During which era did plants first appear on land?

Cenozoic

Mesozoic

Paleozoic

Precambrian

jonathan is hybrid for blue eyes. His wife Carly, has blue eyes. If they have four children, how many will have blue eyes?

What was proposed by Wegener?

In an experiment, there are two groups. Which group is not changed in any way? variable control hypothesis experimental

Bacteria are the most common example of exponential growth. Select a number between 2 and 10 to represent the hourly growth rate of a certain bacteria.

In a controlled experiment, what term is used to describe the many factors that might be different between the experimental and control groups? A. Accuracy B. Variable C. Instruments D sources of error

As the polypeptide is elongating during translation, what is the ribosome doing?

A gazelle population nearly doubles in four months (March - June). Which statement below best explains this change in gazelle population? : The numbers of predators have increased. Food resources have diminished.

Canned food is prone to what if cooked at a low heat? 1. Food containing more nutrients 2. Better tasting food 3. Botulism 4. can be canned in thinner cans

How can changing ocean currents lead to climatic cooling?

What color of light is the best for photosynthesis