the is a definite article meaning that you cannot use it
"an" can only be used before words beginning with vowels
therefore the answer is" a"
Rarefaction in terms of ecology can be defined as a technique used to assess species richness from the results of sampling.
It allows the calculation of richness of a particular species for a given number of individual samples, and these are based on the construction of rarefaction curves.
Hence, the correct answer is: option A-Creating a representative sample
<span>The Human Genome Project had a very negative effect due to development
in technology and academic rivalry. With knowledge came bitter rivalry and with
technology came the tendency to become God. These angles greatly created
negative impact about this project. The experts tried to create human clones,
tissue engineering etc. The scientists
tried to analyze a person and get rid of any future disease that might attack
them. Some people feel this is good while others feel that it is like
distorting the natural process. </span>
Excitable cells like those found in muscle tissue are expected to be present in higher quantities in arteries than in veins.
<h3>What are Excitable cells?</h3>
Excitable cells are defined as those cells that are capable of generating electrical impulses when stimulated. Example of such cells include:
- muscle cells( smooth, skeletal and cardiac)
The artery is made up of higher amount of smooth muscles than the veins therefore, excitable cells like those found in muscle tissue are expected to be present in higher quantities in arteries than in veins.
Learn more about muscles here:
brainly.com/question/25778330
#SPJ1
