The South Florida snake is likely extinct. What most likely happened at some point in the past? A) Changes in the environment occurred, and the snakes could not adapt. B) The South Florida rainbow snake never had the right kind of adaptations to survive. C) Changes in the environment occurred, and the snakes adapted very well. D) The South Florida rainbow snake did not use sensory information to its environment.

What factors threaten the existence of nonhuman primates in the wild? What can you do to help save nonhuman primates from extinction? Why is this important for society?

Which statement is NOT true about the early hominins: A) The angle of the foramen magnum on Sahelanthropus tchadensis ("Toumai") indicates a vertically oriented upper neck, a clear sign of bipedalism. B) The reconstructed skeleton of Ardipithecus ramidus ("Ardi") suggests she was adapted for bipedal walking and climbing in trees. C) Early hominins such as Sahelanthropus and Ardipithecus had small, chimp-sized brain. D) All of the above are true.

Which is/are the most phylogenetically close to humans based on the tree above? I) lizard     II) duck III) both equally close

You are a Triassic dinosaur. Which of the following would you have been able to do? a) Eat an 8m tall fungus b) Eat a fruit c) Eat cycad seeds d) Stomp on some rotten wood e) Pollinate a flower

Fingers and toes would be an ancestral feature in land vertebrates. A) True B False

Reptiles faced a number of challenges as they moved farther away from sources of water. (Similarly, to amphibians).A.) what were some of the challenges reptiles faced?B.) and how did they overcome those challenges? (Evolutionary, adaptation...)

explain how humans are related to each of the following animals by indicating the level of relatedness and which traits are evidence for this level of relatedness a) lamprey b) sea star c) beetle

According to " Denisovans: Decoding the Secrets of Our Mysterious Ancient Cousins”, what is the most likely reason that the Denisovans became extinct?    A.Homo sapiens expanded into the territories that Denisovans lived, and used up the food and land resources in that area. B.Woolly mammoths expanded into the territories that Denisovans lived, and used up the food and land resources in that area. C.Predators expanded into the territories that Denisovans lived, and they killed off the Denisovans. D.Homo sapiens expanded into the territories that Denisovans lived, and killed off the Denisovans.

How would Darwin explain the emergence thick, strong beaks in birds living in an area with only hard shelled seeds?    a) God designed the birds with thick beaks to allow them to easily break open the shells.   b) When only shelled seeds are around, birds are constantly working their beaks to break these shells. Over time this strengthens their beaks. Birds that have strengthened beaks pass this trait on to their offspring.   c) Birds with the thickest strongest beaks find the most food on these islands. Because they are well fed they survive, reproduce and pass on this trait. Birds with less strong beaks are less likely to survive.   d) The birds need a thick strong beaks to break open shells so they made them over time.