Bees and some birds can see ______
a. infra-red light c. x-rays
b. ultra-violet light d. sound vibrations
B
You might also like to view...
Regarding current sexual trends among young people, which of the following statements is FALSE? a. Adolescents and young adults have always engaged in sexual experimentation and exploration
b. Most young people emerge unscathed from their explorations if they clearly understandthat their encounters are casual and practice safe sex. c. Casual sex is often viewed by young people as easier than facing the challenges of romantic attachment and finding a lifelong partner. d. The sexual script in which friends have sex but aren't romantically involved is called the hook-up script.
In recent years, the number of deaths due to AIDS has begun to drop. What is the major reason for this drop in deaths?
a) development of drug combinations that retard HIV activity b) development of genetically-altered forms of HIV that can reduce its rate of reproduction in the body c) use of experimental treatments in which the blood is heated to kill HIV before it is returned to the body d) use of a combination of surgical interventions and dietary changes that lower the rate of HIV development
Downward social comparison protects children's self-esteem
Indicate whether the statement is true or false
To soothe a crying baby, most Western parents usually try
A) swaddling the baby. B) infant massage. C) lifting the baby to the shoulder. D) taking the baby for a walk in a carriage.