When species diversity is calculated, what is being measured?
A. Species number.
B. The evapotranspiration rate.
C. Both species number and relative abundance.
D. The resistance of a community to disturbance.
E. The process of inhibition.
A. Species number.
B. The evapotranspiration rate.
C. Both species number and relative abundance.
D. The resistance of a community to disturbance.
E. The process of inhibition.
You might also like to view...
The Pax6 gene
A. is a master control gene for limb development. B. codes for a protein that controls the expression genes related to eye development. C. has no known homologs. D. is a homolog to the eyeless gene in rodents.
The function of oxytocin is to:
a. stimulate uterine contractions b. stimulate the cells of the mammary glands to produce milk c. regulate the permeability of the collecting tubules of the kidney d. stimulate ovulation e. stimulate the growth of the ovarian follicles
Which of the following reptilian features enabled them to adapt to a terrestrial environment?
A. Two pairs of paired limbs, a septum that divides the ventricle, and well developed kidneys B. A dry skin, ectothermy and external fertilization C. Live birth, efficient excretion and two pairs of limbs D. Skin that allows for respiration, a septum that divides the ventricle and an amniotic egg E. Efficient respiration, ectothermy and external fertilization
Research indicates that ________ respond(s) to ________ signals that inform a cell about its position relative to other cells in the embryo
A) nervous tissue; hormonal B) master control genes; chemical C) organs; electrical D) organelles; chemical