Golden Rice was originally developed to provide a source of ________ to people for whom rice is the principal food
Fill in the blank(s) with correct word
vitamin A
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Which human extraembryonic membrane forms the blood vessels of the umbilical cord?
a. amnion b. yolk sac c. chorion d. allantois e. protein coat
Type II survivorship curves ____
a. are characteristic of humans and elephants b. indicate a fairly constant rate of death at all ages c. indicate a high mortality rate in the very young d. are characteristic of species in which most individuals live a relatively long life and die of old age e. are typical of species with high biotic potentials
Assuming that aerobic metabolism starts with glucose as its fuel, approximately _____% of the energy of the starting molecules will be captured in a useful form. The remaining energy will be converted to _____ and will be either lost or used to _____
A. 42; heat; warm the animal B. 42; electricity; keep the circulatory system functioning C. 58; heat; warm the animal D. 75; light; carry out photosynthesis E. 42; light; carry out photosynthesis
What are possible benefits to an animal of defending a territory? Check all that apply.
_____ access to mates _____ optimal nesting/breeding sites _____ decreased foraging time _____ increased intraspecific competition _____ increased food resources