Answer:
Option A, The endometrium thickens in response to increased estrogen
Explanation:
During the proliferative phase of the menstrual cycle, the following events occurs
a) Development of follicles inside the ovaries
b) Follice mature for ovulation.
c) Levels of FSH increase
d) The uterus prepares itself for implantation.
The mature follice releases estrogen that causes the growth of glands along with thickening of endometrium thereby thickening the uterine lining
Hence, option A is correct
Answer: The newly found orchid species is Dioecious
Explanation:
Definitely, the new orchid species has female and male reproductive organs on the different plants (though of same species), thus the MALE wasps are attracted to it in order to aid POLLINATION by:
- transferring the already collected pollen grains collected from the anther of its male reproductive organs on another plant of the same species located in a different location.
A hypothesis is an expectation of what you are going to investigate. So B and D are canceled C has nothing to do with climate So the only remaining answer is A
The answer for this question is letter D. The nucleic acid of a virus contains only wither deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) but not both. It is surrounded by a protein coat. The nucleic acid contains the genetic information of the virus.
Answer and explanation;
-The Kaibab Squirrel gives us one nice example of evolution occurring due to geographic isolation.
-About 10,000 years ago when the last ice age ended, physical formations in the canyon changed in a way that blocked the squirrels access to the Colorado River. The canyon became a geographic barrier separating the forests and squirrels on each rim. One population of squirrels had become two separate populations that could no longer interbreed, the kaibab squirrels. Abert’s squirrels are a North American species, found across a range of locations. Kaibab squirrels are a subspecies of Abert’s squirrels, found only in one area in the United States.
-Both the Kaibab squirrel and the Abert’s squirrel live in the ponderosa pine forests, where they build their nests out of twigs and pine needles. They eat acorns, fruit, and fungi, as well as the seeds, bark, and twigs of the trees where they make their home. The Kaibab squirrel's most significant source of food is the seeds found within ponderosa pine cones.