Reproduction is the biological process by which new organisms known as the offsprings are produced by their parents. It is of two types: Sexual reproduction and Asexual reproduction. The difference between the two types lies in the number of parents required for both. In Sexual reproduction, two parents are required to give rise to the offspring. In asexual reproduction, a single parent can give rise to the offspring. Asexual reproduction is commonly seen in plants but is less common in the animal kingdom.
The advantages of sexual reproduction:
produces genetic variation in the offspring
the species can adapt to new environments due to variation, which gives them a survival advantage
a disease is less likely to affect all the individuals in a population
In asexual reproduction there is only one parent. The offspring are clones of the parent and each other.
The advantages of asexual reproduction include:
the population can increase rapidly when the conditions are favourable
only one parent is needed
it is more time and energy efficient as you don't need a mate
it is faster than sexual reproduction
The disadvantages of sexual reproduction:
time and energy are needed to find a mate
it is not possible for an isolated individual to reproduce
The disadvantages of asexual reproduction include:
CONCLUSION:
it does not lead to genetic variation in a population
the species may only be suited to one habitat
disease may affect all the individuals in a population.
(HOPE THIS HELPS)
Answer:
B. Fish kills, because of the lowered dissolved oxygen in the water
Explanation:
Eutrophication refers to the algal bloom as caused by increased levels of nutrients in water bodies. The algal population uses the dissolved oxygen and makes it unavailable or scarce for animals such as fishes present in the water bodies. The scarcity of oxygen leads to the death of fishes in a eutrophic water body.
1. <span>Any of a group of RNA viruses whose RNA is used as a template inside a host cell for the formation of DNA by </span>means<span> of the enzyme reverse transcriptase. The DNA thus formed is inserted into the host cell's genome. Most </span>retroviruses<span> can cause cancer. </span>Retroviruses<span> also include HIV.
2. </span>Prokaryotes<span> are 1-celled organisms that </span>do<span> not have a nucleus or any other membrane-bound organelles inside them. The name </span>prokaryote<span> itself actually lets you know that there isn't a nucleus, since pro </span>means <span>before and karyo refers to nucleus.
3. </span>Antibiotic resistance<span> occurs when </span>bacteria<span> change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. The </span>bacteria<span> survive and continue to multiply causing more harm. </span>Bacteria<span> can </span>do<span> this through several mechanisms.</span>
