Does the virus use any energy while replicating?

What is the source of oxygen in the epipelagic zone?

Rudiy27

The correct answer is (B) Photosynthesis and diffusion from the air

Dissolved oxygen enters the water from photosynthesis and through air. The The aeration of water can be caused by wind. From the air oxygen diffuse into the water and gets mixed in the it through circulation. The oxygen is also produced as a waste product of photosynthesis from blue-green algae, phytoplankton, etc which is added in water.

7 0

2 years ago

Your coworker who has been standing in place a long time while monitoring a production line tells you that he suddenly feels lig

VMariaS [17]

Light-headedness is a condition in which an individual may feel dizzy or about to faint and it often goes away or improves when one lies down. For the question above, you should respond by having your coworker sit down in a cool area, and drink plenty of cold water.

4 0

2 years ago

Read 2 more answers

Scientists are studying the structure and function of receptor x, a single-polypeptide protein that is found in the membrane aro

svetlana [45]

Answer:

This protein doesn't have a secondary structure (i.e., alpha helices or beta sheets), thereby it interacts with the specific molecule trough its loops

Explanation:

Protein loops may interact with diverse molecules including nucleic acids (RNA and DNA), proteins, signal molecules, etc. These protein sequences (loops) interact with both polar and non-polar head groups

5 0

1 year ago

As an infant, Maya had to have part of her brain removed due to a life-threatening medical problem. Eighteen years later she gra

laila [671]

Answer:

D

Explanation:

Brain can create new connection between neurons.

6 0

2 years ago

Dentify the relationships between the zooxanthellae and the hard coral, the remora and the manta ray, the tiger shark and the gr

sergeinik [125]

Answer:

1. Mutualism

2. Mutualism (it was previously thought to be a case of commensalism)

3. Predation

4. Competition

Explanation:

1. Zooxanthellae and hard coral - Mutualism

These two organisms live in symbiosis. This means that both benefit each other. Zooxanthellae allow corals to gain energy through photosynthesis and, in turn, they receive important nutrients that are produced during the metabolism of the hard coral.

2. Remora and manta ray - Mutualism

Remoras and manta rays benefit each other. Remoras attach to manta rays mainly for transportation and feeding, but they also do it for protection. In turn, they make sure manta rays are clear from harmful bacteria and parasites. Several years ago, it was thought that manta rays didn't gain any benefit from remoras, so this was thought to be a case of commensalism. However, research has shown that they both benefit from each other. Therefore, this is also a case of mutualism.

3. Tiger shark and green sea turtle - Predation

In some areas (not everywhere) tiger sharks feed upon green sea turtles. For example, in Hawaii, have been observed to attack green sea turtles and feed on them. Researchers have spotted numerous sea turtles with characteristic tiger shark bites.

4. Dolphins and school of trevallies - Competition

Trevallies are large species of fish that feed on small schools of fish like dolphins. They both have their own predatory strategies that involve planning and gathering to catch large amounts of fish. Therefore, trevallies and dolphins compete for small schools of fish.

5 0

1 year ago