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PilotLPTM [1.2K]
3 years ago
6

Explain how the geologist knows that the flow is older then the intrusion

Biology
1 answer:
tresset_1 [31]3 years ago
7 0
Through dating a sample of that rock, we determined the extrusion to be 250 million years old. An intrusion extends from the bottom layer into the fourth oldest layer. Through dating a sample of that rock, we determined the intrusion to be 100 million years old. The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. So the full sequence of events is as follows: Layer C formed.

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Which is the correct order of the processes that form rock from sediment? A. deposition, cementation, compaction, erosion B. ero
e-lub [12.9K]

Answer:

Option D, erosion, deposition, compaction, cementation

Explanation:

Sedimentary rocks are formed from the eroded soil. Therefore, erosion is the first step in formation of sedimentary rocks.  

The eroded soil or rock is carried by carrier agents such as wind, water etc. and deposited at some place where it gets compacted under its own weight. After deposition and compaction, physio-chemical processes take place to produce chemical bonding between the deposited granular particles. Chemical interactions causes cementation of the compacted material  

Hence, option D is correct

6 0
3 years ago
Which of the following is not an example of a plant defense against herbivory? A) nicotine B) cryptic coloration C) spines D) th
Klio2033 [76]

Answer:

B) cryptic coloration

Explanation:

The plants have developed numerous different types to protect themselves from the herbivores because they tend to damage them or even totally destroy them. The development of certain chemicals that are unpleasant or poisonous for the herbivores is one of the defense mechanisms, like the development of nicotine or the highly toxic strychnine. Also, physical defense mechanisms that hurt the herbivores like the spines or thorns have been developed, making the herbivores think twice before they try anything as they can get hurt because of them. The cryptic coloration though is not a defense mechanism of the plants, but instead it is a defense mechanism that is used by the animals. This type of coloration is protecting the animals as it managed to blend them in with the environment, thus it is very hard to spot them, or it makes their shape much different in the eyes of the predators thus confusing them.

7 0
3 years ago
Which phrase describes the purpose of ubiquitin
Anika [276]

Answer:

regulates other proteins

Explanation:

Ubiquitin is a small protein that is found in almost all cellular tissues in humans and other eukaryotic organisms, which helps to regulate the processes of other proteins in the body.

hope this helps, pls mark brainliest :D

6 0
2 years ago
What animal has 8 hearts?​
frosja888 [35]

Answer:

no animal has 8hearts

Explanation:

tho octopus have 3hearts

6 0
3 years ago
Read 2 more answers
Number the following steps in the correct order and tell which stage it occurs in:
Sedaia [141]

Answer:

The correct answer is given below:

Explanation:

1. A cleavage furrow or cell plate forms, separating the nuclei - Cytokinesis.  During cell division, after division of nucleus, cytoplasm divides by furrow in an animal cells and by cell plate formation in the plant cells.

2. Chromosomes line up at the equator and chromatids are attached to spindle fibres—Metaphase. During metaphase all the chromosomes get arranged on the equatorial plane or the central plane

3. Nuclear membrane and nucleolus reappear- Telophase. The nuclear membrane starts to form around each of the daughter chromosomes and nucleolus also reappears in the daughter nuclei.

4. Genetic material replicates and is joined at the centromere- S-phase of the interphase. Duplication or copying of the DNA occurs in this phase  

5. Centromeres divide and single-stranded chromosomes move to the poles- Anaphase.  During anaphase, the sister chromatids of each chromosome gets separated and move to the opposite poles.

7 0
3 years ago
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