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dezoksy [38]
2 years ago
9

A population of insects is sprayed with a new insecticide. Most of the

Biology
1 answer:
zepelin [54]2 years ago
4 0

Answer: This shows that over time, some insects can become "pesticide-resistant" meaning that pesticides don't affect them anymore. And this only happens every few generations. Therefore, each generation is being naturally selected and accumulating variations that make them resist the chemicals. This shows that each cockroach's genes are changing to give them variation from the rest of the population.

I hope this helps!

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I. Plant cells are formed from fertile soil.
Dmitriy789 [7]

Answer:

Option-B

Explanation:

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Once when they together met in a conference, they shared what they observed and later both reached the conclusion that cell is the functional and structural unit of living organisms.

In the given question, since Schwann was a zoologist, therefore, he concluded that the cell in an organism must function properly whereas Schleiden was a botanist and concluded that the different structures of a plant are composed of cells.

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6 0
3 years ago
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Is rice pudding a homogeneous or heterogeneous mixture?
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<span>Rice pudding would be an example of a heterogeneous mixture. A heterogeneous mixture means that different constituents of a mixture can be identified. Rice pudding consists of rice suspended in a cream. It is possible to identify the grains of rice and the creamy part of the mixture. A homogeneous mixture looks the same throughout--you cannot identify individual parts or ingredients. The parts of a homogeneous mixture are said to be uniformly distributed. Rainwater and air are examples of homogeneous mixtures.</span>
8 0
3 years ago
Vertebrates developed about 550 million years ago. the oldest vertebrate fossils are those of _____ with no jaws.
jarptica [38.1K]
Vertebrates developed about 550 million years ago. The oldest vertebrate fossils are those of FISH with no jaws. These e<span>arly jawless fish did not have paired fins and their bodies were covered with heavy, bony scaled, but their skeletons were made of cartilage. For the next 50 million years, they were the only vertebrates.</span>
3 0
3 years ago
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Answer:

Your answer is B: The population would increase.

Explanation:

Since the increased fish population would cause a decrease in the prawn population.

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