Question

Just Answer please for final !

B) the same surface area relative to volume A) a larger surface area relative to volume. a much smaller surface area relative to volume. C) a slightly smaller surface area relative to volumeD 56. Animals that feed on both plant and animal tissues are referred to as D) detritivores. C) omnivores B) camivores. A) herbivores. 57. Water flows over gills in the opposite direction of blood flow in a process known as D) countercurrent exchange. C) diffusion. B) respiration. A) inhalation. 58. The regulation of body temperature exclusively from the external environment is referred to as C) homeothermy. D) heterothermy. E) exothermy B) ectothermy A) endothermy. 59. An advantage of homeothermy is A) requiring a low caloric intake B) maximizing allocation of energy to growth. C) remaining active in a wide range of external temperatures. D) tolerating wide fluctuations in body temperature. 60. As the surface area of a body increases, its volume increases at the same rate. A) True B) False 61. A population that is increasing in size has an intrinsic rate of population growth(r) that is A) c0 D)> 1 B)=0 62. When the conditions are favorable for a population at low density, such as when a species colonizes a new environment, population growth is typically A) exponential. B) logistic. D) dynamic 63. Which of the following equations reflects the change in population size for the exponential model of population growth? D)dN/dt = rN 64. The leading cause of current species extinctions is A) global warming. D) diseases. B) habitat destruction.C) hunting. 65. A small population is at a greater risk of extinction because A) there is less competition within the population. B) of an increase in the genetic diversity within the population. C) most of the individuals would likely die in a stochastic event (e.g. wildfire). D) females can no longer reproduce. 66. An equation in which the derivative appears on the left-hand side is referred to as a D) derivative C) differential equation. B) tangential equation. A) calculation. 67. Immigration and emigration occur within a closed population A) True B) False

Answer 1

Ans 55. a) a larger surface area relative to volume

Ans 56. c) omnivores.

are the animals which eat both plant and animal food.

Ans 57. d) countercurrent exchange.

Countercurrent oxygen exchange means the blood flows through the gills in the opposite direction as the water flowing over the gills.

Ans 58. b) ectothermy

is the ability of an animal whose body temperature varies with the temperature of its surroundings.

Ans 59. remaining active in a wide range of external temperatures

Maintaining a relatively constant body temperature independent of external temperature is referred to as homeothermy.

Ans 60. false.