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djyliett [7]
2 years ago
8

Radioactivity was discovered around what year?

Biology
1 answer:
RideAnS [48]2 years ago
6 0
Radioactivity was discovered in 1896
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Part i
evablogger [386]

Answer:

              1. When a rubbed ruler is brought close to the paper, salt and pepper they are not equally attracted as paper is lighter than pepper and salt, so it takes less effort for paper to overcome the force of gravity.

2. electrostatic induction is a phenomenon in which static electricity is generated in an object by bringing an electrically charged object near it. When a charged object is brought near to an uncharged body it causes electrical charges to redistribute in the body, resulting one side having excess of positive charges and other side having negative charges, as a result body become charged.  Electrostatic interaction also depends upon the nature and mass of body.  

b. the combination of fur cloth and rubbed ruler produce greatest effect. The reason is that when ruler is brought near to fur excess of electron will flow into fur.


7 0
3 years ago
The cell cycle of yeast cells grown in the nutrient-poor environment is approximately what percent of the cell cycle of yeast ce
vova2212 [387]

Answer:

Upon nutrient limitation, budding yeast will produce daughter cells less than 20% of the mother cell size. This asymmetric division may select for growth functions that are efficient over a larger range in cell sizes, such as exponential growth. In turn, efficient growth over a large size range lessens the pressure to have precise size control.

Explanation:

In wild-type cells growing in nitrogen-rich medium, the size threshold to enter mitosis is high, and the G1/S size control is cryptic because cell division produces daughter cells with a size greater than the minimum required to initiate S phase. In these conditions, G2 is long and G1 is short. However, the cell size threshold to enter mitosis is greatly reduced when wild-type cells are shifted to medium with a poor nitrogen source, such as minimal medium with proline, isoleucine, or phenylalanine. In these conditions, wild-type cells initiate mitosis at a reduced cell size, generating two daughter cells that are smaller than the critical size threshold required to progress through G1/S

3 0
3 years ago
What are three freshwater environments
Tems11 [23]

What are three freshwater environments?

1(Rivers

2(Lakes

3(Streams

4 0
3 years ago
Read 2 more answers
Phospholipid molecules have __ tails that turn inward away from the watery solutions inside and outside the cell.
BabaBlast [244]

Answer:

hydrophobic i believe

Explanation:

hope this helps!

3 0
2 years ago
HELPPP PLSSS :(
Bingel [31]

Answer:

i know the answer its in this

Explanation:

your anser is with me click this link (no link here ) see there you answer

6 0
2 years ago
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