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grin007 [14]
2 years ago
6

Useful materials

Biology
1 answer:
stiv31 [10]2 years ago
3 0

Answer:

Explanation:

The materials that are useful are bamboo, plastic, steel, concrete, fabric , textiles, stones, brick, repurposed wood e.t.c.

Materials become useful, when those that uses it use it right and to achieve a specific purposes base on the properties the materials poseses.

The materials that are harmful include asbestos, Mercury containing devices, lead based paints, household hazardous waste, light system, mold, refrigerant containing system.

Materials become harmful when they contain substances or properties that is dangerous or can harm human beings and cause damage to cells.

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aleksandrvk [35]

Answer:

c......... they share the most traits

8 0
3 years ago
DNA wrapped around histone proteins forms a material called ____ which condenses tightly to form _____ that can be seen with a l
makkiz [27]

Answer:

The correct answer will be-

1. Nucleosomes

2. Chromatin

3. Sister chroamtid

4. Centromere

Explanation:

The DNA is a very long molecule which if has to be passed on to the daughter cell as it is will cause problems. So, to reduce problems a cell form tightly packed structure of DNA so that they can be passed easily to the daughter cell.

The packaging of DNA begins with the wrapping of the DNA around histone proteins which forms the 11 nm basic structural units called nucleosomes. The nucleosomes start condensing each other and form 30 nm structure chromatin fibres.

The chromatin fibres undergo replication during S phase which produces an exact copy of the chromatin called sister chromatids bound to each other at a central point called centromere which helps the separation of the chromatids during M phase.

5 0
3 years ago
Glucose is a building block of starch. Which of the following best describes glucose?
Genrish500 [490]

Answer:

carbohydrate

Explanation:

glucose is a kind of carbohydrate.

8 0
3 years ago
Dead animal matter lead to the formation of coal. question 1 options: <br> a. True <br> b. False
kicyunya [14]
I would say false because fossil fuels are formed by dead animal matter
6 0
3 years ago
What is the common element found in the human body
juin [17]
Hydrogen and Oxygen. Better known as H2O
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