Devonian, Biology

Assignment Help:

Devonian is the period of geologic time from 410 - 360 million years before the present. Life on land diversified, with amphibians appearing late in this period of time. Plants went through main changes, including the development of seeds and forests. In the water, fish diversified into all the modern groups as well as numerous of the forms which are now-extinct.


Related Discussions:- Devonian

Arthropods, what are the general characteristics of arthropods?

what are the general characteristics of arthropods?

Cilia and flagella – protozoans, Cilia and Flagella – Protozoans Cilia...

Cilia and Flagella – Protozoans Cilia and flagella basically have a similar structure and distinction between the two on structural basis does not exist. There is a filament o

Define the precursor of co-enzymes - functions of riboflavin, Define the Pr...

Define the Precursor of co-enzymes - Functions of riboflavin? The major function of riboflavin is to serve as the precursor of the coenzymes FMN and FAD and of the covalently

Regression of primitive streak, Regression of Primitive Streak As...

Regression of Primitive Streak As the inward migration of cells by the primitive streak ends progressively along its anterior to posterior regions the streak slowly regre

What are the coverings of the body, Q. Besides the skin what are the other ...

Q. Besides the skin what are the other coverings of the body? Besides the skin there are other covering tissues made of epithelium over other tissue layers. They are the tissue

Action of natural selection in changing environments, Directional or progre...

Directional or progressive selection is the mode of selection associated with environmental change. We said earlier that in an unchanging environment stabilising selection removes

What are gibberellins, What are gibberellins? Where are they produced? ...

What are gibberellins? Where are they produced? Gibberellins are plant hormones that stimulate plant growth, flowering and fruit formation (also parthenocarpy) and the germina

Explain early diastolic sound in diastolic, Explain Early Diastolic Sound i...

Explain Early Diastolic Sound in diastolic ? a) Opening snap (0s) of Rheumatic MS: High frequency sound. Generation of sound: Because of high LA pressure, the superior systolic

Prognosis, The course and ultimate prognosis of ARF is usually directly rel...

The course and ultimate prognosis of ARF is usually directly related to the severity of carditis. The course and prognosis also depends upon recurrence of rheumatic fever. In pre-p

State about glycosylated hemoglobin, Glycosylated Hemoglobin (HbA1c) Hb...

Glycosylated Hemoglobin (HbA1c) HbA1c should be done routinely for diabetic patients. It reflects the average glycemic (sugar) control over the previous few months and should b

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