1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Veronika [31]
3 years ago
10

In a lake with three trophic levels (non-native fish, zooplankton, algae), an algal bloom occurs when the small population of zo

oplankton declines due to the predation of the invasive fish. Which of the following describes why zooplankton are the keystone species in this scenario?
Zooplankton are the smallest of all the herbivorous marine mammals in their communities.
The small population of zooplankton have an unequal effect on the marine community.
Marine mammals depend upon the work of zooplankton to convert sunlight into food.
Zooplankton help other populations survive by keeping out other herbivores.
Biology
1 answer:
aev [14]3 years ago
8 0

Answer:

The small population of zooplankton have an unequal effect on the marine community.

Explanation:

According to this question, there are three trophic levels of organism in a lake as follows: non-native fish, zooplankton, and algae. However, due to the declination in the number of zooplanktons in the lake as they were fed on by the non-native fish, the algal population increased to form a BLOOM.

This bloom of algal species can be attributed to the lack of zooplanktons, which represented the only herbivorous (plant eaters) organism in that community. Hence, their relatively small population have an unequal effect on the marine community. This means that the small population of zooplanktons caused an imbalance in the community and this is why ZOOPLANKTON is the keystone species in this scenario.

You might be interested in
The shape of the cell changes in_______
LiRa [457]

Answer:

Its Euglena

Explanation:

Shape change from normal elongated egg-shape to round-shape in stressful environment. These shape changes attain two transition phases. The I-transition phase is reversible where the organism can return to normal if favourable environment persists.

5 0
3 years ago
I need help with this
pickupchik [31]
It would be A. That’s the point of a flu shot. U inject the virus to make your body know it’s bad and when It comes along again to fight it hard.
6 0
3 years ago
Can something alive be only unicellular?why or why not?
Lynna [10]

Yes because the cell that the organism is made out of is its life source. For example, bacteria is a single celled organism.

6 0
3 years ago
A graph with a calibration curve, linear regression and extrapolation was drawn up from your lab results. What were the two type
fiasKO [112]

Answer:

X is the concentration of the substance being measured and Y is the response from the instrument that is being used to measure

Explanation:

A calibration curve is the plot of known concentration of substances where x is the increasing known concentration and Y is the response, typically "absorption" taken from the instrument that is used for measuring. This curve is then used to find out the concentration of the unknown substance by using it's absorbance and comparing it with the calibration curve. For example:

Concentrations and absorbance readings are as follows

0.5mg/mL=10 nm

1.0mg/mL=15nm

1.5mg/mL=20nm

2.0mg/mL=25nm

This data is plotted on a calibration curve. Next we measure the unknown substance the absorption is 20nm. We can suggest that the concentration is 1.5 mg/mL. If there are readings that fall inbetwen values then the formulat to calculate the right concentration would be y = mx + b, where m is the slope and b is the y-intercept.

Linear regression uses the modification of the slope formula y= a + bx to best see how the data of the water samples would fit on the slope of the calibration curve. X is the independent variable , b is the slope of the line and a is the y-intercept.

Extrapolation would be the action of calculating data that are outside the calibration curve,  assuming the trend would continue.

7 0
3 years ago
About how many cells make up a blastocyst?
NeTakaya

Answer:

i <3 you alot ;)

Explanation:

and c is the answer

6 0
3 years ago
Other questions:
  • _______ is the type of vision useful in sensing motion and objects outside normal vision.
    12·1 answer
  • What are positive impacts of algae? How is it used?
    11·1 answer
  • A single-celled zygote develops into a multicellular organism with specialized cells through the processes of
    8·1 answer
  • What is one way to classify mud found in an ecosystem
    9·2 answers
  • List eight major classes of primary outdoor pollutants
    13·1 answer
  • In complete sentences, please explain why it is good to sweat during/after a workout. What might happen if an athlete did not sw
    12·1 answer
  • The most common danger related to the destruction of CD4 T cells is
    6·1 answer
  • According to the graph below, at which point is the plant performing the most
    9·1 answer
  • Does anyone know this!?
    9·2 answers
  • Identify organelles in a plant cell.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!