Pollution is the introduction of contaminants into the natural
environment that cause adverse change. Pollution can take the form of
chemical substances or energy, such as noise, heat or light. Pollutants,
the components of pollution, can be either foreign substances/energies
or naturally occurring contaminants. Pollution is often classed as point
source or nonpoint source pollution.
Hope this helps :p
Explanation:
villi are small finger like structures in the small intestine
Crossing over? That involves the random exchange of chromosomes.
Answer:
A. Population growth is decreasing
-2
+4
-10
-3
-8
-3
So the population decreased by 24 because 3+3+8+10+2=26-2=24.
Cells need to reproduce for growth, repair, or replacements. Cells divide whenever a tissue / organ / organism is growing or needs repair.
Hope this helps :)
