Show the process of construction of keys, Biology

Assignment Help:

Q. Show the process of Construction of Keys?

Keys are constructed using contrasting characters. The possible names in the key are divided into smaller and smaller groups. Each time a choice is made, one or more taxa are eliminated. Statements in the key are based on the characters of the plants. Such as herbaceous versus woody: If herbaceous eliminate woody plants ii) zygomorphic flowers versus actinomorphic. If zygomorphic eliminate actinomorphic flowers.

Each time a choice is made, the number of taxa is reduced by the use of contrasting characters. dare constructed in a different. manner while based on the same matter. A good key is strictly dichotomous, not having more than two alternatives at any point.


Related Discussions:- Show the process of construction of keys

Explain about the simple proteins, Explain about the Simple Proteins? S...

Explain about the Simple Proteins? Simple proteins are those that are made of amino acid units just joined by peptide bond. Upon hydrolysis they yield a mixture of amino acids

Agro industrial-cobalt, Cobalt Cobalt functions as a component of vitamin ...

Cobalt Cobalt functions as a component of vitamin B12  (cobalamin). Ruminants are not dependent on a dietary source of vitamin B12  because ruminal microorganisms can synthesize B

Homo sapiens fossilis (cro-magnon man), Hom o sapiens fossilis (CRO-M...

Hom o sapiens fossilis (CRO-MAGNO N MAN) - Fossils found from Cro-Magnon, France by Mac Gregor (1868) Replaced Neanderthal man about 35.000 years ago Sharp nose

Criticism of lamarckism, point out the criticism of lamarckism in any six s...

point out the criticism of lamarckism in any six short points.

State normal physiological saline, A complete motor neuron is deleted from ...

A complete motor neuron is deleted from a frog and placed in a large volume of normal physiological saline.  The neuron is healthy; it has a stable resting voltage of -70 mill

Setting priorities for action - functions of consciousness, Setting priori...

Setting priorities for action: It is not enough for our actions to be coordinated with events in the outside world; they must reflect our internal needs. Pain can flood conscious

Explain the lactose fermenters and non lactose fermenters, Explain the Lact...

Explain the Lactose Fermenters and Non lactose Fermenters 1) Lactose Fermenters - These produce acid on lactose fermentation, which results in red colouration on bacterial colo

Do plants present only sexual reproduction, Q. Do plants present only sexua...

Q. Do plants present only sexual reproduction? There are asexual forms of reproduction in plants few naturally detached pieces of root, leaves or limbs develop into another com

Objectives of eyelids-lacrimal apparatus-tear film dynamics, Define the obj...

Define the objectives of eyelids, lacrimal apparatus and tear film dynamics. By familiar with section, you should be capable to understand: a. All the functions of the eyeli

Can you explain irradiation, Q. Can you explain Irradiation? Irradiati...

Q. Can you explain Irradiation? Irradiation: It is the process of exposing food to carefully controlled amount of ionising energy to destroy and control microorga

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd