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Tema [17]
3 years ago
12

Which of these minerals would you use to make wallboard for the interior walls of your house?

Biology
1 answer:
kodGreya [7K]3 years ago
3 0
It is the gypsum. Gypsum is a delicate sulfate mineral made out of calcium sulfate dihydrate, with the synthetic recipe CaSO. 4· 2H2O. It is broadly mined and is utilized as a compost, and as the principle constituent in many types of mortar, writing board chalk and wallboard.
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A biologist examines a series of cells and counts 160 cells in interphase, 20 cells in prophase, 6 cells in prometaphase, 2 cell
Marrrta [24]

Answer:

M phase: 4.8 hr

Prophase: 2.4 hr

Prometaphase: 0.72 hr

Metaphase: 0.24 hr

Anaphase: 0.84 hr

Telophase: 0.6 hr

Explanation:

Mitosis, also known as M phase, is the process of nuclear division after interphase, which is followed by cytoplasmic division via cytokinesis. Mitosis can be subdivided into the following phases: Prophase,  Prometaphase, Metaphase, Anaphase, and Telophase. In this case, 160 cells are in interphase (for a total of 200 cells), thereby 40 cells are in mitosis >> 200 - 160 = 40 cells. Since the complete cell cycle requires 24 hours, it is possible to calculate the average duration of each phase:

M phase: 40/200 = 0.2 x 24 hr = 4.8 hr

Prophase: 20/200 = 0.1 x 24 hr = 2.4 hr

Prometaphase: 6/200 = 0.030 x 24 hr = 0.72 hr

Metaphase: 2/200 = 0.01 x 24 hr = 0.24 hr

Anaphase: 7/200 = 0.035 x 24 hr = 0.84 hr

Telophase: 5/200 = 0.025 x 24 hr = 0.6 hr

3 0
3 years ago
Choose all that apply.
Elodia [21]

The correct answers are options:

1. Amphibians evolved before land reptiles.

4. Elephants appear in the fossil record after dinosaurs became extinct.

The relative dating is a technique of dating with respect to any past event. In this case, two events are discussed to be occurred in a sequence related to one-another. In the option 1, the amphibians are said to be evolved before reptiles. So, the evolution of the amphibians is relatively dated with the evolution of reptiles. Same in the option 4, the evolution of the elephants is relatively dated with the extinction of the dinosaurs.  

5 0
3 years ago
Read 2 more answers
____ allowed scientists to create clotting factor for hemophilia?
kifflom [539]
None of the above is correct.
7 0
3 years ago
Read 2 more answers
4. Analyze what would happen to this ecosystem if one of the primary consumers was removed from the ecosystem?
Natalka [10]

Answer:

Due to a primary consumer being taken out there will be more producers and less secondary consumers because of the new tertiary consumer eating them and the lack of food for the secondary.

7 0
3 years ago
Please help: Which process in plant physiology could not occur if the opening of the undersides leaves are closed?
lapo4ka [179]

A)Photosynthesis

Explanation:

  • Photosynthesis is the process by which green plant prepare glucose using carbon dioxide and water in presence of sunlight and chlorophyll.
  • The openings on the undersurface of the leaves are called stomata.
  • Stomata play a vital role in exchange of gases between tissues and the surrounding.
  • If these openings remain closed then carbon dioxide will not diffuse into the cells and oxygen will not diffuse out of the cell.
  • As a result,  photosynthesis will not take place and the plants will die due to lack of food and nutrients.

7 0
3 years ago
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