Answer:
mitosis -> cell differentiation -> stem cells
Explanation:
Zygote Definition: a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum.
Mitosis: a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
Cell Differentiation Definition: Cellular differentiation, or simply cell differentiation, is the process through which a cell undergoes changes in gene expression to become a more specific type of cell.
Stem Cell Definition: an undifferentiated cell of a multicellular organism which is capable of giving rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation.
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Since cell differentiation can not come before mitosis so the 2nd option is wrong. Stem cells can not turn into zygote cell option 1 is wrong. Cell differentiation would come before stem cells since stem cells are a final product, the 4th option is wrong. So I think option 3 is correct.
The correct option is C.
Living organisms that live in the littoral zones in the ocean are used to frequent changes in temperature and in the salinity of the ocean water. For an organism to survive in this environment, it needs to have adaptive features that will increase its survival. The littoral zone is divided into three zones, which are high, middle and lower littoral zones. Organisms living in high littoral zone have adaptive features that make them more adapted to desiccation due to the long hours of sunlight to which they are exposed. The organisms are usually exposed directly to the air or they can be enclosed in burrows.
Answer:
The answer is given below.
Explanation:
Rescorla explain this finding by stating that the tone experienced by the group of rats just before each of 20 shocks was a reliable predictor of the shock for the first group.
The psychologist Robert Rescorla stated in his famous classical conditioning experiment that 2 stimuli does not produce the same level and kind of conditioning. Conditioning works in a better way, if the conditioned stimulus will act as a reliable signal that projects the appearance of an unconditioned stimulus.
Geneticist is a scientist that studies dna