In this energy pyramid, about

of the available energy is transferred to each level

A)

10%

B)

25%

C)

30%

D)

50%

How might variations in the poison dart frogs' colors and markings affect the probability that an individual frog will survive in its environment? Construct an explanation in support of your answer.

Many times, the molecules join to form long chains with what kind of backbone?

The release of fsh and lh from gonadotropes in the adenohypophysis is separately controlled by the same hypothalamic releasing hormone, gnrh. how is it possible to organize their secretion during the menstrual cycle?

A microspore develops into a (n) A. seed B. sporophyte C. male gametophyte D. female gametophyte. E. ovule.

What prevents antibiotics from being effective against viruses? A. Viruses have a high rate of mutation. B. Viruses have no RNA. C. Viruses have no metabolism. D. Viruses have a protein shell that protects them.

Three different core areas designed to protect an endangered beetle each have a buffer zone associated with them. in buffer zone a, the birth rate of the beetle is 0.04, and its death rate is 0.08. in buffer zone b, the birth rate of the beetle is 0.

In a, are (Y) and are (y). A=4 B=1 C=2 D=3

wall of the gut tube has layer of smooth muscle that run both circulary and longitudinally contraction of these muscles produces

Many toxins and poisons block certain enzymes in the mitochondria. For example, many fruits, including apricots, apples, plums, peaches, and cherries, contain seeds and pits that can cause the formation and release of the poison cyanide if they are

In a classroom system, the students produce an output of information on tests and homework. This information becomes an input for the grading part of the system. Which statement about the output of the students is true? A.