<span>Steroids can cross the cell membrane because they are lipids and the membrane is lipid</span>
When a population of any species decreases, it leads to a decrease in populations of species that feed on them, as there is less food available and they may die of starvation or competing against each other for food. Crabs are eaten by big marine animals, such as otters and terrapins. Algae and snails does not feed on crabs. Therefore, the correct answer are the options B. Otter and D. Terrapin.
A.) By measuring the redshift or blueshift , which is actually nothing but spectral lines on electronmagnetic spectrum of that
