The term "biotech barnyards" refers to ____
a. the production of human therapeutic proteins by farm animals
b. the development of new species of farm animals
c. the increased production of milk, egg, wool, etc.
d. modern methods of raising more animals on less feed
e. the creation of transgenic animals that can produce several products
ANSWER: a
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Males find females via airborne pheromones when they are close to the web. Their front legs
have many __________ to detect these pheromones
a. chemoreceptors b. rods and cones c. interneurons d. thermosensors
Conservation biologists conduct population viability analyses to determine ____
a. whether an environment is too badly degraded to support a species b. how large a population must be to ensure its long-term survival c. likely source populations d. likely sink populations e. the annual reproduction rate of a population
Human are only one species of many different primates that prefer to walk upright on two legs
Indicate whether the statement is true or false
The vaginal ring
A) kills sperm. B) decreases testosterone production. C) blocks sperm from reaching the egg. D) prevents STDs. E) releases hormones that prevent ovulation.