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Veronika [31]
3 years ago
13

NEED HELP ASAP!!!!!!!!!!!

Biology
1 answer:
ipn [44]3 years ago
8 0
Water is the most abundant molecule in the Earth’s atmosphere is false.
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Genetic drift is dependent upon which of the following? A. crossing-over B. random chance C. natural selection D. gene mutation
sammy [17]

C. natural selection.

This is because in smaller populations the more that two separate groups of animals don’t interbreeding the father they become until speciation occurs where they cannot interbreed between the two groups.

7 0
3 years ago
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how do you identify a pure metal if you have a balance of a graduated cylinder and a table of densities for metals?
sattari [20]
We determine the mass of the metal in grams by weighing it using the balance. Next we obtain the volume of the metal by measuring its displacement with a graduated cylinder and water in the following way: 1.measure amount of water in the graduated cylinder. 2. Place metal into the graduated cylinder 3. Measure the amount of water in the graduated cylinder 4. Subtract step 1 from step 3. The difference is the metal's volume. Once we have found out the mass and the volume then we calculate the density using the formula: Density = Mass/Volume. We then check our answer from the known densities of metals in the table of densities that has been provided and determine the identity and purity of the metal by how close our answer is to the most probable value in the table.
4 0
3 years ago
What is energy and what are some different kinds of energy?
igor_vitrenko [27]

Answer:

Chemical energy is energy stored in the bonds of atoms and molecules. ...

Mechanical energy is energy stored in objects by tension. ...

Nuclear energy is energy stored in the nucleus of an atom—the energy that holds the nucleus together.

Explanation:

6 0
3 years ago
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Select all that apply.
Dennis_Churaev [7]

Answer: Water, Oxygen, and Carbon Dioxide

Explanation: The water travels to get to the root of the plant so it could help the plant grow. The oxygen travels through the somata so it could be a waste from the plant through the process of photosynthesis. The carbon dixoide travels in as an input for photosynthesis.

8 0
2 years ago
Which describes the scientific view's order of earth's first living things to the most recent?
hammer [34]
<span>The scientific view's order of Earth's first living things to the most recent is described by choice C. cyanobacteria, hagfish, crocodilians, giant ground sloths. Cyanobacteria have lived on the Earth since the Precambrian supereon. Actually, they first appeared in the Archean eon (4-2.5 billion years ago). Hagfish, as other jawless fish, appeared in the Paleozoic era (541-252 million years ago). Crocodilians appeared in the Cretaceous period (145-66 million years ago). Giant ground sloths, also known as megatherium, appeared in the Pliocene epoch (5.33-2.58 million years ago).</span>
6 0
3 years ago
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