Imagine that you are a red blood cell. Describe your "Trek Through the Heart" from when you enter until you finally exit. (Hint: You enter the right atrium. What next?)
What will be an ideal response?
You enter the right atrium and go into the right ventricle. You then get pumped through the pulmonary arteries into the lungs and become oxygenated. You return to the heart via the pulmonary veins and enter the left atrium and then go to the left ventricle. You are then pumped into the aorta and out to the rest of the body.
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Above zero degrees, the actual number of degrees Celsius for any given temperature is ____ the degrees Fahrenheit.
(a) higher than (b) lower than (c) the same as (d) a or b
If a man expresses an X-linked recessive trait, his ____________________ was either homozygous or heterozygous
for the traitFill in the blank(s) with the appropriate word(s).
It is speculated that one of the first kinds of organic molecules formed on primitive Earth was
A. amino acid. B. ammonia. C. oxygen. D. protein.
The sex of mammals is determined by
A. the autosomes they receive. B. the type of sex chromosomes received. C. the number of recessive chromosomes received. D. None of these answers is or may be a factor.