Author Question: Kyle plants a group of seeds in a pot of enriched soil, and provides all the seeds with identical ... (Read 186 times)

chandani

  • Hero Member
  • *****
  • Posts: 541
Kyle plants a group of seeds in a pot of enriched soil, and provides all the seeds with identical temperature, lighting, and water. When his plants are mature, he notices that they are quite different in height. Which of the following is the best conclusion Kyle could draw from his observations?
 
  a. The differences in the height of his plants are due to equal contributions of environmental and genetic variables.
  b. Holding the plants' environment constant has magnified the influence of genetic differences on the height of the plants.
  c. Genetic variables are more influential than environmental variables in determining the height of Kyle's plants.
  d. Kyle lacks sufficient information to draw any scientific conclusions from his observations.

Question 2

Muscle fibers respond to
 
  a. serotonin.
 b. glutamate.
 c. dopamine.
 d. acetylcholine.



CourtneyCNorton

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

b

Answer to Question 2

d



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

For a complete list of videos, visit our video library