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RideAnS [48]
3 years ago
12

Height in humans generally shows a normal (bell-shaped) distribution. what type of inheritance most likely determines height? se

e concept 14.3 (page 281)
Biology
1 answer:
Arturiano [62]3 years ago
8 0
I believe it is a combination of polygenic inheritance and environmental factors. Several genes control the height in humans, giving an overall normal distribution. Environmental factors on the other hand such as nutrition smooth out the curve. It is therefore important to note that Human height is a quantitative, or metric trait, that is, a characteristic that is measured in quantity, and is controlled by multiple genes and environmental factors. 
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Which area of the limbic system regulates thirst, body temperature, and sexual behavior, and helps maintain a steady (homeostati
Katyanochek1 [597]
The answer would be hypothalamus.

Hypothalamus is a part of the brain that located below the thalamus (hypo mean "under"). Hypothalamus can control nervous and endocrine system. It was divided into front/anterior, tuberal and back/posterior part. Thirst would be regulated by anterior and posterior part, temperature by anterior part and sexual behaviour by anterior part.
5 0
3 years ago
The diagram below represents a change in guard cells that open and close pores in a plant) This Change directly helps to A. incr
AveGali [126]

The correct answer is option C, that is, regulate water loss.  

Guard cells refer to the cells enclosing each stomata. They assist in monitoring the rate of transpiration by closing and opening the stomata. The guard cells possess the tendency to monitor the closing and opening of stomata by changing shape. The shape of the guard cells modifies on the basis of the concentration of potassium ions and water found in the cells themselves.  

The stomatal pores get closed when carbon dioxide is no longer needed for the process of photosynthesis. The guard cells swell when movement of water takes place inside these pores, and thus, the opening of stomatal pores occurs, and as water moves out, the guard cell closes. Thus, guard cells play an essential role in regulating water loss.  


5 0
2 years ago
1. Increased efforts to conserve areas such as rain forests are necessary in order to
Nataliya [291]

Answer:

1. Protect biodiversity

2. An indicator species

3. Biomagnification

4. Cutting down all the trees for lumber

5. Bioaccumulation

Explanation:

1. Conserving areas such as rain forests protect biodiversity because rain forests hold one of the highest biodiversity. They carry different types of resources that support different forms of life and at the same time, the organisms that live there support each other as well.

2. An indicator species is an organism that scientists can observe to see if there are changes in the environment it lives in. They judge the change or the implications based on the absence of the species in the environment (in which they used to be present), the presence of the species, and markers of adaptation due to the change in the ecosystem.

3. Biomagnification is a term used when contaminants that were consumed by the organisms in the lower trophic level are passed on to the next trophic level in higher concentrations. This is why those in the highest trophic levels are affected the most because they get the higher concentration of contaminants. DDT was banned when this phenomena was observed.

4. The greatest decrease in rain forest stability would be due to the cutting of trees. We can disrupt stability by gathering resources like nuts from some trees or when you remove one species of plant for medicine. However, the trees are an essential part of the rain forest because each part or area of the tree support different organisms. By cutting the whole trees off and several of them, you doom the organisms that rely on them as well.

5. As mentioned above, bioaccumulation is often interchanged with biomagnification but they differ in the usage of the terms. Like biomagnification, it talks about the accumulation of contaminants in organisms that ingest or absorb them. But bioaccumulation is a term used in a smaller scale, where it talks about the accumulation of the contimants in the tissues of the organism and not how they are passed on.

6 0
3 years ago
3. How can diversity within an ecosystem be compromised?
Lena [83]

Answer:

O by building structures on natural habitat areas

Explanation:

The diversity within an ecosystem can be compromised by building structures on natural habitat areas.

An ecosystem is part of the environment made up of living and non-living components in their natural habitats.

  • Diversity entails variations in the life forms within a particular ecosystem.
  • When human-induced pressure begins to impact the environment, diversity is threatened
  • Nature has its balancing effect the allow for a wide range of organisms to thrive.
  • When human builds structures, part of the natural habitat is lost.
4 0
2 years ago
Read 2 more answers
In a certain plant species, the allele for wrinkled seeds (W) is dominant to the allele for smooth seeds. What is the phenotype
fiasKO [112]
WW and ww would make D. All wrinkled seeds, no smooth seeds.
8 0
3 years ago
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