Answer:
1) selective permeability of the cell membrane refers to It's ability to differentiate between different types of molecules, only allowing some molecules through while blocking others. Some of this selective property stems from the intrinsic diffusion rates for different molecules across a membrane.
Answer:
24 g of salt: 2 L of water
or
12 g of salt: 1 L of water
<em>This is an example of;</em>
B. Photoperiodism
<u>Photoperiodism is the response of an organism to seasonal changes in day length.
</u>
<u>They are classified under three groups according to the photoperiods;</u>
<u>1. Short-day plants </u>
<u>2. Long-day plants </u>
<u>3. Day-neutral plants.</u>
I think that since it lives on the ocean floor, at the deepest of the ocean. So anyway, the fin on the Eurypterids is still necessary but not that much, since they live on the ocean floor. Their movements mostly on the ocean floor. So fin would not help them "stick" to the floor. Also there are still gravity acts on the Eurypterids and the feet would help them move faster. Hope this helps.
