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Biology 1620 > Biology Final ;) > Flashcards

Biology Final ;) Flashcards

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1
Q

What correctly describes the normal movement for Na+

A

Membrane potential favors Na+ in, and concentration gradient also favors it going in

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2
Q

T/F: The nephrons in the kidney are unable to process urine above 300 mOsm

A

F

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3
Q

Feeding by one insect, a plant is able to build a better defensive mechanism for when later herbivores tries to feed it on it. Because the later species does not affect the earlier one, this relationship is

A

Commensalism

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4
Q

Fruit flies are chosen in a lab. The slowest developing ones are chosen as parents. The time it takes for the fruit flies to develop is long, but their body size is bigger. The time is _______ while the body ________

A

Directional selection;Stabilizing selection

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5
Q

What would happen if the skeletal muscle pump stopped working?

A

The Blood would not pump back to the heart

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6
Q

The cross bridge in the muscle causes what two proteins to come into contact?

A

myosin and actin

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7
Q

Where would you not find a one way valve?

A

Between left and right ventricle

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8
Q

What was the example used in class for character displacement?

A

Galapagos Finches

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9
Q

The one whose activity is altered in order to compensate to bring parameter back into its normal range

A

Effector

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10
Q

The graph of natural selection does not show which of the traits that’s required for natural selection?

A

Underlying genetic variability

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11
Q

A mouse that can’t produce leptin will be _______ than a mouse that can

A

Eat more weigh more

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12
Q

Semelparity means

A

Reproduce only once

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13
Q

Correct order of what happens in the kidney or whatever

A

Filtration, reabsorption, secretion, excretion

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14
Q

A long colon in a koala will enable it to

A

Allow for more absorption of water

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15
Q

The two functions of the gills

A

Respiration and osmoregulation

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16
Q

Which hormone stimulates follicles?

A

FSH

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17
Q

Evidence that crocodiles are paraphyletic is that they’re more related to

A

Birds

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18
Q

The organ of corti

A

Is for auditory

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19
Q

Osmoconformers live in

A

Sea water

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20
Q

What is responsible for pushing filtration from glomerulus and into the Bowman’s capsule?

A

I put blood pressure

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21
Q

____ receptors keep sending signal to CNS as long as stimulus is present

A

Tonic

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22
Q

Which period lasted 250 million - 65 million

A

Mesozoic

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23
Q

Which one is involved in IPSP

A

Potassium

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24
Q

What is an advantage of electrical synapse?

A

It’s fast

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25
Q

What is the semicircular canal responsible for?

A

Equilibrium

26
Q

Know everything the antibodies do

A

They find and destroy viruses by creating antigen

27
Q

T/F AIDS is deadly because it can specifically kill Helper T cells

A

T

28
Q

T/F In mammal reproduction, it’s chromosomal and males have the heterogenetic (XY chromosome)

A

T

29
Q

Oviparity is the development of inside an egg it’s also called

A

Lecithotrophy

30
Q

T/F only insects exhibit temperature dependent sex determination

A

F

31
Q

Which is not a characteristic of Lucy?

A

Fully bipedal

32
Q

Know the definition of sympatric speciation

A

Some interruptions of gene flow occur without geographic separation.

33
Q

Know the definition of homology

A

the state of having the same or similar relation, relative position, or structure.

34
Q

Which percentage closely represents the amount of species that have been extinct

A

100

35
Q

Why do black headed gulls move their white egg shells

A

To decrease crows eating the eggs

36
Q

Which gene affects levels of aggression in humans

A

Monoamide oxidase gene

37
Q

T/F: The two things needed for ions to move across the gradient is membrane (charge) potential and concentration gradient

A

T

38
Q

Which cells release antibodies?

A

Plasma

39
Q

A well-trained athlete has a resting heart rate of only 60 beats/minutes, a stroke volume of 100 mL and respiratory rate of 20 breaths per minute. What is this person’s cardiac output?

A

6000 mL

40
Q

An osmoconformer must live in which of the following environments?

A

Sea water

41
Q

T/F : To mount an effective primary acquired immune response after the first exposure to an antigen may take as long as 1-2 weeks.

A

T

42
Q

T/F : Constriction of the precapillary sphincters would cause the majority of blood to bypass the capillaries and enter the metarteriole.

A

True

43
Q

Some nutrients are considered “essential” in the diets of certain animals because

A

They cannot be manufactured by the organism

44
Q

What appears to be the biggest cause of the Permo-Triassic mass extinction?

A

Vulcanism

45
Q

The closest relative(s) of the tuna is (are):

A

It’s a tie between the salamander, turtle, and leopard.

46
Q

Moon rocks, chondritic meteors, and lead-isotope ratios all indicate that the age of our solar system is about:

A

4.6 billion years

47
Q

Which organism is an example of human-caused extinction of a widespread abundant species?

A

Passenger pigeon

48
Q

When it hears the squeaking of a patio door, a cat rushes to the spot where it usually receives food. This is most likely an example of:

A

Classical conditioning

49
Q

Genetic drift is best described as

A

Changes in allele frequencies due to sampling error

50
Q

One feature that distinguishes imprinting from other forms of learning is that

A

It occurs during a critical period

51
Q

T/F: Melatonin is the hormone responsible for the seasonal timing of singing in the male zebra finch

A

True

52
Q

The loss of responsiveness to a repetitive stimulus that is neither beneficial not harmful is called

A

Habituation

53
Q

A single allelic substitution at the vasopressin-receptor gene in meadow voles affected which behavior?

A

Pair bonding

54
Q

T/F: In theory, heritability can only range from zero to one

A

True

55
Q

Trial-and-error learning is also

A

Operant conditioning

56
Q

A gene in Hardy-Weinberg equilibrium has only two alleles, A and a, and one is four times more common than the other. What is the total expected percentage of the population that will be heterozygotes?

A

32

57
Q

Know the definition of intersexual selection

A

Ex: female choice

58
Q

Know the definition of intersexual selection

A

Ex: female choice

59
Q

When did we hybridize with neanderthals

A

Hybridizations occurred as recently as 50-60 thousand

60
Q

When did we migrate to the America

A

20 thousand years ago

Biology 1620 (8 decks)

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