Which of the following best describes similarities that exist between birds and mammals? They are both endothermic and have four-chambered hearts They both have specialized lungs and sweat glands for cooling They are both vertebrates that have specialized teeth for grinding food They both undergo internal fertilization and have mammary glands to nurse their young Question 3 Multiple Choice Worth 3 points) 106 04 MC) Question 1 (Not Answered)​

What makes the results of a scientific experiment accurate? a) having multiple trials b) lacking any supporting data c) working in a lab d) using a hypothesis that is always true

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.