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Andrew [12]
3 years ago
5

What is most important about Earth's atmosphere? A. It always makes airplane rides smooth. B. It makes beautiful sunsets. C. Wit

hout it, there would be no air to breathe. D. Because there is too much atmosphere, some of it is always leaking into space.
Biology
2 answers:
morpeh [17]3 years ago
7 0
C is the right answer
Gre4nikov [31]3 years ago
7 0

Answer:

C

Explanation:

YW

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Vanyuwa [196]

Answer:

Accessing food because while they lay on the ocean floor they search for foods and use the water to digest it

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2 years ago
What is the role of atp in generating a resting membrane potential?
svetlana [45]
ATP fuels the primary active transport pump for Sodium and Potassium. The pump maintains a positive voltage on the exterior of the cell and negative on the interior.
4 0
3 years ago
Identify the correct order of events that allow nutrients from foods to be used by the body. Group of answer choices digestion,
Lera25 [3.4K]

Answer:

The correct answer is- digestion, absorption, transport, elimination

Explanation:

The process of digestion starts from the mouth with the help of enzymes called salivary amylase present in our saliva. The food then passes through the esophagus to the stomach.  

In the stomach, the food is broken down in small fragments by churning movement which mixes digestive enzymes and food to form chyme.  

This chyme is passed to the small intestine where several enzymes from the liver and pancreas digest the food in smaller particles and absorb these particles in the blood. Therefore absorption takes place in the small intestine.

Then the solid waste material left behind after absorption is transported from small intestine to the large intestine and from large intestine waste is eliminated out of the body.

Therefore the correct order are: digestion → absorption→ transport→ elimination.

7 0
3 years ago
What do scientists use to mark boundaries in the geologic time scale?
tekilochka [14]

Era is used to mark the boundaries of geological time scale by using radio carbon dating technique.

Explanation:

Geological time starts with Precambrian time.

Geologically, time is divided between the Precambrian era and present time into era.

The three eras are Paleozoic era, Triassic period and Cenozoic era.

Era is further divided into periods.

Scientists use radio carbon dating to study fossils and rock formation. With this study they were able to divide them in exact geological scale.

Geologic scale is the record of events in earth's history and evolution.

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3 years ago
What was the first cell viewed by the light microscope
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The first cell that was viewed by the light microscope was the oak bark.
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