A red blood cell has lost its nucleus to make more space for carrying oxygen. This is an example of ________
A) the relationship between structure and function B) a cell whose DNA is circular
C) a cell that is not living D) a prokaryotic cell
Answer: A
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Why are mitochondria so prevalent in skeletal muscle?
A) They give the muscle enough elasticity to contract. B) They are needed to repair damaged tissue that accumulates during exercise. C) They are needed to provide energy for muscle contraction. D) Bones and muscles require a great deal of energy to prevent them from separating. E) The flow of blood is greatest in skeletal muscle.
What is the function of tendrils?
a. protect the plant from grazing herbivores b. allow the plant to obtain additional nutrients c. allow the plant to climb other structures d. store starches for use during winter
Which of the following are primarily cellular
sites for the recapture of energy from organic compounds?
a. Golgi bodies b. mitochondria c. lysosomes d. ribosomes e. endoplasmic reticulum
The least oxygenated blood is indicated by the letter ____
a. A b. B c. C d. D e. E