What is the outermost layer of cells

Answers

Answer 1
Answer: the outer layer of a cell is called epidermis. 

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All of the following are examples of voluntary muscle movement except_______? Heart beating Leg kicking a soccer ball Arm picking up a glass
Which statement about stomata is true?A.)The number of stomata is greater on the upper surface of the leaf. B.)The number of stomata is greater on the lower surface of the leaf. C.)The number of stomata is equal on both surfaces of the leaf.
Which type of clouds can you always expect to bring precipitation?
A researcher wants to test how diets A and B affect the weight loss of rabbits. She has 20 rabbits to use, but all of the rabbits are different sizes, which might affect how much weight they lose. The researcher decides to group the four smallest rabbits in one group, the next four smallest rabbits in another group, etc., until the final group has the four largest rabbits. Then, from each group she randomly selects two rabbits to have diet A, and the remaining rabbits in the groups have diet B.Select all that apply:A. This is an example of a block design.B. This is an example of a completely randomized experimentC. This is an example of a matched pairs experiment.D. The treatments are diets A and B.E. The treatment is how much weight a rabbit loses.F. The experimental units are the 20 rabbits.G. The experimental units are diets A and B

What is the term for the main stream and tributaries of a river?

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Hi There! :)

What is the term for the main stream and tributaries of a river?

The region drained by a river and its tributaries is the river basin. The actual river and tributaries is the river system.

Which of the following factors has the greatest effect on blood pressure

Answers

I'm assuming you mean ,What has the greatest effect on blood flow? because you didn't give any answer choices. So there for your answer is, blood vessel radius. Please tell me if this helped or not.

Answer:

A) Radius of vessel

Explanation:

Which of the following is not a reason for the lack of a fossil record from the Precambrian time? A. The single-celled organisms that existed during that time did not leave easily identifiable fossils. B. Like the rocks of the Phanerozoic eon, Precambrian rocks contain many visible signs of complex life forms. C. Multi-celled organisms evolved in the oceans during the latest years of the Precambrian time. D. Precambrian rock has been eroded or metamorphosed over billions of years, and very little of it remains at the surface.

Answers

The right answer is B

The development towards 1.4 Ga of eukaryotes, aerobic organisms such as unicellular algae, will be decisive for the oxygenation of the Earth's atmosphere.

The first multicellular organism is a red alga dating back to 1200 Ma during the Mesoproterozoic era (part of Precambrians). Various forms of life with soft bodies dated between 600 and 541 Ma constitute what is called the Vendian fauna, that is to say the fauna of the Ediacarien.

The appearance of a great diversity of small shelly fauna from 541 Ma will mark what is called the Cambrian explosion.

Which concept is shown by the relationship between the Oahu Amakihi and the Kauai Amakihi?adaptation

competitive exclusion

predator-prey

niche

Answers

The concept that is shown by the relationship between the Oahu Amakihi and the Kauai Amakihi is competitive exclusion.

Answer:

the correct answer is A competitive exclusion

Explanation:

Which of the following will NOT cause mass extinction?Drastic change in weather
Geological change
Both a and b
None of the above

Answers

Geological change will not cause a mass extinction, because it happens on a too big scale - on the scale of millions of years. During such long time, it is more likely that other causes will influence the survival of extinction of species, such as climate change or environmental disasters, and even if there is a small influence, it would not be significant next to other causes.

How is burning fossil fules different from other processes that cycle carbon in enviornments on earth

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Answer:

Burning fossil fuels is different from other processes that cycle carbon in environments on Earth in the following ways:

Speed: Burning fossil fuels releases carbon dioxide into the atmosphere much more quickly than other natural processes. For example, it takes millions of years for carbon dioxide to be released from rocks and sediments through natural processes, but fossil fuels can be burned in a matter of seconds.

Scale: The amount of carbon dioxide released into the atmosphere from burning fossil fuels is much greater than the amount released from other natural processes. In 2019, humans emitted about 38 billion tons of carbon dioxide into the atmosphere, of which about 89% came from burning fossil fuels.

Location: Burning fossil fuels releases carbon dioxide into the atmosphere in specific locations, such as cities and power plants. This can lead to high concentrations of carbon dioxide in certain areas, which can have negative impacts on human health and the environment.

Other processes that cycle carbon in environments on Earth include:

Photosynthesis: Plants use carbon dioxide from the atmosphere to produce food.

Respiration: Plants and animals release carbon dioxide into the atmosphere when they breathe.

Decomposition: When plants and animals die, their bodies are decomposed by bacteria and fungi, which release carbon dioxide into the atmosphere.

Weathering: Rocks and sediments are weathered over time, releasing carbon dioxide into the atmosphere.

Volcanic eruptions: Volcanic eruptions can release large amounts of carbon dioxide into the atmosphere.

These natural processes cycle carbon between the atmosphere, land, and oceans. The carbon cycle is a natural process that has been happening for millions of years. However, human activities, such as burning fossil fuels, are disrupting the carbon cycle and causing carbon dioxide levels in the atmosphere to rise. This is leading to climate change, which is having negative impacts on the planet and its inhabitants.

To reduce the impact of burning fossil fuels on the carbon cycle, we can transition to renewable energy sources, such as solar and wind power. We can also improve energy efficiency and reduce our reliance on fossil fuels.

hope this helps <3