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vladimir2022 [97]
2 years ago
13

Dark energy has been hypothesized to exist in order to explain:

Biology
1 answer:
kykrilka [37]2 years ago
4 0
Dark Energy explains:
How groups of objects function together, and also to keep the universe expanding
Hope this helped.
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Is a catalyst a macromolecule?
Arlecino [84]
No, a macromolecule is a large organic molecule

Hope this helps

3 0
3 years ago
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A cell has a defect that results in the loss of its ability to regulate the movement of water, food and wastes into and out of t
Sveta_85 [38]

Answer:

C

Explanation:

The answer is C

5 0
3 years ago
Mildred collects a sample of fossilized plant material. She takes it back to her lab to run some tests on it. Mildred is able to
xeze [42]

Answer:

The process that Mildred used is known as Radiocarbon dating

Note: The question is incomplete. The complete question is given below:

Mildred collects a sample of fossilized plant material. She takes it back to her lab to run some tests on it. Mildred is able to measure the amount of carbon-14 in her sample and compare this to the amount of carbon-12 in it. She uses this information to calculate that the fossil is 4,500 year old. The process that Mildred used is known as _______

Radiocarbon dating

Faulting

Indexing

Superposition

Explanation:

Radiocarbon dating is a process of determining the age estimates of various objects and materials using the radioactive properties of an isotope of carbon, carbon-14.

Radiocarbon dating uses the ratio of two isotopes of carbon, carbon-12 and carbon-14 present in materials which contains carbon to determine their age.

There is a fairly constant ratio of carbon-12 and carbon-14 in living organisms. However, at death, due to the decay of carbon-14 to carbon-12, the ratio begins to change. Since the rate of decay of carbon-14 is fairly constant, a property known as half-life, the time it has taken for carbon-14 to decay to carbon-12 can be calculated. This calculated time will givee the age of the fossilised material.

6 0
2 years ago
When can a species develop generic diversity
sweet [91]
Do you mean (Genetic Diversity)?

All living beings have genetic diversity. Some have more than others.


Woody plants, such as trees, tend to have more genetic diversity, on the whole, than vascular plants, such as grasses. ... Part of the diversity is due to the size of each species' geographic range and how far they can move their genetic information, for example through wind pollination or animal seed dispersers.
5 0
3 years ago
I will mark brainliest!! THANK YOU! Students are discussing differentiation of cells in an organism. Which student has to most a
In-s [12.5K]

Answer:

Student 2

Explanation:

I think it is student 2 because differentiation is the dividing and changing of embryonic stem cells into cells that are specialized in structure and function. Some stem cells form liver cells, some heart cells, muscle cells.

5 0
3 years ago
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