Which of the following is a biotic aspect of an organisms niche
a. the water in the area
b. the food it obtains
c. amount of sunlight
d. amount of sand in the soil

Look at the following answer choices and determine which belongs in the both category. testable, can be disproven explains natural phenomena, has evidence to support it prediction, tentative, one or more scientists working together well established, many different scientists working independently, highly reliable

Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth

How many major plates cover the earth