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Andrews [41]
3 years ago
11

Which statements indicate what the fossil record suggests about evolution on Earth? Check all that apply.

Chemistry
2 answers:
Gennadij [26K]3 years ago
6 0

The following are the statements, which indicates that the fossil record suggests about evolution on Earth:  

1. Humans have only recently existed on Earth.  

2. The organisms originally lived only in Earth's water.  

3. The plants did not have flowers when dinosaurs existed.  

The fossil remains have been discovered in the rocks of all the ages. The simplest organisms fossils are witnessed in the oldest rocks, and the fossils of more composite species are found in the newest rocks. This supports the theory of evolution suggested by Darwin, according to which the simple life forms slowly gets evolved into more composite ones.  

mafiozo [28]3 years ago
3 0

Answer:

100% correct answer

Humans have only recently existed on Earth.

Organisms originally lived only in Earth’s water.

Plants did not have flowers when dinosaurs existed.

Explanation:

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3 years ago
All of the substances on the periodic table are classified as elements except
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4 years ago
Magnesium is a metal with two elections in its outermost energy level. When it becomes an ion, what happens to its valence elect
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Answer:

The answer to your question is Mg loses its valence electrons and acquire a positive charge (Mg⁺²).

Explanation:

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3 0
3 years ago
Which of the following does NOT involve a physical change?
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4 0
3 years ago
A chemist determined by measurements that 0.030 moles of barium participated in a chemical reaction. Calculate the mass of bariu
schepotkina [342]

Answer: 4.1 g of barium precipitated.

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar Mass}}

Given : moles of barium = 0.030

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Thus there are 4.1 g of barium that precipitated.

3 0
3 years ago
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