HELP ASAP According to the diagram, which two groups of organisms are most closely related?
> BASAL
VERTEBRATES
FROGS
AMPHIBIANS
SALAMANDERS
CAECILIANS
> REPTILES
> BIRDS
AMNIOTES
> MAMMALS
Frogs and Salamanders
Reptiles and Birds
Birds and Mammals

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

Getting out of bed is the first goal i tackle each day. 2several small goals are achieved by me as the day progresses. 3when i am riding the bus home or walking the dog, i think about the bigger goals i have for my life. which statement correctly describes the verb tense, aspect, and voice in this paragraph? a.sentences 1 and 2 contain present progressive verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice. b.sentences 1 and 2 contain simple present verbs. sentence 3 contains present progressive verbs. all three sentences use active voice. c.sentences 1 and 2 contain present progressive verbs. sentence 3 contains simple present verbs. all three sentences use active voice. d.sentences 1 and 2 contain simple present verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice.

What causes darkening of the skin as melanin production increases