About how much does the brain weigh

What is a characteristic of an agnostic interaction

After millions of years, sedimentary rock containing phosphorus is uplifted from plate tectonic activity. Follow the phosphorus molecules found in the rock through the whole phosphorus cycle, by numbering the steps that would follow. 1.

Which order of events correctly portrays succession? 1. Moss - > Grass - > Shrub - > Tree 2. Tree - > shrub - > Grass - > Moss 3. Moss - > Shrub-> Grass - > Trees 4. Moss - > Grass - > Shrub - > Tree

Claudio is out on a whale watching boat trip. He sees a dolphin near the boat because light waves pass through the structures of his eye. Which step of processing in the visual system does this describe? a. step 1: physical stimulus b.

What contains instructions to cells about how to form a heart?

Distinguish between cell differentiation and cell specialisation

What amount of earths total water supply is usable fresh water? A. 25% B. Less than 1% C. 50% D. 75%

What Kingdom do euglena belong to? What Phylum?

Which of these would NOT be an effective way to represent data collected in a scientific experiment? A) data table showing months of the year and average temperatures B) line graph with time on the x-axis and plant growth on the y-axis C) bar graph

Why do humans have two sets of 23 chromosomes