Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Science Exam 4th

QuestionAnswer
What are the products of photosynthesis? Oxygen and sugars.
What happens during photosynthesis? The cell uses the energy in sunlight to make food.
How does photosynthesis benefit heterotrophs? It creates food that they can eat.
The stage of respiration that releases most of the energy in glucose occurs in the.. Mitochondria.
How are photosynthesis and respiration related? They have opposite equations.
Mitosis is the stage of the cell cycle during which... The cell's nucleus divides into two new nuclei.
During DNA replication, adenine (A) always pairs with... Thymine (T)
Each rung of DNA ladder is made of... A pair of nitrogen base.
If a Kestrel eats a mouse that eats grass, the kestrel is a... Second-Level Consumer.
The many overlapping food chains in an ecosystem make up a(n) Food web.
In an energy pyramid, which level has the most available energy? Producer Level.
Some bacteria that fix nitrogen live in bumps on the road of certain plants. These bumps are called... Nodules.
The study of where organisms live is called.. Biogeography.
The typical weather pattern in an area over a long period of time is called... Climate.
The first organism in a food chain is always a... Producer.
Which ecosystem is found where the fresh water of a river meets the salt water of the ocean? Estuary.
Fossil Fuels are considered nonrenewable resources because they... Take hundreds of millions of years to form.
what is the most widely used source of renewable energy in the world today? Hydroelectric power.
The spitting of an atom's nucleus into two smaller nuclei is called... Nuclear Fission.
The combining of two atomic nuclei to produce one larger nucleus is called... Nuclear Fusion.
Efficiency is... The percentage of energy that is actually used to preform work.
What did Gregor Mendel do to study different characteristics in his genetics experiments? He cross-pollinated plants.
Factors that control traits are called... Genes.
If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb), what is the probability that an offspring will have black fur? 100%
A purebred chicken with white feathers is crossed with a purebred chicken that has black feather. Each of their offspring has both black and white feathers. Why does this happen? The alleles for feather color are neither dominant nor recessive.
What happens during meiosis? Chromosome pairs separate and are distributed into new sex cells.
Created by: TaccyTricia
Popular Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards