PLEASE HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER What makes an area a biodiversity hot spot? A.high diversity and medicine B.high diversity and food C.many endemic species and medicine D.many endemic species and high diversity IS IT D?
Solution 1
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Answer:
Polar covalent molecule
Explanation:
Answer:
The correct answer is option D, continue to expand and cool
Explanation:
The concept of expanding universe was first time discovered by Einstein's theory . The solutions obtained through his relativity theory has red shifting of light when they come from distant objects travelling all through the expanding universe. Further in 1929, it was proved by Edwin Hubble that universe is expanding when he plotted the curve between the red shift against the relative distance.
Form this it was further linked that due to expansion of universe there can be effect of red shift in the spectrum of the light as the wavelength would have become longer than earlier which would lead to decrease in temperature associated with spectrum and thus the universe keep on cooling continuously as it expands continuously.
a. form a new organism - this is because all organisms are dependent on cellular division that parent cells go through in the process of mitosis or meiosis.
b. repair damage tissues - that occur in different parts of an organism's body, cell division plays an important role in closing in gaps in wounds or even mending bones that have been broken.
c. become a health organism - abnormalities and mutations in the gene will occur which will cause physical or other character traits that the organism has.
Answer:
A. have to use binary fission to divide.
Explanation:
Prokaryotic cells (Greek pro: before, karyon: nucleus/kernel) have their genetic material freely suspended in the cytoplasm and don't have a well-defined nucleus bounded by a nuclear membrane. They are simpler cells as compared to eukaryotic cells. They use binary fission for cell division.
EXAMPLES: Bacteria
Eukaryotic cells ( Greek Eu: true/well, karyon: nucleus, kernel) have a well defined nucleus bounded by a nuclear membrane and their genetic material (DNA) is not freely suspended in the cytoplasm. They are more advanced cells as compared to prokaryotic cells. They reproduce by mitosis. The cell cycle of eukaryotes is divided into
- Interphase
- M phase/ Mitosis (cell divides)
Interphase is further divided into following stages:
- G1 phase (cell increases in size)
- S phase (cell copies its DNA)
- G2 phase (cell prepares for division)
M-phase/Mitosis is further divided into following stages:
- Prophase
- Metaphase
- Anaphase
- Telophase
Interphase is the longest period of cycle and a cell typically spends most of its life in interphase.
EXAMPLES: Human cells, Plant cells
Coming back to the question.
In contrast to eukaryotic cells, prokaryotic cells
A. have to use binary fission to divide.
- This is the correct answer as prokaryotic cells undergo binary fission.
B. have a cell cycle that includes interphase and mitosis.
- Eukaryotic cell cycle includes interphase (G1, S, and G2 phases) and mitosis. Interphase and mitosis are not the features of prokaryotic cell cycle.
C. have to pass through the G1 , S, and G2 phases to prepare for division.
- G1, S, and G2 are the stages of interphase which is a part of eukaryotic cell cycle. These are not the part of Eukaryotic cell cycle.
D. have to go through prophase, metaphase, anaphase, and telophase.
Prophase, metaphase, anaphase, and telophase are stages of mitosis. Prokaryotic cells don't undergo mitosis and hence they don't go through these steps.