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3 years ago

Which of these organisms would you find DNA molecules

Biology

1 answer:

Black_prince [1.1K]3 years ago

3 0

You would most likely to find DNA molecules in humans, butterflies and trees because they are all living things.

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A student runs 5 kilometers (km) each afternoon at a slow, leisurely pace. One day, she runs 2 km as fast as she can. Afterward,

natka813 [3]

Answer:

The correct answer is lactic acid.

Explanation:

Lactic acid comes from the breakdown of glucose when there is no oxygen present (glycolytic metabolism), that is, in an anaerobic exercise such as lifting weights or running at high speed, like our student in the question, where there is a lot of intensity and short duration. Under normal conditions that lactic acid and when we are trained it is reused and there is no problem.

But when we continue with intensity an exercise, lactic acid will begin to accumulate by not giving the body time to remove it. This causes high concentration of lactic acid in the muscle fibers, which has two important consequences:

1. The enzymes responsible for breaking the glucose molecule to obtain energy are inhibited, so the energy grind of this path is cut off and as we know, if there is no energy, there is no movement.

2. It prevents calcium from joining the muscle fibers and consequently from contraction. Therefore, when there is a lot of lactic acid in the body, we have neither energy nor capacity to contract the muscles, this is nothing but fatigue and the best we can do is stop the exercise or activity. That's our recommendation to our student after running 2 km as fast as she could.

8 0

3 years ago

In the late 1980s and early 1990s, the percentage of Icelandic children whose bacterial infections were caused by bacteria resis

Nadya [2.5K]

Answer:

The correct answer would be - "bacterial populations evolve in response to the selection pressure imposed by antibiotics".

Explanation:

The given information provided in the question about the bacterial infection supports the hypothesis that the bacterial population shows the evolution in response to the selection pressure caused by the antibiotics due to the fact that bacteria increased resistance gradually with time. This resistance towards antibiotics increased the percentage of bacterially infected children in the late 1980s and early 1990s.

In this case, the population of bacteria having resistance genes is selected to evolved selected to increase their offsprings.

5 0

3 years ago

4. Describe the endosymbiotic theory and what it means to the evolution of eukaryotic organisms.

VladimirAG [237]

Answer:

it explains how eukaryotes came from ancestral prokaryotes.

it theorizes that some organelles (mitochondria and chloroplasts), evolved from free-living prokaryotes that were overtaken and subsequently became obligate endosymbionants.

Explanation:

6 0

3 years ago

Hat percent of electricity in the UK will come from renewable sources by 2010? a. 1% c. 10% b. 5% d. 40%

Snowcat [4.5K]

Answer:

C, 10%

Explanation:

For the year of 2010, it's definitely 10%

7 0

3 years ago

PLZ HELP ME I NEED HELP AS FAST AS I CAN !!!!!!!!!!!

netineya [11]

Answer:

Explanation:

If clear winged ones reproduce quicker there will be more of them overtime as there is more offspring

5 0

3 years ago

Read 2 more answers