Which statement about biomes is true? A. Different biomes share similar plants and wildlife.
B.)Each biome has only one ecosystem.
C.)There are only three biomes on the Earth.
D.)Biomes are determined by climate zones.

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

An ecologist is studying the effects that a population of predators is having on a population of a prey. he used data from the field to produce this graph. which conclusion can draw from the graph?