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il63 [147K]
2 years ago
13

In multiple fission, a cell is produced that has multiple ________. daughter cells spores nuclei parent cells

Biology
1 answer:
trapecia [35]2 years ago
7 0

Answer:

Nuclei

Explanation:

Nuclei

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Researchers test a group of cells for DNA content immediately following mitosis and find the average to be 12 picograms of DNA p
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Answer:

The correct answer is - 24, 24

Explanation:

In any type of cell division, there is an interphase stage before the actual process of division which is a preparatory process or stage that includes different substages like G1, S, and G2. S phase is a synthesis of the cell cycle responsible for duplication or replication of the DNA.

So, at the end of the S phase, the DNA amount becomes double its initial amount and remains the same in the G2 phase. So, if the initial amount is 12 picogram then it will be double in the S phase and remain 12 in G2 as well.

7 0
3 years ago
Name two types of evidence used to support the theory of evolution. Explain how scientists use each type of evidence to provide
TEA [102]
Evidence for evolution, in other words evidence of common descent, include fossils, which have shown a (fairly) steady change in morphology over time for some species. An example would be horse hooves: we have fossils that show when they were still three toed, then two toed, then one toe in our present day horses. Another piece of evidence is vestigial organs. An example of vestigial organs is wings in some flightless birds, such as the kiwi. Their ancestors used it in order to fly across the marine barrier into New Zealand, but natural selection and random genetic drift made them quickly lose the ability to fly. Nonetheless, they still have their wings, however small. It can be assumed that eventually, their wings would be reduced to small stubs fused to other nearby bones, as has been observed in their cousins.
8 0
3 years ago
1. Photosynthesis takes place in structures called chloroplasts that allow a plant to make glucose and oxygen. Describe one of t
loris [4]

Answer: Chlorophyll is a substance inside the chloroplasts which is used to absorb light from the sun in order to provide the plant with energy to photosynthesise

Explanation:

5 0
3 years ago
How do mutations impact genetic variation?
Anna35 [415]
<span>The random changes a mutation causes to an organisms genetic code causes either 1. A different protein to be produced or 2. none at all Mutations can either have a positive, negative or neutral (the vast majority) effect on the organism. (many times whether they are harmful or helpful depends on the environment.) When a mutation makes an organism better able to survive that organism is more likely to survive and pass the mutated gene onto the next generation.</span>
5 0
3 years ago
You are studying with a classmate, who explains that increasing the amount of nutrients in a lake helps submerged, rooted aquati
Nataly_w [17]

Answer:

E-You disagree because the resulting increase in phytoplankton at the surface would inhibit sunlight from penetrating into the water, thus inhibiting photosynthesis in the submerged plants.

Explanation:

Eutrophication is the process wherein nutrients specifically phosphorus and nitrogen are present in excess in a water body such as a lake. The increased concentration of nutrients promoter the growth of cyanobacteria and algae such as phytoplankton.

The increased population of phytoplankton in surface water reduces the oxygen availability and clarity of water for the organisms present in deeper layers.  Also, reduced clarity of water limits the amount of solar radiations penetrating the surface water to reach the deeper layers.

Increased nutrient levels of the lake would rather inhibit the growth of submerged plants due to reduced availability of sunlight as caused by presence of phytoplankton in surface water.  

5 0
3 years ago
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