Finding clam shells in a rock indicates that the region was once a shallow marine environment

true or false

How long can food be left out at room temperature is it 1,4,2 or 8 hours?

The diagram represents a model of how bacteria become resistant to an antibiotic, allowing bacteria to survive treatment. Which BEST explains how the indicated step in the model allows bacteria to develop resistance.

Which of the following events occurred about 1.2 billion years ago and resulted in an increased rate of evolution for Earth's life forms?

Fungi are called thallophyta? why?

The leaves of a sensitive plant close whenever any part of the plant is touched because of a? A. gravitropism B. phototropism C. thigmotropism D. photoperiodism

The moon travels around Earth at a speed of about 1 km/s. Which of the following keeps the moon in orbit around Earth?

A rock at the earth's surface is primarily affected by forces of?

Who used a compound microscope to see chambers within a cork and name them cells

What is the force of resistance acting between objects in contact and tending to dampen their motion? options: 1. gravity 2. sliding force 3. friction 4. electromagnetic force

Which of the following describes a relationship of commensalism? A. A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat. B. Oxpecker Birds eat parasitic tricks off the backs of zebras C.