Which of the following does not rely on active transport to cross the cell membrane? A. calcium ions B. water molecules C. potassium ions D. sodium ions

Divergent boundaries are characterized by explosive lava flow. true or false

When asked to remember life events, vivid memories from which age range are most likely to be reported?

Farmlands located near coastal regions are being threatened by encroaching seawater seeping into the soil. In terms of water movement into or out of plant cells, explain why seawater could decrease crop production.

1. What changes occur, in reference to the circulatory system, when you exercise?

In eukaryotic cells, transcription cannot begin until a. the two DNA strands have completely separated and exposed the promoter. b. several transcription factors have bound to the promoter. c. the 5 ′ caps are removed from the mRNA. d.

1. Which of the following forms all matter?

True or false Sedimentary rock can be formed from changes in igneous rock, but igneous rock cannot be formed from changes in sedimentary rock.

When a protein is denatured, why does it lose its functionality?

This is a rotating machine that converts the kinetic energy of the wind into mechanical energy. If the mechanical energy is used directly by machinery, such as a grinding stone, the machine is usually called a windmill.

In what way are slime molds similar to kelp?