A small fish eats plant material. Later that day, a heron dives into the water and eats the small fish.

Which type of organism does the small fish represent in this scenario?

parasite

predator

prey

producer

The name of hermone that calcium concentration in blood, called?

Rats have the same essential amino acids as humans. what is the consequence if tryptophan is missing in the diet of laboratory rats

6. Why is the nucleus of the cell important?

Under physiological conditions, a polypeptide folds up into secondary structure. what are the most common secondary structure elements?

Which of the following would disappear first if an estuary were destroyed? A) shellfish B) whales C) coral reefs D) algae

In a population of short, ground-dwelling animals, some offspring were produced that were approximately 1 cm taller than others in the population. This group was able to reach slightly higher vegetation than the rest of the population.

What are Surface ocean currents generated mostly by?

Can finding headspace reduce work stress? a randomised controlled workplace trial of a mindfulness meditation app

Is it bad to drink decaf coffee when you have a cold?

Name two animal that excretes uric acid