Which of the following scenarios involves the introduction of a potentially invasive species? I. The migration of spiders in fruit shipped to the United States from South America
II. The escape of a rattlesnake from a zoo exhibit
III. Picking flowers while on vacation in California and planting them in your garden in Texas
Answers: I and II only. I and III only. II and III only. I, II, and III

answer 1 and 3 only

Explanation:

Spiders not from the US can potentially take over other species habitats. Same with flowers not from a specific area.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.