How does competition increase stability in an ecosystem?
a a decreases biodiversity
b it keeps population balanced
c it causes cyclical disturbances
d it removes keystone species

(drag each tile to the correct identify which questions can be answered by what can be answered by science or which cannot. -is it right or wrong to use genetic engineering to produce new food products? -what are the most common social settings that tend to produce accomplished artists? -if a new gene is added to the genome of a tomato species, will that species be more resistant to insects? -should humans use biotechnology to bring extinct organisms from the fossil record back to life? -do the types of organisms found in the fossil record appear in consistent sequences in different parts of the world? -are michelangelo's paintings more impressive than rembrandt's?

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?