Through my research I found questions similar to this with answer choices:
A) medicinal material excreted by macrophages
B) the death of macrophages
C) pathogens trying to infect the area
D) blood cells losing their hemoglobin
The best answer among the following choices would be the second option aka B) The death of Macrophages because cutting your knee is cutting your skin since something sharp went through the layers it basically killed things in order to get to you, to make you feel the pain, so as a result of the cut, it killed the macrophages, which are like your security system for your immune system that protects you, but the cut broke through and harmed the skin.
<span>A snake that eats a frog that has eaten an insect that fed on a plant is a FOOD CHAIN
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The correct answer is C. 50 %
A male is a carrier of a recessive somatic mutation it means the mutation can be expressed under homozygous condition, when both the alleles with somatic mutation. Thus, in case of a male carrier of a recessive somatic mutation marries to a normal female will produce 50 % their offspring with recessive somatic mutation so, they will be carrier and 50 % offspring are without this mutation.
<span>"All organisms have the same proteins.
Proteins are composed of amino acids.
</span>The four bases in DNA are adenine, cytosine, guanine, and thymine.
These four are divided into two groups. The pyrimidines, the single-ring nitrogenous bases, is where thymine and cytosine is included. The purines, the double-ring nitrogenous bases, includes adenine and guanine.
<span>Cytosine will only bond with guanine; they form three hydrogen bonds. Adenine will only bond with thymine forming two hydrogen bonds."
Thanks @Taskmasters</span>
