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Len [333]
3 years ago
5

What is the powerhouse of the cell?

Biology
2 answers:
Travka [436]3 years ago
4 0

Answer:

Mitochondria are responsible for respiration

Blizzard [7]3 years ago
4 0

Answer:

I believe it's mitochondria

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What is the purpose of meiosis? How does the cell do the following: reduce the chromosome number in half and create genetically
s2008m [1.1K]

Answer:

2 cells meet and the number of chromosomes becomes equivalent to the somatic cell.

Explanation:

In meiosis crossing over occurs and the number of chromosomes divided or remain half as compared to a somatic cell which is called Haploid (n). When two haploid cell meets than diploid (2n) cell formed which further transforms into a zygote. So, the purpose of meiosis is the cross over which creates genetic variation among individuals and reduced the number of chromosomes into the half. Because if the number of chromosomes remains the same as (2n) and (2n) meets and becomes 4n. Which is the wrong pattern so nature keeps this balance in a unique manner that (n) and (n) meets and form (2n).

3 0
3 years ago
What is the difference between an exchange pool and a reservoir? What role do these areas play in the water cycle?
goldfiish [28.3K]

Answer:

EXCHANGE POOL is a part of the cycle that holds water for a short period of time. 

RESERVOIR POOL is a part of the cycle that holds water for a long period of time. 

So, the main difference is the period of time each one holds water during the water cycle. 

Explanation:

Water is recycled during the water cycle. Chemical elements and water that are important for an ecosystem and the animals living in it are CONSTANTLY being recycled.  For instance, chemicals might travel from organisms to the atmosphere or oceans and come back to the organisms again. But, it certainly happens that water is held for many years in different parts of the cycle. For example, the atmosphere plays the role of an exchange pool because it holds the water in the shape of vapor for just a few days. The ocean is a reservoir for water since it may hold water for thousands of years. The water cycle happens on, above and below earth surface, so the water cycle is a global cycle. 

7 0
3 years ago
HELP ME STAT DUE TODAY 3 questions for 15 points three questions science food chains and food webs
Lena [83]

Answer:

a: lion

b: decomposer....

Explanation:

hope it work

8 0
3 years ago
Read 2 more answers
Much important confirmatory evidence on the genetic code has come from assessing changes in the amino acid sequence of mutant pr
Reil [10]

Answer:

The correct answer is -

A. a, c, g

B. e, b, f & d

Explanation:

Part A- the options a, c, g are the options that show mutation or replacement by a single base change

a) Phenylalanine: UUU UUC

Leucine: UUA UUG

Only one base change

c) Alanine:  GCU  GCC  GCC GCG

   Thr:         ACU ACC ACA ACG

only one base change

g) Prolin:  CCU CCC  CCA  CCG

  Serine: UCU UCC  UCA UCG

Part B:

All other replacements will not be consistent with the Genetic Code if single base substitutions occur in option e, b, f & d

6 0
2 years ago
2.
puteri [66]
1.25 is closer to 1.04 or not ?
plz heelp plz
5 0
2 years ago
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