The image shows a portion of the fossil record that spans several million years. In the image, the numbers designate different rock layers, with the number 1 corresponding to the oldest rock layer.
What statement provides the best explanation for the change in the species between rock layer 1 and rock layer 2?
A.
The original species died out, and several new species evolved that were better suited to the environment.
B.
An abrupt change in the environment caused the original species to evolve into several new species.
C.
The original species hybridized with a single new species, resulting in a variety of species.
D.
Humans introduced several new species into the environment after the original species had died out.
Answers: 2
Biology, 22.06.2019 14:30, kiwe595
Which statement is not an accurate description of meiosis? a) meiosis produces offspring that are genetically diverse. b) meiosis produces offspring that are identical to the parent. c) in sexual reproduction half of the genetic material comes from the father (sperm) and half of the genetic material comes from the mother (egg). d) meiosis decreases the number of chromosomes by half so that when a sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes.
Answers: 1
The image shows a portion of the fossil record that spans several million years. In the image, the n...
Mathematics, 17.10.2019 16:20
Mathematics, 17.10.2019 16:20
Mathematics, 17.10.2019 16:20