5. What kind of heterotrophs are humans? Justify​

These plants, which often lack chlorophyll, are known as saprophytes. Humans, of course, are heterotrophs. This means that humans can only sustain themselves by eating plants, or by eating animals that have themselves grown by eating plants.

Explanation:

Humans do not possess the physiological mechanism to produce their own food from the raw materials in their surroundings like the plants. Hence, humans consume plants and other animals to fulfill their energy needs. As they derive food or energy from other sources they are referred to as heterotrophs.

that scientist would be robert hooke