Answer:
Meiosis is a type of cell division in which gametes are formed and number of chromosome is reduce i. e. from double to half.
Explanation:
Meiosis cell division only occurs in sex cells of male and female. In meiosis, the parent cell that is diploid i. e. double number of chromosomes, is divided into four daughter cells having half number of chromosome each i. e. haploid or monoploid. These cells are responsible for the variation that occurs in the living organisms.
Answer:
The correct answer is "soft rock erodes."
Explanation:
Waterfalls form as streams flow from soft rock to hard rock. This happens as a stream flows across the earth and as the stream drops in a waterfall. In both cases, the soft rock erodes, leaving a hard ledge over which the stream falls.
D. The mutation will be expressed only if the individual has two copies of the recessive allele.
Answer:
A) Spore capsules
Explanation:
Ferns produce spore capsules contained in the sporangium (plural: sporangia), a structure localized on the undersides of the leaves. Moreover, the sporangia are borne in clusters known as sori (singular sorus). The spores are single reproductive cells that, when mature, are released from the sporangium to germinate on soil and produce new ferns. In a fern sporangium, the maximum number of spores is 64, although this number depends on the species.
Answer:
The surface layer of the water freezes solid creating a barrier that insulates the ice below so that it keeps a steady temperature usually a few degrees above freezing (32 degrees).
Explanation:
