Which describes speciation?

A. the grouping of a species

B. the formation of a new species

C. the extinction of an existing species

A man jumps off of a paddle board into a lake as shown below. If the man's feet pushing the paddle board is the action force, then which of the following is the reaction force? A. the paddle board pushing back on the man's feet B.

Which of the following describes a difference between mitosis and meiosis?

What's is characteristic

Production of electricity by nuclear power releases a greater amount of greenhouse gases than production of electricity using coal. True False

Vaccines are used to prevent illness. Most vaccines are given as injections or shots. Before a doctor gives a patient a shot, the doctor wipes the skin with rubbing alcohol. What is the main reason for wiping off the skin?

Cyanobacteria have been engineered to produce isobutanol directly. What advantage does this have over other alternative biofuels? a. It is an inherently renewable fuel source. b. Multiple processing steps can be avoided. c.

Describe the appearance of dense connective tissue

What us one role that lipids play in the boy

Which meninx surrounding the central nervous system contains blood vessels that nourish the neural tissue?

Protists use all of the following methods to obtain energy except A. photosynthesis / B. ingesting food / C. converting atmospheric nitrogen / D. absorbing food.