1. What is meant by the term gaseous exchange? 2. Explain why the respiratory surface has to be:thin and moist
3. Explain how the following are adapted to their function
(a) Guard cells.
(b) Aerenchyma tissue.
4. List the environmental factors influencing t
stomata.
tages and disadvantages of hay​

Which statement about inheritance is true? o girls get most of their traits from their moms, boys get most of their traits from their dads. o male offspring will always have an x-linked genetic disease if the mom is a carrier o fathers always determine the gender of the offspring in humans. o males never have y chromosomes.

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

What are the seven economic and social goals?