Why is a dichotomous key called a dichotomous key?

Tissues of oleander plants contain chemicals that are poisonous to many mammals. The production of these poisonous chemicals most likely benefits oleanders by preventing leaf loss caused by (1) lack of rain (3) mineral absorption (2) scavengers (4)

At what age does the human brain reach 95% of its adult size?

Schizophrenia is a syndrome because: a. there are distinct symptoms that appear in every person, and symptoms do not fluctuate over time. b.

During which type of collision is none of the energy converted to sound energy

Ejemplos de proyectos de feria científica para sexto grado

Water can be returned to the atmosphere by a process know as what?

What is the root cause of heat stroke?

7. There is a narrow opening from the Mediterranean to the Atlantic called the Strait of Gibraltar. During World War II, submarines would sneak quietly through the heavily patrolled strait by shutting off their engines.

Suppose scientists have 2 substances that look alike. how could they use density to see if they are the same substance?

Lysogenic bacteriophages contribute to bacterial virulence because bacteriophages kill human cells. carry plasmids. kill the bacteria, causing release of endotoxins. produce toxins. give new gene sequences to the host bacteria.