Term
| The process through which species change over time is called? |
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Definition
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Term
| Natural Selection was the process brought forth by what individual? |
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Definition
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Term
This is the definition for what process?
"Members of a species that are best suited to their environment survive and reproduce at a higher rate." |
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Definition
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Term
| Explain the process of "overproduction." |
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Definition
more offspring are created than can possibly survive in hopes that a few will reach adulthood and reproduce.
The mother lays lots of eggs knowing most will die due to predators and disease. |
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Term
| What are 3 quality traits (characteristics) that might enable a sea turtle to survive and pass on its genetic material to its young ones? |
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Definition
1. run faster on land to ecape predators
2. good swimmer in water to escape predators
3. more intelligent
4. better camouflage for hiding |
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Term
| Natural differences in traits (characteristics) within a species is called what? |
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Definition
Variation
Humans are one type of species be we have alot of variety between us. We have many differences. |
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Term
| Variation (variety) within a species may occur when genetic material changes. This changing of genes is called what? |
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Definition
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Term
| When changed (mutated) genetic material is passed onto our young ones, this may give that young one a better chance of surviving in its environment. We call this a what? |
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Definition
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Term
Species do not have a choice in selecting what traits help them to survive. Fill in the blank to properly complete the sentence.
"The _______________________ selects the trait!" |
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Definition
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Term
| What do we call the evolution of a new species from a species that already exists? This is normally the result of being separated and isolated from the original species over a long period of time. |
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Definition
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Term
| Normally, you need what to happen before speciation can occur? |
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Definition
| the species should be isolated from its own kind |
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Term
| Name 2 types of barriers that might lead to speciation. |
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Definition
| mountains, valleys, rivers, oceans |
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Term
| Breeding two champion racehorses to try and produce a champion offspring is known as what? |
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Definition
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Term
| What changes within a organism that might cause evolution to happen? |
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Definition
| Genetic Material (genes are mutated or "changed") |
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Term
| In the early 1800's, the scientist Lamarck was convinced that species changed over time. What convinced him? |
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Definition
the fossil record
He noticed that fossils of the same species seemed to change over time (the length of giraffe necks, for instance) |
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Term
| To help come up with his Theory of Natural Selection, Darwin compared the differences he noticed in what particular animal on the Galapagos Islands? |
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Definition
finches (a type of bird)
He compared the differences of their beaks and the environments the birds lived on |
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Term
True or False
A species normally should be separated, and isolated, from its own kind before speciation can occur. |
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Definition
true
Through time, a species can develop into an entirely different species if given a new environment and enough time. |
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Term
True or False
A slight change in a tail fin may increase a fish's chance of survival by helping it swim faster to avoid predators. This trait was passed to this fish by its parents. This advantage passed on through genetic material is called adaptation. |
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Definition
True
Sometimes a mutation occurs that make an individual better able to survive than other members of the group. This inherited trait (characteristic) is an adaptation. |
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Term
True or False
If evolution is happening within each of us, then we should immediately see the reults. |
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Definition
False.
Many characteristics may never become "visible" and some take too much time for us to recognize any changes |
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Term
| The Theory of Evolution is not proven but, based on a broad range of observations and facts, it is generally accepted to be true. |
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Definition
True.
By examining fossil records (paleontology), DNA, biochemistry, mathematics, comparitive anatomy, and other scientific disciplines, through observations and facts, the theory is widely accepted. |
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Term
| When a gene is mutated it will never lead to changes in traits or characteristics in future generations. |
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Definition
False.
A mutated gene can, and should, lead to a change in traits of future generations. It could possibly show up in the very next generation! |
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Term
What term is being described?
Humans have changed in many ways since the days of the "cavemen." Through time, we seemed to be changing for the better. |
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Definition
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Term
What term is being described?
The structure that contains your DNA and, thus, your genes.
Humans have 23 pairs of these! |
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Definition
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Term
What term is being described?
If members of the same species get separated by some barrier for a long period of time, then future generations of that species may turn into a completely different species because of the differences in environments. |
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Definition
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Term
What term is being described?
A chemical, or radiation, or just a random genetic accident, changed or altered some of the boy's genes. |
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Definition
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Term
| What is another name for trait? |
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Definition
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Term
| Give two examples of variation within the human species. |
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Definition
| height, eye color, hair color, intelligence, male/female, ability to resist diseases, etc. |
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Term
Use the two descriptions below to name the process.
1. "The environment selects the trait."
2. example: If a lizard is eating red beetles only because the green beetles blend in with the leaves, then the red beetles will decrease in population and the green beetles will continue to reproduce and dominate the population. |
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Definition
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Term
What process is being described?
Long ago, wolves were selected for certain traits by humans (breeders) and were bred together with other wolves with the same characteristics. This eventually led to the many different breeds of dogs we see today. |
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Definition
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Term
True or False
1. A mutation of a gene in your DNA can show up as a new trait in your offspring.
2. If a new trait in an offspring can help it to survive in its environment, then we would call this an adaptation. |
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Definition
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Term
What term is being described here?
Many black seals were getting eaten by predators before they became adults because they could be easily seen in their snowy environment. The seal that inherited a white fur from its parents was able to survive to adulthood. |
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Definition
adaptation
Any trait that is inherited from parents that gives the offspring an advantage in their environment. |
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Term
Is this order correct or not?
Genes are found on strands of DNA which are located on Chromosomes which are found in the Nucleus of every Cell |
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Definition
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Term
True or False
Only your genetic material (DNA, Genes) determines your physical features, your personality, your behaviors, and your intelligence |
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Definition
False.
Your environment may play a part, as well.
(How you were raised, or where you were raised, what foods you eat, what chemicals are you exposed to, what climate you grew up in, etc etc.) |
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