Answer:
Prime attributes are the attributes of the candidate key which defines the uniqueness
The answer would be C, as many streams/rivers carry plant seeds, dispersing them. If there was a drought, these seeds wouldn't be able to float on the stream and disperse.
Answer:
Water is made up of H20 thus that is where the fish is getting the oxygen from
The rocks which are porous depending on the degree of cementation
include the following:
<h3>What is Porosity?</h3>
Porosity is the measure of empty spaces in a particle which permits the
passage of compounds such as water etc.
The rocks mentioned above have a lot of empty spaces which permits
other substances to pass through them. The remaining rocks are
composed of tightly held grains which reduces their porosity.
Read more about Porosity here brainly.com/question/8757684
PCR is commonly used to duplicate a small section of DNA in order to make it readable by the lab
