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Xelga [282]
1 year ago
11

Igneous rock is formed from the cooling and crystallization of magma or partially melted rock. Igneous rock can be either intrus

ive or extrusive. Intrusive igneous rock has larger crystals, and extrusive igneous rock has small crystals. Sometimes the small crystals are not even visible. What determines whether igneous rock is intrusive or extrusive? A. where the rock was formed B. the density of the rock C. the chemical composition of the rock D. where crystals in the rock are found
Biology
1 answer:
11111nata11111 [884]1 year ago
4 0

Answer:

A

Explanation:

Intrusive igneous rocks cool from magma slowly because they are buried beneath the surface, so they have large crystals. Extrusive igneous rocks cool from lava rapidly because they form at the surface, so they have small crystals.

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According to the article, how does human activity affect the availability of food for deer populations? What result does this ha
Nesterboy [21]

Answer:

Human activity affects the availability of food for deer populations in many ways. Hundreds of years ago, dear were very rare but now more civilization has occurred making more food for dear in the gardens outside of peoples houses. Also, people have started to kill organisms that they found harmful to themselves, causing the dear population not to decrease, but stay the same and reproduce.

Explanation:

Hope this helps!

4 0
1 year ago
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4. Discuss the concept of blended unity of mind and body, its implications for school physical activity programs, its implicatio
iragen [17]

Explanation:

This statement is correct because the concept of integrating body and mind in physical activity was responsible for the expansion of physical activity, in addition to activities that promote only the well-being of the body aesthetically, but as a set of activities responsible for improvement of health, intelligence, emotional, creativity, as well as an instrument of social integration. The practice of physical activity releases endorphins in the brain, which is a natural substance produced by the brain that is associated with well-being, mood and joy, and this effect occurs during and after physical activity.

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1 year ago
In the late 1960s, Robert Paine conducted landmark studies on diversity in the rocky intertidal zone, comparing the species dive
devlian [24]

Answer:

C: competitive exclusion

Explanation:

<em>The competitive exclusion principle states that organisms living in the same community while competing for the same resources cannot coexist at a constant population rate. </em>

Once some of the species within the community get a slight competitive edge over other species, they become dominant and this might lead to the extinction of the weaker species in the long run.

<u>In the experimental plot, the removal of sea stars provided mussel and barnacle with a competitive advantage over other species within the community (sea stars are predators of mussels and barnacles). This led to the dominance of mussel and barnacle and the eventual extinction of other species within the experimental plot as compared to the control plot.</u>

The correct answer is C.

4 0
2 years ago
Rosa drew a diagram to compare substitution mutations and insertion mutations.
djverab [1.8K]
<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2>

\huge\boxed{Option A}

<h2>_____________________________________</h2><h2>Mutations:</h2>

Mutations are the changes produced in the nucleotide sequence of the genome.

There are four main types of mutations

Substitution

Insertion

Deletion

Duplication.

<h2>_____________________________________</h2><h3>DELETION:</h3>

A small segment of chromosome mat be missing. This condition is known as deletion.

For example, Normal chromosome has A B C D E F G. If deletion mutation occurs then mutated chromosome has A D E F G and B C got deleted.

<h2>_____________________________________</h2><h3>DUPLICATION:</h3>

In this condition, a part of chromosome present in exec ess to the normal chromosome.

For example, Normal Chromosome has A B C D E F G. If duplication mutation occurs, then mutated chromosome had A B C B C D E F G and B C is duplicated.

<h2>_____________________________________</h2><h3>SUBSTITUTION MUTATION:</h3>

Substitution is a type of mutation where one base pair is replaced by a different base pair.

For example, in the sequence CAAGT, if C replaces G, it is a substitution mutation.

<h3>INSERTION MUTATION:</h3>

In genetics, an insertion is the addition of one or more nucleotide base pairs into a DNA sequence.

For example, in the sequence CAAGT, if extra base G gets inserted after C, the new sequence would be CGAAGT.

<h2>_____________________________________</h2>

Both substitution and insertion mutations change the position of nucleotide thus, the type of amino acid.

<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2>

3 0
1 year ago
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Answer:

Seaweed might start to grow out of control withough crabs eating it, octopuses on the other hand would struggle to find food and start to die off because they relie on crabs to be their food source.

8 0
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