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definitions
evolution and natural selection
Evolution 2
100
A Cladogram is: A) A new pokemon. B) A diagram which shows how organisms are related.
A gladogram is a diagram which shows how organisms are related. It is a little bit like a family tree.
100
"Natural" and "nature" are words that are related to each other. Selection is another way to say choice. Use this information to explain "natural selection" in a different way: "n________ c_________"
"nature chooses" In other words, the traits that allow an organism to survive are the ones which we should expect to see the most.
100
What does 'adapt' mean?
Adapt means change. Organisms change, or adapt, to their environment so that they can survive better in it. These changes are called adaptations.
200
Match the words with the definition: Terms- embryo, larva definitions: *A very young organism still inside a womb or egg. * The first stage of life, but living outside the womb or egg. Larvae usually undergo a change.
Embryos have not yet left the womb or egg. Larvae have left the womb or egg.
200
Would organisms be more likely to survive if their coloring was the same as their background or different?
Organisms are camoflauged when they are the same color as their background. This makes them more likely to survive because they will not be eaten.
300
What does metabolism mean?
Metabolism is the speed at which an animal turns food into energy.
300
If people were likely to survive at a certain weight and this were graphed, would the birth rate be high or low for this wieght? Would the death rate be high or low for this wieght?
If people were likely to survive, the birth rate would be high and the death rate would be low.
400
A mutation is a sudden, random change that effects an organism. This change happens in the blue print for the organism. What is the biological name for this blue print?
DNA; genes and chromosomes are also acceptable answers.
400
If two organisms are closely related, what should we expect to see when we look at the organism's DNA?
The DNA will look similiar.
400
Which group is most closely related: A) Trees, human beings, and dinosaurs. B) birds, foxes, fish C) Frogs, salamanders, and caccilians
C
500
Their are two things which cause organisms to change to their environment; Evolution is fueled by 2 different things. One has the initials N.S. The other has the initial M. Name on of these.
Evolution occurs through Natural Selection and Mutation.
500
Which of the following would be a reason to think 2 organisms are closely related? A) They live in the same type of area. B) Similiar structures are found in the bodies. C) They live at the same time on Earth. D) They both have DNA.
B
500
Why should we expect to mostly see organisms that are well suited to their environment? (For example, why does coloring blend in, and why do they usually need about as much food and water as is available in their ecosystem)
Organisms which are not well-suited to their environment die out. If they are not a good color for their background they are quickly eaten. If they can not adjust their metabolism, they will starve.