What are at least 3 adaptations that rocky intertidal organisms have for withstanding wave shock?
What will be an ideal response?
Depending on the species, some organisms, like chitons and limpets, have very low profiles in order to minimize wave contact. These animals can use their foot for adhering to the rock surface, whereas other organisms use tube feet (sea stars), byssal threads (mussels), cementing materials (oysters and barnacles), or a holdfast (algae). Other adaptations include hiding under rocks or between rock crevices, and having strong but flexible bodies (brown algae).
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Distinguish between the structure and function of integral membrane proteins and peripheral
membrane proteins.
What will be an ideal response?Before they enter the blood stream, what
modification occurs to erythrocytes?
a. they are loaded with ant-bacterial compounds b. they lose their nucleus and other organelles c. they absorb oxygen and release carbon dioxide d. they are wrapped in a double plasma membrane e. they absorb nutrients and expel wastes
The site of crossing over is called a _______
Fill in the blank(s) with the appropriate word(s).
Which statement regarding photoreceptors is true?
A) Rods are more sensitive to light than cones. B) Cones are responsible for night vision. C) Rods are found at the greatest density at the fovea, the retina's center of focus. D) Rods contain the visual pigment called photopsin.