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Alik [6]
3 years ago
13

What is a telomere? What happens to telomeres each time DNA is replicated? How do cells prevent this from occurring?

Biology
1 answer:
vredina [299]3 years ago
7 0
Telomeres are protective sequences of nucleotides found at the ends of chromosomes,Which become shorter every time a cell divides.
A gradual degeneration of an organism occurs, resulting in ageing.
However, some cells are able to replenish their telomeres using the enzyme telomerase. 
Hope this helps! :)
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When solving an equation using Boyle's law, which of the following steps do not apply? List your knowns and unknowns. Plug the k
cluponka [151]
Converting the temperature to Kelvin,
because Boyle's law is (Pressure 1) (Volume 1) = (Pressure 2) (Volume 2) and there's no need for temperature.
4 0
3 years ago
How many different ways does/could energy change form during its travels between the Sun and your stomach?
iris [78.8K]

Energy will take the path from sun to stomach as sun's energy to chemical energy followed by thermal and mechanical energy.

Explanation:

The energy of the sun is in the from of chemical energy which is the ultimate basis of life on earth . The process of photosynthesis occurs to form a chemical compound named glucose. The food ingested is in polymer complex forms as protein, carbohydrate, fats etc which is broken into monomers for absorption in intestine and stomach.

The dietary compound has energy stored in their bonds as chemical energy.

So, from sun human consume chemical energy which is stored in food.

The energy even if consumed by eating meat is also chemical energy which is stored as potential energy.

The breakdown of food or chemical energy into monomers leads to release of thermal energy or heat to maintain optimum body temperature.

Chemical energy also gets converted to mechanical energy which allows functioning of vital organs and movement of body.

6 0
3 years ago
3. What is the difference between cotyledons in dicot seeds and the endosperm in monocot seeds?
cupoosta [38]

Explanation:

Monocots contain a single cotyledon in their seed and dicots contain two cotyledons. The nutrients in the endosperm of dicots is absorbed by the two cotyledons. Therefore, a tiny endosperm is found inside the dicot seed. However, the main difference between cotyledon and endosperm is in their function during seedling.

7 0
3 years ago
What is the primary energy system to fuel cycling at 70% of VO2 Max for 15 minuets?
ANEK [815]
The primary energy system to fuel cycling for 15 minutes is THE AEROBIC GLYCOLYSIS SYSTEM.
There are different energy systems for fueling different types of physical exercise, the type of system that is used depend on the duration of the physical exercise. The energy system that exist are anaerobic glycolysis, aerobic glycolysis, phosphagem system and fatty acid oxidation. The aerobic glycolysis energy system relies on the complete breakdown of glucose. The pyruvate which is the end product of glucose oxidation is further broken down to acetyl coA, which then enters into the citric acid cycle. The aerobic glycolysis energy system is used for physical exercises that last between three to twenty minutes.
7 0
3 years ago
Why are marshes more productive than bogs
ivolga24 [154]

The acidity of the soil-peat inhabits diversity of plant species compared to marshes.

An important distinction to bogs would be that marsh soils are more typically neutral in the pH scale, to slightly more basic.

Hope this helps! If it does, please go to my page and say thanks! Thankyou!

--Emilie Xx

8 0
3 years ago
Read 2 more answers
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