Biology Knowledge About General Science

Biology Knowledge About General Science

Biology Knowledge About General Science,jkssb posts,jkssb knowledge, jkssb materials,


Some objectives in Pdf 


Hello Aspirants,Here we have given some important facts of Biology. We hope it will help you to know about biology and to score more marks in General science.
Length of Alimentary Canal Approximately- 8 metres.
BMR (Basal Metabolic Rate) – 1600 K. Cal / day.
Number of Cells in Body 75 trillion
Longest Bone Femur (Thigh bone).
Weight of Brain : 1400 gms
Blood Volume 6.8 litres (in 70 kg body)
Normal B.P 120 / 80 mm Hg
Number of R.B.C (a) In Male : 4.5 – 5.0 million cubic mm.(b) In Female : 4.0 – 4.5 million /cubic mm
Life Span of R.B.C : 120 days
Normal W.B.C Count 5000 – 1000 / cubic mm
Life Span of W.B.C : 3 – 4 days
L.C. (Differential Leucocyte Count)
(a) Basophils : 0.5 – 1%
(b) Eosinophils : 1 – 3%
(c) Monocytes : 3 – 8%
(d)Neutrophils : 40 – 70%
(e) Lymphocytes : 2 – 25%
Blood Platelets Count : 2,00,000 – 4,00,000 / cubic mm
Haemoglobin (a) In Male : 14 – 15.6 gm / 100 c.c. of 
blood(b)In Female : 11 – 14 gm / 100 c.c. of blood
Hb Content in Body 500 – 700 gm
Universal Blood Donor: O Rh -ve
Universal Blood Recipient : AB
Blood Clotting Time: 2 – 5 minutes
Average Body Weight: 70 kg
Normal Body Temperature : 98.4° F or 37° C
Breathing Rate : 16 – 20 / minute
Dental Formula Adult : 2123 / 2123 = 32;
Child : 22 Milk Teeth
Largest Endocrine Gland : Thyroid
Gestation Period 9 months (253 – 266 days)
Normal Heart Beat” 72 – 75 / minute
Largest Gland : Liver



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