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tensa zangetsu [6.8K]
2 years ago
10

All life on earth is made of which element?

Biology
1 answer:
ddd [48]2 years ago
3 0

Answer: Hydrogen

Explanation:

Because it is the element that everything is created with it is everywhere. All life has hydrogen in it, our air, SPACE, everything.

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Which of the following correctly compares Ornithischian and Saurischian dinosaurs?
kumpel [21]

Answer:

The option c is partly correct.

Explanation:

None of the statements is completely accurate because:

a. Saurischian dinosaurs include theropod and sauropod dinosaurs, and their common ancestors. Ornithischians comprise neornithischians (ornithopods and ceratopsians), thyreophorans (ankylosaurs and stegosaurs) and heterdontosaurids.

b. Capability to fly has only been documented in fossils belonging to Saurischia (where the birds are also classified in). Feathers, on the other hand, do appear in the two clades. Feathers, however, are not a trait exclusively associated to flight.

c. This is a correct comparison between ornithischians and saurischians in the sense that the attributes do belong to these clades, but when comparing animals there most be a comparison that reflects a pattern. Ornithischians have leaf shaped teeth suited to eat plant material, whereas saurischians have teeth for a carnivore and herbivore diet.

d. Sauropods are saurischians and they evolved herbivory from a meat-eater ancestor.

5 0
3 years ago
Look at the graph below. Which of the following stars is most likely to be red? (5 points) a Star A b Star B c Star C d Star D
Jet001 [13]

<em>Answer:</em>

????

<em>Explanation:</em>

Hey! I hope you had a great day so far :)

But uh...

I cannot answer that question for you.

There are no "stars" and definitely no graph on a file attached.

Sorry!

<em>Helper's Message:</em>

Hey, I hope you can give me a Brainliest :)

<em>-ChocoChocoCho</em>

7 0
3 years ago
A cage
raketka [301]
I think it’s B I’m not sure
7 0
4 years ago
Which of the following would most likely be key to gathering evidence that the RNA World hypothesis is valid?
muminat

Answer:

The answer is; Simulation of early Earth conditions and long-term study of the resulting molecules

Explanation:

It is believed that the first molecules on earth were made spontaneously through reaction spurred by energy from lightning and also the heat from the earth. It is believed that these molecules over time then formed polymers through the catalysis by metals in the oceans. These polymers were able to self-replicate and also act as enzymes since they were able to fold up. This hypothesis was coined by Carl Woese, Francis Crick and Leslie Orgel in the 1960s. To prove it, the then conditions of early earth need to be replicated, data collected, and analyzed.

Read more on Brainly.com - brainly.com/question/2321489#readmore

5 0
4 years ago
What is the main prerequisite for clearance at the G2 checkpoint?
Katena32 [7]

Answer:

The correct answer will be option-accurate and complete DNA replication.

Explanation:

The cell cycle of a cell is controlled by the internal checkpoints where the cell cycle halts until the favourable conditions appear. These checkpoints are G1 checkpoint, G2 checkpoint and M checkpoint.

The G2 checkpoint asses that the DNA replication has been completed, all the chromosomes have been replicated and the replicated DNA is not damaged. The cell cycle stops if the replicated DNA is found damaged.

Thus, option-accurate and complete DNA is the correct answer.

3 0
3 years ago
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