This animal is:
1.Acoelomate
2.Coelomate
3.Pseudocoelomate
4.Radial
2
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If you were to extract all of the proteins from a leaf and measure the composition of rubisco, you would find that it
comprises about ____% of the total leaf protein.
a. 10 b. 25 c. 50 d. 75 e. 90
The development of normal maternal behavior in female mice depends on interactions between the female and her young and the presence of a gene called fosB. In mice with functional fosB genes, a sequence of events occurs after babies are born.
Arrange the events in their normal sequence following the birth of baby mice for a wildtype female. ___ Female crouches over young and retrieves them if they leave the nest. ___ Auditory, olfactory, and tactile signals about the young are sent to the hypothalamus. ___ Neural circuitry within the hypothalamus is modified, facilitating maternal behavior. ___ Female inspects newborns. ___ The gene fosB is activated, producing protein that activates other genes.
When the body has excess sodium, which of the following does NOT happen?
a. more sodium is excreted b. more sodium is reabsorbed c. edema (swelling) occurs d. blood pressure rises e. aldosterone secretion is inhibited
The dialyzing solution used during kidney dialysis functions much like a fluid associated with a nephron. What is the fluid?
A) the interstitial fluid B) the filtrate in the proximal tubule C) the filtrate in the loop of Henle D) the filtrate in the distal tubule