I believe the answer is minerals.
Minerals are inorganic substances that the body cannot manufacture but that act as catalysts, regulating many vital body processes. Nutrients are substances in food that the body needs to function properly to grow, repair, and supply it with energy. These includes, carbohydrates, proteins, lipids, vitamins and minerals.
The falciform ligament separates the<u> a. right and left lobes of the liver.</u>
Explanation:
- The falciform ligament is a ligament that attaches the liver to the front body wall, and separates the liver into the left medial lobe and left lateral lobe.
- The falciform ligament is a broad and thin peritoneal ligament. It is sickle shaped and a remnant of the ventral mesentery of the fetus.
- The falciform ligament droops down from the hilum of the liver.
- It contains between its layers a small but variable amount of fat and its free edge contains the obliterated umbilical vein and if present, the falciform artery and paraumbilical veins.
- The falciform ligament divides the left and right subphrenic compartments but may still allow passage of fluid from one to the other.
- The falciform ligament stretches obliquely from the front to the back of the abdomen, with one surface in contact with the peritoneum behind the right rectus abdominis muscle and the diaphragm, and the other in contact with the left lobe of the liver.
Answer:
Genotypic ratio of offsprings will be: 1 (Hh) : 1 (hh)
Explanation:
This question involves a single gene coding for the possession or not of Hitchhiker's thumb in humans. The allele that codes for Hitchhiker's thumb (H) is dominant over the allele for no hitchhiker's thumb (h).
Based on this question, if woman who does not have hitchhiker's thumb (hh) marries a man who is heterozygous for hitchhiker's thumb (Hh) i.e. hh × Hh, the following gametes will be produced by each parent:
hh - h and h
Hh - H and h
Using these gametes in a punnet square (see attached image), the offsprings with the following genotypic ratio will be likely produced:
1 (Hh) : 1 (hh)
N.B:
- Two (2) of them were Hh i.e. with Hitchhiker's thumb
- The other two were hh i.e. no hitchhiker's thumb.
Answer: d. Extracellular matrix was discovered more than 20 years ago.
Explanation:
According to biological sciences, the extracellular matrix is a matrix that consists of three dimensional network of extracellular macromolecules such as enzymes, collagen and glycoproteins which provide structural and biological support for surrounding cells as well.
It is found that it is discovered over 20 years ago in the matrix formed in the mouse EHS sarcoma. Therefore, correct answer is (d).
