Which of the following explains why a tree is often used as a model to represent the principle of common descent

Answers

Answer 1

Answer:

When the relationships between species are mapped out, branches spread out from a common trunk, resembling a tree.

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Where do the homologous chromosomes in a diploid cell come from?

Answers

I believe they come from gametes or that could be haploid cells. Since gametes create one instead of two.

Which has a physical property? A. Reactivity
B. Burning point
C. Boiling point
D. Chemical stability

Answers

Boiling point. If you boil water it changes from a liquid to a gas, which is a physical change. The rest are chemical properties because the chemical make up of an object changes.

Static charges flow continuously. true or false

Answers

False, because the charge isn't strong enough.

Answer:

false

Explanation:

google

List three effects that an increase in urbanization can have on air quality

Answers

Increase in urbanization will lead to increase in the number of people who are living in an urban area and it will also lead to increase in development in that area. The increase in development can come in form of construction of industries, which release large amount of waste products that pollute the air. This will lead to air pollution and reduce air quality. Development can also be in form of availability of electricity, that makes it possible for people to operate different electrical gadgets such as radio and television, which can result in noise pollution. Increase in the number of people who operate motor vehicles will also lead to increase in air pollution, which is caused by fossils fuel.

There are several effects that an increase in urbanization will have on air quality. One will be there will be more vehicles on the road. Before the city was urbanized, there were fewer vehicles and people. Another reason will be more industry pollution. When a city has been urbanized, more factories will come for the citizens to have jobs and to bring in more money. The burning of fossil fuels will also increase as the population grows. That will have a huge effect on the air quality.

While excavating an area in the desert, a scientist discovers the fossils of very large tress and ferns. What might the scientists conclude about biomes in this area?

Answers

Large trees and ferns need water to survive. This suggests that the biome was once very different from the desert it is today. #globalwarming lol

Answer:

stay safe out there in 2020. hope your all safe. Have a bless day.

Explanation:

How many organisms represented are multicellular?

Answers

All of the organisms are multi-cellular.
Fungus, belonging to the fungi kingdom,
Green plant, belonging to the plant kingdom,
Spider and Birds, belonging to the animal kingdom.
All of the above kingdoms are made up of only multi-cellular organisums, excluding some yeasts in the fungi kingdom.
Good luck!

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The functions of an organism's parts are related to those parts'A. Structures B. Systems C. Blood Cells D. Alveoli P.s This how the question is given to me.

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What removes the oxygen from the air?A. Photosynthesis B. Respiration C. Sunlight D. Water