Although artificial selection may seem slow and unreliable, ____________________ observed that after only a few generations, breeders produced many varieties of pigeons and minks

Fill in the blank(s) with correct word


Charles Darwin
Darwin

Biology & Microbiology

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Four of the five animals listed below are migratory. Select the exception

a. monarch butterflies b. indigo buntings c. white-crowned sparrows d. gray whales e. wood lice

Biology & Microbiology

All of the following events occur during the processing and splicing of pre-mRNA except _____

1.the mRNA is transported from the nucleus to the cytoplasm 2.introns are removed 3.exons are spliced together 4.5' cap is added 5.poly-A tail is added

Biology & Microbiology

Where within the nervous system do cells determine the exact nature of an odor sensation?

a. nasal passages b. nasal epithelium c. olfactory bulb d. thalamus e. cerebral cortex

Biology & Microbiology

The hormone _________, which is released from the posterior pituitary, causes strong contractions of the uterus during labor and birth. 

A. estrogen B. progesterone C. testosterone D. oxytocin

Biology & Microbiology