Answer:
Human lung capacity can be measure in several ways. One way is by using a piece of laboratory equipment called a respirometer or spirometer. A less accurate (but very sanitary) method to measure lung capacity is by using a balloon. Procedure A: VITAL CAPACITY 1. Blow up the balloon several times to stretch it before beginning to take measurements.
Explanation:
Answer:
– Natural exposure to infectious agent stimulates your own B cells to produce antigen-specific antibodies – Artificial immunization (vaccination) with key antigens or epitopes from an infectious agent does the same thing – Active immunization results in immunologic memory (more vigorous response next time)
Explanation:
Answer: Steam burns the skin worse than hot water because the heat of vaporization is released as well.
Explanation:
The steam exhibit more energy than water at the same temperature that is 100° C. The steam uses the latent heat of vaporization so as to get vapourize and water do not exhibit energy. This latent heat of energy causes severe burns due to steam as compared to water. Steam burns are caused by the heat of vapors and they form scalds.
Answer:
Geneticists use their own unique shorthand when analyzing the results from a genetic cross (a mating between two organisms with characteristics that scientists want to study). For example, they might use a letter of the alphabet to stand for each gene, capitalizing the letter for dominant alleles and using lowercase to represent recessive alleles. The same letter of the alphabet is used for each allele to show that they’re variations of the same gene.
