Biologists suspect that endosymbiosis gave rise to mitochondria before plastids partly because

The labor movement was blamed for the death of seven police officers during A. the Haymarket Riot B. the Triangle Shirtwaist Factory fire C violence resulting from public anger with business leaders during the Depression D.

What makes up a motor unit? a. one tendon and one muscle fiber b. fast - and slow-twitch muscle fibers c. one motor nerve connected to muscle fibers d. one motor nerve connected to a tendon?

Which stage of the cell cycle involves cell growth and DNA replication? mitosis cytokinesis interphase prophase

3. Which of the following are NOT types of microorganisms? a. Prions b. Viruses c. Bacteria d. Earthworms

The development of the microscope requires an understanding of physics concepts such as light and reflection How else might an understanding of physics impact biology?

Colleen has been advised by her physician to avoid taking high-dose supplements of certain vitamins because they can accumulate to toxic levels in her body. which vitamins?

In 1865, a biologist, St. George Jackson Mivart, constructed an evolutionary tree of existing primate species with many branches based on analysis of spinal columns. But to his dismay, another tree based on limb comparison was quite different.

How does the amount of rainfall affect the amount and types of seeds present on the Galapagos Islands?

If a characteristic is found in bacteria, fungi, pine trees, snakes, and humans, when did it most likely evolve?

Which property allows objects that do not produce their own light to be seen