BIOL 1070 Lecture Notes - Lecture 9: Arctic Ground Squirrel, Acclimatization, Positive Feedback
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QUESTION 1
Which of these choices is an example of acclimatization?
Plants growing in the shade grow larger leaves compared to the leaves growing in direct | ||
A.Pigweed plants ( Amaranthus retroflexus ) growing in North Carolina are more tolerant to heat than plants growing in Canada. | ||
A.The quadrate bone of snakes is movable rather than rigidl y attached, as seen in other vertebrates. | ||
A.Desert rodents produce more concentrated urine because of their longer loop of Henle as compared to the loop of Henle found in other rodents living in less arid conditions. |
10 points
QUESTION 2
Which of these choices is an example of connective tissue ?
cardiac muscle | ||
neurons | ||
blood | ||
glial cells |
10 points
QUESTION 3
Which of these choices best describes homeostasis ?
A.maintenance of a relatively constant internal environment | ||
A.all vertebrates have a similar body plan | ||
A.exchange of materials with the environment a cell is found in | ||
A.relationship of the structure and function in animals |
10 points
QUESTION 4
You are looking at two cells under a microscope. Both have the same shape, but cell A is smaller than cell B. Which of these statements correctly describes cell B?
A.The larger cell has less surface area than the smaller cell. | ||
A.The larger cell has a smaller sur face-to- | ||
A.The larger cell has the same surface-to-volume area as the smaller cell. | ||
A.The larger cell has more surface area than the smaller cell. |
10 points
QUESTION 5
Which of these statements is true about ectotherms?
A.Ectothermic animals tend to be found in arctic regions. | ||
A.E ctotherms tend to consume more calories than endotherms of similar size. | ||
A.Ectotherms tend to have more insulating structures than endotherms. | ||
A.Ectotherms use more energy for |
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 |