Wanda and Marita are drinking bottles of water. Each girl sounds a different musical note by blowing across the top of her bottle. What is a good hypothesis that could lead to new experimentation?

Ned is designing an experiment to test which hand sanitizer kills the most E. coli bacteria. In order for Ned's results to be valid, what must he do? A. test each hand sanitizer on different days and at different times of the day B.

In which situation is an object accelerating? A. A car is parked on the side of the street. B. A bicycle travels at a constant velocity down the street. C. A rock's velocity increases from 5 m/s to 10 m/s as it falls down a cliff. D.

Sort the features and characteristics by the groups they are found in. metamorphosis amniotic eggs ectothermic scales spinal cord gills in adults lungs in adults external fertilization

What was the difference between the estimated versus actual forced vital capacity? When might it be useful to use the estimated numbers instead of measurements?

Consider a human with a genotype aabbccddeeffgghh. how many different types of gametes could this individual produce, assuming that all of the genes are on separate chromosomes?

What is one method of sterilization of males where under local anesthesia a portion of this duct is removed and two ends are folded over and either staples or sutured shut called?

The carbon cycle is a cycle among the carbon reservoirs. What is a carbon reservoir and what are some examples?

If thermohaline circulation were blocked, perhaps by plate tectonics, what would happen? Nothing would change. Global climate would be significantly affected. Coastal areas would warm up. There would be an increase in precipitation.

What is happening when the cells start to swell up with water?

What phase of mitosis occurs when the doubled chromosomes are pulled apart by the centrioles? A. Anaphase B. Interphase C. Metaphase D. Telophase