Which of the following structures would you expect to find in a single-celled organism?
a.
internal organs
b.
legs and feet
c.
outer covering
d.
large brain

This is a new idea, more effective device or process. this an be viewed as the application of better solutions that meet new requirements, inarticulated needs, or existing market needs. what's the term?

What is the primary goal of human communities?

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?