Answer: As each cell differentiates, the <em>DNA </em>changes so that each type of cell has different <em>DNA</em> once it reaches maturity. Mutations in the cells’ nuclei lead to new combinations of <em>DNA</em>, resulting in different shapes and functions in the different types of cells.
Hope this helps!
Answer:
See explanation below.
Explanation:
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.
Abiotic are non-living factors such as sunlight, climate, temperature and soil. They have a direct influence over living things.
Biotic factor are living or once living factors. They depend on abiotic factors.
An ecosystem includes all biotic and abiotic factors in one environment.
A. The abiotic factor is impacting the Bionic factor, less water, less life can sustain.
B. Both biotic and abiotic work together in, or share an ecosystem to flourish.
