40. How many phyla is the animal kingdom divided into? A. Nine
B. Twenty
C. Sixteen
D. Twenty-six

Which organelle breaks down sugar molecules that supply energy to the cell ?

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.