How do the scrotal muscles help maintain temperature homeostasis of the testis?

Whats the main benefit of genetic biodiversity

kolezko [41]

Explanation:

Genetic diversity is important because it could ensure that certain groups of individuals , species , or populations will be able to adapt to certain environmental factors. besides having to deal with environmental conditions , genetic diversity renders them THE ABILITY TO RESIST EMERGING DISEASES AND EPIDMICS.

4 0

3 years ago

There are two types of pea plants: those that produce round seeds and those that produce wrinkled seeds. A single gene controls

Mkey [24]

Dominant, <span>if a dominant allele (wrinkled) and a recessive allele (round) are together, forming a heterozygous plant, any possible combination of alleles is possible when the plant breeds, so the seed with a wrinkled allele can still produce round seeds. </span>

3 0

3 years ago

As a baby, Gina was exposed to a pathogen. Because of passive immunity, Gina's body was able to fight off the pathogen before sh

Serhud [2]

First of all, it is important to understand the difference between passive and active immunity.

Passive immunity is when we are given antibodies that were not produced by our own body (for example those transferred from mother to child, or those taken as part of medication or therapy - note that the former would be an example of naturally acquired passive immunity and the latter of artificially acquired passive immunity).

Active immunity, on the other hand, refers to antibodies that were produced by our own bodies due to exposure to a pathogen or part thereof - this can also be naturally acquired, such as when we are infected by a pathogen, or artificially, such as when we are vaccinated.

Given this information, what enabled Gina to fight the pathogen would be the second answer (antibodies she received from her mother), however we can also look at the other answers and discount them as false to be sure:

Answer 1 - high fever caused by a pathogen

The question states that Gina was able to fight off the pathogen before she got sick - a fever suggests that:

a) she is already sick

b) her body is launching its own immune response

Answer 3 - antibodies she received from a vaccination

The antibodies produced as a result of vaccination are produced by your own body (despite being stimulated artificially through exposure to the pathogen), thus this is not the correct answer.

Answer 4: inflammation caused by antibodies

This answer is incorrect due to the fact that antibodies do not directly cause inflammation.

Thus, the correct answer is the second one 'antibodies she received from her mother'.

Hope that helps :)

3 0

4 years ago

Read 2 more answers

What two elements have the same number of energy level (shells)?

melomori [17]

Answer:

Elements that are found in the same horizontal row (belong to the same period) in the periodic table, e.g. Fluorine and Neon both have the same energy level of 2.

<em>Note: The question does not specify any two elements.</em>

Explanation:

The modern periodic table is organized into eight vertical columns known as groups and seven horizontal rows known as periods. The atomic number ( number of protons in the nucleus) of elements increases when moving across the periodic table from left to right. The horizontal rows or periods represents an energy levels or the number of electron shells in an element. Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found. Elements belonging to the same period have the same number of energy level or shells. For example, the elements belonging to Period 2 include lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon. These all have the same number of energy level of 2.

7 0

3 years ago

Because lymph vessels are very low-pressure conduits, movements of adjacent tissues are important in propelling lymph through th

Fudgin [204]

Answer:

True.

Explanation:

Lymphatic system is one of the most important system of the body that carries the lymph fluid towards the heart. This system plays an important role in the body immune system.

The pressure in the lymph vessels are very low. The movement of adjacent tissue in the lymph is important to propel it through the lymphatics. The intrinsic or extrinsic compression are important for the lymph flow.

Thus, the correct answer is True.

6 0

3 years ago