The blastocyst attaches to the ________ about 6 days after fertilization and begins to digest its way inward
Fill in the blank(s) with correct word
endometrium
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In incomplete dominance,
a. one allele is not dominant to another allele. b. the genotype can be determined by the phenotype. c. the heterozygote is somewhat intermediate to the two homozygotes. d. the intermediate phenotype may be the result of enzyme insufficiency. e. all of these are true.
Which of the following is a function of the lymphatic system that assists the cardiovascular system?
A) production of all blood cells B) RETURNING EXCESS TISSUE FLUID INTO CIRCULATION C) distribution of nutrients.
To move solutes like amino acids into a cell by active transport, the cell
A) must possess appropriate transport proteins in the plasma membrane. B) must have a net gain in energy resulting from active transport. C) maintains a lower concentration of the amino acids in the cytoplasm. D) must move water out of the cytoplasm at the same time.
An individual has been infected with a particular retrovirus. In order for the latent virus DNA to be inherited by subsequent generations stemming from this individual, it must be found
A) in germ line cells. B) in stem cells. C) at a point early in childhood. D) in all cells simultaneously. E) in somatic cells.