Answer:
This is for the offspring to show traits that come from both the mother and father.
Explanation:
Gametes are formed by a kind of cell division called meiosis in which the chromosome number is halved. Thus the said gamete cell is said to contain a haploid number of chromosomes.
The fusion of two haploid gametes is called fertilization. It results in the formation of single celled zygote which has a diploid number of chromosomes. The zygote now divides and develops to produce the offsprings whose somatic cells are diploid.
Answer:
extension- increasing the angle between two boned of the straightening of a limb.
Im sorry I only know the first one. :( Wish I could help 100%
1.) - plasma
2.) - bone marrow.
3.) - cells
4.) hemoglobin
5.) capillary
6.) ventricle
7.) pulse
Answer:
The conditions for natural selection are:
- overproduction of offspring
- variation among organisms in a population
- favorable adaptations selected by nature
Explanation:
- Natural selection is the continuous process of reproduction and survival that is caused by the contrast and differences due to phenotype.
- Overproduction of species creates the competition and only the one survived through the natural selection grows to the next generation.
- Similarly variations in the phenotypic organization of species, their adaptation process etc causes the natural selection.
- Natural selection is the gateway for the evolution.
