AND GENE FREQUENCIE
abidaNEW CONCEPT OF EVOLUTION Natural selection operates in two ways: 1 First way: Natural selection at individual level: One way looks at characteristics of individual animals. For example, a bird…
OBJECTIVES OF EVALUATION A HISTORICAL RESPECTIVE
Multiple Choice Questions MCQs Four options are given at the end of each statement. You should encircle one option from them. Comparative anatomy was studied by: (a) Empedocles (b) Darwin …
SUBJECTIVE QUESTION OF EVALUATION A HISTORICAL RESPECTIVE
Discuss theory of acquired character of Lamarck How Geology and fossil evidence do convinced Darwin about evolution. Discuss observation of Darwin in Galapagos Islands. Describe theory of natural selection. Write…
GEOLOGICAL TIME CHART
Era,'Period Age Millions Major Biological events .c.) o N 2 SD 0 Quaternary 0.01 Subtropical forests gave way to cooler forests and grass areas. Tertiary . 65 Modern orders of…
EVIDENCE OF EVOLUTION
BIOGEOGRAPHY The study at the geographic distribution of plants and animals is called biogeography. Biogeographers explain the reason of distribution of organisms in different regions. Biogeographic studies show that life…
Phylum Porifera – Characteristics , Types , Functions & Reproduction
saadiaPHYLUM PORIFERA The Porifera are sponges. They are primarily marine animals. There are nine thousand species of sponges. There are following characteristics of the phylum Porifera: Their bodies consist of…
Brassicacae / cruciperae (Mustard family) Diagnostic characters
sidraCRUCIFERAE (Mustard family) Diagnostic characters Habit: Annual, biennial or perennial herbs Roots: Tap root (fibrous or tuberous) Stem: I lerbaceous. cs indrical. Leaves: Petiolate. alternate, simple, exstipulate, reticulate venation, leaves…
Germplasm Conservation
rubabThe sum total of all the genes present in a crop and its related species constitutes its germplasm. It is ordinarily represented by a collection of various strains and species.…
Objective for Ecophysiology
sanaMultiple Choice Questions (MCQs) Which of the followings form visible spectrum? (a) 400-750 (b) 300-600 (c) 200- 700 (d) 400- 500 The ultraviolet radiations have wavelengths less than: (a) 300 …