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Marizza181 [45]
3 years ago
10

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? A. The hormone melatonin

induces sleep and its production is slowed by exposure to light. B. The hormone cortisol suppresses the immune system and is produced when the body is under stress. C. The hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. D. The hormone oxytocin promotes labor contractions of the uterus during childbirth.​
Biology
2 answers:
creativ13 [48]3 years ago
6 0

Answer:

I believe the answer is C

Explanation:

I could be wrong.

podryga [215]3 years ago
3 0
<h2>Answer:</h2>

Statement C best supports the role played by the hormone in regulation of homeostasis.

<h2>Explanation:</h2>

Homeostasis is the maintenance of the inner conditions of the cells and entire life forms, for example, temperature, water, and sugar levels. This keeps cells and creatures working at ideal levels in any event, when tested by inside and outer changes.

Among the role of hormones mentioned in the option, the role of hormone erythropoietin gives clear idea about the role of hormone during homeostasis process. The hormone erythropoietin increases the production of red blood cells when oxygen levels are low and thus maintains the condition required for the normal body function.

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A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR).
igomit [66]
So I don’t see answer choices here, but your answer is 50% of the offspring will be homozygous dominant with RR, and 100% of them will carry a homozygous dominant gene of Rr

If you take the two sets and put them into a punnett square, it would look like this (image attached):

When the two sets of alleles are crossed, you would end up with half of your pairs being fully dominant (RR), and the other half being dominant while containing a recessive gene (Rr). Since there’s only one recessive gene in these pairs, it gets overridden and the pair itself is dominant.

So your answer is 50% will be homozygous dominant with RR!

7 0
3 years ago
Cross sections of different areas of the same plant show cells with very
AnnyKZ [126]

Answer:

C. The cells in these two areas have different functions.

Explanation:

The plant tissues are classified into three major systems: vascular, epidermic, and root systems. The vascular system is formed by tissues referred to as xylem and phloem. The epidermis is composed of superficial tissues that cover plant organs (i.e., leaves, stem, roots, etc). Finally, the root system is formed by tissues whose function is to supply to other plant tissues and store nutrients. Moreover, the plant tissues are also classified into meristematic and permanent tissues. In this case, it is reasonable to suppose that structurally different plant cells that are located at different areas of the plant will have distinct functions.

6 0
3 years ago
Which organ plays the primary role in prompting individuals to seek food?
SIZIF [17.4K]
The organ which plays the primary role in prompting individuals to seek food is the brain. The brain is one of the most important organ of the nervous system. It is comparable to the CPU of a computer. It is repsonsible of processing information that it is receiving from all the senses and send the message back to the organs for a response.
8 0
4 years ago
A scientist has discovered a new plant species in the Amazon rainforest she tells her fellow scientist at the Playhouse she has
Anna11 [10]

Answer:

It is a seeded vascular plant.

It does not depend on insect pollination.

Explanation:

The complete question is: <em>A scientist has discovered a new plant species in the Amazon rainforest. She tells her fellow scientists that the plant she has found produces a cone. What might they say about how this plant is different from an angiosperm? Its seeds have one or two cotyledons. Its stems' vascular bundles are scattered. It does not depend on insect pollination. It is a seeded vascular plant. </em>

<em />

<em>The correct option would be that the plant is a seeded vascular plant and does not depend on insect pollination.</em>

Gymnosperms are the only group of plants that produce cones. They are one of the plant groups that have vascular tissues in the form of xylem and phloem as well as been able to produce seed in the form fo cones. Hence, they are said to be seeded vascular plants.

Gymnosperms also carry out their pollination by relying solely on wind for the transfer of their pollen grain to the female organ. In other words, they do not depend on insect for pollination.

8 0
4 years ago
Species a diverged from species b 60,000 years ago. On a particular gene, they have 15 nucleotide differences. How many nucleoti
a_sh-v [17]

The given question says that b species diverged around 60,000 year ago from species a. Since the divergence, they have a nucleotide difference of 15 nucleotide.

We need to find out the nucleotide difference in another 240,000 year, which means a total of 300,000 year since divergence.

The nucleotide difference in 60,000 years = 15 nucleotide.

The nucleotide difference in 1 year =\frac{15}{60,000}  nucleotide.

The nucleotide difference in 300,000 years = \frac{15}{60,000}\times 300,000 nucleotide.

The nucleotide difference in 300,000 years = 75 nucleotide.

Hence, after another 240,000 years or 300,000 years since divergence, the species and species b would show a difference of 75 nucleotide.

In another 240,000 years, there would be 60 nucleotide difference, as 15 of the nucleotide are already different in initial 60,000 years from the total of 75 nucleotide difference in 300,000 years. So, 60 (75-15) nucleotide difference would be observed in next 240,000 years.


4 0
3 years ago
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