Fossil Eval
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| What does it mean for a species to become extinct? | A species becomes extinct when the final member of the species dies and there are no surviving offspring
🗑
|
||||
| What could cause extinction? | Environmental change
Loss of food source
Disease
Etc.
🗑
|
||||
| What is a fossil? | A fossil is the preserved remains of a species that lived in the past
🗑
|
||||
| Give three examples of things that could become fossilized. | A footprint
A piece of bone
A tooth
🗑
|
||||
| How do fossils help scientists collect evidence that evolution has occurred? | Fossils allow paleontologists to understand when former species lived as well as make observations and inferences about the way they lived.
🗑
|
||||
| What type of scientist studies these fossils? | Scientists that study fossils are known as paleontologists
🗑
|
||||
| What types of life are the oldest on Earth? Single-celled or multi-celled? | Single-celled organisms are the oldest forms of life on the planet.
🗑
|
||||
| What does “diversity of species mean? | Diversity of species means there are many different kinds of organisms
🗑
|
||||
| What is natural selection? | The process whereby organisms better adapted to their environment tend to survive and produce more offspring.
🗑
|
||||
| How long does this process usually take? | The process usually takes thousands of generations to see an effect
🗑
|
||||
| What is an observation? | OBSERVATION:
The act of viewing or noting something with one of the senses (see, hear, smell, taste or touch)
It is a fact
EX. The footprint has 3 toes
🗑
|
||||
| What is an inference? | INFERENCE:
A proposed conclusion based on an observation
It does not always have to be correct
EX. After looking at fossilized footprints you decide the organism had started to run
🗑
|
||||
| TRUE or FALSE: Humans have had no impact on the evolution of other species. | FALSE: Humans impact the evolution of other species in many ways
Hunting
Habitat Destruction
Pollution
🗑
|
||||
| What is genetic variation? | Genetic variation is differences that are caused by an organism’s genes
Variation is usually caused by a MUTATION in the organism’s DNA
🗑
|
||||
| What causes this variation and how does that lead to natural selection? | This variation allows certain individuals to be better suited for their environment and have a higher chance at reproducing and passing their genes to their offspring.
Ex. The beige worms were easier to see so they got eaten in Activity 91
🗑
|
||||
| What is a mutation? | A mutation is any change in an organism’s DNA
Typically these mutations occur during the fertilization
Ex. A hornless cow gives birth to a cow with horns
🗑
|
||||
| How do mutations affect an individual? | Some mutations are beneficial and lead to organisms having a greater chance at reproduction
EX. 4 tined beak
Some are harmful and do not help an organism
Ex. genetic disorder
Some have no effect on the organisms
Ex. different color coat on a dog
🗑
|
||||
| What is the difference between an acquired and inherited trait? | Acquired Traits:
Traits that an individual gains during the course of their life that are not genetic
Inherited Traits:
Traits that are determined by an individual’s genetic makeup and are determined during fertilization
🗑
|
||||
| Which type of trait gets passed to offspring? | Genetic Traits are passed to offspring during sexual reproduction
🗑
|
||||
| If two species have DNA that is very similar they are (MORE or LESS) closely related | If two species have very similar DNA they are MORE closely related than individuals with DNA that is not similar.
This means they shared a common ancestor relatively recently
🗑
|
||||
| Describe bacterial resistance using natural selection. | When bacteria are resistant to a certain antibiotic, they reproduce with their offspring having the same resistance
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
JayDubs777
Popular Science sets