PHYSIOLOGY
REPRODUCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
When a paramecium, a single-celled organism, is living under stressful conditions, it sometimes switches from asexual to sexual reproduction. The main advantage when this switch occurs is that the paramecium is most likely to:(1) (2) (3) (4)
|
|
produce clones of itself
|
|
|
avoid having to find a mate
|
|
|
increase variation among its offspring
|
|
|
produce fewer offspring.
|
Explanation:
Detailed explanation-1: -For most of their life cycle, paramecia reproduce asexually, with each cell splitting into two. When a cell reaches sexual maturity however, each paramecium may produce two identical sexual nuclei-similar to the nuclei that are present in sperm and egg cells.
Detailed explanation-2: -More variations are found in sexual reproduction. Survival of a species in a population is easy. Offspring has characteristics of both parents. It can lead to the formation of new species. The chances of evolution increase.
There is 1 question to complete.