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Gnom [1K]
3 years ago
6

Which of these statements is true?

Biology
1 answer:
Salsk061 [2.6K]3 years ago
8 0
C. DNA codes for RNA which codes for proteins
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One student did an experiment on the rock cycle. The steps of the experiment are shown below. Pile wax shavings of different col
Ganezh [65]

wax represents rock. different colors means different types of rock. the squeezing n folding represent rocks being compressed n folded together. heating in pan is rock getting heated. the whole experiment demonstrates how metamorphic rock is formed.

5 0
3 years ago
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The graph below compares the rates of reaction of a burning candle and an exploding firework.
marusya05 [52]

Answer:

The reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn.

Explanation:

The speed of a chemical reaction and the amount of energy required for this reaction is directly linked to the concentration of reagents present in the system. With that, we can say that the higher the concentration of reagents, the faster the chemical reaction will be due to the greater probability of collision between its molecules.

Although the reaction that causes a candle to burn has more reactants than the reaction that causes the fireworks to explode, the latter requires less energy to start. This makes the molecules of the reagents stir faster and collide more efficiently, making the reaction happen much faster.

In summary, the reaction that causes a firework to explode requires less energy to start and occurs more quickly than the reaction that causes a candle to burn.

6 0
3 years ago
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Homeostasis refers to the necessity of an organism to maintain constant or stable internal conditions. what structure helps cell
expeople1 [14]
The cell membrane helps it
5 0
3 years ago
Two species of tree frogs that live sympatrically in the northeastern United States differ in ploidy: Hyla chrysoscelis is diplo
Artist 52 [7]

Answer:

The correct answer is - polyploidy.

Explanation:

Speciation can be two types allopatric and sympatric speciation. Sympatric speciation is the process of speciation is developing the new species that diverged from the common ancestral species while the ancestral and developed species both can share the same place or geological area. The main cause of such speciation is due to the change in their genetic level more than environmental conditions.

In this case, the frog's species show differences in their ploidy level as well as their mating call but polyploidy is the most likely the difference that evolved first rather than females call for mating.

Thus, the correct answer is - polyploidy.

5 0
3 years ago
What gas is represented by #1 on the graphic?
Sauron [17]
The answer is a. Nitrogen
8 0
3 years ago
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