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laiz [17]
2 years ago
13

WILL MARK BRAINLIEST! In the United States, (blank) among bees has caused serious problems in some agricultural regions because

these insects are natural pollinators for a variety of crops.
(i have to write in answer)
Biology
1 answer:
Scorpion4ik [409]2 years ago
6 0

Answer:  Hope this helps because i never got  a crown before.

Explanation:

The population losses among honey bees are elucidated in a large body of ... The supply of healthy and affordable honey bee colonies for crop pollination clearly ... has caused dramatic declines in honey bee abundance in North America and ... discontinued in the United States because of concerns with residues in honey ...

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Nitrogen dioxide is a gas that can be generated by emissions from vehicles and factories. It can also be generated by natural so
klio [65]

Answer:

D. A brown gas produced

Explanation:

When a chemical reaction occur, there are several changes that takes place such as change in color, odor change, formation of a gas, and formation of a precipitate etcetera.

In the given chemical reaction, two colorless gas (NO and O2) react together and form brown gas (NO2). So, the change of gas from colorless to brown gas is the evidence that shows chemical reaction occurred.

Hence, the correct option is "D. A brown gas produced".

6 0
3 years ago
two things that can cause cancer include 1) death and miscopying 2) exact copy of heathly DNA and damaging effect of radiation 3
faltersainse [42]

Mutations and Death is the right answer

3 0
2 years ago
Compare the modern Cell Theory to the original Cell Theory
CaHeK987 [17]
The statements of the old cell theory are:
1. All organisms are composed of cells
2. The cell is the basic unit of life
3. Cells are produced from existing cells

The modern cell theory's statements are:
1. The cell contains hereditary information which is passed to daughter cells
2. All cells are basically the same in composition and activity
3. All basic functions occur in cells
4. Cell activities depend on intracellular structures

As is visible from the statements, the old cell theory was not as detailed and lacked the understanding of the function, structure and behavior of cells that the current theory possesses. This difference has come about after years of research, through which scientists understood the functions of cells and elaborated on the theory's statements.
6 0
3 years ago
Which of the following phase changes is an endothermic change?
kherson [118]

Answer: The correct answer is B) Vaporization.

A process is called endothermic when it absorbs energy from surrounding. In other words, if energy is consumed in any process then it is termed endothermic change. When any process releases energy in the surrounding then it is called exothermic process.

In vaporization, energy is absorbed by water molecules, which form vapors. Thus, it is an endothermic change.

On the contrary, in condensation, deposition, and freezing, the new bonds are being formed and thus energy is released in the surrounding. Therefore, they are exothermic process.

4 0
3 years ago
Read 2 more answers
What is stored in carbon bonds
Maru [420]

glucose is stored in carbon bonds

7 0
2 years ago
Read 2 more answers
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