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UkoKoshka [18]
3 years ago
9

Once a true cell was formed, biological evolution began. biological evolution is all the changes that have occurred in living th

ings since the beginning of life due to differential reproductive success
Biology
1 answer:
Over [174]3 years ago
3 0

Hello there
The answer is Living things have all evolved from a common ancestor.


Hope this helps
Best Regards Queen Z

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Which renewable resource is not safe for the environment and why?
Karo-lina-s [1.5K]

Answer: Biomass

Biomass produces gas or many sorts of waste products which are mostly used in burning and cooking. It is plant or animal material used as fuel to produce electricity or heat. Examples are wood, energy crops, and waste from forests, yards, or farms.

But the reason why it can be harmful is because biomass can produce gases like methane. Methane is a  greenhouse gas which can harm the environment and reduce the ozone layer that stops harmful UV light from reaching the earth atmosphere.

8 0
2 years ago
Carrying capacity is _____________ and represented by letter ____ on the graph.
pshichka [43]
C is the right answer
7 0
3 years ago
Starch, cellulose, dextran, and glycogen are polysaccharides. How are they similar? To what are their different properties due?
daser333 [38]

Answer:

similarity

Starch, cellulose,dextran and glycogen are all polymers of glucose

differences

                monomer/glucose     glycosidic bond    branching

1.starch              α glucose          1-4 and 1-6               branch and unbranced

  amylose                                       1-4                          unbranched

  amylopectin                               1-4 and 1-6              branched

2. dextran          α glucose          1-6                           branched

3. cellulose        β glucose           1-4                          unbranched, linear        

4. glycogen       α glucose           1-4 and 1-6              branched (shorter

                                                                                     branches than starch)

Enzyme: amlase acts on starch and cellulase acts on cellulose as they are specific for their substrates.

Explanation:

Starch: Consists of both branched amylopectin and unbranched amylose

Enzymes: Enzymes are specific as the gulcose molecule in starch is α and in cellulose is β which differ in their position of hydroxyl groups at anomeric carbon, their structures differ so they form different bonds. Active sites of enzymes can act only on specific bonds a sthey can fit to their specific substrates.

3 0
3 years ago
In the case of sickle cell anemia, what happens to the gene? To the protein?
kari74 [83]

From what i know, in sickle cell anemia the blood is lack of oxygen.

The haemoglobin run from the blood cell because reacted with nitric oxide, and so thats why the shape of the blood change into sickle-shaped like.

5 0
2 years ago
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Now leave the paper in the container overnight. In the morning, look at the paper and write down your observations.
Goshia [24]

Answer:

Explanation:

Now leave the paper in the container overnight. In the morning, look at the paper and write down your observations.

what am i supposed to do????

8 0
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