The release of calcium ions initiates muscle contractions. ... The contraction of a striated muscle fiber occurs as the sarcomeres, linearly arranged within myofibrils, shorten as myosin heads pull on the actin filaments.
The complete question is attached as an image with the evolutionary tree:
Answer:
The correct answer is option D. Gibbon, orangutan, common Chimpanzee, bonobo, And Human.
Explanation:
The arboreal life of primates is possible by adapting from the tree-dwellers. Therefore the tree-dwellers are ancestors of all primates. The adaptation primates developed and exhibits are such as thumb for grasping, separated big toes, rotating shoulder joint and stereoscopic vision.
Stereoscopic vision is to provides better vision to have a better view and sharp vision to see an object from distance and moving through trees. It is present in almost all including Gibbon, orangutan, common Chimpanzee, bonobo, And Human.
Some of the causes which might lead to fetus death at four months of gestation include;
1. Poorly controlled maternal conditions, for example, hypertension or diabetes.
2.Eclampsia of pregnancy
3. Trauma.
4. Lupus
5. Physical problem with the uterus.
6. Uterine infection.
7.Fetal abnormalities
8. use of illicit drugs, for example, cocaine.
Answer:
I believe the answer is A
Explanation:
Answer:
Option (I) and (IV).
Explanation:
Fatty acids may be defined as the carboxylic acid that contains the long aliphatic chain. Fats are generally of two types - saturated fatty acid and unsaturated fatty acid.
The fatty acids are generally synthesized in the two carbon units. This helps in the proper synthesis of fat. The fatty acids that are most common in plants and animals are palmittic acid or the fats that contain C16 and C18 species predominate.
Thus, the correct answer is option (I) and (IV).