Which of the following is a valid explanation as to why children are at a higher risk to health effects relating to environmental hazards?
a.
Children’s smaller lungs make them more likely to fill up with harmful chemicals.
b.
Children’s immune systems are not fully developed causing them to be at a higher risk.
c.
Children have less outdoor exposure, making them less adapted to outside conditions.
d.
Children take more shallow breaths than adults, causing them to inhale contaminants more frequently.

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.