A population of 100 butterflies living on an acre of land loses three-quarters of its members when a sudden freeze in the spring occurs just after they emerge as caterpillars. This population has undergone a reduction in population size due toA. a density-independent factor.
B. natural selection.
C. an intrinsic factor.
D. a density-dependent factor.

Answers

Answer 1

Answer:

Answer: Option A (Density-independent factor)

Explanation:

Density-independent factor is a population regulation factor that affect or influence the size of a population without considering the population density. Climate and weather are the main density-independent factors in nature.

Their effects increment is directly proportional to the increase in population size. These factors are environmental agents that checkmate the size of a population without putting the reproductive and behavioral patterns of the organisms into consideration.

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Which is an example of hybridization that would increase hybrid vigor?

Answers

Hybridization by sexual reproduction

Hybrid organisms contain DNA from both male and female parents but cloned organisms contain DNA from only one type of parent. Hybrid has superior character over its parents (improved hybrid vigor) but clones are 100% identical to their parent. Hybridization gives only one hybrid progeny, whereas through cloning unlimited identical organisms can be produced.

What would happen if a freshwater fish didn't produce lots of watery urine?

Answers

Freshwater fish might have urinary tract and kidney disease if they would not be able to produce lots of watery urine. This will result to parasite infestation. To avoid this, the freshwater fish will have to pee or urinate. Their pee or watery urine consists of ammonia and other organic acids like creatine and creatinine.

Which best describes the author’s viewpoint toward the actual Rosetta Stone in "The Rosetta Stone”?It is a fascinating artifact that can help people better understand the past.
It is a historical artifact that scholars spent too much time trying to understand.
It is something that is interesting to learn about, but it is not historically significant.
It is a piece of 5 that has an exciting and entertaining story.

Answers

The right option is; It is a fascinating artifact that can help people better understand the past.

Rosetta Stone is an ancient Egyptian stone discovered by a Frenchman called Bouchard in August 1799. The stone has inscriptions written in two languages (Egyptian and Greek) and in three writing systems (hieroglyphics, demotic script and the Greek alphabet). The inscriptions on the stone were written by a group of priests in Egypt to honour the Egyptian pharaoh. The inscription contains all the good things that the Egyptian pharaoh did for the priests and the people during his reign.

Answer: A

Explanation:

How do fungi make people sick?

Answers

Fungi are recycling agents, helping to decompose dead material e.g. plants and animals, to put the nutrients back into the soil. Some fungi feed off living material, causing disease to plants (dutch elm disease in trees) and animals. Fungi can cause diseases such as; athlete's foot, thrush and ringworm. Fungi may sometimes cause serious infections in people who are especially susceptible to infections because their immune system is damaged. We also feel ill because of our body's response to infection.

Answer:

Some fungi reproduce through tiny spores in the air. You can inhale the spores or they can land on you. As a result, fungal infections often start in the lungs or on the skin. You are more likely to get a fungal infection if you have a weakened immune system or take antibiotics.

Explanation:

A plant native to the chaparral would be expected to _______?

Answers

The answer to the question presented above would be 'require frequent rainfall'. A plant native to the chaparral would be expected to require frequent rainfall. This is because it cannot survive in dry lands and without constant water.

Final answer:

A plant native to the chaparral would be expected to be dominated by shrubs

Explanation:

A plant native to the chaparral would be expected to be dominated by shrubs and adapted to periodic fires in the area. The chaparral biome is characterized by its annual rainfall, dry summers, and nutrient-rich ashes left behind after fires. Some plants in the chaparral produce seeds that only germinate after a hot fire, allowing for regrowth.

This adaptation helps plants in the chaparral thrive despite the harsh environmental conditions. Thus, chaparral-native hay, which produces seeds that grow after a hot fire, would be anticipated to be dominated by shrubs and adapted to recurring fires.

Learn more about chaparral plants here:

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The process of reproductive cloning begins bya. genetically modifying a stem cell.
b. placing an adult nucleus in a cell without a nucleus.
c. genetically modifying an embryo.
d. isolating cells to learn more about how they specialize

Answers

It would be B.
It depends on the cloning technique. The reproductive cloning procedure starts with extracting small samples of tissue from the subject that will be cloned. Then culture the tissues in a lab. Condition the cultured cells so it halts cell division. The G0 phase of the cell cycle then begins which selects a cell for such cloning, then step B comes into play

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