A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms
During a flood, many individuals in a population of gophers drowned. Which effect of an environmental change does this best <span>illustrate? The answer is DEATH</span>
Answer:the result is evolution
Explanation: example it can be traced in Mesozoic era by modifications and removing of certain type of reptiles ie dinosaur
They could be described as recessive, dominant and codominant
What is this supposed to mean?
