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natima [27]
3 years ago
7

How does doppler effect related to expanding universe

Biology
2 answers:
AlekseyPX3 years ago
5 0
The Doppler Effect is evidence that the universe is expanding. When stars or galaxies are moving away from us, we see their color as red shifted. Because the distant galaxies are red shifted, this means that they are all receding with respect to Earth.
tatyana61 [14]3 years ago
5 0

Answer:

Acoustics is the study of sound in different mediums. The Doppler effect changes as the medium changes.

Explanation:

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Explain the 5 steps of scientific thinking
Oksanka [162]
1
state the problem

2
hypothess (prediction)

3
design the experiment

4
record and analyze the date

5
conclusion (what did you learn)
8 0
3 years ago
What might stimulate the cephalic phase of gastric secretion?
kiruha [24]

Complete Question:

Which of the following might stimulate the cephalic phase of gastric secretion?

A. stomach distention

B. the production of saliva

C. the thought of food

D. the production and secretion of gastrin.

Answer:

C. the thought of food

Explanation:

Gastric secretion usually occurs in three different phases, namely;

- Cephalic

- Gastric

- Intestinal

The thought of food usually stimulate the cephalic phase of gastric secretion in organisms. The presence of lipids or low pH inhibits Gastric secretion during the intestinal phase.

7 0
3 years ago
Earth’s water cycle, the movement of water between the oceans and the atmosphere, is an example of how the Earth is made up of d
klasskru [66]


True.

The earth is made of several subsystems or spheres that interact to form a complex and continuously changing (dynamic) state that is termed as the earth system.

Even though the earth system is a closed system, it self regulates through the subsystems  such as the water cycle and  carbon cycle.

The earth system is characterized by numerous overlapping cycles in which matter is recycled  over and over again. Cycles involve multiple spheres and systems interactions. Humans impact and are impacted by the cycles in various ways.


4 0
3 years ago
Which of these statements is
suter [353]

The statement that is true is active transport moves against the concentration gradient.

<h3>WHAT IS ACTIVE TRANSPORT</h3>

Active transport is one of the two types of cellular transport that involves the movement of molecules against a concentration gradient.

This moves that movement occurs from a region of lower concentration to a region of higher concentration. Since movement is against a concentration gradient, it involves input of energy (ATP).

Therefore, the statement that is true is active transport moves against the concentration gradient.

Learn more about active transport at: brainly.com/question/2503897

6 0
2 years ago
In the water cycle, the sun provides
Eva8 [605]
The answer I would say is A.

The sun doesn’t make water
And electricity doesn’t come from the water cycle.
3 0
3 years ago
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