Question 1

Question

If you run as fast as you can, your muscles may begin to feel weak and have a burning sensation. Explain what is occurring in your muscle cells that account for this muscle fatigue.

a
inadequate supply of glucose to muscle cells leads to alcohol fermentation
b
inadequate supply of oxygen to muscle cells leads to lactic acid fermentation
c
excessive supply of oxygen to muscle cells leads to mitochondrial autolysis
d
excessive supply of ATP to muscle cells leads to hypertonic conditions
Question 2
Kali designs a set-up to investigate germinating pea seeds. She fills a jar with seeds that have soaked in water.

In the jar, she places a beaker that contains a solution of bromothymol blue. Bromothymol blue turns green in the presence of carbon dioxide.

She will record observations on Day 1, wait 24 hours, and record again on Day 2.

Which question has Kali MOST LIKELY asked as she set up this investigation?

a
Do germinating peas release water in the process of photosynthesis?
b
Do germinating peas release carbon dioxide in the process of respiration?
c
Do germinating peas release oxygen in the process of respiration?
d
Do germinating peas absorb water in the process of photosynthesis?
Question 3
One side strand of a DNA molecule read 3' ATC GAC CAT 5'. What would the complementary strand read?

a
5' ATC GAC CAT 3'
b
5' ATC CCG GTA 3'
c
5' TAG CCG GTA 3'
d
5' TAG CTG GTA 3'
Question 4
Which RNA carries amino acids to the ribosome during translation?

a
drRNA
b
mRNA
c
tRNA
d
rRNA
Question 5
Pollination is a classic example of which type of symbiosis?



a
commensalism
b
parasitism
c
predator/prey
d
mutualism
Question 6
Biodiversity is believed to be the result of the interaction between
The biodiversity crisis in numbers - a visual guide | Cop15 | The Guardian
a
speciation and genetic engineering.
b
geographic isolation and reproductive isolation.
c
reproductive isolation and extinction.
d
speciation and extinction.
Question 7
The predator - prey relationship is based primarily on the quest for _______.

Predation - ScienceAid

a
mates
b
space
c
water
d
energy
Question 8
Match the vocabulary words to the correct definition

Column A
1.
Ecology:
Ecology
2.
abiotic factors:
abiotic factors
3.
biome:
biome
4.
biosphere:
biosphere
5.
ecosystem:
ecosystem
6.
niche:
niche
7.
population:
population
8.
species:
species
9.
community:
community
Column B
a.The study of the interactions between living things and their environment.
b.a group of the same animals or plants whose members interbreed.
c.the interactions and interrelationships that exist between all the living and nonliving things in a particular area.
d.
a community of plants and animals that have common characteristics for the environment they exist in

e.an interacting group of various species in a common location.
f.a position or role taken by a kind of organism within its community
g.A group of organisms having many characteristics in common and ranking below a genus
h.the nonliving components in an ecosystem that make it possible for organisms to survive.
i.Consists of all living things on Earth
Question 9
Scientists are observing a population of fruit flies in a contained environment. The scientists provide the fruit flies with the same amount of cornmeal and yeast extract each week. The graph shows the growth of the fruit fly population over time.

Which statement BEST describes what is affecting the population of fruit flies occurring in region X on the graph?

a
The fruit flies are affected by density-dependent limiting factors, causing an increase in mortality and migration.
b
The fruit flies are affected by density-dependent limiting factors, causing them to compete for food and space.
c
The fruit flies are affected by density-independent limiting factors, resulting in a decreased rate of reproduction.
d
The fruit flies are affected by density-independent limiting factors, resulting in lower quality nutrients being available.
Question 10
A graph representing a population growth curve is shown below.

What does B represent on this growth curve?

a
the lag phase of a population's growth
b
a population's carrying capacity
c
exponential growth within a population
d
linear growth within a population
Question 11
Please MATCH the Key Word to the correct definition.

Perfect Match GIF - Match Perfect - Discover & Share GIFs



Column A
1.
Biodiversity:
Biodiversity
2.
Primary consumer:
Primary consumer
3.
Primary succession:
Primary succession
4.
Secondary consumer:
Secondary consumer
5.
Secondary succession:
Secondary succession
6.
Biomass:
Biomass
7.
Logistic growth:
Logistic growth
8.
Exponential growth:
Exponential growth
9.
Carrying capacity:
Carrying capacity
10.
Density dependent limiting factors:
Density dependent limiting factors
11.
Ozone layer:
Ozone layer
12.
Non-renewable resource:
Non-renewable resource
Column B
a.Often herbivores, they eat producers.
b.Population curve showing slow, then continuous rapid growth
c.A measure of number of and variety of organisms in an area
d.A measure of living organisms and all biotic material in an area
e.Series of ecological events following a serious and damaging event in an area, but leaves soil
f.Population curve showing slow, then rapid growth with a leveling out of population size
g.Series of ecological events occurring in an area starting with bare rock and no life
h.Heterotroph that eats/can eat primary consumers
i.
Located in the stratosphere, it acts as sunscreen for the planet by preventing much of UV radiation from the Sun to reach the Earth.

j.Something that gets used up by use and cannot be quickly replenished
k.A measured limit on a population's growth based on resources, limiting factors and biotic potential
l.Usually biotic, conditions that slow population growth and are a reflection of population size
Question 12
In the early 1900s, fire ants came to the mainland United States aboard ships that had docked in their native South America. Within several years, fire ants had spread across the southern United States. Today, many products are available to control fire ants. However, when all fire ants are eradicated from an area, many different species of ants begin to cause disturbances. When one fire ant mound is reintroduced, no other ants cause problems. What could explain this behavior?

Kenneth Ross: History of Red Imported Fire Ant - Entomology & Nematology News - ANR Blogs

a
All the species of ants are dying out because of the warmer weather.
b
Fire ants do not allow any other ants in their territory, but when they are eradicated, the other ants can resurface.
c
Only the fire ants are becoming resistant to the chemical pesticides.
d
Because fire ants are an introduced species, they do not socialize with the other ants. When they are removed, the other ant species become more active.
Question 13
The model shows part of how carbon is cycled between living organisms.

image b43ccec60a054a2dbf9c8b5eba8bc2a8

The (bottom) green box in the model represents organisms that remove carbon dioxide from the atmosphere to recycle it. Which BEST describes these organisms?
a
producers that carry out photosynthesis to make carbon-rich sugars
b
fungi that break down oxygen and release carbon dioxide in exchange
c
consumers that make energy by taking in carbon dioxide when they inhale
d
bacteria that combine carbon dioxide with nitrogen to make nutrients
Question 14
As the depth of the ocean increases, the amount of light that passes through the water decreases. The graph illustrates the population size of four different species at different ocean depths.

Which species most likely performs photosynthesis?

a
Species Q
b
Species R
c
Species S
d
Species T
Question 15
What is the food Web? - Quora

Consider this food web. It is rich with animal species that fill a variety with niches within the ecosystem. Imagine that a local farmer has sprayed the area with insecticide. Predict how this might "initially" impact the food web and the roles each organism plays within it.



a
Although the farmer's spray would wipe out the insects, the other herbivores, rabbits, squirrels, mice and birds, would take over the empty niches and the food web would continue with very little change.
b
The entire food web would be decimated. The food web would collapse without this niche being filled due to the pesticides used.
c
One section of the food web would be greatly impacted right away: the section containing the insects and insect-eating animals. Without insects and possibly spiders, there would be no food for the frogs, shrews and insectivorous birds.
d
One section of the food web would be greatly impacted: the section containing the hawk and snake. They would quickly disappear due to the pesticide use.
Question 16
Read the passage "A Food Chain on TV" in the box below.


A FOOD CHAIN ON TV
While watching a nature program on TV about animals in an African savanna, Sydney realized that she was seeing a food chain in action. She saw some zebras eating grass and shrubs, and then she saw cheetahs eating other zebras.

If Sydney were to draw a food chain for the environment on the nature program, to which living thing should the last arrow point?

a
cheetah
b
grass
c
zebra
d
shrubs
Question 17
Which of the following is an environmental impact of mining coal?

The Mining Industry Could Strike Gold With Automation

a
acid mine drainage
b
increase in water pH
c
aquifer recharge
d
increase in biodiversity
Question 18
Primary succession will occur on

a
a rock exposed by a glacier that is melting.
b
a forest floor that just burned from a lightning strike.
c
a newly-cleared raised garden.
d
a piece of land that has been flooded by a river.
Question 19
What would exhibit primary succession?

a
a clear-cut forest used to make paper
b
an abandoned farm after a fire
c
newly flooded land after a storm
d
bare rock exposed by a retreating glacier
Question 20
During a dry season, a farmer can cause an environmental change by regularly watering crops. This environmental change can effect the stability of the field's ecosystem by causing the ecosystem to become

a
more stable, as the crops in the field receive too much water.
b
less stable, as the crops in the field receive more water than they would with rain.
c
less stable, as the crops in the field outnumber the native grasses in the field.
d
more stable, as the crops in the field do not dehydrate and die off.

Answer 1

Here are the answers to your questions:

Question 1:
b - inadequate supply of oxygen to muscle cells leads to lactic acid fermentation

Question 2:
b - Do germinating peas release carbon dioxide in the process of respiration?

Question 3:
d - 5' TAG CTG GTA 3'

Question 4:
c - tRNA

Question 5:
d - mutualism

Question 6:
d - speciation and extinction.

Question 7:
d - energy

Question 8:

1. a
2. h
3. d
4. i
5. e
6. f
7. b
8. g
9. c
10. a

Question 9:
b - The fruit flies are affected by density-dependent limiting factors, causing them to compete for food and space.

Question 10:
b - a population's carrying capacity

Question 11:

1. c
2. a
3. g
4. h
5. e
6. d
7. f
8. b
9. k
10. l
11. i
12. j

Question 12:
b - Fire ants do not allow any other ants in their territory, but when they are eradicated, the other ants can resurface.

Question 13:
a - producers that carry out photosynthesis to make carbon-rich sugars

Question 14:
a - Species Q

Question 15:
c - One section of the food web would be greatly impacted right away: the section containing the insects and insect-eating animals. Without insects and possibly spiders, there would be no food for the frogs, shrews, and insectivorous birds.

Question 16:
a - cheetah

Question 17:
a - acid mine drainage

Question 18:
a - a rock exposed by a glacier that is melting.

Question 19:
d - bare rock exposed by a retreating glacier

Question 20:
b - less stable, as the crops in the field receive more water than they would with rain.

Let me know if you need any more assistance!