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anzhelika [568]
3 years ago
6

James looked at a picture of rock layers while studying how scientists determine the ages of rocks. He looked at the variety of

layers and understood that the law of superposition indicated something about the rock layer ages. What does the law of superposition indicate?
A. The rock layers can change their position and push younger rock layers under older rock layers.
B. The rock layers can change their position and push older rock layers under younger rock layers.
C. The rock layers on top are the youngest layers and the lower rock layers are the oldest layers.
D. The rock layers on top are the oldest layers and the lower rock layers are the youngest layers.
Biology
2 answers:
goldfiish [28.3K]3 years ago
8 0
The answer is C........
katen-ka-za [31]3 years ago
6 0

Answer:The answer would be C.

Explanation:

Law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence.

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What does it mean if someone is malnourished?
Goshia [24]
To be malnourished means to lack proper nutrients that keep you healthy say a person likes fast food and eats only fries for a long period of time they will lack nutrients and get sick which is the bodies way of saying you need to eat a variety of food.
6 0
2 years ago
As temperature of this substance rises from 20*c to 50*c, the substance_____heat and its kinetic energy_____.
NikAS [45]

The answer would be:

A. Absorbs; Increases

This is why:

When a substance is heated, the molecules that makes that substance gain kinetic energy. This is because heat is energy and the substance ABSORBS it. When this happens, this causes the molecules to move faster which results in an INCREASE in kinetic energy. This would result to an increase in temperature of the substance.

5 0
3 years ago
Generally speaking, which of the following mutations would most severely affect the protein coded for by a gene?a) a base substi
Pavlova-9 [17]

Answer:

Answer is C.

Explanation:

For A and B, a base substitution affects one of the three bases that comprise a codon, the DNA/RNA unit that corresponds to a particular amino acid. If one base is substituted, one codon and therefore one amino acid will be affected. Codons have built-in redundancy, so even by changing one base, the new codon sometimes still corresponds to the same amino acid. Therefore, a base substitution at most affects one amino acid, and sometimes doesn't affect it all.

Frameshift mutations cause a lot more trouble. These occur when you have a deletion or insertion that changes the number of bases in your gene. As a result, the "frame" of the codons changes (everything shifts one way or the other by the number of bases added/removed). This affects EVERY codon downstream of the mutation, so you can imagine that such a mutation would have a bigger effect the closer to the start of the gene it occurs. This is why C is correct.

3 0
3 years ago
Avery is examining cells under the microscope. she is using the 40x objective to view the slide with a 10x eyepiece. what is the
valkas [14]
400x I hope that help
7 0
3 years ago
Fish lay a large number of eggs, few of which are fertilized and very few of which hatch into young ones. Still fewer live to ma
vazorg [7]
The answer would be survival of the fittest.

This metaphor, "<em>survival of the fittest</em>," was used by Herbert Spencer to explain <em>natural selection. </em>It is sometimes also referred to as the survival for existence. This phrase came from the Dawinian theory of evolution where he explains that all species are capable of producing many offsprings. However, the survival of those offsprings depends on their ability to adapt to the risks and opportunities of the external environment. 
<em>
</em>This relates to your scenario in the sense that fish lay a lot of eggs in the beginning but not all of them would live to achieve maturity. This is because even as eggs, they have many predators and are exposed to other elements. The threat pushes on even if they are able to hatch and grow up. 
<em>
</em>
8 0
3 years ago
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