Show:
Parts of Plants
How are Traits Inherited
Mutations, Genes, and Health
How Traits Are Passed
Potpourri
100
What is a vascular plant and what is a nonvascular plant?
What is a vascular plant has specialized tissures that transport materials throughout it. A nonvascular plant lacks stems, leaves, and roots, the structures that transport food, water, and other materials between plant parts.
100
What is the word that means the process through which traits are passed from parents to offspring?
What is heredity.
100
What is a mutation, and what causes mutations?
What is a mutation is an error during the process of DNA replication. Environmental factors called mutagens can cause mutations.
100
What are the two types of reproduction, and how many parent cells are needed in each type of reproduction for new offspring to be produced?
What is asexual reproduction, which needs one parent cell to reproduce, and sexual reproduction, which needs to parent cells to reproduce.
100
What is an adaptation?
What is an adaptation is any trait that helps an individual to survive in its environment.
200
What is the difference between xylem and phloem tissues?
What is xylem tissues conduct water and minerals upward from the roots. Phloem tissues conduct food downward from the leaves to the rest of the plant.
200
Name two ways you can get a trait.
What is you can aquire a trait and get it passed to you through your parents' DNA, you can learn a trait like riding a bicycle when you get older, you can get them from your environment, or you can inherit a trait that you only acquire under the right conditions (like tallness, for example).
200
What are three kinds of mutations?
What is harmful mutations, which hurt you, benificial mutations, which are rare, and mutations that neither harm you nor hurt you.
200
What are two types of asexual reproduction?
What is budding, which is when more parts of a creature grow on the side of the creature, and regeneration, where animals and plants grow back lost body parts. We also have cutting, when parts of a plant are cut off the main part of the plant and planted in another spot to make a new plant.
200
What are three types of adaptations? describe each one.
What is camouflage, which helps organisms blend in to their environment. Annother one is warning coloration, which shows that an organism is poisonous. Mimicry is the ability to look like another species or to copy another species' way of lving.
300
What are two types of vascular tissue?
What is xylem and phloem tissue.
300
What are the three stages of cell theory, and what happens in each stage?
What is interphase, where the cell duplicates the forty six chromosomes needed to produce one cell to 92 chromosomes for two cells. Stage two is Mitosis, in which cells divide to produce new offspring. Step three is Cytokinesis, when the cell evenly distributes cytoplasm or what holds organelles in place in to the two new cells.
300
How does technology improve selective breeding?
What is food additives can help hens lay more eggs or help animals to produce more food. Computers help us to document the process of selective breeding and the results achieved when we breed certain animals.
400
Through which process do plants carry water up through the stem to the leaves? Tell me what this process does.
What is the tension cohesion theory. This just means that water sticks to a plant through cohesion and then pressure is applied to the plant through tension to pull the water up through the plant.
400
What are the four nucleotide bases?
What is adenine, cytosine, guanine, thymine.
400
What is hemophilia?
What is hemophilia is an inherited disease that prevents the body from producing clotting factors. People keep bleeding.
400
What is the intended result of selective breeding?
What is to breed animals for desirable traits.
400
How can we tell if a tree gets a lot of water?
What is a tree's rings are wider when it gets a lot of water. Narrow tree rings mean that it is not getting a lot of water.
500
Tell me the order in which water travels through various parts of a plant. Also tell me what this process is called.
What is the process is called transpiration. Water travels from soil, through the roots of the plant, to the xylem, to the xylem in the stem, to the xylem in the leaf, and then outside the plant in to the atmosphere.
500
What are the steps necessary for DNA to replicate itself?
What is first, DNA seperates along its nitrogen bases. Second, the nitrogen bases pair up with other loose nitrogen bases that have similar traits. When all loose nitrogen bases are paired up, a new DNA molecule is made.
500
Name three types of genetic disorders caused by mutations in a gamete? Tell me a little bit about each one.
What is cystic fibrosis, which makes mucus extra thick and sticky, so your lungs are clogged and you have trouble breathing. Muscular dystrophy, which is where your body can't make protein for muscle cells. Your muscles grow weak over time. Lastly, we have sickle cell anemia, where blood cells shaped like sickles block other cells in the bloodstream and don't carry as much oxygen as you need to function.
500
What are two possible effects that changes in environment can have on a species?
What is some organisms with traits that don't let them survive in a new environment die, and some adapt to the new environment and develop new ways of living.
500
How can we tell how old a tree is?
What is by counting the number of rings on a tree.