Galaxy, solar system, star, planet, moon
Answer:
The photosynthesis chemical reaction looks like this:
6 CO₂ + 6 H₂O --> C₆H₁₂O₆ + 6 O₂
The cellular respiration chemical reaction looks like this:
C₆H₁₂O₆ + 6 O₂ --> 6 CO₂ + 6 H₂O
As you can see, the processes involve the same substances. However, the reactants and the products are switched. The reactants for photosynthesis are the products for cellular respiration, and vice versa. For example, the products of photosynthesis are glucose (C₆H₁₂O₆) and oxygen. On the other hand, these are the reactants necessary for cellular respiration.
The sequence of passage of air during inhalation:
pharynx
larynx
trachea
bronchi
alveoli
(there are actually a few more steps to this question, but these are what the question lists)
hope this helps!!
Answer: a. Genetic recombination (crossing over)
b. Can also be explained in terms of crossing over
c. Non disjunction of homologous chromosomes in meiosis 1
Explanation:
The process that allows for the transfer of both the paternal and maternal materials to is the crossing over process that takes at meiosis 1 changing them to secondary spermatocytes. While they are still primary spermatocytes, they are still diploid cells having both the maternal and paternal chromosomes. But since the spermatozoon is an haploid cell, it is able to retail some of both parents chromosome by the crossing over event which takes place between homologous paternal and maternal chromosomes allowing them to exchange materials. Thus the chromosomal contents of the primary spermatocyte differs from that of the spermatozoon.
C. This can occur as a result of the one of the homologous chromosome pair refusing to separate at meiosis 1 with one gamete containing 4 chromosomes/8 sister chromatids and the second having 2 chromosomes/4 sister chromatids.
