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MaRussiya [10]
3 years ago
10

How do plants, trees and flowers grow ?

Biology
1 answer:
rjkz [21]3 years ago
3 0
Sunlight Water and good soil
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A marine ecologist counts the number of crabs in three different intertidal regions that are each two hectares. The crab counts
romanna [79]

Answer:

Density is nearly 3 cabs per hectare

Explanation:

Given -

There are three three intertidal regions.

Area of each intertidal region is 2 hectares.

Number of crab in the intertidal regions are as follows -

Intertidal region I - 7

Intertidal region I - 2

Intertidal region I - 6

Sum of crabs in all three regions is equal to

7 + 2+ 6\\= 15

Total area of all three intertidal regions is equal to

2 + 2+ 2\\= 6 hectares

Now density per hectare is equal to total population of crab divided by total area of all the three intertidal regions

Density = \frac{15}{6} \\= 2.5

Density is nearly 3 cabs per hectare

5 0
3 years ago
Earth has undergone some catastrophic changes from time to time. Which of these most likely explains why life on Earth continued
kherson [118]

A- a wide diversity of spesoces


6 0
3 years ago
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6. The arrow represents the movement of which substances?
stealth61 [152]

Answer:

wet

Explanation:

8 0
3 years ago
How are the three chromosomal aberrations different from each other?
Amiraneli [1.4K]

<span>1.) Deletions: A percentage of the chromosome is lost or removed. </span>

<span>2.) Duplications: A share of the chromosome is doubled, which results into an extra genetics.</span>

<span>3.) Translocations: A portion of a chromosome is relocated to an alternative chromosome.</span>

6 0
3 years ago
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What codes for proteins?<br><br> A. DNA<br> B. RNA<br> C. Polypeptides<br> D. Amino acids
sveticcg [70]

Answer:

D. Amino Acids

Explanation:

DNA and RNA viruses are included in an organism's genome. The genome component that codes for a protein or RNA is called a gene. The protein-coding genes consist of tri-nucleotide units called codons, each with an amino acid code.

I am joyous to assist you anytime.

5 0
3 years ago
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