Select all the correct answers. The image shows a week-old chick embryo. What can you conclude about its current stage of development?

A spinal column is present.
The chick will develop four limbs and a beak.
It’s an invertebrate.
It’s sexually mature.
It’s about to undergo a metamorphosis.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint