carbonic acid freezing on rocks
b.
water and oxygen reacting
c.
water freezing and thawing
d.
rocks colliding with each other
Answer:
c. water freezing and thawing
Explanation:
Ice wedging is formed during the coldest days of the year, when we have winter, the water that reach the soil, starts to freeze. The water is a strange molecule, when is cold, and turns into a solid, we can observe that the volume increases, that is reason that the soil can split with an ice wedging.
B) the parents and the child have identical nuclei.
C) the child inherited chromosomes from both parents. D) the child inherited more chromosome from the father.
Answer: The correct answer is -
C) the child inherited chromosomes from both parents.
The child inherits 50% of the chromosomes from his father and other 50% from his mother (through fusion of male and female gametes that are sperm and egg respectively).
Due to this, child exhibits some of the paternal traits and some of the maternal traits. As per the given information in this question, mother is short with black hair and father is tall with red hair. The child produced is tall with black hairs. This also suggests that tall height and black hair are dominant traits (depicted by dominant gene variant) that suprress the expression of recessive trait (depicted by recessive gene variant), which are short height and red hairs.
13. The gametophyte produces
haploid.
Answer:
gametophyte is a diploid phase.
Explanation:
2 zygotene
3 pachytene
4 diplotene
3 pachytene is the answer here cause that is where there is exchange of genetic material