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borishaifa [10]
3 years ago
5

Which of the following BEST describes how energy flows in this ecosystem?

Biology
2 answers:
Rina8888 [55]3 years ago
5 0

Answer:

D.) About ten percent of the energy at one trophic level is passed to the next trophic level

irina1246 [14]3 years ago
3 0

Answer:

D. About ten percent of the energy at one trophic level is passed to the next trophic level

Explanation:

In an ecosystem, the amount of energy decreases at each trophic level. Precisely, <u>the energy transfer from lower trophic level ot high trophic level is calculate to be 10% of the previous level</u>. Rest of the energy is just wasted through metabolic activities (e.g. heat). For example, if a grassland ecosystem has total energy of 10,000 Kcal, only 1000 Kcal would be transferred to the primary consumers, and then 100 Kcal to secondary consumers, and finally 10 Kcal to tertiary consumers. See figure for better understanding.

First option is incorrect because energy flow in an ecosystem is unidirectional. Option B and C are incorrect because energy flow is not dependent on specific animal/plant species but rather at trophic levels.

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What happens to the total charge of the compound after the ions bond together?
Maslowich
<h3><u>Answer;</u></h3>

<em>The overall or total charge becomes neutral, that is the total charge is Zero.</em>

<h3><u>Explanation;</u></h3>
  • <u>Ionic compounds are compounds composed of ions, charged particles that form when an atom gains or loses electrons.</u>  The charged particles are the positively charged ion known as cations and the negatively charged ion known as anions.
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4 0
3 years ago
a pill that contains no active ingredients is given to a control group. Which is this type of pill called?
Alenkinab [10]

This is usually called a placebo. They are used as control tests to make sure that a product actually works. A placebo, however, is not merely restricted to pills, though.

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3 years ago
Some synovial joints contain special crescent-shaped pads that provide additional shock absorption, and provide for a better fit
Ksivusya [100]

Answer:

menisci

Explanation:

Some synovial joints such as that of knees have crescent-shaped pads. These pads are made up of fibrocartilage and are present between the articular surfaces of the bones. These cartilaginous pads are attached to the fibrous capsule and are called articular discs or menisci.  

The function of the menisci is to serve in shock absorption and minimize the wear and tear of the joint. Meniscus also allows the articulating bony surfaces to fit properly and facilitate an adaptable surface for combined movements. Meniscus serves to distribute the weight over a greater contact surface and thereby makes the joint stable. It also spreads the synovial lubricant across the articular surfaces of the joint.

5 0
3 years ago
Water is able to maintain the temperature of living organisms, keeping them from freezing or overheating. This is because water
dmitriy555 [2]

Answer:

High specific heat.

Explanation:

Water is able to maintain the temperature of living organisms because it has highest specific heat. Specific heat is a physical property of matter. If specific heat is high then the matter does not get heated easily but once it is heated it does not cool down easily either. In short we can say that water can easily resist temperature changes because it has very high specific heat.   This property plays a great role in maintaining the temperature of a living organism's body because all organisms have water in their body. When heat is generated within the body, it is unable to disrupt internal temperature of the organism's body because the water does not get heated easily as a result of which the temperature of the body does not rise. On the other hand, the internal temperature of the body remains the same with slight decrease in the temperature outside because water does not radiate heat easily either. This is how high specific heat of water helps in maintaining a constant temperature in the body of organisms.

5 0
3 years ago
What is the chemical reaction that causes lactase to accelerate?
Reika [66]

Answer:

The enzyme you will be studying in this experiment is lactase, and the reaction it catalyzes is the hydrolysis of the disaccharide lactose into the monosaccharides galactose and glucose.

Explanation:

3 0
3 years ago
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