Observation vs. inference?

Why is the blood that flows from the lungs toward the heart a brighter red than the blood that flows the other direction?

Very few cells are replaced in this organ system

If the larvae of a particular species of mosquito are to survive to the adult stage, the eggs must be laid in the trapped pool of water of the northern pitcher plant. The mosquito larvae provide no apparent benefit or harm to the pitcher plant.

Which term means an opening created by surgical traumatic or pathological means between two normally distinct organs or spaces?

The death of the plant was most likely due to

In which of the following does the last stage of digestion take place and is where water is absorbed into the bloodstream? a. small intestine c. rectum b. large intestine d. gall bladder

The effects of the sympathetic nervous system (sns) are divergent, meaning that a single stimulus can have an effect on a large number of targets. in other words, when the sns is activated, all of the organs it innervates are stimulated.

Which list shows the correct order of locations and steps in protein processing? A. 1. endoplasmic reticulum (protein modification) 2. Golgi apparatus (protein packaging) 3. ribosome (protein synthesis) B. 1. ribosome (protein synthesis) 2.

old grouth forests are full of sick, diseased and decadent trees?

When heating water the energy from the heat source is first used to break hydrogen bonds rather than raise the temperature, water absorbs and stores a large amount of heat while warming up only a few degrees. a) true b) false