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Dennis_Churaev [7]
3 years ago
8

What is the primary evidence that dinosaurs existed in the past?

Biology
2 answers:
Harrizon [31]3 years ago
4 0
The answer is A. Bones
Dovator [93]3 years ago
4 0

The correct answer is (a) Bones.

The primary evidence of the existence of dinosaurs can be seen by the bones (fossils) that were found by scientists. Most of the fossils were found in badlands and deserts of China, North America and Argentina. By the studies of those fossils, more than thousands of dinosaur species are identified.

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Please help me answer correctly and ill mark you brainliest
Bad White [126]
B. Draw Conclusions
7 0
3 years ago
How is the gender of an organism determined ?<br> Please help , thank you &lt;3
laila [671]

Answer:

Typically in mammals, the gender of an organism is determined by the sex chromosomes. In the case of humans, this happens to be the X and the Y chromosomes. So as you may recall, if you are XX, you are female. If you are XY, you are male.

6 0
3 years ago
Read 2 more answers
Visible light comes from which one of the sun's layers?
White raven [17]

Answer:

The correct answer is photosphere.

Explanation:

Visible light comes from the layer known as the photosphere.

The Sun's photosphere is the layer that emits visible light. The Sun's atmosphere has seven layers: The core, or the Sun's interior.  The radiative zone. The convective zone. The photosphere or the visible surface. The Chromosphere. And the corona, the outermost layer.

3 0
3 years ago
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Early chest discomfort occurs in what percentage of patients with heart attacks?
Evgen [1.6K]
The early signs of a heart attack occur in 50% of patients that have a heart attack according to the Society of Cardiovascular Patient Care. If the early symptoms are noticed the treatment can be administered to prevent damage to the heart as the most heart damages, 85% occur in the 2 hours following the attack. 
8 0
4 years ago
What are the major characteristics of the aquatic biomes?
Galina-37 [17]

Answer:

Freshwater biomes have less than 1% salt and are typical of ponds and lakes

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