Studying fossils gives scientists clues for all of the following except

a: the amount of protein in the extinct amimals diet
b: how living things change over time
c: the type of environment an extinct animal lived in
d: how extinct animals bodies functioned

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these