Explanation:
Cancer occurs in dividing cells only because genetic materials divide into two equal portions during division. This process may be interrupted by carcinogenes or mutagenes to make mutate cells and then render them as cancer cells. In the brain, the cells are differentiated and there is no chance to start division, then how can cancer be found in the brain.
The over-harvesting is one of the biggest threats to endangered species.
<u>Option: B</u>
<u>Explanation:</u>
- An organism or group of organism or species that is expected to reach extinction in the immediate future, either internationally or under a limited political authority, is understood as an endangered species.
- This may be at threat because of factors including habitat loss and poaching or over-exploitation.
- There are many species which are getting vanished day by day due to pollution or poaching, for an instance, pangolins, who have been hunted beyond he limits for their skin, scales, meat, and some body parts are utilized by people in making traditional medicine.
- The Indian and Philippine pangolin are listed as endangered while the Sunda and the Chinese pangolin are rated as critically endangered by the IUCN, which contributed to the Convention on International Trade in Endangered Species (CITES) prohibiting global trade that had something to do with pangolins or their components.
The genotype for a hybrid yellow seed is Yy.
Y= yellow (dominant)
y= green (recessive)
When you cross the two together, the offspring is a hybrid that is also an yellow seed.
hopefully this helps.
Both mitosis and meiosis are a cell division process having various similarities and differences.
Similarities between the process of mitosis and meiosis include:
- Both the processes are cell division process.
- Both the processes occur in the nucleus of a cell.
- Both the processes result in the formation of daughter cells.
- The main phases are the same in both the processes
The differences between mitosis and meiosis include:
- As a result of mitosis, two daughter cells are formed. As a result of meiosis, four daughter cells are formed.
- The process of mitosis occurs in somatic cells whereas the process of meiosis occurs in reproductive cells.
- The daughter cells formed as a result of mitosis are the exact copies of parent cell. In the process of meiosis, genetic recombination occurs and hence the daughter cells are not exact copies of parent cells.
To learn more about mitosis, click here:
brainly.com/question/12981491
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