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3 years ago

Someone please help i’ll give brainliest.

Biology

2 answers:

Vera_Pavlovna [14]3 years ago

7 0

They provide energy

Explanation:

Pie3 years ago

5 0

Yeah they provide energy to the cell

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Alexander Litvinenko was poisoned with 10 micrograms of the radioactive substance Polonium-210. Since radioactive decay follows

irina [24]

Answer:

Left amount of Polonium-210 after 115 days will be 4.5927 microgram

Explanation:

We have given initial mass of Polonium-210 $N_0=10microgram$

Decay rate x= 0.502% = 0.00502

Time t = 115 days

We have to find the left amount of Polonium -210 after 115 days

We know that left amount is given by

$N=N_0e^{-xt}=10e^{-0.00502\times 115}=4.5927microgram$

So left amount of Polonium-210 after 115 days will be 4.5927 microgram

7 0

3 years ago

Single-celled algae and multicellular plants

OlgaM077 [116]

Answer:

<em>The correct option is A) make food.</em>

Explanation:

Photosynthesis can be described as a process by which organisms like plant and some algae make their own food. They use light energy from the sun to convert carbon dioxide and water into glucose and oxygen. Oxygen is the by- product of this reaction. Hence, option A is correct.

Other options are wrong because photosynthesis is not a process by which energy can be extracted from food or it is not a process by which excretion of waste occurs. Neither is it a process of reproduction.

4 0

3 years ago

There is a population of moths that have a variety of colors in the same population.

Kobotan [32]

Answer:

Explanation:

It is variation because not all individuals are the same, and this may be due to the genetics they have

8 0

3 years ago

Where sperm cells mature and are stored

Stolb23 [73]

Sperm cells are stored an matured in the Epididymis

6 0

3 years ago

7. a) How does adaptation affect the diversity of a species?

Tems11 [23]

Explanation:

Adaptations generally occur in order to increase the fitness and thus survival of organisms. By being able to adapt to the changing environment, organisms are better able to survive and reproduce. ... Many people are under the impression that species require thousands or even millions of years to adapt.

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4 0

3 years ago

Read 2 more answers