To perform a testcross, scientists cross an organism with an unknown genotype with a homozygous recessive organism.
Hope this helped xx
C.Sun Light hope this helps.....
Answer:
The living organisms in an ecosystem can be divided into three categories: producers, consumers and decomposers. They are all important parts of an ecosystem. Producers are the green plants The third type of living organism in an ecosystem is the decomposers.
Explanation:
no
Answer:
a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
Explanation:
The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium
