According to the law of conservation of matter, what is the number of Fe atoms needed to complete the following reaction? 2Fe+ 302 2Fe,
Ο Α. 1
O B 2
O C3
O D. 4

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above