The main hormone that acts on the kidneys to regulate sodium ion concentration of the extracellullar fluid (ecf) is:

What prevented many geologists from accepting Wegener's theory of continental drift? A. Scientists believed the earth moved around much more quickly than the theory predicted. B. the seafloor was the same everywhere so the continents couldn't drift.

A wave with a period of ⅓ second has a frequency of

Which type of cell division results in daughter cells with half the number of chromosomes as the parent cell? meiosis binary fission apoptosis mitosis

Define transcription. list the main steps involved in the process.

What happens if a cell doesn't go through mitosis with correct timing?

Pairing of homologous chromosomes in prophase of meiosis I appears to be critical for proper alignment, crossing over, and subsequent separation. This pairing is facilitated by the sharing of sequence homology between homologous chromosomes.

What does "leeward" mean?

Which lipid acts as a chemical messenger? a. adipose tissue b. cholesterol c. testosterone d. beeswax

The degradation of alanine yields pyruvate and the degradation of leucine yields acetyl coa. can the degradation of each of these amino acids directly replenish the pool of tca intermediates? explain why or why not.

How does the Arthropod growth curve differ from the growth curve of most other animals?