Question

What changes in animal life occurred immediately after Invertebrata?

a) Arms and leg buds appeared
b) bony encasement of central nervous system
c) eyes appeared
d) all of the above

Answer 1

Arms and leg buds, bony encasement of central nervous system, and eyes appeared.

Step-by-step explanation:

The changes in animal life that occurred immediately after Invertebrata include:

1. Arms and leg buds appeared: As animals moved from water to land, limb-like appendages began to develop to facilitate movement on land.
2. Bony encasement of central nervous system: The development of a bony skull or cranium protected the brain and central nervous system.
3. Eyes appeared: The evolution of eyes allowed animals to sense the environment and adapt to new habitats.

Therefore, the correct answer is d) all of the above.