Question

Do echinoderms see other organisms? If not, how do they find their food and avoid predators?

a) Echinoderms have limited vision and can see other organisms.
b) Echinoderms rely on chemical cues and tactile senses to find food and avoid predators.
c) Echinoderms are blind and do not actively seek out food or avoid predators.
d) Echinoderms use echolocation to locate food and detect predators.

Answer 1

Echinoderms do not have well-developed vision but rely on chemical cues and tactile senses to find food and avoid predators.Hence, the correct answer is option B.

Step-by-step explanation:

Echinoderms, such as sea stars and sea urchins, do not have well-developed vision and cannot see other organisms in the same way that humans do. Instead, they rely on chemical cues and tactile senses to find their food and avoid predators.

Echinoderms use their tube feet and sensory cells on their body surface to detect chemicals in the water, allowing them to locate food. Some echinoderms also have simple eyes (ocelli) that can sense light, but their vision is limited.