Starfish, also known as sea stars, are marine organisms that belong to the Class Asteroidea. They are considered invertebrates because they lack a vertebral column. Moreover, most starfish species have five arms but some species can have up to 15!

Here are some characteristics that differentiate starfish from other organisms and make them so unique:

Possession of tube feet.
Most species have pedicellaria, claw-shaped structures with movable jaws.
Radial symmetry
They can possess from 5 to 15 arms.
Do not possess brain.
They can regenerate parts of their body.

6 0

2 years ago

What did Paul Ehrlich bring to focus? Paul Ehrlich brought to focus the argument that is responsible for the world’s environment

quester [9]

Answer:

Paul Ehrlich brought to focus the problem of environmental Pollution and the Climate change, the argument that is responsible for the world’s environmental problems.

Explanation:

Paul Ehrlich stated that we are unprepared to face the effects of the environmental problems. The environmental problem has arisen due to the over consumption of the resources according to Ehrlich.

According to him we have already released enough amount of poisonous substances in the environment which affects our human tissue in a bad way. Ehrlich states that fate of humanity is going to collapse if the activities of exploitation of environment is left unchecked.

7 0

3 years ago

Read 2 more answers