The list below shows the number of valence eelctrons in various atoms. Based on the information, which is the best conclusion about the
atoms?
Atom x: 1 valence electron. Atom y: 7 valence electrons Atom z: 8 valence electrons
O a
Ob
Ос
Od
Atom x is more table than atom z
Atom x is more stable than atom y
Atom y is more stable than atom z
Atom z is more stable than atom y Question 15

What best explains the inability for life to exist in earth early atmosphere

Suppose you use three different scale to weigh a bag of organges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of organges is 2.153 lb. which of the following best decribes these results?

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.