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Nata [24]
3 years ago
5

Explain how scientists use geological time to determine the age of landforms

Biology
2 answers:
Molodets [167]3 years ago
7 0

Answer:

Explanation:

Scientists observe the layers for evidence of similar rock types and fossil formations to determine the age of landforms. If they find the same fossil in two different locations, scientists may conclude that those fossils are most likely from the same time period.

masya89 [10]3 years ago
5 0

Answer:

o determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This is called the Rule of Superposition. ... With absolute age dating, you get a real age in actual years

= )

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Starchy grain is dominant over sugary corn. If, in a cross between these types, 58 of the progeny are sugary, how many of the pr
DaniilM [7]

Let us solve first the phenotype of this problem.

Starchy grain = AA (dominant)

Sugary Corn = aa (recessive)

AA x aa = AaAa ; AaAa

<span>     A    A</span>

<span>a  Aa   Aa</span>

<span>a  Aa   Aa</span>

The result of the cross is that the progeny will become heterozygous.

<span>If there is 58 progeny sugary, there will also be 58 starchy. It is 50%.</span>

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3 years ago
Deoxygenated blood fills this receiving room.
kati45 [8]
The Atria Are the Heart's Entryways for Blood
The left atrium and right atrium are the two upper chambers of the heart. The left atrium receives oxygenated blood from the lungs. The right atrium receives deoxygenated blood returning from other parts of the body.

The heart
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2 years ago
Only around 1.5% of human DNA is used to make proteins, meaning<br> only 1.5% of human DNA
ella [17]

Answer:

This means that only 1.5% of human DNA has amino acids

6 0
3 years ago
Which of the following is a normal process of photosynthesis that could not occur if all reaction centers were inactivated by a
Arturiano [62]

Answer:

A. donation of excited electrons by chlorophyll a to a primary electron acceptor

Explanation:

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4 0
2 years ago
Dynamic regulation is required for maintaining homeostasis.Explain how a cellular mechanism that regulates the quantity of a bio
Troyanec [42]

The homeostasis of the human body works like a machine set at a particular standard. If the factors deviate from the standard values, the homeostatic mechanism come into action.

For example, if a cell requires certain protein, the respective genes get a signal and get activated. The cell start synthesizing the protein and when sufficient amount is made, there is a feedback loop, which allows the same protein to stop the synthesis as well. A lot of organs and cellular systems are involved in regulating the synthesis of this protein.

This is similar to the cooling system. If we set the temperature of the cooling system to certain degree, it will start cooling the room till the required temperature is reached. As soon as the temperature is acquired, the system cut-off automatically and the required temperature is maintained.

8 0
3 years ago
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