The B-cell receptor (BCR) <span> is composed of </span>immunoglobulin molecules<span> that form a type 1 </span>receptor protein, which is <span>usually located on the </span>outer surface<span> of </span>B cells. <span>The immunoglobulin is part of the </span>B cell receptor<span> (BCR), which allows a </span>B cell<span> to reveal when a specific antigen is present in the body and triggers </span>B cell<span> activation.</span>
Answer:
Spontaneous generation / abiogenesis
Explanation:
Long ago, philosopher still debating where did living organism come from. Aristotle came up and hypothesized that living being can come from inanimate matter (without any genetic transfers from the parents of that particular organism) . This theory called spontaneous generation.
Spontaneous generation had later on proven to be false and living being is not spontaneously created, but come from reproduction of the same species which passed on their genes to the next generation.
Answer:
<em>The labels <u>I-VII</u> represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.</em>
Ketamine could lead to these sorts of secondary effects. By taking this medication, the patient would be made more comfortable, especially in the surgical setting, but it could also lead to secretions that might make it more difficult for the patient to have a clear breathing pathway during the procedure.
Hello :) the answer is:
Prokaryotic cells have no nucleus, eukaryotic cells do
I hope this helps.