Ralph wanted to breed a pea plant that produced only purple flowers. He continued to breed purple-flower producing pea plants to
gether over six generations. The results of Ralph's selective breeding are shown above. What did the selective breeding do to the population of pea plants? A.
increased its genetic diversity
B.
decreased its genetic diversity
C.
caused a new species of pea plant to form
D.
caused a pea plant to exhibit a new characteristic
<h2>A trophic pyramid shows where most of the energy in an ecosystem can be found. Each level is called a trophic level and as you move up trophic levels 90% of the energy is lost</h2>
