Answer:
Embryonic period
Explanation:
The time period of the growth of the baby in the womb of the mother of human is 38 weeks or 9 months.
The time period of 38 weeks is divided into three phases related to the events taking place in that period which are: the germinal period, embryonic period and the fetal period.
- The germinal period lasts from the implantation to the gastrula phase during which the germ layer begins to form that is in the first and second week.
- The embryonic phase begins after the second week and lasts about the eighth week which is marked by the phase of embryonic and differentiation.
Therefore, in the fifth week she is in the embryonic phase of prenatal development.
Answer: B). Primary succession takes place over a long period of time on a newly formed land, while secondary succession occurs quickly in areas that have disrupted by a natural disaster.
Explanation:
A succession is a gradual change that occur within the biotic community due to change in the non-living environmental factors with respect to time until the community establish stability.
A primary succession occurs over a land which was not previously occupied by any living species. The land can be primitive, environmental factors like soil, air and others are not supportive initially. Thus, it takes long time to establish a biotic community.
A secondary succession occurs over a region which was previously inhabitated by colonies of species but disturbed due to natural calamity or human induced disaster. Some of the precursors of life can be found in such region like seeds, spores, roots and others which support new growth and the environmental factors are suitable to support re-establishment of living species. Hence, secondary succession takes place quickly as compared to primary succession.
A) Autotrophs because heterotrophs don't make their own food and rely on other organisms while autotrophs are organisms such as plants who use photosynthesis to make their own food.
Answer:
Explanation:
during crossing over the two non-sister chromatids change their segments
and it results in genetic recombination which causes difference between parents and their offspring
It would be a pain to write all out all the details, so this might help. There isn't that much reading involved. http://lsa.colorado.edu/essence/texts/lungs.html
