Which statement is true about the thyroid hormones? (1) They increase the rate of metabolism in cellsthroughout the body. (2)They control how quickly cells use energy. (3) They are not steroid hormones.
(4) They are released by the parathyroid glands.
a. 1 only
b. 1 and 2
c. 1, 2, and 3
d. 1, 2, 3, and 4

Answers

Answer 1
Answer: The answer would be a. Thyroid hormones control metabolism. 
Answer 2
Answer: the correct answer is option 1

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How do carriers/heterozygotes keep the lethal gene in population?

what cycle do some viruses use to insert the viral dna into the host cell dna before it enters a lytic cycle?

Answers

Some viruses uses Lysogenic cycle to insert the viraldna into the host cell dna before it enters a lytic cycle.

The lysogenic cycle also referred to as nonvirulent infection, includes the virus integrating its genome with the genome of the host cell in order to replicate without destroying the host. An example is the structure of a bacteriophage. To reproduce, the phage should first penetrate the host cell.

The lysogenic cycle is characterized by The phage infecting a bacterium and inserting its DNA into its chromosome, enabling the phage DNA (now known as a prophage) to be replicated and transferred on alongside the cell's own DNA.

The lytic cycle includes virus reproduction by utilizing a host cell to produce more viruses, which then ruptured out of the cell. The viral genome is incorporated into the host cell genome during the lysogenic cycle, infecting it from within.

For more information on Lysogenic cycle, visit :

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What is purpose of the gowth light

Answers

The purpose is to stimulate plant growth by emitting electromagnetic spectrum appropriate for photosynthesis 

Stimulate:Rise levels of physiological or nervous activity in

Hope this helps ^-^

The largest what an area can support is called carrying capacity

Answers

Carrying capacity is the largest population of a species an area can support.

The placenta forms from the combination of fetal tissue and tissue from what structure?

Answers

The placenta forms from the combination of fetal tissue and maternal tissue. The placenta is used a barrier between the fetus and mother, and plays three important roles. First, it attached the fetus to the uterine wall. Second, it expels the fetus' waste products to the mother's blood. Third, it allows the mother to pass on plenty of nutrients to the fetus throughout the pregnancy.

Your _____ indicates that the relative humidity is very high. Rain probably _____ occur. anemometer; will anemometer; won't hygrometer; will hygrometer; won't

Answers

The answer is hygrometer, will.

Your hygrometer indicates that the relative humidity is very high. Rain probably will occur. 
Hygrometer is an instrument used for measuring the relative humidity in the atmosphere. If the relative humidity is very high, then it rain will probably occur and vice versa.
Anemometer is an instrument used for measuring wind speed, thus it cannot be the right answer.

For this assignment from earth science and earth’s weather and climate unit you have to complete the statements shown above.


Answer: Your Hygrometer indicates that the relative humidity is very high. Rain probably will occur.


I hope this helps, Regards.

Which type of selection leads to increased phenotypic and genetic variation? directional selection disruptive selection stabilizing selection species selection

Answers

The circumstance that concludes whether the organism will be able to accommodate and endure in the changed conditions is called selection.

The correct answer is:

Option B. Disruptive selection.

This can be explained by:

  • Disruptive or diversifying adaptation occurs when there is a change in population genetics in which the traits are valued over intermediates.

  • This type of assortment supports either the dominant or the recessive trait but do not favour intermediates.

  • For example, in selection between tall, short or intermediate organisms the tall and short will be selected over the medium heightened organism.

Therefore, disruptive selection will lead to increased phenotypic and genetic variation.

To learn more about disruptive selection follow the link:

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Answer:

diruptive selection/ diversifying selection

Explanation:

disruptive selection often leads to more variations in species