Explain the difference on the basis of properties ( Any Three ) (9)
(1) Thermosetting plastics and thermoplastics.
(2) Physical properties of metals and non metal physical properties.
(3) Useful micro organisms and harmful micro organisms.
(4) Sexual reproduction and asexual reproduction.
Answers
Answer:
1)The primary difference between the two is that Thermoset is a material that strengthens when heated, but cannot be remolded or heated after the initial forming, while thermoplastics can be reheated, remolded, and cooled as necessary without causing any chemical change
3)Types of Microorganisms are bacteria, archaea, fungi, protozoa, algae, and viruses. Harmful Microorganisms examples: Escherichia coli O157:H7, Mycobacterium tuberculosis, Streptococcus mutans, Salmonella enteric and Chlamydophila pneumonia. Useful Microorganisms include: Saccharomyces cerevisiae, Aspergillus oryzae, L.
4)Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. ... During sexual reproduction, two haploid gametes join in the process of fertilization to produce a diploid zygote.
Answer:
at least 700
in m.y bio there is a I.d