I need help with my Biology Homework.?

Posted on 2015-10-29 07:32:00 in Biology by KAYLE

3. A mature salmon swimming upstream to lay eggs is under quite a bit of stress. Its cells are dealing with a _______________ environment.
4. A small salmon fry is a valiant little thing. Going from fresh water to salt water is something the fish's body needs to adapt too. The new environment is __________________.
4. The cup with the salt water is _______ compared to the potato (2 point)
a. Isotonic
b. Hypertonic
c. Hypotonic

5. Based on your observations and what you have learned about osmosis and how/why the water moves across a membrane answer the following questions: (4 points)

a. I forgot to water my plant and it was all wilted. I watered the soil that the plant was planted in and within an hour it looked all healthy again. Consider that the roots of the plant are made up of cells with a membrane. Explain why the plant went from looking all wilted to looking all healthy (not wilted) after I watered it.
b. Some slug and snail baits are high in salt content. When used according to the package directions they result in the death of slugs that come into contact with the bait. Based on what you learned in this experiment, explain how the slugs and snails die.

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