Answer:
b) In nature, only embryonic stem cells give rise to all the different types of cells in the organism.
Explanation:
Embryonic stem cells are special type of cells formed in the embryonic stage of the life cycle of a living organism. Embryonic stem cells are capable of differentiating into every other type of cells that exists in an organism. Besides the embryonic stem cells, other types of stem cells exist, one of which is the adult stem cell.
The adult stem cell is a type of stem cell found in the tissues of adult organisms as opposed to those found in the embryo. One substantial difference between the embryonic and adult stem cells is that the embryonic stem cells are the only type of stem cells capable of giving rise to all the different types of cells in an organism i.e. embryonic stem cells are capable of differentiation while adult stem cells are not.
The 3 letter sequence of DNA or messenger RNA code that stands for one amino acid in a protein is called Codon
Answer: d. All of the above are correct.
Explanation: Natural resources are resources provided by nature. They occur in nature without manmade interference. Natural resources include mineral deposits, land water bodies and the atmosphere. These resources are utilized by man for economic, social and educational purposes. Natural resources can be renewable or nonrenewable resources such as water are renewed by rainfall. Heavy manmade activities such as industrialization, war or natural disasters can deplete these resources.
Human anatomy deals with the study of the human body, its structures, and how these structures specifically function. Microscopic anatomy on the other hand deals with structures found within the body that cannot be seen by the naked eye but can be viewed with the use of the microscopic. Microscopic anatomy deals with the study of the smallest structures of the cells, tissues, and organs of the body.