacteria can take up genetic material from other bacteria or the environment during a process called transformation. This is relevant to humans because we can modify bacterial ADN with a gene of our choice and due to this transformation process, other bacteria can take up this modified ADN. B. All animals are heterotrophs. This means we can not produce food for ourselves inside our bodies. Instead, we have to consume it from another source in nature, for example, animal meat, fruits or vegetables.B. Species have specific adaptations to their local environment. In Darwin's finches for example, he found out that very similar birds had different peaks and head shape. He wanted to find out why they were so different yet so similar. He found out that depending on the food source available on the environment, the birds had a particular shape of peaks and head so they can feed properly.This adaptations and changes allow the birds to survive in a particular local environment.C. Mutualistic relationship. A mutualistic relationship is a biological interaction in which both organisms benefit. In this particular case, the Dinoflagellates provides energy to the coral and the coral protects the dinoflagellates against predators. This question is the same as the 4th one.C. recessive. The recessive hypothesis exposes that viruses were intracellular parasites that lost the required genes for replication and maintenance. So, they depend on host cells and their replication genes and processes to live.A. Analogous structure. An analogous structure is a trait that has a similar role, but whose origin is different. In this particular case, the insects, birds, and bats have different origins and ancestors but they all evolve wings to fly.6.
The blood component that has the greatest affinity for oxygen is the
a) Lymphocyte" (b) Leucocytes (c) Erythrocytes (d)
Thrombocyte
Answer:c
Explanation:
the question is asking for another name for red blood cells since they bind with oxygen and hemoglobin in our body.
The component of blood with the greatest affinity for oxygen is the erythrocyte, or red blood cell. This is because erythrocytes contain a protein called hemoglobin that binds to oxygen, enabling it to be transported from the lungs to the body's tissues.
Explanation:The blood component that has the greatest affinity for oxygen is the Erythrocyte (c). Erythrocytes, also known as red blood cells, are the primary transporters of oxygen in the blood. They contain a protein called hemoglobin that has a high affinity for binding to oxygen, making it essential for carrying oxygen from the lungs to tissues throughout the body.
Lymphocytes (option a) are a type of white blood cell involved in the immune response, Leucocytes (option b) is a general term for all types of white blood cells, and Thrombocytes (option d), also known as platelets, are involved in blood clotting. However, none of these other components bind oxygen like erythrocytes do.
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Lucia is walking barefoot in her yard. She accidentally steps on a nail. How will her nervous system work to generate a reaction? Arrange the events
chronologically.
Answer:
1. receoptors in her toe receive stimuli
2.her sensory neurone generates an impulse.
3. interneurones relay the impulse to motor neurons in spinal cord.
4. motor neurone signal the leg muscles
5. she immediately moves her foot
Explanation:
Answer:
A kind of nerve circuit that results in the generation of a reflex is known as the reflex arc. The information that originates from the surroundings is captivated by the sensory receptors, which converts the information to a nerve message and transmit it towards the central nervous system, which interprets it and produces a response.
In the given case, the reaction is generated in the following manner:
a. The receptors present in the toe attains stimuli.
b. An impulse is generated by the sensory neurons.
c. The impulse is relayed to the motor neurons in the spinal cord by the interneurons.
d. The leg muscles receive the signals by the motor neurons.
e. The foot gets moved instantaneously.
Describe how alleles and genes are related
DNA is composed of long strings of nucleic acid sequences, but not all of them code for proteins.But the ones that do are called genes.
Alleles are different versions of a certain gene.As an example, the gene that codes for blood type has 3 different alleles, A, B, an O. The genes that code for hair and eye color also have many different alleles.
15. Look at the U-shaped body of water in the image. What's this body of water called?
A. An oxbow lake
B. A kettle lake
C. A meander
D. A delta
your answer is A. An oxbow lake. this is because this landform is so named for its distinctive curved shape, which resembles the bow pin of an oxbow.
Cumulus and cumulonimbus clouds are most likely to be formed by a _______ front
occluded
warm
stationary
cold
Answer:
cold
Explanation:
Two factors which cause global climate change are listed below.
Factor 1: Sea level rising
Factor 2: Changes in the amount of atmospheric gases
Which of these statements is correct about the two factors which cause global climate change?
A. Factor 2 is a natural factor, and Factor 1 is influenced only by human factors.
B. Factor 1 is a natural factor, and Factor 2 is influenced only by human factors.
C. Factors 1 and 2 may be influenced by both nature and human factors.
D. Factor 1 is a human-induced factor, and Factor 2 may be influenced by both nature and human factors.
Answer:
c. Factors 1 and 2 may be influenced by both nature and human factors
Explanation:
The sea level rising and the change in the atmospheric gases are both processes that are influenced by the nature, as well as by the human activities. Naturally, the earth has its own cycles, known as Milankovich cycles, through which the Earth warms up, or cools down, resulting in change of the atmospheric gases, and in accordance to that, change in the sea levels depending on the global climate. The humans to have become a big factor in the past few hundred years. The reason for that is that the humans with their activity started to release lot of greenhouse gases into the atmosphere, especially CO2 and methane. That has been changing the composition of the atmosphere, and the temperatures have been rising. The higher the temperatures, the more ice is melting around the poles and on the high mountains, resulting in an increase in the sea levels.
The exchange of carbon dioxide and oxygen in the alveoli of the lungs is an example of what?
A) Endocytosis
B) Active Transport
C) Passive Transport
D) Secondary Active Transport
Answer:
The correct answer is C) Passive transport
Explanation:
During the respiration process exchange of gases takes place between lungs and blood. This gas exchange is carried by simple diffusion which is a passive transport. Here gas molecule moves from area of higher concentration to the lower concentration area.
The lung's alveoli are surrounded by blood capillaries in which the concentration of CO2 is high while in alveoli concentration or partial pressure of CO2 is low so CO2 moves from blood to alveoli through diffusion.
In the case of oxygen, the concentration of oxygen is high in alveoli and less in blood inside blood capillaries so oxygen moves from alveoli to blood by diffusion. So the right answer is C.
The science for classifying and naming organisms is known as __________.
Hello There!
Taxonomy is the science of naming and classifying biological organisms on the basis of shared characteristics.
Taxonomy is the field of naming types of organisms.
Which of the following stimuli would cause the liver to produce more glycogen?
A. Consuming a steak containing many proteins
B. Going several hours without eating anything
C. Going several hours without drinking anything
D. Consuming a breakfast sandwich containing many carbohydrates
Answer: Option B
Explanation:
Glycogen is a hormone which is used to regulate the amount of glucose in the blood. Insulin and glycogen are two hormones that helps in regulation of the blood glucose.
When there several hours of fasting then there is decrease in the level of glucose in the blood then the glycogen is produced to meet the required amount of glucose in the blood.
Answer:
D. Consuming a breakfast sandwich containing many carbohydrates.
Explanation:
Which is the biggest disadvantage of using adult stem cells for medical
treatments?
Answer: they are not pluripotent source apex
Explanation:
The biggest disadvantage of using adult stem cells for medical treatments is the acquisition and isolation which affects its reproducibility.
What are adult stem cells?Adult stem cells are isolated from the mature adults. They are further divided into tissue-specific stem cells and bone marrow-derived stem cells
Recent developments in adult stem cell research may present an innovative and viable replacement for cell-based therapeutics.
The advantages of adult stem cell in therapiesSince adult stem cells are obtained from adults, they have the same genotype as the patientReducing the risk of immunological rejectionUsing adult stem cells also avoids the ethical and religious disputes brought on by HESCs(human embryonic stem cells)There are few limitations of using them in therapiesProblems with acquisition and isolation The natural regeneration potential is somewhat insufficient. There is currently no way to produce vast numbers of stem cells in culture.More study is required in this field.To learn more about adult stem cells here
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Secondary pollutants are more harmful than primary pollutants.
Please select the best answer from the choices provided
OT
OF
Secondary pollutants are more harmful than primary pollutants. the given statement is true.
What is a secondary pollutant?
Pollutants that originate in the atmosphere are known as secondary pollutants. These contaminants aren't directly emitted by a source (like vehicles or power plants). Rather, they emerge when pollutants produced from these sources combine with molecules in the atmosphere to create a new pollutant.
Secondary pollutants are created by the reaction of primary pollutants with atmospheric chemicals. Ozone, smog, sulfur trioxide, acid rain, hydrogen peroxide, and acetylnitrites are all examples of this. These substances have been changed and are more harmful.
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what happens when atoms share electrons?
A. They form covelant bonds
B. They form water molecules
C. They form ionic bonds
D. They form polar molecules
Answer:
A) They form covelant bonds
Explanation:
covelant bonding occurs when pairs of electrons are shared by atoms.
Which means "to study or examine”? reproduce analyze quantify validate
Answer: Analyze
Explanation:
Analyze is the correct option. This is because when we analyze something we need to observe and examine it. The analysis process is done so as to draw a valid and authentic conclusion, which can be utilized to frame result and outcome of the research or experimentation. The analysis process should not be based upon presupposition or prediction instead it must be based upon the data obtain after the experimentation.
The term "to study or examine" refers to the process of exploring, investigating, or scrutinizing a subject or topic in a systematic and thorough manner. It involves delving into the details, gathering information, and gaining a comprehensive understanding of the subject under consideration.
Let's examine the meanings of the given words in relation to studying or examining:
Reproduce: Reproducing in this context means to replicate or recreate a study or experiment that has already been conducted. By reproducing a study, researchers aim to verify or validate the original findings and assess their reliability or generalizability.
Analyze: Analysis involves breaking down a subject or data into its constituent parts, examining each component, and evaluating their relationships or patterns. Through analysis, researchers identify key elements, explore their significance, and draw conclusions or make inferences based on the evidence.
Quantify: Quantification refers to the process of assigning numerical values or measurements to variables or observations. It involves converting qualitative data into the quantitative form, enabling researchers to analyze and interpret the data using statistical methods or mathematical models.
Validate: Validation involves assessing the accuracy, reliability, or authenticity of a study, experiment, or information. It entails confirming the soundness of methodologies, data collection processes, and analysis techniques. Validation is crucial to ensure the credibility and trustworthiness of research findings.
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What occurs during a solar eclipse
Answer: the sun is completely covered by the moon
Explanation:
What is insulin's structure?
a.quaternary
b.secondary
c.primary
d.tertiary
CONNECTION
Compare and contrast genetic engineering to the process of natural selection. Select all statements that
are true.
If the amount of milk a person drinks increases, the strength of his or her bones will stay the same.
Independent variable: _______
Dependent variable: _______
Answer:
Independent variable: amount of milk
Dependent variable: strength of bone
Explanation:
independent variable is the variable that you change.
dependent variable is the variable that depends on the changing variable
In this scenario, the independent variable is the 'amount of milk a person drinks', while the dependent variable is 'the strength of his or her bones'. The independent variable is what is being controlled or changed, and the dependent variable is the outcome or result that is measured.
Explanation:In this statement, the independent variable is the 'amount of milk a person drinks'. The independent variable is the factor that we change or control in an experiment. In this case, the person can control how much milk they drink.
On the other hand, The dependent variable is 'the strength of his or her bones'. The dependent variable is what we measure or observe to see if it changes in response to the independent variable. Here, we would measure the strength of the person's bones in relation to the amount of milk they consume.
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This organism is not capable of performing photosynthesis.
(horseshoe crab)
TRUE
FALSE
Answer:
True
Explanation:
Name the types of burns one can get and which structures of the integument are damaged
First degree burns include only the outer layer of skin, otherwise known as the epidermis. Skin in this condition is usually red in appearance, and can be quite painful. An example of a first degree burn injury is a common sunburn. The skin will be dry, and healing usually occurs in 3-5 days. The injured epithelium peels away from the healthy skin during the healing process, and hospitalization is only required if the pain is intolerable or there is a fluid imbalance.
Second degree burns are further divided into two subcategories: partial thickness and full thickness. In partial thickness second degree burns, there may be blisters present and the injury will involve the epidermis and upper layers of the dermis. The wound will be pink or red in color, extremely painful, and may appear wet. This type of burn heals in several weeks without grafting and scarring is usually minimal.
Third degree burns are the most severe type. All layers of the skin are destroyed and the damage extends into subcutaneous tissues. Areas can appear black or white and will be dry or leathery in texture. The wound will not blanch when pressure is applied, and there is no pain involved because the pain receptors have been destroyed along with the rest of the dermis.
Monkeys and humans share many of the same DNA sequences and have similar proteins, indicating that
a....the two groups belong to the same specie
b....the two groups share a relatively recent common ancestor
c....the two groups first appeared on Earth at about the same time
d....monkeys evolved from humans
In what form will Susan be able to capture that phosphorus as it is released from the sedimentary rock
Answer:
Soluble phosphorus
Explanation:
Soluble phosphorus is a measure of orthophosphate (PO4), the
soluble and inorganic filterable fraction of phosphorus, which is the most
stable type of phosphate and it is the form directly used up by the plant
cells.
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Susan can capture phosphorus as the phosphate ion (PO₄³⁻) when it is released into the environment through weathering of sedimentary rocks and becomes available to both terrestrial and marine food webs.
Susan will be able to capture phosphorus in the form of the phosphate ion (PO₄³⁻) as it is released from the sedimentary rocks. This release occurs through the processes of weathering and volcanic activity. Once phosphate is released into the soil, water, and air, it becomes available to terrestrial food webs. It also enters the oceans via surface runoff, groundwater flow, and river flow, where it becomes part of marine food webs. In these environments, living organisms take up phosphate ions to use in various biological processes such as the synthesis of DNA, RNA, and ATP.
A lizard lives in a desert. Which would be an adapation for this lizard?
The correct answer is :
A number of lizard species have adapted to life in the desert. Some desert lizards have toes lined with spiked scales so they can walk across the sand without sinking in. Others burrow into the sand to escape the intense heat of the desert, to hide from predators, or to look for small animals to prey on.
What do you mean by adaptation?
Adaptation is the physical or behavioral characteristic of an organism that helps an organism better survive in the environment.”Living things are adapted to the habitat in which they live.Because they have special properties that help them survive.Learn more about adaptation below
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Which is a disadvantage of asexual reproduction?
Answer:
The greatest disadvantage is the loss of genetic diversity is the Asexual reproduction allows the plants to reproduce very quickly.
Explanation:
This means the parent plant will be competing with a great number of offspring for the same nutrients, sunlight, and space.
HOPE IT'S HELPFUL
Compare the role of ATP in cells with the roles of RNA
The comparison of the role of ATP in cells with the roles of RNA is that the structure of ATP s made up of ribose sugar, adenine nitrogenous base, and three phosphate groups while RNA is made up of ribose sugar, four nitrogenous bases (adenine, guanine, cytosine, uracil), and one phosphate group.
What is ATP?ATP stands for Adenosine triphosphate. It may be defined as a high-energy compound that provides energy to drive many processes in living cells, such as muscle contraction. It is the major source of energy for use and storage at the cellular level.
Both ATP and RNA possess ribose in their structure. RNA directly involves in the synthesis of protein which plays an essential function in the metabolic processes. While ATP provides direct energy to the cells for their effective functions.
Therefore, the comparison of the role of ATP in cells with the roles of RNA is well described above.
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Which conditions must be regulated for the body to be stable and function properly?
Answer:
The internal conditions must remain stable and constant. Body temperature, amount of water and amount of sugar.
Answer:
The internal conditions must remain stable and constant. Body temperature, amount of water and amount of sugar.
Explanation:
therefore that means that the other person is correct
during the final stage of the cell cycle, cytokinesis allows the cell to finish dividing, creating _____ with ____ copies of DNA. can someone fill in the blanks?
Answer:
During the final stage of the cell cycle, cytokinesis allows the cell to finish dividing, creating
✔ two cells
with
✔ identical
copies of DNA.
Explanation:
edge
During the final stage of the cell cycle, cytokinesis will allow the cell to finish dividing, creating two cells with identical copies of DNA.
Why does cytokinesis occur during the final stage?Cytokinesis is a crucial process that follows cell division by ensuring that the newly formed daughter cells receive their fair share of organelles, cytoplasm and genetic material.
This event marks the culmination of the cell cycle specifically the M phase and is essential for the continuity of life. As the cell undergoes mitosis or meiosis, its genetic material which are organized in chromosomes is equally divided into two daughter nuclei.
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In an experiment, the hypothesis is if the wavelength of the light shining on a plant is shortened, the rate of the photosynthesis is slowed Down. This hypothesis is_____
Testable
Falsifiable
Both of the above
None of the above
Answer:
Both of the above
Explanation:
Falsifiable means that some observation might show it to be false. In this case, I can perform a test in which the wavelength of the light shining on a plant is shortened, and the rate of the photosynthesis is not slowed down; then, the hypothesis is falsifiable.
A testable hypothesis is a hypothesis that can be proved or disproved as a result of testing. Again, I can perform a test in which the wavelength of the light shining on a plant is shortened, and measure the rate of the photosynthesis; then, the hypothesis is testable.
Heat moves from the land to the air through the process of
Answer:
Conduction
Explanation:
Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids, where the particles are closer to together, than in gases, where particles are further apart.
A nonnative species is best described as a species that
A. Does not normally live in an area
B. Has no permanent home
C. Is a poor predator
D. Increase biodiversity
Does not normally live in an area is best describe about nonnative species. thus option A is correct.
What is nonnative species?Non-native species are organisms that do not occur naturally in an area, but are introduced as the result of deliberate or accidental human activities.
Invasive species may arrive in new areas through natural migration. However, other species often introduce them. Human activities are one of the most common ways invasive species are transported to new habitats. The activities can be either accidental or intentional.thus option A is correct
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One day, cars may run on fuel cells. Fuel cells obtain energy from the synthesis of gaseous water from hydrogen and oxygen. If all cars switched from burning fossil fuels to fuel cells, which might you expect to also occur?
Switching all cars to fuel cells would lead to a significant reduction in harmful emissions, decrease global dependence on fossil fuels, and necessitate a shift towards renewable energy to produce hydrogen. It would also involve challenges like developing a comprehensive hydrogen fuel infrastructure.
Explanation:If all cars switched from burning fossil fuels to using fuel cells, we would expect several significant changes. First and foremost, there would be a notable reduction in the emission of harmful pollutants, as fuel cells produce water as their only byproduct. Unlike the combustion of gasoline, which releases carbon dioxide, nitrogen oxides, and particulates into the atmosphere, the synthesis of gaseous water from hydrogen and oxygen in fuel cells results in a cleaner environment. Additionally, the global demand for fossil fuels would decrease, potentially reducing the geopolitical tensions associated with oil production and distribution.
Another consequence could be the transformation of the global energy infrastructure. Energy sources would need to shift towards those that can produce hydrogen efficiently, such as solar and wind power, to supply the hydrogen required by fuel cells. This would accelerate the transition to renewable energy resources, further diminishing the carbon footprint of human activity.
However, the shift to fuel cell technology would also present challenges, such as the development of a comprehensive hydrogen distribution network to refuel vehicles efficiently. This would require significant investment and innovation in storage and transportation technologies for hydrogen, which is highly flammable and requires careful handling.