The structure of the cartilaginous and bony fishes that detects vibrations in the water is the

(a) anal fin.
(b) operculum.
(c) nostrils.
(d) lateral line.


(d) lateral line.

Biology & Microbiology

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Which type of speciation mechanism have the Honeycreepers of Hawaii undergone?

a. Gene flow b. Sexual selection c. Stabilizing selection d. Sympatric e. Allopatric

Biology & Microbiology

Describe the significance and relationship of the genus and species taxa. If there were not humans on earth to classify

organisms, would species still exist? What will be an ideal response?

Biology & Microbiology

The ____________ pressure in the capillaries drives the filtration of water and small molecules from the blood into the ____________ space of the tissues.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

No two people are genetically identical, except for identical twins. The chief cause of genetic variation among human individuals is

A) new mutations that occurred in the preceding generation. B) the reshuffling of alleles in sexual reproduction. C) genetic drift due to the small size of the population. D) geographic variation within the population. E) environmental effects.

Biology & Microbiology