Juan is studying fossils. his teacher wrote the following statements on the board and asked the students to put them in the correct order to describe how fossils are formed. 1. minerals seep into the organism’s body and replace it with stone. 2. the organism completely decomposes, leaving behind an imprint. 3. an organism dies and its body is covered with a layer of sediment. 4. time passes, and sediment layers continue to build up on the organism. which is the correct order of events for fossil formation?

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d.the size of the geographic area inhabited by a population can cause speciation.

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

Which of the following are not included as modern mammals that evolved during the eocene epoch? primates artiodactyls perissodactyls none of the above