Answer:
Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lack soil.
Secondary succession is one of the two types of ecological succession of a plant's life. It is the process started by an event (e.g. forest fire, harvesting, hurricane, etc.) that reduces an already established ecosystem (e.g. a forest or a wheat field) to a smaller population of species, and as such secondary succession occurs on preexisting soil whereas primary succession usually occurs in a place lacking soil.
Explanation:
Primary succession takes time for completion around 1000 years, whereas secondary succession area takes 200 years for completion. In primary succession, there is a lack of soil and humus for the sustaining of life whereas, in secondary succession, soil and humus are present with some organisms.
A Secondary succession can take a few hundred years.
the <em>wavele</em><em>ngth</em> of light determines the color
Answer:
to circulate blood and oxygen throughout the body
Explanation:
air moves in and out the lungs through the trachea, bronchi, and bronchioles. blood moved in and out the lungs through the pulmonary arteries and veins that connect to the heart
Answer: Direct repair
Explanation:
The direct repair of the thymine dimer occurs through the process known as Photoreactivation in the presence of the visible light.
An enzyme known as photolyase recognizes the distortion that is present in the DNA helix, caused by thymine dimer.
This is a type of DNA repair mechanism which is used repair thymine.
The sun please make me the brainliest answer <3
