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Marizza181 [45]
3 years ago
5

1.Which of the following appeared on Earth most recently?

Biology
1 answer:
alisha [4.7K]3 years ago
4 0
2. Dinosaurs appeared before mammals (a)
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How many groups are in the modem periodic table
sweet [91]

Answer:

The correct answer is

18

Groups of the periodic table: The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups.

Hope this helps!

- Quinn <3

7 0
3 years ago
Based on the temperature data in the table which chemical reaction should the students use for their food carrier design
Sladkaya [172]

Answer:

Reaction 1

Explanation:

Reaction 1 would be the most suitable in this case. This is so because in reference to the question you are wanting to keep the food warm over long periods. So in reference to the data in the chart reaction 1 continues to heat up over long periods of time. However, with the other reactions (2, 3, 4) temperatures vary and some even decrease constantly. Therefore showing that the other reactions are invalid to help reach your goal referencing back to the question.

7 0
3 years ago
PLZZZZ!!!!!!!
erica [24]
A. sounds about right.
5 0
3 years ago
Read 2 more answers
Enolase is an enzyme that catalyzes one reaction in glycolysis in all organisms that carry out this process. The amino acid sequ
Tom [10]

Answer:

Enzymes are influenced by changes in pH. Enzymes are best dynamic at ideal pH. It is the most favorable pH value - where the compound is most dynamic. Above and beneath to this ideal pH influence enzyme action. Accordingly enzyme show catalytic action at ideal pH.  

At the point when enzymes are st low or high pH. Hydrogen particles interface with amino corrosive present at dynamic site. In this way changes their state of amino acids, their legitimate direction and influence enzyme movement.  

While estimating action of enolase . 2 phospho glyceraldehyde is a substrate for enolase included a response tube. After appropriate in hatching measure of item is estimated (PEP). Proportion of PEP to 2 phospho glyceraldehyde gives thought regarding enzyme action.  

For negative control, we will take a response tube, without having any enzyme enolase in it. Along these lines we will ready to preclude any change of 2 phospho glyceraldehyde to PEP without enzyme.  

All compound present in our body are adjusted to as per the earth where we are living. In this manner makes us effective in C. aurantiacus ideal temperature for enolase is 55 degrees. So this catalyst will consistently work best at 55 degrees than at 37 degree .

5 0
3 years ago
An example of xylem tissue is:?
zhuklara [117]
B. long fibres in celery

(I've done an experiment in my science class once on xylem tissue on celery)
6 0
3 years ago
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