Which of the following has the biggest impact on biodiversity in ecosystems?

a.) hatitat loss
b.)climate change
c.) invasive species
d.) overexploiting

What is the correct trna sequence that would match the following mrna sequence.gcgaua

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.