Evolutionary changes in humans, Biology

Assignment Help:

Evolutionary changes that occurred in humans are -

Development of prominent chin. Increase in cranial capacity. Reduction of brow-ridges.
Development of speech. Development of community life. Reduction in the size of teeth.
Reduction of muscles. Gradual development of thumb opposability. Development of shorter fore limbs.
Liberation of hands for locomotory function. Slow assumption of erect posture.

Related Discussions:- Evolutionary changes in humans

Companion cells, Companion cells are the specialized cells in the phloem w...

Companion cells are the specialized cells in the phloem which load sugars into the sieve elements and help to maintain a functional plasma membrane in the sieve elements.

Explain process of rice milling, Rice milling Rice milling involves the...

Rice milling Rice milling involves the following processing steps: rough rice (paddy rice) → hull removal → brown rice → polishing to remove the bran coats (fruits and seed

Active Transport, How does the addition of a watery secretion to the conten...

How does the addition of a watery secretion to the contents of the gut help in the process of digestion?

Explain the storage of vitamin a, Explain the Storage of vitamin A? The...

Explain the Storage of vitamin A? The primary organ for storage of vitamin A is the liver. Reserves are found in the stellate cells, as mentioned above. The average liver weigh

Enumerate the principles of suturing, Enumerate the principles of suturing ...

Enumerate the principles of suturing Principles of Suturing are as follows: - Sutures should always be inserted through the more mobile tissue flap first. - A circular fo

Zoonoses disease-chikungunya, Chikungunya Chikungunya, a metazoonosis,...

Chikungunya Chikungunya, a metazoonosis, is caused by chikungunya virus belonging to genus Alphavirus of the family Togavirideae. The virus is transmitted by infected mosquito

Autonomic nervous system, A.N.S. (Autonimic Nervous System) Name given ...

A.N.S. (Autonimic Nervous System) Name given by Langley . Controled by Hypothelamus. Partially independent system. Controls involuntary actions as heart beat, breathing,

Explain the main function of the digestive system, Explain the main funct...

Explain the main function of the digestive system The major function of the digestive system is to ingest the food materials, digest it to absorbable end products, absorb the

Define tracheal system in details., Define tracheal system in details. ...

Define tracheal system in details. Respiratory system found in insects and some spiders where air passes directly to the tissues through a series of tubules. Since oxygen tran

Explain about g-protein, Explain about G-protein A. When an agonist ...

Explain about G-protein A. When an agonist binds to the binding site of a G-protein-coupled receptor (GPCR), this leads to GTP displacing a GDP bound to the alpha subunit of

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages