When the directions for a fetal pig dissection refer to the left, they are referring to
a. your left.
b. the pig's left.
c. the pig's right.
d. both a and c.
b
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The plasma membranes of root hair cells contain a variety of protein transport channels through which specific ions are transported, even against large concentration gradients, by
A. electron pumps. B. carbohydrate pumps. C. water pumps. D. proton pumps. E. root pumps.
Which gland produces both aldosterone and cortisol?
a. hypothalamus b. adrenal cortex c. anterior pituitary d. thyroid e. pineal
Which of the following is unique to mitosis and not a part of meiosis?
A) Homologous chromosomes behave independently. B) Homologous chromosomes cross over. C) Chromatids are separated during anaphase. D) Homologous chromosomes pair, forming bivalents.
Isotopes are different forms of the same element that
A. differ in their number of protons. B. cannot form covalent bonds. C. differ in their number of neutrons. D. cannot form ions. E. are all produced artificially.