What are the substances that skeletons are composed of ?

2 answers:

5 0

Rigid skeletons are formed from materials including chitin (in arthropods), calcium compounds such as calcium carbonate (in stony corals and mollusks) and silicate (for diatoms and radiolarians).

agasfer [191]3 years ago

5 0

Answer:

Rigid skeletons are formed from mostly of collagen, bone is living, growing tissue. Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework. This combination of collagen and calcium makes bone strong and flexible enough to withstand stress.

Explanation:

You might be interested in

Through which structure would the toxins first enter the plant?

weeeeeb [17]

The toxins would enter through the Xylem.

6 0

3 years ago

Read 2 more answers

The atomic number of an element is the same as the number of _________ in each atom.

muminat

Neutrons plus protons

4 0

3 years ago

Help with the picture

Ipatiy [6.2K]

Bleaching I believe is the correct answer.

7 0

3 years ago

Is it true or false of the finding of evidence of liquid water on Mars is important because water is essential for life?

ki77a [65]

Water is essential to life because it creates us humans, plants, animals, etc. So, if we find water on Mars it would be important because water is essential to life, meaning we would know that there would be some kind of life on Mars because water makes up anything.

7 0

3 years ago

Help i would rlly appreciate it i have been doing my work for the longest

Dovator [93]

ANSWER:

I think it's the second one.

EXPLANATION:

in primary succession newly exposed or newly formed rock is colonized by living things for the first time. in secondary succession an area that was previously occupied by living things is disturbed, then recolonizeed following the disturbance.

3 0

4 years ago