Human viruses can enter human cells by fusion with the cell membrane or by:
a. endocytosis.
b. diffusion into the cell.
c. passage through specific protein channels
d. attaching onto protein signals entering the cell.
e. coating themselves with lipids that cloak their entrance into the cell.
a
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After replication, in eukaryotic cells, both the original and its replicated copy chromosome are each called a
A. nucleosome. B. sister chromatid. C. centromere. D. chromatin. E. chromosome.
Four of the five choices below are components
of the human lymphatic system. Select the EXCEPTION.
a. spleen b. pancreas c. tonsils d. lymph nodes e. thymus
Seasonally flooded, forested wetlands along river systems are referred to as bottomlands or ________ woodlands
Fill in the blank(s) with correct word
The common house mouse species, Mus musculus, has the following classification: Musculus, Mus , Muridae, Rodentia, Mammalia, Chordata, Animalia, Eukarya. What part of the name is the family?
A. Rodentia B. Muridae C. Animalia D. Chordata