Why does nicotine make your heart work harder

A plant scientist was hired by a greenhouse operator to devise a way to force iris plants to bloom in the short days of winter. Iris normally blooms as a long-day (short-night) plant.

What is the name of the aluminum ion? AA-1

A gardener was curious to see what type of tomato plant grows the most tomatoes in a growing season. If the gardener designed an experiment to test 3 different types of tomato seeds, the independent variable would be the and the dependent variable

1. A volcano spews out cinders and ash. What type of eruption is this? What is the amount of silica (high/low) in the magma?

In what part of organic compounds is energy stored?

What is the function of a gene?

Explain the anthropogenic (man-made) impact on the Carbon Cycle.

Species are subdivided into smaller groups called subspecies. For people, the human species is subdivided into smaller groups called a. ethnic groups b. species c. breeding populations d. races e. all of the above

A frameshift mutation could result fromA) a base insertion only. B) a base deletion only. C) a base substitution only. D) deletion of three consecutive bases. E) either an insertion or a deletion of a base.

The first step a biologist takes when deciding how to study life is to