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.
<span>This process is called the mitotic spindle
which begins to develop during the prophase. The reason why chromosomes must
line up on the cell equator before cell division is “<span>to enable the microtubules to attach to the
kinetochores properly”. The microtubules then form the network that will
later pull the duplicated chromosomes separately.
Answer: </span></span>to enable the microtubules to attach to the kinetochores properly
Answer:
This is called "overproduction" Populations must have "predation" nature selects favorable "Adaptations" Over time these build up in a "population"
Explanation:
i think this is it. im not sure, but i hope this helps
Answer:
1:(D), 2:(D), 3:(D)
Explanation:
1) When a rock is exposed to heat and pressure, it becomes a metamorphic rock. This is correct, because this is the process that forms a metamorphic rock.
2) A rock becomes sediment through weathering and erosion. In this question, they are not asking you to explain the process of sedimentary rock formation, they are asking you how a rock becomes sediment. The process of weathering and erosion breaks down a rock, and turns that rock into smaller peices, which therefore, through the process of compaction and cementation forms a sedimentary rock.
3) A fern is a land plant. It is not found in the sea and there is not enough information given to tell whether or not the area was hot or cold. This leaves us with D. We can tell that this fossil is a land fossil because ferns do not grow in the ocean.
Hope I could help, and best of luck!
- Cat :')
Genetic variation is a prerequisite for evolution because natural selection relies upon lessening the frequency of alleles in a population therefore there must be variance in the gene pool
