Suppose when you clap your hands you hear the echo a few seconds later. What can you say about the size of this room?

Large ecosystems with their own climate, soil, plants, animals-fou in different parts Of the world are called what?

Sodium chloride, or Na+Cl-, is an example of a molecule whose atoms are held together by which of the following? A. Hydrogen bonds B. Covalent bonds C. Metallic bonds D. Ionic bonds

I'm order to increase thermal energy the temperature must A. Increase B. Decrease C. Remain the same D. It cannot be determined

You are a scientist trying to recreate DNA replication in a test tube. emplate DNA molecLON nucleotides, enzymes, etc.) have been added to the test tube.

Definition of biodiversity

What's a primary consumer

After plants absorb energy from the sun the energy gets converted into blank energy for the plant to carry out life activities

A type of succession in which an ecosystem damaged by fire is reestablished

Major functions of digestive system

The fact that two strands composing a dna molecule are called antiparaellel has to do with the orientation of the