You are a scientist working on an experiment with plants in order to test Mendel's findings. You know that he selected true-breeding varieties because they all have offspring exactly like the parents. Why is this an important factor in these experiments? -Using True-breeding varieties allows you to track a specific plant variety and not have characteristics of other plants interfere with your data.
-Using True-breeding varieties allows you to know that you don't have mixed-breed of plants types.
-Using True-breeding varieties is cheaper and more cost effective than using a fancy type of plant
-Using True-breeding varieties allows you to trace traced the inheritance of individual traits from parents to offspring, with certainty that no other factors are influencing the outcome.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

plants absorb water from the soil by osmosis. root hair cells are adapted for this by having a large surface area to speed up osmosis. the absorbed water is transported through the roots to the rest of the plant where it is used for different purposes: it transports dissolved minerals around the plant.