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Musya8 [376]
3 years ago
9

When people living on hills put in concrete barriers, plywood fencing, and drainage pipes, they are trying _____________________

_
Biology
1 answer:
svlad2 [7]3 years ago
6 0

Answer: slow erosion down

Explanation:

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Fly species w, found in a certain part of the island, produces fertile offspring with species y. species w does not produce fert
34kurt
Considering the answers;
A. are still sibling species
B. shared a common ancestor more recently with each other than either did with the other two species
C.May merge into a single species if their hybrids remain fertile over the course of many generations.
D. A and B only
E. A, B, and C
The answer will be E. 
If no other species can hybridize, then species W and Y are still sibling species, shared a common ancestor more recently with each other than either did with the other two species and also may merge into a single species if their hybrids remain fertile over the course of many generations. 
5 0
3 years ago
Answer all 20 and I can give you brainliest
ExtremeBDS [4]

Answer:

1.(D)

2.(D)

3.(C)

4.(B)

5.(B)

6.(C)

7.(B)

8.(D)

9.(A)

10.(africa)

11.(D)

12(B)

13(?)Convergent boundaries

14(C)

15(A0

16(​Sturdy Desks and Tables. The safest place to perform the 'duck, cover, and hold' action is under a sturdy desk or table. ...

Bed or Closet. When you are in bed during an earthquake, stay there. ...

A Room with No Windows. Stay away from glass windows during an earthquake. ...

Door Frame. ...

Outside your Home.

So C?

17(C)

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20(B)

Extra credit question

Earth is special because it is an ocean planet. Water covers 70 percent of Earth's surface. Earth's atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe.There are multiple reasons for earth to be a special planet. Reasons are as follows

1.Earth is the only planet known where intelligent life exist.

2.It lies in the circumstellar habitable zone (CHZ). CHZ is defined in the image given below.

3. Earth has a unique magnetic field which protects the earth from the harmful solar winds. These solar winds played a role in transforming venus into hell.

4. Earth has Van Allen radiation belts which protects it from cosmic rays.

5. Our large neighbour Jupiter protects is from many comets and asteroids that come from the keiper belt and Oort cloud.

6. Earth's atmosphere is favorable to support life on earth. This atmosphere consists of different gases in adequate amount. If the percentage of gases would differ then life on earth may face serious consequences.

7. Tectonic plates of earth differentiates it from most other planets.

8. Earth has a solid crust unlike the gaseous planets.

9. Earth has been gifted with a medium sized star which release solar winds and protect us from the harmful radiation of outer space.

Brainliest?

Explanation:

5 0
2 years ago
When does cell differentiation occur? Question 1 options: when cells express the same gene when cells express different genes wh
serg [7]

Answer:

The answer is when the cell express different genes.

Explanation:

Cell differentiation is the process when a cell is changed from one cell type to an other and brings more complexity to the system. A cell before differentiation possess all the genes however their expression in turned off. When some external or internal factors trigger the gene expression it starts the cell differentiation. A multicellular organism undergoes several rounds of cell differentiation during its development. Although cell differentiation changes the size, shape and metabolic activity but the genetic makeup or DNA is never changed during cell differentiation.

5 0
3 years ago
Select the statement that is false. The sugar of RNA differs from the sugar of DNA. Three main types of RNA exist. If one side o
Cloud [144]
Three main types of rna exists is false
4 0
2 years ago
Read 2 more answers
in the image below, what molecule is being released by cellular respiration and used in photosynthesis ​
olasank [31]

Answer:

the answer is B

Explanation:

plants need carbon dioxide to be able to produce anything

4 0
3 years ago
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