In general, mothers typically make a larger parental investment in each offspring than males do. What is meant by the term parental investment?
What will be an ideal response?
Parental investment is the energy and time expended constructing and caring for offspring, and is typically measured in fitness.
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An extreme form of allergic reaction can result in severe respiratory distress and plummeting blood pressure. Which of the following is the medical terminology for this extreme reaction?
a. delayed hypersensitivity b. immunodeficiency failure c. anaphylactic shock d. systemic hypersensitivity
Oxytocin affects the:
a. uterine wall b. voluntary muscles throughout the body c. nervous tissue d. target cells in the brain e. target cells in the digestive tract
You are bored at a lunch meeting and surreptitiously place a raisin in your glass of water. The raisin swells to twice its original size. Relative to the water, the raisin must have been:
A) hypertonic. B) osmotic. C) hypotonic. D) isotonic. E) distilled.
Sexual reproduction
a. leads to uniform characteristics in a population. b. results in new combinations of genetic traits. c. produces genetic clones. d. requires less tissue differentiation than asexual reproduction. e. only requires mitosis.