Answer:
The answer is c substitution
Answer:
The correct option is;
True
Explanation:
The digestive system of Cnidarians is incomplete having only one single opening which is the gastrovascular cavity the representing the anus and the mouthof the Cnidarians
The hollow body of the Cnidarian polyp which allows water through has tentacles at the top bearing cells meant for stinging
A prey caught by the tentacles is drawn in to the mouth and ingested
The Cnidarians are able to attach to surface due to their attachment adapted lower end
The correct option is therefore true.
Bubbles are Carbon Dioxide
Oxegyn in the tank
Amino acids are the building blocks of proteins. There are 20 of them in existence. For this item, we are to identify the number of different proteins that can be formed.
In the first position in the sequence, we can have 20 amino acids. Then, because one of which was already used for the first position, 19 amino acids can still be written in the second place. This goes on, and the number of proteins can be calculated as follow,
number of proteins = 20 x 19 x 18 x 17 x 16 x 15
number of proteins = 27,907,200
<em>ANSWER: 27, 907, 200 proteins</em>
