Which feature do all adult echinoderms have?

moveable spine

muscular foot

mantle

endoskeleton

For a population containing 70 females and 30 males, what is the effective population size, ne

Which statement correctly describes what proteins, lipids, and glycogen have in common? a. They are all used as primary energy sources during exercise. b. They are each stored in the liver to be used as a ready energy reserve. c.

What does glycolysis start and end with?

Which property of connective tissue is fundamental to its function of binding tissues and organs? cells that contain actin and myosin mostly made of protein fibers regenerative properties tightly packed cells

What is the nucleus and what important information is contained within it?

Genetic variation is important for evolution because

What is the term for a structure that has no use in an organism? A) homologous B) Index C) Vestigial D) Sedimentary

Which is the greatest benefit of sexual reproduction? Select one: a. capable of reproducing by meiosis b. ability to reproduce without a mate c. ability to produce genetically different offspring d.

When sea ice forms in the ocean, the salinity of the surrounding ocean water decreases increases remains the same.

Why do you think the processes of photosynthesis and respiration are interrelated? because in plants, both photosynthesis and respiration are continuous processes that take place through day and night because the oxygen produced in photosynthesis is