Nicotine, a substance found in cigarettes, causes blood vessels to constrict. What effect might prolonged smoking have on the body? A. Decreased heart rate B. Decreased heart strength C. High blood pressure D. High blood volume

In which ways are RNA and DNA different? a. RNA has ribose sugar, DNA has deoxyribose sugar b. RNA has uracil, DNA has thymine c. RNA is single-stranded, DNA is a double-helix d. all of the above

Nucleosomes are a. the dna-protein structures which can leave the nucleus b. area of the nucleus where dna is being repaired c. a length of dna wound onto a histone protein d. chromosomes which carry information about nuclear membranes

Breaking down food and making energy for our body involves many chemical reactions. Which characteristic of life is this related to? Your answer: Growth and development Evolution Reproduction Metabolism Homeostasis Heredity

What method of supportive care is most critical during a brief surgery with minimum blood loss?

Descibe what happens to body systems over time from infancy to adulthood to older adulthood?

What are the two places in a cell where i could find dna?

What does a neuron do if it receives inhibitory and excitatory impulses from neighboring neurons?

Infer why humans would not be able to repair and grow muscle without bacteria?

In the total darkness of a deep natural cave, what type of adaptations do you expect to see in animals?

Propose five ways in which the government can ensure that road accident fund benefits are given to deserving beneficiaries