Lamarck’s theory of evolution includes the concept that new traits appear because: A. Use of disuse

B. The natural variations are present within a population

C. The environment is unchanged

D. Natural variation and natural selection

I’m stuck on this question cuz i’m stupid sksksksk

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

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey