Quiz 1 Flashcards

1
Q

How do copepods avoid predation in turbulent waters

A

Through rapid swimming and detection of water movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

An instance where environmental factors influence reproductive success in marine animals?

A

Timing of gamete release with lunar cycles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

When an organism is exposed to toxic metals, what is the typical biochemical response observed within hours?

A

Increase in metallothionein concentration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What factor can shift the geographic range of marine species as sea-surface temperatures increase due to climate change

A

High-temperature stress

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What term describes the difference between energy intake and the cost of metabolism in an animal?

A

Scope of growth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the impact of climate change on the distribution of intertidal species as seen in recent decades

A

Increase in southern species and decline in northern species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the challenge for marine species living in polar waters

A

Freezing conditions and the formation of ice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why is acclimation important for mussels collected in different seasons when transferred to new temperatures

A

It allows physiological adjustment to new temperature ranges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How do marine viruses affect plankton communities

A

By infecting lysing phytoplankton, recycling nutrients

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a common consequence of harmful algal blooms caused by dinoflagellates

A

Depletion of oxygen and release of toxins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the most common nonsexual reproduction in multicellular marine organisms like corals?

A

Fragmentation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which strategy increases the likelihood of sperm and egg encounter in free-spawning species

A

High population density

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What cellular adaptation allows marine organisms to survive in near-freezing waters?

A

Production of antifreeze-glycoproteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What reproductive strategy is used by organisms like Atlantic salmon to maximize offspring survival

A

Semalparity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which of the following is true about diatoms

A

They have silica-based cell walls and are a major group of phytoplankton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What term describes the point at which a marine animal’s metabolic rate is just sufficient to maintain its basic functions without growth or reproduction?

A

Maintenance metabolism

17
Q

What factor often triggers mass spawning events in marine environments

A

Lunar or tidal cycles

18
Q

What factor is most important for determining the location of spawning grounds in migratory species

A

Favorable conditions of larval development

19
Q

Which is a typical feeding strategy of larvaceans

A

Filter feeding using cilia

20
Q

Which group of plankton is responsible for harmful algal blooms

A

Dinoflagellates

21
Q

What is the primary reason why marine homeotherms lose heat rapidly to the environment

A

Their body temperature is higher than surrounding waters

22
Q

How does mixotrophic plankton obtain energy?

A

By photosynthesis and phagocytosis

23
Q

What factor is most likely to cause interspecific hybridization in free-spawning species?

24
Q

How do hermaphroditic barnacles ensure successful reproduction despite their sessile lifestyle

A

By using long penises to reach nearby individuals

25
How do gelatinous zooplankton such as siphonophores maintain buoyancy and move through the water?
By using air-filled sacs and muscular contractions
26
Which of the following best explains why free-spawning organisms often synchronize their spawning
To maximize fertilization success
27
How does dwarf male in certain barnacle species maximize their reproductive success?
By attaching to females and living parasitically
28
What is the primary role of heat-shock proteins in marine organisms
They protect proteins from denaturation under high temperatures
29
What is the characteristics of gelatinous zooplankton, such as comb jellies
They propel themselves with cilia
30
What is a common adaptation of deep-sea plankton to a low-light environment
Increase bioluminescence