Southern sea otters are keystone species that are important to the

ecosystems in which they live.

a. open ocean

b. kelp forest

C. deciduous forest

O d. coniferous forest

e. seagrass bed

Which statement correctly describes glucose (C6H12O6) ? It is made of matter and contains twenty-four molecules. It is an element made of three types of atoms. It is an atom made up of carbon, hydrogen, and oxygen.

Which of the following is true of reproduction in a pine tree? A. The zygote grows into an embryo. B. The pollen tube contains two diploid sperm. C. Both sperm fertilize the egg. D. The cones are diploid.

Which category contains the majority of stars?

Why do you think silver and gold are two of the most common metals used in making jewelry? (Be sure to describe their physical properties in your answer)

Which pancreatic cells release insulin and glucagon?

Why is the hormone oxytocin important?

Bacteria and fungi are important decomposers. however, which decomposition function is almost entirely the work of fungi?

What is the second step of the scientific method

A structure on a cell that binds with something, like a hormone is called a (n) A. catalyst B. protein C. receptor D. axon

Which statement is true? A. Lipids are a type of fat. B. Fats are a type of lipid. C. Fats and lipids are separate and unrelated substances. D. All lipids are fats, and all fats are lipids.