Which of the following is an example of diffusion?
A. movement of individual oxygen molecules
from the air to the bloodstream
B. movement of large numbers of air
molecules into and out of the lungs
C. transport of oxygen throughout the body
via the circulatory system
D. binding of oxygen to hemoglobin within the
red blood cells
E. movement of oxygen molecules from the
lungs to the bloodstream AND movement of
large numbers of air molecules into and out of
the lungs
A
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What is the name of the of the newest technology that is likely to have a major impact on future evolution of not only humans, but also other organisms such as mice (so they cannot carry Lyme’s disease) and mosquitos (so they cannot carry Zika or malaria)?
A. IVF B. CRISPR C. TOASTR
Smooth muscles are found where and are what?
What will be an ideal response?
The process of meiosis results in ____
A. the production of four identical cells B. no change in chromosome number from parental cells C. a doubling of the chromosome number D. a reduction in chromosome number E. two diploid cells
When is a cell committed to undergoing mitosis?
a. once it transitions from S to G2 b. once it transitions from G1 to S c. once it transitions from G1 to G0 d. once it transitions from G2 to prophase