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son4ous [18]
3 years ago
9

Im not sure what the answer is please helpppp

Biology
1 answer:
Zanzabum3 years ago
5 0
The answer is B because the humoral immune response is mediated by antibody
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Which weighs more: a pound of feathers or a pound of lead? Explain.
ki77a [65]

Answer: both weigh the same.

This is a very obvious question just because the lead is heavier that does not mean it ways more than the other. One pound of feathers is the same as one pound of lead

6 0
3 years ago
Insect wings may have begun to evolve as lateral extensions of the body that were used as heat dissipaters for thermoregulation.
Mariulka [41]

Exaptation

Explanation:

In this example, the lateral extensions that developed were meant for thermoregulation.

But these became sufficiently large to support gliding through the air and later on were used for flight.

Thus the structure assumed a function for which it was not meant and its original function shifted to a completely different dimension giving rise to modern insect wings. So we can say that this is an example of Exaptation.

8 0
3 years ago
What soil composition would be best for availability of nutrients, water, and root development? A. equal amounts of sand, clay,
Travka [436]

Soil composition would be best for availability of nutrients, water, and root development higher proportion of humus; lower amounts of clay and sand

Compared to the lower soil layers, the topsoil or surface soil often includes more organic matter and air but less clay. The topsoil typically has the highest concentration of plant roots and is more fertile than the other layers.

  • Nutrient management includes managing the composition of the soil. Minerals, organic material, water, and air are the fundamental elements of soil. Typically, 45% of the soil is made up of minerals. 5% organic material 20–30% water and 20–30% air are used. At best, these percentages are merely generalizations.
  • Numerous nutrients are found in soil, which are obtained from dead plants and animals. The plants eat these nutrients as nourishment. So soil contributes to the growth of plants by giving them sustenance in the form of nutrients.

To learn more about Soil composition it visit : brainly.com/question/15015701

#SPJ4

3 0
1 year ago
The word that means of lesser rank is _____.
Aleks04 [339]
The word that means of lesser rank is called subordinate. Anyone that is rank lower or below another employee by seniority or position in the office is called a subordinate. In business ethics, a subordinate must respect and obey his/her boss or superior. He/she also takes orders and instructions from the boss in order to carry out a task as asked by the boss. The subordinates are those employees that serve as the hands of the company because they are the ones who worked so hard for the achievement of the company's goals and visions.
7 0
3 years ago
Which characteristic of a protein may change during a DNA mutation?
patriot [66]

Answer:

Sequence of amino acids by the ribosome are the characteristic of a protein may change during a DNA mutation. Explanation: Point mutations can cause significant changes to an organism if they alter the way a protein functions. A mutation in DNA changes the mRNA, which in turn will change the amino acid chain.......

Explanation:

3 0
3 years ago
Read 2 more answers
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