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AleksAgata [21]
10 months ago
8

How does blood defend against pathogens and toxins

Biology
1 answer:
Darina [25.2K]10 months ago
5 0

Blood carries immune system cells, known as white cells or leukocytes. Some examples of white cells are phagocytes and lymphocytes.

Phagocytes ingest and dissolve pathogens, as well as strange particles or dying cells.

Lymphocytes are divided into T cells, B cells, and natural killer cells (NK). B cells produce antibodies to respond to foreign cells, T cells attack pathogens using enzymes and other non-antibodies responses, while NK cells combat tumors and cells infected by viruses.

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This can occur when part of a population of a species becomes separated from the remainder, they may over time evolve different
Basile [38]
This definition above refers to the geographic isolation.
It means exactly what it says in the definition - one species is left behind from the rest of the population, and it stays in that particular location, evolving and changing from the species and population it was once a part of.
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A moving hang glider has ____ energy, which converts to _____ energy once the hang glider stops.
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A moving hang glider has kinetic energy, which converts to potential energy once the hang glider stops.
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The correct answer is Photosynthesis

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3 years ago
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When conducting a population sampling study, on the first capture attempt, we _______ the captured individuals.
deff fn [24]

When conducting a population sampling study, on the first capture attempt, we tag, count, and release the captured individuals. Thus, option "D" is correct.

<h3>What is the mark-recapture method?</h3>

This is a method commonly used in ecology to estimate the animals in the population. A portion of the population is captured, marked and released. Another part of the population will, later on, be captured. This can be used to estimate the population in an assumption that the portion that was captured is proportional to the entire population. This is obtained by dividing the number of marked individuals by the individual marked on the second capture. This is one of the simplest and most practical methods of estimating the population.

Thus, option "D" is correct.

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How do archaea and bacteria differ?​
Lunna [17]

Answer:

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Explanation:

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2. The bacteria are capable of spore formation, which can lie dormant for long periods of time until a suitable condition is found for their growth. The archaea are not known to form such spores.

3. The genes of the archaea are more similar to the eukaryotes than the bacteria.

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5. The bacteria use the process of glycolysis and follows Kreb's cycle for glucose break-down. The archaea do not undergo glycolysis or Kreb's cycle.

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3 years ago
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