Answer:
Small intestine is designed to more and more area for absorption of digested food and transfer into the blood for circulation throughout the body. The inner lining of small intestine has a large number of finger-like projections called villi. These villi provide a large surface area for absorption of food.
Explanation:
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➜ The small intestine is the main region for the absorption of digested food. The inner lining of small intestine has millions of tiny finger-like projections called villi. The presence of villi gives the inner walls of the small intestine a very large surface area for absorption of digested food. The villi are richly supplied with blood vessels which take the absorbed food to each and every cell of the body.
Details are underlated or irrelevant details to the topic at hand
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Cross a parent with genotype Rr and the other parent with genotype Rr...make a
punnett square.
Rrx Rr
What is the genotypic ratio of the offsprings?
-4:0
-2:2
-1:2:1
-1:1:1
Answer:
R r
R RR Rr
r Rr rr
Explanation:
1:2:1 is the genotypic ratio
Water is transpired through stomata, but carbon dioxide also must pass through stomata into a leaf for photosynthesis to occur. There is evidence that the level of carbon dioxide in the atmosphere has not always been the same over the history of life on Earth. Explain how the presence of a higher or lower concentration of atmospheric carbon dioxide would impact the evolution of stomata density in plants.
Answer:
Escribir en español, por favor.?
During those high-carbon-dioxide times, plants that produce fewer stomata,
when carbon dioxide levels are low, plants need many stomata in order to scrape enough carbon dioxide to survive.
How does carbon dioxide affect water uptake?Plant water use, an increase in atmospheric CO2 means that stomata, or the pores on leaves that exchange gases between the leaf and the atmosphere, do not need to open.
Thus, carbon dioxide levels are low, need many stomata in order to scrape enough carbon dioxide to survive.
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Compare and contrast gradualism and punctuated equilibrium. Provide at least one comparison and one difference in your answer. You may use examples for each if that helps you with answering the question.
Answer:
Gradualism and punctuated equilibrium both are the process of evolution of species over time. However, the gradualism process involves the evolution that occurred slowly, occurring in small periodic changes in the gene pool over a long period of time. Whereas Punctuated equilibrium takes place there are longer periods of apparent stasis interrupted by the sudden change.
They both help in finding the relative change in evolution rate and assist in the study of the anatomical changes occurred during the evolution in different kind of animals or organisms.
In 1847, the German biologist Christian Bergmann noted that mammals and birds living at higher latitudes (farther from the equator) are on average larger and bulkier than related species found at lower latitudes. Suggest an evolutionary hypothesis to explain this observation.
Answer:
not quite sure how to do the hypothesis but its likely to be something to do with the fact that they need more fat and muscle due to the thinner atmosphere as respiration is harder to occur.
Explanation:
Very rapid (i.e. in 1-2 seconds) responses to maintain normal blood pressure during a sudden decrease in blood volume by hemorrhage can be initiated by Group of answer choices secretion of ADH from the posterior pituitary. vasoconstriction of capillaries. baroreceptors in the aortic arch. vasodilation of precapillary sphincters. Two of the answers are correct.
Answer:
vasoconstriction of capillaries.
baroreceptors in the aortic arch.
Explanation:
Vasoconstriction of capillaries and baroreceptors in the aortic arch are the two quick responses of body to maintain normal blood pressure during hemorrhage. Vasoconstriction is very necessary for lowering acute blood loss during hemorrhage means escape of blood from a ruptured blood vessel as well as maintain body heat and arterial pressure. The function of baroreceptors is to respond to the change in the tension of the arterial wall when blood pressure changes.
Mom has type B blood. Dad has type O blood. They have a child with type O blood.
What is the genotype for mom?
IAI
O IAIB
O IBI
IBIB
The genotype for mom is O IBI.
The genotype of an organism is its complete set of genetic fabric. Genotype can also be used to consult the alleles or editions a man or woman contains in a particular gene or genetic place.
A genotype is a scoring of the form of variation gift at a given vicinity (i.e., a locus) in the genome. it can be represented by way of symbols. as an instance, BB, Bb, and bb may be used to represent a given variant in a gene.
A person's genotype is the mixture of alleles that they own for a selected gene. A person's phenotype is the combination of observable traits or trends. while an organism's genotype is at once inherited from its parents, the phenotype is merely influenced by way of genotype.
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a plane mirror is useful for seeing
Which organization would not have to abide by OSHA guidelines?
a. nuclear plant
b. religious-based corporation
c. family run business with only local employees
d. all organizations must abide by OSHA guidelines
Correct ans: Nuclear plant :)
Answer:
b. religious-based corporation
GIVING BRAINLIEST ANSWER CORRECTLY FOR 40 POINTS
List 3 people from the history of biotechnology and write one sentence about each persons contribution
Answer:
Karl Ereky
Explanation:
He discovered it
What will happen to a tide pool itself if star fish are removed from the ecosystem?
Answer:
the ecosystem will be disturbed... the animals feeding on it will be reduced due to lack of food and the animals on which the star fish was feeding will be increased which causes a total imbalance in ecosystem..
HELP! whoever does these gets brainliest!!
Answer:
blood crime scene arson murder footprint
How can someone see in a dim room
Increasing the alveolar ventilation rate will Group of answer choices increase the partial pressure of oxygen in the alveoli. decrease the rate of oxygen diffusion from the alveoli to the blood. increase the partial pressure of carbon dioxide in the alveoli. decrease the rate of carbon dioxide diffusion from the blood to the alveoli. have no effect on either the partial pressure or diffusion rate of gases.
Answer:
Increasing the alveolar ventilation rate will increase the partial pressure of oxygen in the alveoli.
Explanation:
Alveolar Ventilation rate is the rate of air flow in the alveoli of the lung during normal breathing. It is measured in milliliters of air per minute (mL/min). The alveolar ventilation rate is an important factor in determining the concentrations (partial pressures) of oxygen and carbon dioxide in the functioning alveoli.
A high rate of alveolar ventilation, would result in a rapid influx of oxygen-rich air and efflux carbon dioxide-filled air from the alveoli. This ultimately results in an increase in the concentration of oxygen and a decrease in the concentration of carbon dioxide within the alveoli.
Effects of alveolar ventilation on partial pressures of alveolar carbon dioxide and oxygen (PACO₂ and PAO₂)
If the alveolar ventilation rate is increased (and carbon dioxide production is unchanged), then the partial pressure of carbon dioxide in the alveoli, PACO₂ will decrease.
If the alveolar ventilation rate increases, then the partial pressure of oxygen in the alveoli, PAO₂ will increase.
YALL PLEASE HELP 90 points ;(
Answer:
it is too small so i can't see it
Answer: Could you make it bigger because I don't have my glasses. Thx and will answer when problem is solved.
Explanation:
What needs to happen in order for two populations to be isolated?
Answer:
Isolation means that organisms of the same species are separated, and happens when there is something between the organisms that they can't cross.
Explanation:
Organisms become isolated as a result of environmental change. The cause of isolation can be gradual, like when mountains or deserts form, or continents split apart.
Is a bacteria cell more complex than a plant cell?
What are the three main differences between active transport and passive transport?
Answer:
i hope this helps : )
Explanation:
This act was signed into law on August 6, 1965, by President Lyndon Johnson. It outlawed the discriminatory voting practices adopted in many southern states after the Civil War, including literacy tests as a prerequisite to voting.
What is structure 1?
Answer:
Bro give a chart or something not just a question with no info.
Explanation:
Define Seafloor Spreading.
Answer:
This is your answer
Answer: formation of new areas of oceanic crust, which occurs through magma at mid-ocean ridges
Explanation: so a new oceanic crust is formed by magma at mid-ocean ridges.
Kudzu, a plant native to eastern Asia was introduced into America in 1876. In 1935, Kudzu was planted along southern roadways to control soil erosion. Adding a foot of vine a day in the spring and summer
kudzu quidity grew out of control. Why can introducing a new species to an existing ecosystem often be a disaster?
A The new species can create excess nutrients in the soil that can damage native species
The series can harminative anime and damage the ecosystem
Answer:
Due to lack of biological gent.
Explanation:
Introducing a new species to a new ecosystem often leads to a disaster because of the absence of bioagent for that species. Bioagent are those organisms which has the ability to control other organisms by feeding on them. A new species does not make problem in its old or original ecosystem due to the presence of controlling agents but in the new ecosystem there is no bioagent that can stop its growth so that's why sometimes the introduction of new species leads to a disaster.
Using the picture below, what is the BEST question that a student could ask that would help determine which aquatic biome this is depicting?
A.
Does the temperature of the water affect the salinity?
B.
Is there a variation in water pressure throughout the day?
C.
Is there a fluctuation in water salinity throughout the day?
D.
Is there variation in water temperature throughout the day?
Answer:
Explanation:
Using the picture below, what is the BEST question that a student could ask that would help determine which aquatic biome this is depicting?
A. x
Does the temperature of the water affect the salinity?
B. x
Is there a variation in water pressure throughout the day?
C. x
Is there a fluctuation in water salinity throughout the day?
D. right
Is there variation in water temperature throughout the day?
A lamprey eel fastens itself to a host fish, such as a lake perch, and feeds on it. When the fish dies, the lamprey finds another host. Which type of symbiosis is this?
The Chesapeake Bay, which is along the coast of the Eastern U.S., is the largest estuary in the country. Many rivers, including the Potomac, empty into this section of the Atlantic Ocean.
During the 1970s, areas of the bay were found to have low levels of oxygen and could not support life. What was the cause of this problem?
Answer: B. High levels of nitrogen and phosphorus from agriculture runoff, sewage, and etc
Explanation:
i did it off study island
D
Question 2
1 pts
Because the ANS is a visceral motor system, afferent pathways are of no importance
and actually are rarely found.
True
False
Answer:
The correct answer is - false.
Explanation:
The ANS is a system consider as the visceral motor system, however, the afferent pathways are the system that is used to flow the signals to the control center from taking from the receptor and are very essential for the homeostasis communication of the nervous system.
This pathway involves the neurons with the signals to the spinal cord and the brain as sensory data. This pathway is very common to provide communication between the receptor and spinal cord.
A rock is an (blank) of minerals.
Populations of caribou show a cyclical fluctuation with predictable patterns in Norway. Reindeer populations are higher in the
southern regions in winter months while populations are higher in the northern regions in the summer months. Infer the cause of
these predictable changes for the Norwegian reindeer populations.
-))
A)
B)
C)
Reindeer migrate from north to south in the winter months to reach more
fertile feeding grounds. They migrate to the north in summer months.
The reindeer migrate from north to south in the summer months to reach
more fertile feeding grounds. They migrate to the north in winter months.
The reindeer populations migrate to an intermediate location in Norway to
mate and then diverge to the northernmost and southernmost regions to
avoid competition for food.
There are two species of reindeer in Norway. The northernmost species
reproduces in the winter, causing an increase in population size. The
southernmost species reproduces in the summer, causing an increase in
population size.
D)
Answer:D
Explanation:
Polo g the goat
Answer:
the correct answer is a
Explanation:
Why is it important for nitrogen to be more abundant in our atmosphere than oxygen?
A. Oxygen is only breathable if diluted with nitrogen.
B. Nitrogen and oxygen combine to produce weather that is essential for life.
C. Oxygen must be diluted because it is a highly combustible gas.
D. Nitrogen is a heavy molecule that pulls oxygen, a light molecule, to the surface for oxygen-dependent life to use.
(also report this idiot called americanlove if spot him, for the last 2 hours he has been going to almost every post just to steal points for no reason)
Answer:
Choice C
Oxygen must be diluted because it is a highly combustible gas.
Oxygen must be diluted because it is a highly combustible gas is important for nitrogen to be more abundant in our atmosphere than oxygen.
Why nitrogen is important?Nitrogen is extremely important to living material. Plants, animals and humans could not live without it.
The major source of nitrogen is the atmosphere. It exists as a colorless, odorless, nontoxic gas and makes up about 78 percent of the atmosphere. Nitrogen is also found in the Earth's crust as part of organic matter and humus.
Our atmosphere's nitrogen gas is a molecule made up of two nitrogen atoms. This kind of nitrogen can't be utilized by plants directly. Before it can be utilized by plants, nitrogen needs to be transformed into other forms.
Therefore, Oxygen must be diluted because it is a highly combustible gas is important for nitrogen to be more abundant in our atmosphere than oxygen.
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Need help with this will make brainliest if right
Research on the different thermal conductivities of different materials. From the different values of the thermal conductivities give seven example of conductors and seven example of insulators
Answer:
conductors are like silver, gold, copper, steel, sea water, and iron. insulators are rubber, glass, oil, diamond, dry wood, and insulation.
Explanation:
correct answers only please!