Scientists have concluded that human activities are affecting the atmosphere and causing rapid climate change on a global scale. which statement provides the strongest evidence that these changes to global climate are not the result of natural causes, such as variations in earth's orbit?

The first signs of cellular differentiation occur in the blastocyst. why is cellular differentiation important for the development of a fully formed human infant?

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

What is used to keep track of the gamates and possible offsprings combination