(a) is false since antibodies are produced by body humoral immune system
The cell shrinks because of the movement of water away from the cell into the more concentrated salt solution.
Osmosis is the movement of water from one region to another through a semi - permeable membrane. A hypertonic solution contains more solute than the cell.
In this case, the external salt solution is hypertonic because it contains a 8% salt concentration whereas the cell contains only a 0.9% salt concentration. As such, water moves out of the cell into the solution.
The cell shrinks because of the movement of water away from the cell into the more concentrated salt solution.
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Answer:
Explanation:
1. Microbes play defense. The oodles of microbes that live on and inside us protect us from pathogens simply by taking up space
2. Microbes boost the immune system
3. Microbes protect us from auto-immune diseases.
4. Microbes keep us slim. Microbes play an important role in our body shape by helping us digest and ferment foods, as well as by producing chemicals that shape our metabolic rates.
5. Microbes detoxify and may even fight off stress.
<span>The internal structue and phylogenetic relationships were not considered in early taxonomic classifications. Early classifications were mostly based on morphological characters like height, shape, color etc. The organisms have evolutionary relationships which were also not considered in earlier classifications.</span>
Answer:
1. Survivors of the pesticide have a gene that protects them from it.
2. Then the survivors pass on the gene to their offspring,
3. Each time the pesticide is sprayed, the insects have a greater chance of survival.
