Models are simplified representations of of different complex systems. They also help to study very small or large objects.
Option B, D and E.
Explanation:
Models are very simplified representations of complex systems and organs or structures which are prepared to study those systems by scientists and normal people easily. Many structures of human body like cells or some tissues are very small in structure or microscopic in nature. So studying them are very hard without specific instruments which are not always available. Thus models are made to easily study those structures by scientists and even normal people and students.
There are many different factors, but some are: the amount of natural resources (food, water, etc.), amount of predator/prey, and availability of shelter.
Answer: Option D
Explanation:
If a DNA sequence is altered from TAGCTGA to TAGTGA, the kind of mutation that has occurred is DELETION.
Deletion is a kind of small-scale mutation in which one or more nucleotides is removed from the DNA. This mutation can alter the reading frame of the gene, and it is irreversible.
A complementary process in nature either adds (options 3, 6, and 7) or removes ( options 4 and 5) carbon dioxide from the atmosphere.
<h3>Complementary processes and it's benefits</h3>
The processes that leads to the addition of carbondioxide back to the atmosphere include the following:
- The eruption of volcanoes.
- Cellular respiration carried out by organisms to release energy from food molecules.
- The use of gasoline to power cars
The processes that leads to the removal of carbondioxide from the atmosphere include:
- The production of energy-rich carbon compounds through photosynthesis.
- The dissolution of carbondioxide in rainwater.
Learn more about photosynthesis here:
brainly.com/question/19160081
At the smallest level of organization, the DNA wraps itself around small globular proteins called histones. Complexes of histones and DNA form nucleosomes, which appear as "beads" on the DNA strand. Chromatin refers to the decondensed DNA that has not formed separate chromosomes.
