One of the scientists in the video compared ice cores to rings on a
tree. When you look at a cross section of a tree trunk, you can see
rings in it. These rings indicate the annual growth cycle of the tree.
Counting them reveals how many years the tree was alive. What did
the scientist mean when he said that ice cores are like tree rings?

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

Cells are adapted to preform specific functions. which of the following terms refers to this capability?

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.