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user100 [1]
3 years ago
13

Which characteristics accurately describe most reptiles? Check all that apply. are invertebrates are ectotherms have external fe

rtilization lay eggs have a three-chambered heart
Biology
1 answer:
klio [65]3 years ago
8 0

Answer:

2.are ectotherms

4. lay eggs

5. have a three-chambered heart

Explanation:

they my corrected answers

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3 years ago
Susana heats up a sample of red crystals. While the sample is being heated, a gas is released and a blue powder is left after th
Nonamiya [84]

Answer:

You can use either your answer or the sample answer you gave. You are so nice by the way!

Explanation:

THE FOLLOWING ARE TWO ANSWERS YOU CAN CHOOSE FROM

ANSWER 1:

The red crystals are compounds. This is because when the sample is heated, a GAS (element) is released and BLUE POWDER (element) is left. Two elements make up these red crystals. A compound can also be shown through color change - the RED crystals, when heated, turn into BLUE powder. Elements cannot be broken down into substances using physical force, like heating. So yes, this is a compound.

ANSWER 2:

The red crystals are compounds. This is because when the sample is heated, a GAS (element) is released and BLUE POWDER (element) is left. Two elements make up these red crystals. A compound can also be shown through color change - the RED crystals, when heated, turn into BLUE powder. Elements cannot be broken down into substances using physical force, like heating. So yes, this is a compound.

EITHER ONE YOU CHOOSE WILL BE CORRECT, JUST SAYING!

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i hope this helps <3


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