Select the correct answer. What is the function of the pneumatocyst in kelp?
A. They float the blades and protect them from grazing species.
B.
They float the blades for better exposure to sunlight.
C. They provide storage for excess nutrients,
D. They contain gas that is released in case the species is attacked.

Which organelles are labeled d, and what is one feature that distinguishes them from the other labeled organelles chloroplasts the only organelles that produce sugars from sunlight mosomes, only found in animal and bacterial cells centricles only found in animal cells mitochondra, the only energo-generating structures found in cells

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

Which characteristics must an object possess in order to be considered alive?