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Murljashka [212]
4 years ago
11

Please help or I’ll get a bad grade.

Biology
2 answers:
Viefleur [7K]4 years ago
8 0

Answer:

b

Explanation:

EastWind [94]4 years ago
6 0

Answer:

<u>its A or D :)</u>

Explanation:

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Who are the three main groups involved in natural resources and what are their roles?
Flauer [41]

Biotic natural resources also include fossil fuels such as coal and petroleum which are formed from organic matter that has decayed. Abiotic: these resources come from non-living and non-organic material. Examples of these resources include land, fresh water, air, and heavy metals (gold, iron, copper, silver, etc.).

8 0
4 years ago
What are some of the systems in our bodies?​
Darya [45]
Nervous system
Circulatory system
Cardiovascular system
5 0
3 years ago
DNA samples from four different organism were analyzed using a procedure that seperares the DNA in each sample by size. What pro
jonny [76]

Answer:

Gel Electrophoresis.

I took the Khan academy test :)

7 0
3 years ago
HELP ASAP!!!
ICE Princess25 [194]

Q: 5: Which of the following best describes anabolic reactions?

Answer:

Energy-storing reactions which link simple molecules together to make complex ones

Explanation:

Anabolism or anabolic reactions comprise the process during which simpler molecules are joined or linked to form  complex compounds. These reaction require the input of energy but ultimately that energy is stored in complex molecules for later use.

Organisms employ the reactions which absorb the energy in several reactions. and this absorbed energy is then stored for later use to perform various activities of the body.

For example: Photosynthesis is the common example during which energy from the sun is used to create sugar based molecules like sucrose and glucose. The formation of glucose is an anabolic process because it makes complex compound from simple compounds and stores energy in them which is later used to by plants to perform daily activities and work.

------------------------------------------------------------------------------------------------------------

Q: 18: What are the folds of the inner membrane of mitochondria?

Answer:

Cristae

Explanation:

Cristea are the fodings present in  inner mitochondrial membrane . The reason why there are called cristae came from  Latin word crest that means wrinkled or irregular shape in a way that increases the surface area of the object.

If we look at cristea in mitochondria , its purpose is same, to provide a huge amount of surface area for the diverse types of reactions of cellular respiration that takes place in the inner mitochondrial membrane.

These folds not only enhance surface area but also support aerobic cellular respiration in a number of ways.  there are large amount of proteins studded in cristaea like cytochromes and ATP synthases  that make sure an efficient execution of the process of cellular respiration.

------------------------------------------------------------------------------------------------------------

Q 13: Which statement correctly describe one similarity between cellular respiration and photosynthesis?

Answer:

Cellular respiration and photosynthesis both have water and carbon dioxide in the reactions

Explanation:

If we talk about the processes of photosynthesis and Cellular respiration  both are almost exact opposite in nature. The products of cellular respiration are the reactants of photosynthesis and vice versa.

The sunlight in mandatory for the execution of photosynthesis however, cellular respiration depends on the supply of glucose and ultimate three phases (glycolysis, kreb cycle and electron transport chain) to transform the glucose in the usable energy reservoir ATP.

But still, when we look at the equations of cellular respiration and photosynthesis, we see something is common. And what is that common thing is,  Cellular respiration and photosynthesis both have water and carbon dioxide in the reactions . (please see attached figure).

In cellular respiration, water and carbon dioxide are the products along with energy, while in photosynthesis water and carbon dioxide are the reactants.


Hope it helps!

7 0
4 years ago
This is the cycling of nutrients among soil, litter,plant roots, and above-ground plant parts.
kifflom [539]

Answer:

Internal Cycling

Explanation:

Internal cycling starts when the nutrients transform into ecosystems. The plants through their roots take the necessary ingredients and built them in the tissues. When tissues grow, the nutrients go back to the ground in the form of dead organic matter.

Microbes transform the organic nutrients into minerals, which are again available to the plants.

4 0
3 years ago
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