Answer:
Cells need energy or ATP to keep us alive. We also need it to keep our hearts pumping.
Explanation:
Answer:
A. True
Explanation:
Yes, the plants use cellular respiration. So, option (A) is the correct answer.
Pangaea began to break up into smaller continents, during the Mesozoic Era.
2. Look for a layer of sediment that is full of iridium.
This layer would represent the asteroid that scientists think hit Earth. The layer is the boundary in rock layers between the Cretaceous and Tertiary Periods.
Answer:
B. a true-breeding plant
Explanation:
A true-breeding plant is a plant that produces offspring that are identical or has the same traits from generation to generation when they are self-fertilized. A true-breeding plant is usually two alleles that are identical or the same for a trait, and during a genetic cross, only one allele of a trait can be transferred from generation to generation, and as such, the offspring they produce would display phenotypes that are either homozygous dominant or homozygous recessive to that trait.
Just as stated in the example given in the question, the plant that generates pink flowers upon self-pollination from generation to generation, can be referred to <em>a true-breeding plant.</em>
Answer:
Eggshells are made of calcium carbonate. If you soak an egg in vinegar the eggshell will absorb the acid and break down, or dissolve. The calcium carbonate will become carbon dioxide gas, which will go into the air.
Explanation:
It will bounce.
I believe that it is testable because you can do it at home.
Independent variable is vinegar.