An ancient fossilized fish has been found in a layer of rock. What is most likely true for the layer of rock?
A. It formed in a glacier.
B. It consists of sedimentary rock.
C. It consists of igneous rock.
D. It formed a few years ago.

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

The deserts of the sahara and australia are associated with

When mendel crossed a true-breeding short plant with a true-breeding tall plant all the offspring were tall. which term describes the gene for tallnes?