Ammonite is a species of shellfish that is used as an index fossil. It has a distinct spiral shell. Which statement most likely explains why other
species of shellfish that existed around the same period of time are not considered Index fossils?
A.
Other shellfish did not contain the carbon-14 Isotope.
B.
Other shellfish were much smaller in size than ammonites.
C. Other shellfish were not as widespread as ammonites.
D. Other shellfish did not have a rigid external body, like ammonites.

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.

How is transcription similar to translation in terms of base pairing?

16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.