Select all that apply. a) Medications containing vitamin A are sometimes used to treat acne, but can cause serious side effects. b) If a meal contains 1200 mcg beta-carotene, it has 100 mcg RAE. Night blindness and increased infections are early signs of vitamin A deficiency. c) Excessive intake of orange fruits and vegetables is likely to lead to vitamin A toxicity. d) An adult female receiving 700 IU of vitamin A daily would meet her needs for that day.

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.  

that is wrong, its not thymus.

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.