Josie is a cross-country runner. She completed a cross-country race 8 hours ago and has been sipping water since then. When she goes to the bathroom, she notices that her urine is dark in color. This is most likely a sign of:
A) blood in the urine.
B) inadequate hydration.
C) lack of protein in her body.
D) sports anemia.
Question 2
Which of the following is true of micronutrients?
A) Athletes who avoid animal-based products are at increased risk of inadequate intakes of several micronutrients.
B) Micronutrients consist of carbohydrates, proteins, and lipids.
C) Glucose and sucrose are the primary energy-yielding micronutrients that fuel activities with high energy demands.
D) Exercise decreases the requirement for micronutrients in the body to a great extent.
Fallow deer at Avon Valley Country Park, Bristol, England
The Punnett square of a dihybrid cross demonstrates Mendel’s law of independent assortment.
Steady State in the Two-Country Model
Opener A colorized cross section of the human brain
Artificial cross-fertilization of pea plants
Pollen accumulates on the feathers of a little wattlebird (Antho-chaera chrysoptera) sipping nectar