a large population of an animal live on a beach with high levels of sunlight, and only a small shaded area. During the day, the temperatures reach almost 40 degrees Celsius, which is the optimal temperatures for protein denaturation in these species. provide a feature in the animal that would make it successful in this environment.
a large population of an animal live on a beach with high levels of sunlight, and only a small shaded area. During the day, the temperatures reach almost 40 degrees Celsius, which is the optimal temperatures for protein denaturation in these species. provide a feature in the animal that would make it successful in this environment.
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Related questions
The Cambrian explosion is a prime example of ________________.
mass extinction | ||
evolutionary stasis | ||
a large meteor impact | ||
adaptive radiation |
1 points
QUESTION 2
Most animals are viviparous.
True
False
1 points
QUESTION 3
The first phylum with ganglia in their nervous system are the ________________________.
Mollusca | ||
Nematoda | ||
Bivalvia | ||
Platyhelminthes |
1 points
QUESTION 4
The last common ancestor of all animals was probably a _____________________.
a unicellular worm | ||
multicellular algae | ||
flagellated protist | ||
multicellular fungus |
1 points
QUESTION 5
You are given an unknown organism to identify. It is unicellular and heterotrophic. It is motile by use of many short extensions of the cytoplasm. It has well-developed organelles and two nuclei, one large, one small. The organism is most likely to be a ______________.
foraminifera | ||
radiolarian | ||
ciliate | ||
flagellate |
1 points
QUESTION 6
Which of the following organisms would you expect to have the largest surface-area-to-volume ratio? Assume that all of the following are the same total length.
A mollusc | ||
A nematode | ||
A platyhelminth | ||
Not enough information to determine. |
1 points
QUESTION 7
If the animal is a hermaphrodite, it is said to be _______________.
dioecious | ||
eutelic | ||
monoecious | ||
trioecious |
1 points
QUESTION 8
A terrestrial animal species is discovered with the following larval characteristics: exoskeleton, system of tubes for gas exchange and segmentation. A knowledgeable zoologist should predict that the adults of this species would also feature ____________.
eight legs | ||
two pairs of antennae | ||
a sessile lifecycle | ||
an open circulatory system |
1 points
QUESTION 9
The Phylum Echinodermata exhibits metamerism.
True
False
1 points
QUESTION 10
The existence of evolutionary trends, such as increasing body sizes among horse species, is evidence that _____.
a larger volume-to-surface area ratio is adaptive in many mammals | ||
evolution generally progresses toward some goal | ||
evolution tends toward increased complexity or increased size | ||
in particular environments, similar adaptations can be beneficial to more than one species |
1 points
QUESTION 11
Suppose you are a researcher fro a pest-control company and you develop a chemical that inhibits the develpment of an embryonic mosquito's endodermal cells. Which of the following would cause the pesticide to work?
The mosquito would develop a weak exoskeleton, making it easy prey. | ||
The mosquito's gut would not function properly and it would starve. | ||
The mosquito would not have a properly functioning muscular system. | ||
Nothing would happen and your experiment would be a failure. |
1 points
QUESTION 12
Holometabolis refers to complete metamorphosis.
True
False
1 points
QUESTION 13
Which of these conditions are always true of populations evolving due to natural selection?
Condition 1: The population must vary in traits that are heritable.
Condition 2: Some heritable traits must increase reproductive success.
Condition 3: Individuals pass on most traits that they acquire during their lifetime.
Condition 1 only | ||
Condition 2 only | ||
Conditions 1 and 2 | ||
Conditions 2 and 3 |
1 points
QUESTION 14
Scientific theories _____. 22.3
are nearly the same things as hypotheses | ||
are supported by, and make sense of, many observations | ||
cannot be tested because the described events occurred only once | ||
are predictions of future events |
1 points
QUESTION 15
The evolution of animal species and their diversity is a result of the evolution of new and different ways to _______________.
reproduce | ||
arrange their cells into tissues | ||
become symmetrical | ||
form an embyro and establish a basic body plan |
QUESTION 3
Which of the following would NOT be a good method for sortingout the evolutionary relationships between a parrot, gorilla,hippopotamus, starfish, and catfish?
comparing the skeletal anatomy | ||
examining the habitat in which these organisms live | ||
looking at embryos for common developmental patterns | ||
comparing the nucleotide sequence divergence of selectedgenes | ||
all of the above would provide useful information |
10 points
QUESTION 4
Which of these habitats should have the highest number ofendemic species (found there and nowhere else).
grasslands of the central United States | ||
Hawaiian islands | ||
Amazonian rainforest basin | ||
Mississippi river |
10 points
QUESTION 5
Darwin's concept of evolution "the theory of descent withmodification through variation and natural selection" can bedemonstrated by which of the following examples?
A giraffe stretches his neck to reach higher branches. Theexercise of stretching up strengthens the muscles in the neck andlegs. This ability to stretch is also seen in the giraffe'soffspring. | ||
A monkey accidently drops her fruit in the salty water of a bay,she recovers the fruit and eats it. She discovers that the fruit iscleaner and tastes better after it has been in the salty water. Shecontinues to wash fruit in the bay before eating. Her offspring seewhat she has done and also wash their fruit in the salty water.Soon the whole population is washing their fruit | ||
Several turtles hatch from a clutch of eggs buried in the sandon a beach. One of the turtles is the color of the sand, the othersare darker in color. The turtles all scurry to the water, but oneby one the dark turtles are eaten by birds, only the sand coloredturtle survives. When it enters the water the sand color changes toa darker brown. The turtle grows, mates and has offspring that arealso sand colored when they are born | ||
A female alligator gives birth to a male alligator that has theability to change color to a bright white when it is in cold water.The baby male alligator is quickly spotted by a large bird of preyand eaten |
10 points
QUESTION 6
During the Beagle journey, Darwin visited islands,allowing him to compare island species with continental species. Interms of framing his theory of evolution, why was thissignificant?
Because the island species had both similarities to theircontinental ancestors and unique adaptations to their islandenvironments | ||
Because the island species no longer shared traits with theircontinental ancestors | ||
Because the species he saw on the islands had not changed fromtheir ancestral continental form | ||
Because the island species had very low reproductive andsurvival rates as compared with their continental ancestors |