How is the male sex determined in mammalian species?
a. the inheritance of one Z and one W chromosome
b. the inheritance of two Y chromosomes
c. the inheritance of one X and one Y chromosome
d. the inheritance of two X chromosomes
c. the inheritance of one X and one Y chromosome
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Describe the feeding behavior of humpback whales. Why do they employ this type of food capture method?
What will be an ideal response?
The effect of resource availability on population size ultimately determines ____
a. the carrying capacity of the environment b. exponential growth c. the doubling time of a population d. the population's biotic potential e. the loss of species in an ecosystem
The sporophyte generation
a. is essential for a flowering plant to complete its life cycle. b. is the dominant generation in the lower plants. c. is microscopic in the flowering plants. d. produces sperm and egg cells. e. is the only generation in higher plants.
Through which of the following do proteins travel from one cisterna to the next in the golgi apparatus?
A.) transporters in the cisternal membranes B.) pores in the cisternal membranes C.) transport vesicles that bud from one cisterna and fuse with the next D.) membranes via osmosis E.) bridges that link the cisternae