Americans thought german submarine warfare was

a. ineffective.

b. unsophisticated.

c. uncivilized.

d. too restrictive.

What is the difference between science and non-science? A. Science is absolute knowledge B. Science is modified by observation C. Non science attempts to correct errors D. Non science proves natural phenomena

A population of birds live on an island where seeds are their primary food source. Birds with smaller beaks can eat small seeds more easily and birds with larger beaks can eat large seeds more easily.

Which bio molecule is made of amino acids

In what form is the energy that is absorbed by plants' leaves?

Which organism is a producer? A. oak tree B. mushroom C. mountain lion D. butterfly

What did the shift from hunting and gathering to gardening lead to?

In the human body, oxygen is absorbed by the lungs and nutrients are absorbed by the small intestine. In a single-celled organism, this absorption directly involves the 1. nucleus 2. chloroplasts 3. cell membrane 4. chromosomes

The big chunks of earth's crust (plates) slowly moved around. This is called?

N your own words, describe an interaction between the hydrosphere and the geosphere

what are three functions that are directly controlled by the cell membrane