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aliya0001 [1]
3 years ago
5

Need help with 2. and 3. Thanks!

Biology
2 answers:
Aleks [24]3 years ago
8 0

Answer:

2 = shark, gorilla, lizard

3 = salamander, shark

Explanation:

aleksley [76]3 years ago
6 0

Answer:

Hair has 2 checks

Explanation:

I believe because if you read it you will see

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The answer is scientific question
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Choose the CORRECT statement about enzymes below.
Papessa [141]

Answer:

Enzymes function best at specific pH and temperatures.

Explanation:

An enzyme can be defined as a biological catalyst that typically lowers the activation energy of a biological reaction. When the activation energy of a reaction is low, the rate of the reaction would be faster. Therefore, an enzyme speeds or catalyzes the rate of a reaction by lowering its activation energy.

Also, if the conditions are not optimal for an enzyme, it limits the ability of an enzyme to bind or be joined with its substrates.

Hence, the correct statement about enzymes is that enzymes function best at specific pH and temperatures. An increase in temperature increases or speeds up the rate of a reaction while low temperature limits or reduces the rate of a reaction. The optimal temperature for enzymes in the human body is around 37 degrees celsius.

8 0
3 years ago
Question 4 (1 point) If 18 grams of oxygen reacts completely with 4 grams of hydrogen, we would expect how many grams of water?
Lisa [10]

Answer:

C.22 grams because mass cannot be created or destroyed

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The mass of water produced is 22g according to law of conservation of mass.

The law states that " in a chemical reaction, mass is always conserved"

 The sum of the mass of product  and reactants must always be the same.  

6 0
3 years ago
How does the cardiovascular system helps the body get rid of carbon dioxide???
dem82 [27]
Http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0072434/ 

There is a website with some info. Hope it helps! :)


6 0
3 years ago
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