Choose the letter of the best match from the following:A. cognitionB. waggle danceC. navigationD. filial imprintingE. fixed action patternSocial attachments are formed between parents and offspring.
Fill in the blank(s) with the appropriate word(s).
Answer: D
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Which process results in flux of carbon dioxide OUT OF the atmosphere:
What will be an ideal response?
After a meal of greasy French-fried potatoes, which enzymes would you expect to be most active?
a. Salivary and pancreatic amylase, disaccharidases, and lipase b. Lipase, lactase, and maltase c. Pepsin, trypsin, chymotrypsin, and dipeptidases d. Gastric juice, bile, and bicarbonate e. Sucrase, lipase, and bile
The rigid barrier that surrounds most prokaryotes is the
A. cell wall. B. cytoplasm. C. glycocalyx. D. cell membrane. E. flagellum.
Many songbirds breed in North America in the spring and summer and then migrate to Central and South America in the fall
They spend the winter in these warmer areas, where they feed and prepare for the spring migration north and another breeding season. Two hypothetical species of sparrow, A and B, overwinter together in mixed flocks in Costa Rica. In spring, species A goes to the east coast of North America, and species B goes to the west coast. What can you say about the isolating mechanisms of these two species? A) They must have strong postzygotic isolating mechanisms to spend winter in such close proximity. B) They must have strong prezygotic isolating mechanisms to spend winter in such close proximity. C) Their winter habitat has no bearing on their degree of reproductive isolation. D) Reinforcement must be occurring when they winter together.