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Vsevolod [243]
3 years ago
5

2) Trilobites are useful as index fossils, because each species existed for a...

Biology
1 answer:
Licemer1 [7]3 years ago
5 0

Trilobites are found worldwide and evolved rapidly, making them easily distinguishable from trilobites of other time periods

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A freshwater fish egg that contains 1% solute lives in a freshwater environment that also contains 1% solute. The freshwater sol
djverab [1.8K]

Answer:

It is Isotonic to the fish egg solution

Explanation:

It is Isotonic because Isotonic is a solution that has the same solute concentration with another solution I.e the amount of solute in one solution is the same with the other. This slow the free flow of solutes in equal part through the semipermeable membrane from one solution to the other.

3 0
3 years ago
One of the "triggers" proposed for the Cambrian explosion is a dramatic rise in oxygen concentrations that occurred in the ocean
ZanzabumX [31]

Answer:

1. Oxygen is an effective final electron acceptor in cellular respiration because of its high electronegativity.

2. Organisms that use it as a final electron acceptor can produce more usable energy than organisms that do not use oxygen, but only if it is available.

3. With more available energy, aerobic organisms can grow larger and move faster.

Explanation:

1. Cellular respiration is an aerobic pathway because oxygen is an electron acceptor. This process produces 38 molecules of ATP per glucose. The atomic elements that are positioned at the right of the periodic table have high electronegativities because they tend to be electron acceptors.  

2. The efficiency of energy production of aerobic respiration is much higher compared to the anaerobic respiration because this metabolic pathway (aerobic respiration) can produce 38 molecules of ATPs per glucose molecule, while anaerobic respiration produces only 2 ATPs by glucose.

3. A higher amount of available energy improves the metabolic profile of the organisms with aerobic respiration.

3 0
3 years ago
A cell has 10% dissolved particles, and the solution has 20% dissolved particles.
professor190 [17]

The  solution is hypertonic, and the cell will lose water.

8 0
3 years ago
Help please!! I don’t understand this.
Marianna [84]

Answer:

1. California Sea Lion and Galapagos Sea Lion are closely related because they have the same genus <em>Zalophus</em>.

2. <em>Escherichia</em> is a Genus.

3. Fungi

5 0
3 years ago
Ryland is setting up a cooler to store flowers for a big event. Which of the following is NOT going to contribute to ethylene bu
Bad White [126]

Answer:

Gas leaks

Explanation:

I don't know anything about biology but I know gas leaks aren't good for plants

6 0
3 years ago
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