Answer:Coral reefs are some of the most diverse ecosystems in the world. Coral polyps, the animals primarily responsible for building reefs, can take many forms: large reef building colonies, graceful flowing fans, and even small, solitary organisms. Thousands of species of corals have been discovered; some live in warm, shallow, tropical seas and others in the cold, dark depths of the ocean.
Because of the diversity of life found in the habitats created by corals, reefs are often called the "rainforests of the sea." About 25% of the ocean's fish depend on healthy coral reefs. Fishes and other organisms shelter, find food, reproduce, and rear their young in the many nooks and crannies formed by corals. The Northwest Hawaiian Island coral reefs, which are part of the Papahānaumokuākea National Marine Monument, provide an example of the diversity of life associated with shallow-water reef ecosystems.
Explanation:
Answer:
points without getting this taken down.
Starch + saliva treated with vinegar (acid)
Was the test positive or negative?
Negative
What does this indicate?
Amylase does not work in acidic mediums.
$14.40
last week you paid $25.20. buy two get one free means you pay for 2/3 of what you get. if you bought 36 this week, then you only would have to pay paid for 12. each of those 12 cost 90 cents so that’d be $10.8. then $25.20 from last week minus what would’ve been $10.8 means you spent $14.40 more than you could’ve.