Answer:
smog
Explanation:
Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.
The answer is A
he is known as the father of natural selection :D
It would be best to ask a professional on the subject.
The term "dense" in "dense irregular connective tissue" refers to density of fibers.
<h3>Connective tissues in animals</h3>
Connective tissues are the internal tissues of the body that provides support and protection for the body organs.
There are different types of connective tissues which include:
- dense fibrous connective tissue,
- elastic connective tissue,
- osseous tissue (bone), and blood.
The dense fibrous connective tissue are further divided into:
Dense irregular connective tissues are so called because the are heavily packed with collagen fibres that are irregularly arranged.
Learn more about connective tissues here:
brainly.com/question/24696972
Answer is: p<span>olymerase chain reaction (PCR).
</span>Polymerase chain reaction<span> (</span>PCR<span>) is a technique used in </span>molecular biology<span> to </span>multiply<span> a one or more copies of a segment of </span>DNA,<span> developing thousands to millions of copies of a particular </span>DNA sequence. PRC was d<span>eveloped in 1983 by </span>Kary Mullis (<span>1944 - ).</span>
