Deep-sea bivalves differ from their surface relatives by using their siphons to:
a. detect the presence of nearby prey items.
b. detect the presence of nearby predators.
c. vacuum up food.
d. both a and b
C
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Which kingdom in the Domain Eukarya contains multicellular photosynthesizers?
A) Plantae B) Bacteria C) Fungi D) Archaea E) Animalia
Several human disorders are the result of abnormalities in chromosome number. The most common are trisomies of chromosome numbers________ ,________ , or _________ , or abnormalities in the number of sex chromosomes.
Fill in the blank(s) with the appropriate word(s).
Anton has diabetes mellitus and has to take insulin. One day he forgot to inject himself as his doctor directed. Predict the most likely consequence according to this chapter
A) greater protein synthesis B) rise in blood glucose levels C) more fat storage D) increase in glycogen storage
A number of mechanisms operate to maintain genetic diversity in a population. Why is such diversity favored?
A) Genetic diversity may better adapt a population to inevitable changes in the environment. B) Genetic diversity helps populations avoid diploidy. C) Homozygosity is an evolutionary advantage. D) Diversity leads to inbreeding advantages. E) Greater genetic diversity increases the chances of haploidy.