Answer:
I) Sexual reproduction
II) Mutation
Explanation:
Variations refer to the difference observed within organisms of the same species. Variation are introduced into a population by:
- new genetic combinations that occur during sexual reproduction (i.e during meiosis)
- mutations, spontaneous changes that occur in genes and chromosomes.
Answer:
um you don't have the answer to choose from so I looked up on the web and its says ( migrants are more prepared to take on low-paid low-skilled jobs - helps to reduce any labor shortages) I'm pretty sure this didn't help but I hope it did
Carbohydrates provide structural support, in the form of cellulose in cell walls, for plants in addition to providing energy for the organism
Proteins are essential for muscle tissue's growth and development as well as, in the form of hormones and hormonal regulation, maintaining an organism's homeostasis.
Lipids make up the bilayer of cell membranes, and also aid hormonal signaling.
Nucleic acids store genetic information, and allow for ribosomal protein synthesis.
Answer:
Prenatal.
Explanation:
The sexual reproduction may be defined the process of fusion of the male sperm and female ovum that leads to the formation of the zygote. Zygote is diploid in nature.
The prenatal development includes all the stages that are involved in the development of the single cell till the completion of the nine months of the fetus. The development of all organs and the process of the cell specification all occurs in the prenatal development stage.
Thus, the answer is prenatal.
