What method would be the best choice for a climatologist to find out what the ocean temperatures were like during the Pleistocene ice ages 30 million years ago? A. Analyze the tree rings of petrified wood from the Pleistocene.

B. Analyze alkenones molecules of phytoplankton in rocks of that period.

C. Analyze ice core samples from pleistocene glaciers.

D. Analyze O-18 ratios from Antarctic glaciers.

If a human has 23 pairs of chromosomes in every muscle cell of its body how many chromosomes will be in a human egg or sperm

How and why organisms are hierarchically classifies

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.