What is a mutation? А: A process used in genetic engineering.
B :A type of continuous variation.
C: A condition caused by a dominant allele.
D : A change in a gene.

Which one of these is a mutation?

The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

In which state was more than 100 billion tons of coal mined in 2005?