Which of these describe(s) variation within a species or population? A population is defined as members of the same species living together in the same area and who are likely to breed with each other. A-hummingbirds have beaks able to collect nectar from flowers while woodpeckers have beaks able to collect insects from tree bark

B-polar bears have differences in the number of hairs per square inch of their skin

C-evergreen trees have needle-like leaves

D-fish use gills to obtain oxygen from water

subjective refers to personal perspective, feelings, or opinions entering the decision making process while objectives is the process that is purely based on hard fact, unbiased evaluation observation, independent from personal views.

A statement based on fact, which can be proved easily and is impossible to deny is called an objective statement while subjectivity is based on personal feeling, likes interest, dislikes etc. The differences between objective and subjective piece of information is embedded in fact and opinion.

Objective is provable, veritable and it is used for decision making while subjective is based on assumption, beliefs, opinions, non-verifiable, varies to a great person and from person to person.