Show:
Genetics
Cell Differentiation
Enviornment and Change over Time
Body Systems
Evolution
100
What is genetics?
The study of heredity, genes, etc.
100
What is cell differentiation?
Cell differentiation is when the cells turn into something different.
100
What are the 3 types of adaptions(with examples)?
Structural- a giraffe's long neak Behavioral- when punguins huddle Funtional- when a bear hibernates
100
Put in order from largest to smallest: tissue, organ system, cell, and organ.
Cells, tissue, organ, organ system.
100
Who descovered the theory of evolution?
Charles Darwin.
200
What is the difference between phenotype and genotype?
Phenotype is what the organism looks like and genotype is what the organism is made of (its genes).
200
How does cell differentiation work?
Cell differentiation works by different cell types use different instructions on the chromosomes.
200
What is the difference between camofluage and mimicry?
Camoflauge is when an organism blends in with its surroundings and mimicry is when an orgainsm resembles,mimicks, another organism.
200
What are the 4 major types of muscles found in animals and what are their jobs?
Muscle: helps you move. Connective: hold all of your bones and muscles together. Nervous: sends messages to you brain to help you react. Epithelial: is a protective outer layer of your skin and organs.
200
What is artificial selection?
Artificial selection is when you breed organisms for desired characteristics.
300
DNA codes for the making of proteins, but what role does RNA play in the process?
RNA carries out instructions to the brain.
300
What are stem cells?
Stem cells are unspecialized cells that are able to develop into many different cells.
300
From largest to smallest, what are the subdivisions of geologic time called?
Eons, eras, periods.
300
What are the 4 chambers?
1. right atrium 2. left atrium 3. right ventrical 4. left ventrical
300
What is natural selction?
Natural selection is when organisms with variations mate with another organism and reproduce.
400
What is a punnett square?
A tool that helps you figure out an organism's genes.
400
Why are stem cells so important?
Stem cells are so important because they can be used for cell repairs and replacements. If I was to become very sick stem cells can help repair and replace the damaged cells.
400
What is a homologous structure? Give an example.
Homologous structures look the same, but do different functions. Example: A bird's wing and a penguin's wing. They look the same, but a bird's wing helps the bird to fly and the penguin's wing helps the penguin to stay balanced ans swim.
400
What does a ball and socket joint help you do?
It allows bones to move and rotate in nearly all directions.
400
Darwin noticed that animals on the different islands of the Galapagos appeared to be adapted to what?
They appeared to be adapted with their food sources.
500
What is the allele that gets overpowered?
The recessive allele.
500
How can you tell when cell division is happening?
You can tell becuase the fertilized eggs will seperate and become something new. (i.e. nerve cell, red blood cell, bone cell, muscle cell).
500
Define the term mass extinction.
Mass extinction is when a large amount of an organism is gone in a short amount of time.
500
Why is the septum so important for the heart to work as it should?
It keeps oxygen poor-blood on the left side of the left side of the heart and oxygen- rich blood on the right side of the heart so they don’t mix.
500
Debbie wrote a comic strip for her project on evolution, and claimed that giraffes have long necks because one giraffe in particular wanted to reach food that was at the top of some very tall trees. What mistake did Debbie make and what should she have said instead?
Debbie should have said that the reason why the giraffes have long necks is not because they wanted to reach the food at the top of tall tree, but she should have said that the reason they do have long necks is because of their genes. If the parents both had dominant genes then the giraffes will have a very likely chance to have dominant genes as well.