Answer:
The changes in the frequencies of blue and green eye alleles can not be predicted since genetic drift is a random event.
Explanation:
Genetic drift is the change in the allele frequencies of a population caused by some chance event. The effect of genetic drift is more pronounced in smaller populations since random events cause changes of greater magnitude in a small population. It can cause the complete loss of an allele from a small population.
According to the given information, the frequencies of alleles for green and blue eyes are changed by genetic drift which in turn would produce random evolutionary changes Either of the alleles may be eliminated from the population irrespective of the fact that the allele is beneficial or harmful. Thus, genetic drift would change the frequencies of the allele in an unpredictable manner.
Answer: it is community
Explanation: got it right I promise
The species of fish in the Monterey Bay aquarium represent the community ecological level.
All of the different species of fish in the Monterey Bay aquarium represent the community ecological level. In ecology, the community level refers to all the organisms of different species that interact with one another in a specific area. The Monterey Bay aquarium contains a diverse community of fish species, each occupying different ecological niches and contributing to the overall functioning of the ecosystem.
#SPJ3
Answer:
Option). 4-5 days.
Explanation:
Morula is a 4-5 days stage of early embryonic development. It represents a solid ball, having 16 cells, known as blastomeres. In human embryo, differentiation begins with morula stage, along with cleavage to form trophoblast (an outer layers of cell) and inner cell mass.
During development, trophoblast forms embryonic part of placenta and inner cell mass form respective structures of embryo.
Thus, the correct answer is option).4-5 days.
Answer:
Day 4-5
Explanation:
The first cell differentiation occurs when the embryo reaches approximately five days after fertilization, forming the blastocyst.
In this case, the cells on the outside undergo the process of differentiation and become responsible for the formation of embryonic attachments (structures that derive from the embryo's germ leaflets but are not part of the embryo's body, such as the amnion).
In the meantime, those cells that remained inside, also undergoing the process of differentiation, become pluripotent stem cells, which are responsible and capable of forming all tissues.
Previously, when they are still undergoing the process of dividing up to 8 cells, each cell is capable of forming a complete being when inserted into an egg.
By going through the whole process and becoming pluripotent stem cells, they can form all kinds of body tissues, butno longer a complete being.
when populations become separated from one another
B.
when one population becomes extinct
C.
when one population cannot interbreed with the other population
D.
when populations compete for the same resources
hypothalamus
cerebellum
cerebrum
Answer:
the hypothalamus
Explanation:
(1) require the Sun as a direct source of energy
(2) result in the production of glucose molecules
(3) require specific catalysts
(4) occur within mitochondria
Formal
Informal
Instrumental