This is the energy needed by a system to initiate a process.

How is sunlight the primary source in a humans life

What will most likely happen when an air mass of low temperature exists above a water body at a higher temperature? Humidity of the air mass will decrease. Heat will flow from the air mass to the water body.

Put the following levels in order from simplest (1) to most complex (6). ecosystem population biome organism community biosphere

Adult stem cells cannot repair and replace cells in a animal true or false?

Gametes contain _ the number of chromosomes found in normal body cell

Consider the shape and structure of the virus in the diagram. A helical virus is shown.

Do robber crabs have more in common with dolphins or with sponges?

What problems would you expect to observe in an ecosystem without secondary consumers

According to the video, what is a significant difference between Accountants and Auditors and other professionals?

Photosynthesis cannot happen without