The life expectancy in the US increased more than 30% from 1930 to 2015 which factor could have contributed to this increase a better medical facilities and treatments be decreased Farmland C increased food insecurity D refusal of vaccines

True or false meiosis produces somatic cells like eggs and sperm cells

The current model of the atom suggests that A) an electron cloud surrounds the nucleus. B) a proton cloud surrouds the nucleus. C) electrons travel in a definite path around the nucleus. D) the exact path of a moving electron can be predicted

While plant and animal cells have structural similarities, they also differ in a few ways, including in shape. Plant cells tend to be rectangular and have distinct edges, while animals cells widely in shape and tend to have rounder, more fluid edges.

The gametophytes of gymnosperms are found inside reproductive structures called a. flowers. b. cones. c. embryos. d. ovules. *In gymnosperms, the female gametophyte develops inside the a. seed. b. pollen cone. c. pollen grains. d. ovules.

Which one of the following choices most accurately describes the difference between anaerobic and aerobic reactions? a. anaerobic reactions require oxygen and aerobic do not. b. aerobic reactions require oxygen and anaerobic do not. c.

Explain why populations tend not to continue to increase exponentially in an environment

Activation of the sympathetic nervous system question 13 options: a. increases respiration and decreases salivation. b. increases respiration and increases salivation. c. decreases respiration and increases salivation. d.

Which hummingbird adaptation is most advantageous for supporting their high metabolism? a. entering torpor b. long beak and tubular tongue c. ability to hover d. migration

Ames is an 87-year-old man who underwent a hip replacement today. he is telling the nurse that his parents, who are deceased, are coming to visit him today. he continues to tell the nurse that he needs to cut the lawn and run errands.

The Hershey and Chase experiments involved the preparation of two different types of radioactively labeled phage. Which of the following best explains why two preparations were required? A. The bacteriophage used in the experiments was a T2 phage. B.