The process that makes it possible for major organs of the body to be formed by 10th week of human development is differentiation.
<u>Explanation:</u>
Human development is started off by the process of fertilization in which the sperm and ovum fuse to form zygote. In human beings fertilization takes place in the oviduct of the female. The zygote that is formed undergoes mitosis to form the embryo.
The embryo then gets embedded in the uterine walls. It continues dividing and differentiating into several organs. Almost all of the organs are formed by tenth week of pregnancy even though they aren’t fully developed.
The embryo has three layers namely ectoderm, mesoderm and endoderm. Ectoderm develops into outermost skin layer, central and peripheral nervous system, eyes and inner ears. Baby’s heart and circulatory system is formed from the mesoderm and the baby’s lungs and intestine develop from the innermost layer called endoderm.
Answer:
C
Explanation:
A Niche is the role an organism plays in its environment.
These cells have DNA in a region called the nucleoid.
-Some of these cells have structures like flagella and microvilli.
-These cells have cell walls made of polypeptides and polysaccharides.
Roots
moist
vegetative propagation
Seed texture was observed by Gregor Mendel.
<h3>Mendel Laws:</h3>
Mendel focused on pea plants because they had features that were simple to observe and could reproduce sexually. Gregor Mendel explains his research with peas that demonstrated how genetics is passed down into distinct components. People have long been aware of the similarities between parents and children, in both animal and plant families as well as in human families.
The segregation of the two alleles of a particular gene into the gametes is described by Mendel's first law. The independent distribution of alleles from various genes from one another during gamete development is described by Mendel's second law. According to Mendel's law of dominance, only one form of a trait will manifest in the offspring of two parents who have distinct, opposing qualities. The sole phenotypic trait that the hybrid offspring will display is the dominant trait.
Learn more about Mendel,s Law here:
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