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Nata [24]
2 years ago
7

How do Pesticides Affect Biodiversity?

Biology
1 answer:
ddd [48]2 years ago
3 0

Pesticides have a major effect on biological diversity, alongside habitat loss and climate change. They can have short-term toxic effects on directly exposed organisms, and long-term effects can result from changes to habitats and the food chain. Policy intervention and greater coherence are urgently needed!

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Potassium has a half-life of 12 hours. What fraction of a 100g sample is left after 48 hours
EastWind [94]

Answer:

After 48 hours amount left = 6.25 g

Explanation:

Given data:

Half life of potassium = 12 hours

Total mass = 100 g

Mass left after 48 hours = ?

Solution:

Number of half lives passed:

Number of half lives = Time elapsed / half life

Number of half lives = 48 hours/ 12 hours

Number of half lives = 4

At time zero = 100 g

At first half life = 100 g/ 2 = 50 g

At 2nd half life = 50 g/2 = 25 g

At 3rd half life = 25 g/2 = 12.5g

At 4th half life = 12.5 g/2 = 6.25 g

4 0
2 years ago
If no new rock is deposited in this area, what will likely happen to the top layer of rock over time?
adoni [48]

Answer:

The answer is (C) :P 211111111

5 0
2 years ago
The action of this rudimentary biological level of organization governs all physical and chemical processes in life. ___________
Sladkaya [172]

Answer:

Cell

Explanation:

Cell the essential membrane- bound unit that contains the key particles of life and of which every living thing are formed.

These cells collaborate with other specific cells and become the structure squares of huge multi cell living beings, for example, people and different creatures.

The levels of organization range from a single organelle all the way up to a highly structured hierarchy.cell governs all physical and chemical process in life.

8 0
3 years ago
What molecule stores energy at the end of cellular respiration.
Artemon [7]

Answer:

​Mitochondria

Explanation:

The mitochondria stores ATP, ATP is energy for the body.

5 0
2 years ago
A mutation takes place in a protein-coding gene that changes one codon resulting in a single amino acid replacement. Which type
ikadub [295]

Answer:

The answer is A

Explanation:

8 0
3 years ago
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