Biology prep test 3rd period

What is biological evolution?

• acquired traits for the next generation

• gradual change of species into more complex ones

• survival of the fittest

Fixist theory states that......

• Gradual change happens over time and inherited for the next generation

• The more you use an organ, the more it will develop

• body plan of organism doesn't change, they are perfect

when there is a change in the environment , the organism also changes , this change is always BENEFICIAL

• Adaptation

• Fitness

• Natural selection

if my parents are good at playing the piano, then, according to lamarck i will be a good piano player as well

• Use and Disuse

• Adaptation

• Acquired traits

different physical traits present in a population

• Variation

• Adaptation

• Fitness

if i have a white forest, and two populations of moths: WHITE and BLACK , which one will survive and why according to natural selection?

• Black will survive because it is the only population with the higher FITNESS because they can camouflage better with the environment and the offpsring will have this variation

• White will survive because they have an advantage with the environment and inherit that variation to their offspring

Darwin is the only scientist who contributed to the Natural Selection theory

• True

• False

what all evidences of evolution have in common?

• to prove the common ancenstry in organisms

• to demonstrate we evolved from chimpanzees

• to prove how animals have changed in previous years, it is like a record or history of the organisms

what is homology?

• when structures or body parts have the same origin but different function

• when structures or body parts have the same function but different origin

• when structures or body parts do not have the same origin but the same function

embryology is considered evidence of evolution because...

• it show a similarity in the embryos between organisms

• it shows how different embryos have different origins or ancestry

• it shows how the DNA of embryos is very similar between each other