Answer:
sand; clay
Explanation:
Soils composed mostly of primary minerals will tend to have a higher percentage of sand and a lower percentage of clay than soils composed mostly of secondary minerals.
Soils are porous medium that are made up of minerals, organic matter, water, gases, and microorganisms. Soils are mostly composed of minerals (about 45% to 49%) which are derived from two main mineral types; primary and secondary minerals. Primary minerals are usually derived from igneous and metamorphic rocks in soil, while secondary minerals are produced from the weathering of the primary minerals. Soils that contain mainly primary minerals usually have high amount of sand and silt, and a low amount of clay than soils that contain mainly secondary minerals. Examples of primary minerals are K-feldspars (such as sanidine and orthoclase), and micas (such as biotite).
Which is a base? A. Substance C is formed from the reaction of an acid and a base. B. Substance A gives off H+ ions that combine with OH– ions when dissolved in water. C. Substance B gives off OH– ions that combine with H+ ions when dissolved in water.
Answer:
C. Substance B gives off OH– ions that combine with H+ ions when dissolved in water.
Explanation:
A base is a substance that interacts with water to yield excess hydroxide ions in an aqueous solution.
Bases are certain metallic oxides, metallic hydroxides and aqueous ammonia.
Bases reacts with acids to produce salts which is substance C as described in first option.
Substance A is an acid and it gives off Hydrogen ion.
In chemistry, a base is a substance that donates OH- ions when dissolved in water. Based on the descriptions, Substance B is the base as it releases OH- ions. Substance A acts as an acid by releasing H+ ions, and Substance C is likely a salt, formed from the reaction of an acid and a base.
Explanation:In the context of chemistry, a base is a substance that donates hydroxide ions (OH-) when dissolved in water. Of the substances listed in your question, Substance B exhibits this behavior, as it is mentioned to release OH- ions when dissolved in water. Hence, Substance B is the base. Substance A, conversely, is acting as an acid, as it donates H+ ions. Substance C, the result of a reaction between an acid and a base (a process known as neutralization), is likely a salt.
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Which of the following contains three components of the homeostatic control system?A) stimulus, integrating (control) center, set pointB) receptor, integrating (control), effector organC) receptor, effector organ, set pointD) receptor, integrating (control) center, positive feedback
Answer:
B) receptor, integrating (control), effector organ
Explanation:
Homeostasis is tendency of an organism to maintain stable internal environment by responding to internal and external changes. It involves positive and negative feedback systems. Three main components of the homeostatic control system are:
sensors (receptors) which detect the change and send information to the next component, centercontrol center (usually in brain) which receives the signal process it and activate the next component, efffectoreffectors (usually muscles and glands) which respond to stimuli (the change).A) stimulus, integrating (control) center, set point
Explanation:The correct answer is A) stimulus, integrating (control) center, set point.
In homeostasis, the control system consists of three components:
Stimulus: It is a change in the internal or external environment that disrupts the body's balance.Integrating (control) center: It is the part of the body, such as the brain or spinal cord, that receives and processes information from the receptors.Set point: It is the desired or optimal level at which a physiological variable should be maintained.The other options mentioned in B, C, and D do not accurately represent the components of the homeostatic control system.
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Indicate the pathway of urine formation to urine output by placing each of the structures in the correct sequential order from left to right.
- minor Calyx
- Collecting Tubule
- Nephron
- Collecting Duct
- Urethra
- Major Calyx
- Bladder
- Papillary duct
- Renal Pelvis
- Ureters
Final answer:
Urine formation starts in the nephron and progresses through the collecting tubule, collecting duct, papillary duct, minor calyx, major calyx, renal pelvis, ureters, bladder, and finally exits through the urethra.
Explanation:
Pathway of Urine Formation to Urine Output
The pathway of urine formation to urine output involves several structures where each plays a specific role in this process. Starting with the nephron, which is where urine formation begins through processes such as filtration, reabsorption, and secretion. From the nephron, the urine flows into the collecting tubule, then to the collecting duct. It then proceeds to the papillary duct and enters the minor calyx. Subsequently, urine moves into the major calyx before reaching the renal pelvis.
After accumulating in the renal pelvis, urine passes through the ureters, moving down into the bladder, where it is temporarily stored. Finally, when urination occurs, urine is expelled from the bladder into the urethra, from which it exits the body.
Why does soap dissolve the membrane easily
Answer:
The membrane is made of lipids (fats)
Explanation:
Soap dissolves membranes due to its hydrophilic and hydrophobic properties. The soap molecules align along the membrane, disrupt the structure, and thus dissolve the membrane. This is how soap eliminates germs on hands.
Explanation:Soap has the ability to dissolve a membrane due to its structure. Soaps are made of molecules each with a hydrophilic (water-loving) head and a hydrophobic (water-fearing) tail. When soap comes into contact with these membranes, the hydrophobic tails of the soap molecule attempt to avoid water while the hydrophilic heads interact with water. This leads the soap molecules to align along the membrane, disrupting its structure and thus dissolving it. For example, when soap is applied on dirty hands, it dissolves the membranes of germs, which helps in removing them.
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Ovulation involves the release of the _____________ from a vesicular follicle.
Answer:
mature egg
Explanation:
Ovulation is an event that occurs during the menstrual cycle of the female under the influence of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). Ovarian follicles rupture and release the secondary oocyte ovarian cells from a vesicular follicle. After the release of an egg, it can be fertilized by the sperm during fertilization.
When the nuclear dna of dogs and wolves is found to have a high degree of homology it represents that they shared a common ancestor relatively recently.
a. True
b. False?
Answer:
I'm pretty sure its true
Explanation:
sorry if its not
Considering the wavelengths of light shown below, the pigments in the granum absorb mainly in which range?
A. green, which is why plants are green
B. the infrared
C. the entire spectrum of white light
D. blue-violet and red-orange
Answer:
D. blue-violet and red-orange
Explanation:
The light reactions of photosynthesis use only certain wavelengths of visible light.
Light absorbing molecules known as pigments in the membranes of a granum absorb mainly in blue-violet and red-orange wavelengths. We do not see these absorbed wavelengths. What we see when we look at a leaf are the green wavelengths that the pigments transmit and reflect.
The pigments in the granum primarily absorb light in the blue-violet and red-orange range. Chlorophylls A and B are responsible for this absorption, which excludes green wavelengths, making plants appear green. The correct answer is D. blue-violet and red-orange.
The pigments in the granum, specifically chlorophyll A and chlorophyll B, absorb mainly in the blue-violet and red-orange range of the spectrum. These pigments are responsible for capturing the light energy used in photosynthesis. Chlorophyll A absorbs light with wavelengths in the range of 430 nm to 660 nm, while Chlorophyll B absorbs light with wavelengths in the range of 450 nm to 640 nm. Since these pigments do not absorb light in the green wavelength range (500-600nm), green light is reflected, which is why plants appear green to us. Therefore, the accurate answer to the student's question is D. blue-violet and red-orange.
Nitrogen and phosphorus are important limiting nutrients in some aquatic ecosystems and are determining factors in the amount of phytoplankton growth. When there is a large input of nitrogen and phosphorus the growth of phytoplankton and algae drastically increases, resulting in a large accumulation called an algal bloom and this in turn causes aphotic zones in aquatic ecosystems. In aphotic zones, photosynthetic organisms cannot survive. We would expect this to happen most often in what ecosystem(s)?
A) ocean
B) lake and pond
C) ocean and river
D) river and stream
Answer:
B. Lake and pond
Explanation:
Bcoz they are lentic water bodies.. Nutrients release in that get accumulate easily.. And most of the ponds are present near human zone. Or agricultural fields.
The extra amount of fertilizer flows and get down in ponds and increases the amount of N and P
We would expect this to happen most often in lakes and ponds.
Any object struck at its natural frequency will vibrate violently. This is known as resonance. Applications of this include earthquakes knocking down building and
Answer:
d
Explanation:
Which is not a difference between a population showing exponential growth and a population showing logistic growth? a. food limits b. disease limits c. carrying capacity d. mutation rate Please select the best answer from the choices provided A B C D
A,B AND D are definantly wrong because food and diesease are differences. I belive C is your answer.
Answer:
d. mutation rate
Explanation:
Exponential growth and logistic growth are terms related to the growth rate of a population. Exponential growth refers to the growth of a population relative to growth per individual. That is, it refers to the growth of population size as a result of the increase in the number of individuals in that population.
Logistic growth, on the other hand, refers to the decrease in population size relative to the number of individuals. That is, this growth is related to the death or departure of individuals from a population as a result of limiting factors in the environment.
Both types of growth may differ in the presence of dietary limits, disease limits and carrying capacity. However, the mutation rate (which refers to the frequency of various types of mutations over time.) Is not a factor that differentiates the exponential limit from the logistic limit.
Which most directly led to the increase in food supply as part of the green revolution?
Answer:
the crossbreeding and genetic engineering of crops, such as wheat, rice, and other grains
Wheat rice and grains
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John and Tina has Rick, Helen and Paul. Helen married Patrick and had Molly and Jason with him. Paul married Clair and they had 3 children; Phil, Ana, and Sue. If you have any questions, please ask, and mark brainliest if you can! Thanks so much!
11. Winds are labeled according to which of the following?
a. whether they originate on land or water
b. the direction from which they blow
c. the region in which they can be found
d. none of the above
Winds are primarily labeled according to b.the direction from which they blow. The region where they can be found can also provide additional categorization, but the primary label is the wind's directionality.
Explanation:Winds are commonly referred to and labeled according to the b.direction from which they blow. For instance, a wind coming from the south and moving toward the north is known as a southerly wind. It's important to note that the wind's global location or the region in which they can be found (for example, prevailing westerlies, easterlies, etc.) can also provide additional categorizations, but the primary label for winds relates to their directionality.
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oscar is 75 years old. his doctor has encouraged him to walk briskly each day in order to maintain or improve his cognitive performance. what is the most likely reason for this
Answer:
he might be rinning the marithon and may not have been in shape
Explanation:
On the Earth, there are several scientific classifications for animals of all types, whether scaled, feathered, or furry. When is comes to animals, all are under certain kingdoms. Which of the following would represent animals that are very closely related to one another?
Groups
Genus
Species
Families
Answer:
C.) Species
Explanation:
Since you mentioned classifications for animals, the answer would not be families. Genus is a more general classification for animals and groups aren't even part of the classification for animals, so that would leave us with one answer, species.
Hope this helps ya :D
If an animal had 44 chromosomes in its sex cells, how many chromosomes total will they have?
Answer:
88
Explanation:
Sex cells are usually haploid for chromosome number/ genetic material. Sex cells carry one of the set of alleles of a gene. This means a sex cell has half the number of chromosomes of the autosomal cell. Therefore, in this case, the autosomal cell will have 44 * 2 (=88) number of chromosomes.
Which nursing diagnosis would be most appropriate for a child with idiopathic thrombocytopenic purpura?
Answer:
possible answers
chicken pox
bruise
petechia
nosebleeds
head trauma (bleeding in the brain)
any type of blood disorders
Explanation:
Inadequate tissue perfusion associated with poor platelet formation is the nursing diagnosis that is most appropriate for a child with idiopathic thrombocytopenic purpura.
What is idiopathic thrombocytopenic purpura?Idiopathic thrombocytopenic purpura is a blood confusion distinguished by an irregular reduction in the number of platelets in the blood gradually.
Therefore, it is well described above.
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Which condition would disturb the hardy-weinberg equilibrium and cause the gene pool to change?view available hint(s)which condition would disturb the hardy-weinberg equilibrium and cause the gene pool to change?mating occurs at random.several homozygous recessive individuals leave the population.no mutations occur.all genotypes on average produce an equal number of fertile adult offspring?
Answer:
Several homozygous recessive individuals leave the population.
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Why does the method of building a sustainable lobster fishery with casitas require additional improvements to be considered effective?
The casitas are too complicated to build, requiring far too much human effort.
The cost of the casitas is too large, so cheaper materials need to be found.
The lobsters tend to avoid the casitas, so alternative designs need to be tested.
The materials from which the casitas are made eventually degrade, which adds debris to the water.
Your answer is “the cost of the casitas is too large, so cheaper materials need to be found
The need for improvements in sustainable lobster fishery with casitas comes from the degradation of materials adding debris to the ocean, ecological disruptions from altering natural processes, and high maintenance in harsh marine environments.
The method of building a sustainable lobster fishery with casitas requires additional improvements to be effective because the materials from which the casitas are made eventually degrade. This degradation adds debris to the water, which can harm the marine environment. Moreover, creating structures that interfere with natural processes, like longshore drift, can lead to unintended ecological consequences, such as altered transport patterns for silt and marine life, and may require additional measures, like sand bypass systems, to mitigate negative impacts. Marine structures also face challenges due to the harsh operating environment, high energy consumption, and potential impact on marine life, suggesting a need for designs that better align with nature's way of building.
Decomposers break down dead plant and animal materials. What happens next?
Answer:
Decomposers mine them from the dead so that these recycled materials can feed the living. In the carbon cycle, decomposers break down dead material from plants and other organisms and release carbon dioxide into the atmosphere, where it's available to plants for photosynthesis
Explanation:
Answer:
Decomposers as you said break down dead plants and such, after that. The animal or plant turns into recycled materials that feed other organisms. They then release carbon dioxide into the air.
Explanation:
Which is incorrect about restriction enzymes? they are key tools that make genetic engineering possible. they are found in bacteria and eukaryotes. they produce dna fragments with "sticky" ends. a specific enzyme will always cut at the same sequence. bacteria may possess them naturally to rid themselves of viral dna?
They are found in bacteria and eukaryotes is false
Final answer:
The incorrect statement about restriction enzymes is that they are found in bacteria and eukaryotes; in reality, they are found primarily in bacteria and are essential tools in genetic engineering.
Explanation:
The incorrect statement about restriction enzymes is that they are found in both bacteria and eukaryotes. Restriction enzymes, also known as restriction endonucleases, are primarily found in bacteria. They serve as a defense mechanism against viral infections by cutting foreign DNA that enters the bacterial cell. Each restriction enzyme is specific to a particular DNA sequence, which it recognizes and cuts, producing fragments. This process is crucial in genetic engineering, allowing for the manipulation of DNA sequences. Bacteria naturally possess these enzymes to protect themselves from viral DNA. Moreover, some restriction enzymes produce DNA fragments with ‘sticky’ ends, which are essential for DNA recombination techniques.
The American Chestnut was the predominant tree in American forests until the 1900s when a fungal pathogen was brought to the United States. This pathogen, known as Chestnut blight, destroyed nearly all of the chestnut trees across the country. Now hickories, oaks, and maples are more prominent in mature forests across the US. Which explanation best depicts the occurrences in American forests in the United States?
Answer: Graph C?
Explanation:
Answer: B - Graph B
Explanation: Since the population of oak trees are significantly reduced and the oaks produce the major food source for the squirrels (acorns), the squirrel population will decrease.
41. The sodium–potassium pump is an example of a system that uses primary active transport to set up conditions that will allow secondary active transport, in this case, of glucose. All of the following about the sodium–potassium pump are true except: a. The Na+ –K + pump is an antiporter fueled by the hydrolysis of ATP. b. The subsequent movement of glucose into the cell is against its concentration gradient. c. The pump exports Na+ ions to the outside of the cell and establishes a concentration gradient for Na+ . d. K+ and Na+ both diffuse into the cell along their concentration gradients and drive the transport of glucose. e. The movement of glucose is coupled to the movement of Na+ by a symporter protein.
Answer:
d. K+ and Na+ both diffuse into the cell along their concentration gradients and drive the transport of glucose.
Explanation:
Na/K pump is a pump located on the plasma membrane which uses ATP to move 3 Na ions out the cell and brings in 2 K ions into the cell. It is an example of primary active transport. As a consequence,concentration of Na is higher outside the cell, while K concentration is higher inside the cell.
Glucose is transported in the cell against its gradient, together with Na ions (symport) which move down their concentration gradient.
This is an example of secondary active transport because it uses the energy from the primary active transport to move other substances such as glucose against their own gradients.
in knowledge-based economies, education plays an important role in the lives of citizens and is an important factor in their quality of life. ALL BUT ONE is the result of an appropriate education on one's quality of life.
a. limiting factor. May determine the job an individual will have.
b. May be excluded from the power of networking through social connections.
c. Quantity and quality of available jobs; working hours, safety, ethics of employers.
d. lack of opportunity. Individual will have fewer prospects for economic prosperity in their lifetime.
Answer:
B
Explanation:
Just did the assignment and buddy got me wrong
Final answer:
Education in knowledge-based economies impacts quality of life, career prospects, and economic stability; it also enhances networking. However, b. exclusion from networking is not a typical result of appropriate education.
Explanation:
In knowledge-based economies, education has a profound impact on various aspects of quality of life. Firstly, education acts as a limiting factor in determining the jobs an individual may have, directly influencing career prospects and economic stability. Secondly, through social connections and networking, education opens doors to opportunities that might otherwise be inaccessible. Thirdly, the quantity and quality of jobs, working conditions, workplace safety, and the ethics of employers are all influenced by the level of education and skills of the workforce.
Lastly, a lack of education can lead to a lack of opportunity, resulting in fewer prospects for economic prosperity over an individual's lifetime. Given these outcomes, the result of an appropriate education on one's quality of life that is NOT consistent with the others is being 'excluded from the power of networking through social connections.' An appropriate education typically enhances one's ability to network and build social connections, rather than exclude them.
Which phylum of the gymnosperms includes only a single living species
Answer:
Ginkgophyta
Explanation:
Gymnosperms are seed-producing plants with six phyla: Cycadophyta, Ginkgophyta, Gnetophyta, Pinophyta (Coniferophyta), Pteridospermales and Cordaitales.
Ginkgophyta is a phylum with a single living species-Ginkgo biloba.
Pteridospermales and Cordaitales phyla are now extinct.
Pinophyta (Coniferophyta) is the largest phyla of the Gymnosperms which includes pines, cypresses and relatives.
The gymnosperms phylum which includes only one living species is:
Ginkgophyta only one type survives Ginkgo biloba.
Further explanation
Plants are divided into two, namely vascular plants and vascular plants. Examples of vascular plants are moss, whereas vascular plants consist of seedless plants, which are nails and seed plants. While seed plants themselves are divided into closed seed plants (angiosperms) and open seed plants (gymnosperms).
Seed plants are grouped into two subdivisions, namely open seed plants (Gymnosperms) and closed seed plants (Angiosperms). Gymnosperms are plants that have open seeds. They are a group of seed plants whose seeds are not protected in ovaries.
Gymnosperms consist of several divisions, both extinct and extant, which include 3 divisions that have become extinct and 4 divisions that still survive.
The first extinct Gymnosperms plants include the following which encompasses 3 extinct divisions:
- Bennetophyta
- Cordaitophyta
- Pteridospermophyta, extinct but considered to be the ancestor of Angiospermae.
The second is the Gymnosperms plant that still exists today, which includes four Gymnosperms divisions, including the following:
1) Coniferophyta or can be called Pinophyta
It is a conifers.
2) Gnetophyta
With only 3 members of the genus: Gnetum, Welwitschia, and Ephedra.
3) Cycadophyta
Cycadophyta is divided into two families, namely Cycadaceae and Zamiaceae.
4) Ginkgophyta
Only one type remains: Ginkgo biloba
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Subject: Biology
Keyword: Phylum of the gymnosperms.
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What are phylums??? i have to categorize my house items into different phylums and i have no idea. plzzz help
Answer:
A phylum is a level of classification
Explanation:
If you were to categorize your house into phylums you would organize them into what room they go in or what you use the items for.
________is a haploid cell with half the reproductive information from the parent.
Answer:
gamete
Explanation:
Gamete is a haploid cell with half the reproductive information from the parent.
What are the characteristics of gametes?A gamete is a reproductive cell of an animal or plant. In animals, female gametes are called ova or egg cells, and male gametes are called sperm. Ova and sperm are haploid cells, with each cell carrying only one copy of each chromosome.
The sperm and egg are specialised cells called gametes and are unique in comparison to most of the other cells in the body, as they only contain half the usual number of chromosomes.
Gametes are formed through meiosis (reduction division), in which a germ cell undergoes two fissions, resulting in the production of four gametes.
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If the nucleus of this cell has 84 chromosomes, how many chromosomes would this cell’s sperm cell have? A: 168. B: 84. C: 42. D: 21
Answer:
C. 42
Explanation:
A sperm cell is a sex cell which is a haploid cell and thus has half the chromosomes of a somatic cell which is a diploid cell.
Which structures bring oxygen from the trachea to the lungs?
A.) capillaries
B.) bronchi
C.) alveoli
D.) bronchioles
The trachea is a single tube through with oxygen passes to the double-tubed bronchi as we breathe air inside. The two tubes of bronchi are called left and right bronchi and are often termed as alveoli and bronchioles
I believe the answer is B!
((:
Hope this helps
Answer:
C - Alveoli (I'm pretty sure that's right)
Explanation:
Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream.
What are the 4 base pairs associated with rna?
Adenine, Uracil, Guanine, Cytocine!