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Sav [38]
3 years ago
13

Explain How an immune system response starts after a macrophage attacks a pathogen || I need it fast please help

Biology
1 answer:
dybincka [34]3 years ago
5 0
After the macrophage fails the Helper T Cell stimulates the B cells if pathogen is extracellular and Cytotoxic T Cells if the pathogen is intracellular. Once the pathogen is killed the B Cells create Memory B Cells and the Killer T Cells create memory T Cells.
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~convert energy<br> ~have its own DNA<br> ~found in almost all cells<br> ~enclosed by two membranes
g100num [7]
<span>(Chloroplasts)
are found in unicellular organisms such as plants, and
(Mitochondria)
 is found in almost all cells. (Chloroplasts convert light energy into sugar using photosynthesis,) and the (mitochondria converts sugar into ATP using cellular respiration.)

Both the mitochondria and chloroplast convert energy, have its own DNA, and are enclosed by two membranes.

:) Good? </span>
7 0
3 years ago
What was the strength of the Southern colonies?
tester [92]
The answer for your question is 1. Easy to grow crops
4 0
3 years ago
Parent 1
Nitella [24]

The Punnett square is a valuable tool, but it's not ideal for every genetics problem. For instance, suppose you were asked to calculate the frequency of the recessive class not for an Aa x Aa cross, not for an AaBb x AaBb cross, but for an AaBbCcDdEe x AaBbCcDdEe cross. If you wanted to solve that question using a Punnett square, you could do it – but you'd need to complete a Punnett square with 1024 boxes. Probably not what you want to draw during an exam, or any other time, if you can help it!

The five-gene problem above becomes less intimidating once you realize that a Punnett square is just a visual way of representing probability calculations. Although it’s a great tool when you’re working with one or two genes, it can become slow and cumbersome as the number goes up. At some point, it becomes quicker (and less error-prone) to simply do the probability calculations by themselves, without the visual representation of a clunky Punnett square. In all cases, the calculations and the square provide the same information, but by having both tools in your belt, you can be prepared to handle a wider range of problems in a more efficient way.

In this article, we’ll review some probability basics, including how to calculate the probability of two independent events both occurring (event X and event Y) or the probability of either of two mutually exclusive events occurring (event X or event Y). We’ll then see how these calculations can be applied to genetics problems, and, in particular, how they can help you solve problems involving relatively large numbers of genes.

3 0
3 years ago
Two individuals are heterozygous for Lactase Persistence, if they had children, how many would have lactase persistence?
Elena-2011 [213]
Because of the Law of Segregation, the ratio would be 1:3. Meaning 3 kids with lactase persistence.
3 0
3 years ago
Which of these statements explains the origins of life on earth
Arada [10]
You didn’t link the statements but i think the earth life originates from the big bang which formed small living organisims.
7 0
4 years ago
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