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Alina [70]
2 years ago
9

_______ are thought to have been present before vertebrates.

Biology
1 answer:
Verizon [17]2 years ago
8 0

Answer:

invertebrates i guess

Explanation:

hope it helped!!!

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Also called Darwinian fitness, means the ability to survive to reproductive age find a mate, and produce offspring. Basically the more offspring an organism produces during its lifetime the greater its biological fitness.

Explanation:

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BIOLOGY HELP!!!!!
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1. The correct answer is pH.

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Phosphofructokinase is sensitive to acidity, meaning that it is inhibited by low pH levels.

2. The correct answer is temperature.

Enzyme is sensitive to the environmental conditions such as temperature changes.

Temperature is a factor that usually increases the rate of enzyme-catalyzed reactions by increasing the activity of enzymes. But, after reaching the optimum temperature, reaction rate abruptly declines. This happens because enzymes are deactivated or denatured at a certain temperature (above 40° C).


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3 years ago
The landforms indicated by the arrows in the image are common features off the coast of Mississippi. What are these features?
asambeis [7]

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