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qwelly [4]
1 year ago
13

What types of animals exist in the third trophic level of an aquatic ecosystem​

Biology
1 answer:
mr_godi [17]1 year ago
8 0

Answer:

 Juvenile stages of fish and jellfish, small fish, crustaceans and sea stars

Explanation:

hope it helps and give brainliest

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Please help me clearly 25 points mateee!!
Leona [35]

3. IV:height of drop DV:height of bounce CV: type of ball, place where ball is dropped, climate/wind

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5. IV:depth of water DV: temperature CV: amount of water in lake, temperature, climate/season


4 0
3 years ago
One of the key innovations in the evolution of eukaryotes from a prokaryotic ancestor is the endomembrane system. What eukaryoti
ElenaW [278]
The answer u r looking for is- D, Nuclear Envelope. Hope I’ve helped ;)
4 0
2 years ago
According to the _____ theory, when a physiological need, such as hunger, creates an aroused tension state, it drives the organi
madreJ [45]

Answer:

the drive-reduction theory

Explanation:

The drive-reduction theory is one of the theories of motivation.

This theory contains the idea that a physiological need creates a drive, which in turn motivates an organism to satisy their need.

The theory targets homeostasis or biological balance.

When there is a need such as lack of water, the need would cause a drive to be developed (thirst).

The drive would activate a response (search for water to drink).

The response is then terminated when the need has been satisfied.

4 0
2 years ago
After cooking the hot dogs, your friend's mom reminds you not to leave the grill out, or the iron (Fe) in the grill will react w
sammy [17]

Answer:

Explanation:

Oxygen gas and water must be present for iron to rust.

A region of the metal’s surface serves as the anode, where oxidation

occurs:

Fe(s) → Fe²⁺ (aq) + 2 e⁻

The electrons given up by iron reduce atmospheric oxygen to water at the cathode, which is another region of the same metal’s surface:

O₂ (g) + 4H⁺ (aq) + 4 e⁻ → 2 H₂O (l)

The overall redox reaction is:

2 Fe(s) + O₂(g) → 4H⁺(aq) + 2Fe²⁺ (aq) + 2 H₂O(l)

The Fe²⁺ ions formed at the anode are further oxidized by oxygen:

4 Fe²⁺ (aq) + O₂(g) 1 (4 + 2x) H₂O (l) → 2 Fe₂O₃ . xH₂O(s) + 8 H⁺(aq)

This hydrated form of iron(III) oxide is known as rust. The amount of water associated with the iron oxide varies, so we represent the formula as 2 Fe₂O₃ . xH₂O.

8 0
3 years ago
Match the description to the form of water that is described.
GaryK [48]

Answer:

Molecules are attracted to each other, but not ordered: liquid water

ater vapor

Molecules are not stuck together: water vapor

Liquid water Molecules are joined in an ordered structure: ice

Explanation:

8 0
3 years ago
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