Parietal cells produce intrinsic factor, which is important for the absorption of vitamin B12.
The correct answer to the given question is option A.
Intrinsic factor is a protein produced by parietal cells in the stomach.
It plays a crucial role in the absorption of vitamin B12 in the small intestine. Without intrinsic factor, vitamin B12 cannot be absorbed and can lead to a condition called pernicious anemia.
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the BMI should be 20.8
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(B) only recessive traits are involved.
(C) only dominant traits are involved.
(D) alleles segregate during meiosis.
(E) crossing over has occurred in Anaphase II.
B) It contains a methyl group bonded to a positively charged sulfur atom.
C) It contains a methyl ether.
D) it contains a methyl group bonded to an aromatic ring.
E)It contains a Br bonded to a phosphorus atom.
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.
Answer:
Ribosome
Explanation:
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Answer;
-the continental shelf, slope, and trenches;
The continental shelf, slope, and trenches are the structures on the ocean that are equivalent to the mountains on land.
Explanation;
-Continental shelf is that shallow part of the ocean floor that begins at the shoreline and gently slopes underwater to an average depth of about 430 feet. It is normally covered with thick layers of sediment.
-Continental slope begins at the edge of the continental shelf and plunges down to depths of over two miles and are covered with thick layers of sand, mud and continental shelf.
-Ocean trenches are very deep and similar to canyons on land.