Homework answers / question archive / Section 1 - Significance of Natural Selection Give an example of "chemical ancestry" shared by two different organisms: we all use some chemical mechanism, with in our ellis embryo DNA from a selly Rish will work when inserted into a mouse, Define evolution: Orpomism are constantly changing to fit their enveronmend Define the Theory of Natural Selection: the mechanism by which populations change er bnA - 3 nolfos? Return to the program

Section 1 - Significance of Natural Selection Give an example of "chemical ancestry" shared by two different organisms: we all use some chemical mechanism, with in our ellis embryo DNA from a selly Rish will work when inserted into a mouse, Define evolution: Orpomism are constantly changing to fit their enveronmend Define the Theory of Natural Selection: the mechanism by which populations change er bnA - 3 nolfos? Return to the program

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Section 1 - Significance of Natural Selection Give an example of "chemical ancestry" shared by two different organisms: we all use some chemical mechanism, with in our ellis embryo DNA from a selly Rish will work when inserted into a mouse, Define evolution: Orpomism are constantly changing to fit their enveronmend Define the Theory of Natural Selection: the mechanism by which populations change er bnA - 3 nolfos? Return to the program. IT TOVO noll What are two main ideas in Charles Darwin's theory that made it significantly different from other theories of the time: 1. Variation in the population is the key to changing the species is very hard to detect in natural selection but it's the basis of Natural Selection 2. the change in a population taxes many, many generations. Careful measurements must be mede over many generations Uslarnoo Noqu Define each of the three types of adaptations: can be seen on the organism , such as long Physical adaptation while her for cold enverommend internal body chemistry, such as being Physiological adaptation able to eat and digest tough woody plant tissue reactions to stimuli, such as assuming Behavioral adaptation threat posture to scare away predators. These adaptations are characteristics that an organism is born with that allow it to survive in a particular environment. An example of a physical adaptation is having a color pattern that makes you invisible to predators. What is this quality called? What is an alternate definition of evolution? / luge beManeremained farve 130- The change in pene frequency over time outeuro fallons to elamaxe no svice Record the term that goes with each of these definitions: A group of interbreeding members of the same species in an area population The appearance of an individual pheno type The combination of genes in an individual genotype 13.2