How will distinguish between natural and artificial fibres by observing the smell produced when burnt?

Biology

1 answer:

slava [35]2 years ago

8 0

Answer:

Natural fiber smell like paper whereas artificial fiber smells like an acid.

Explanation:

We can distinguish between natural and artificial fibers by observing the smell produced when burnt because both produces different types of smell when burnt. When the artificial fibers are burn, it produces acid or chemical like odor and leaving a plastic like bead while on the other hand, when the natural fiber burn, it produces smell of burning paper or hair and leaving ash of soft and grey colour. Natural organic fibers burn rapidly with a yellow flame.

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Ferns often have small bumps called sori arranged in rows on their undersides. What are these structures?A) Spore capsules.

leva [86]

Answer:

A) Spore capsules

Explanation:

Ferns produce spore capsules contained in the sporangium (plural: sporangia), a structure localized on the undersides of the leaves. Moreover, the sporangia are borne in clusters known as sori (singular sorus). The spores are single reproductive cells that, when mature, are released from the sporangium to germinate on soil and produce new ferns. In a fern sporangium, the maximum number of spores is 64, although this number depends on the species.

6 0

3 years ago

What is the basic unit of classification of living beings

SpyIntel [72]

Answer:

The basic unit of classification of living beings, from the taxonomic point of view, is species.

Explanation:

Taxonomy is a discipline that deals with the classification of living beings, its basic unit of classification being the species category.

<u>A species includes all the individuals with morphological and functional similarities</u>, which also have the capacity to make crosses among them and have a descendant with the same characteristics, including fertility.