Phytoplankton thrive in the limnetic zone of lakes and ponds
Indicate whether the statement is true or false
TRUE
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The hormone secreted by the posterior pituitary that causes the reabsorption of more water by the kidney is
A. antidiuretic hormone (ADH). B. follicle-stimulating hormone (FSH). C. growth hormone (GH). D. luteinizing hormone (LH). E. adrenocorticotropic hormone (ACTH).
The primary root of a seedling grows down
a. to avoid light. b. in response to gravity. c. because the cells on the upper surface of the root elongate more rapidly than those on the lower surface of the root. d. in response to different concentrations of auxin. e. because of all of these except "to avoid light."
Hominins evolved when the climate was ____.
A. wet and hotter B. wet and cooler C. dry and hotter D. dry and cooler E. similar to today
With the exception of identical twins, siblings who have the same two biological parents are likely to look similar, but not identical, to each other because they have
A) identical chromosomes but different genes. B) identical genes but different chromosomes. C) the same combination of traits but different genes. D) a similar but not identical combination of genes.