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geniusboy [140]
2 years ago
6

Which evidence is provided by fossil record

Biology
1 answer:
GalinKa [24]2 years ago
3 0

The fossil record

This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones. Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.There are gaps in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind. What traces there were may have been destroyed by geological activity. This is why scientists cannot be certain about how life began.

Fossils provide a snap shot of the past and allow us to study how much or how little organisms have changed as life developed on Earth.

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When a motor neuron and the skeletal muscle cell it innervates are at rest:?
Nuetrik [128]

<span>Particularly the skeletal muscles at rest gain most of their energy from the aerobic respiration of fatty acids. Hence fatty acids provide the majority of the energy for muscle metabolism when a person is exercising at 25% of VO2max. However, the motor neuron is at rest when a neuron is not receiving any input there will be a potential difference. Thus, the potential difference measured when the neuron is inactive and it is caled the resting membrane potential. </span>

3 0
3 years ago
Which class of amino acids contains side chains that would be unable to form hydrogen bonds with water?
seropon [69]

Answer:

Amino acids with non-polar side chains.

Explanation:

The class of proteins that is unable to form hydrogen bonds with water are the amino acids with non- polar side chains. This class includes the amino acids

Alanine

Valine

Leucine

Isoleucine

Proline

Phenylalanine

Cysteine

Methionine

Tryptophan

These are the nine proteins which are considered to be strongly hydrophobic. All these amino acids are hydrophobic in nature due to their side chains. Glycine is not added to this list as it does not have a side chain.

6 0
3 years ago
From which hot spot would you view Polaris at an altitude of 45 degrees?
maks197457 [2]

Answer:

Massena, New York

Explanation:

Polaris is most popularly known as the North star. It is also famous by the name of "Pole Star". It is the closet to the north celestial pole. At present it is the northern pole star currently.

It is found in the constellation of Ursa Minor. It is the one of the brightest star seen in the night sky. It is considered the star of the second magnitude which is situated close to the heaven's north pole.

The altitude of the Pole star or the Polaris when an observer is at the Tropic of Cancer is measured at 23.5 degree. While if the observer sees the Pole star at its zenith, the observer is located at the North Pole. i.e. 90 degree.

And the spot from where the observer views the Polaris at 45 degree altitude is Massena, New York.

8 0
3 years ago
What helps the stem of the Bramble to grip and move over the ground
Simora [160]

Answer:

your answe is 1 million tasound

Explanation:

7 0
2 years ago
ASAP PLS
mars1129 [50]

Whales have pelvic (hip) bones, which are evolutionary remains from when their forefathers walked on land about 40 million years ago. Common belief has long assumed that such bones are merely vestigial, slowly withering away like human tailbones. Thus option C is correct.

<h3>What is the new research from USC and the Natural History Museum of Los Angeles County (NHM) has to say ?</h3>

New research from USC and the Natural History Museum of Los Angeles County (NHM) contradicts this belief, discovering that not only do those pelvic bones have a role, but their size and perhaps shape are impacted by sexual selection processes.

Therefore, small, shrunken hip bones of whale are no longer beneficial for survival and are considered vestigial. So, the best option is C among the other options available. Thus option C is correct.

Learn more about this here:

brainly.com/question/21492781

#SPJ5

5 0
2 years ago
Read 2 more answers
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