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zalisa [80]
3 years ago
10

Role of a student in protecting environment

Biology
1 answer:
MariettaO [177]3 years ago
8 0
Making sure there's minimal litter and pollution around our daily lives? :)
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Organisms are able to reproduce either sexually or asexually. Which of the following statements is true of these reproductive pr
alisha [4.7K]
The sorting of genes during sexual reproduction results in a large amount of genetic variation.because the primary advantage sexual reproduction has against asexual reproduction because of genetic diversity
B is the right option
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4 0
3 years ago
Organisms that swim freely and maneuver actively in the water column are called what?
ohaa [14]

Answer:

Zooplankton - Animals (mostly microscopic) which drift freely in the water column.

Explanation: Zooplankton, small floating or weakly swimming organisms that drift with water currents and, with phytoplankton, make up the planktonic food supply upon which almost all oceanic organisms are ultimately dependent.

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4 0
4 years ago
You are given a 1 liter bacterial culture in exponential stage of growth. The generation time of the bacteria is known to be 30
nydimaria [60]

Answer:

Option-A

Explanation:

A bacteria divides by binary fission which divides a parent bacteria into the two daughter cells and generation time refers to the average time difference between two consecutive generations.

The bacterial cell grows by the exponential function that is by 2^{number of generation} x initial population of bacteria.

In the given question,

<u>Initial population</u>

the initial population of bacteria - 2x 10³ per ml

So per liter, the bacterial population will be 2 x 10 ⁶

<u>Generation time</u>

1 generation time of bacteria is 30 min.

so 5 hours will have- <u> </u>\frac{300}{30}= 10 generations

<u>New bacterial population</u>

Using formula<u>  </u>2^{number of generation} x initial population of bacteria

2^{10} x (2 x 10⁶)

= 1048 x (2 x 10⁶)

2048 x 10⁶

Thus, Option-A is the correct answer.

4 0
3 years ago
The various parts of the endomembrane system serve different functions in the cell. in this activity, you will identify the role
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The endomembrane system is very important for synthesizing, processing, and movement of lipids and proteins in the cell.
The smooth ER function is mainly used for lipid synthesizing and processing, while the rough ER function is for protein synthesizing

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3 0
4 years ago
What is the active ingredient of aspirin that would provide clues about its classification by ph (acid, base, neutral)?
Dafna11 [192]
Salicilic acid c7h602 so it s an acid
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