STD 11 - 4. Animal kingdom — NEET STD 11 Science — Question

First mammals appeared in the period

Which one is not a symptom of Entamoeba histolytica infection

Abiogenesis means

Corpus luteum is developed from

Cancer of the internal organs is detected by

The chemicals which are “pro-life” with reference to human beings

Read the following and choose the option with all incorrect statements,
(i) Inspiratory Reserve Volume averages 2500- 3000 ml whereas RV averages 1000-1100 ml.
(ii) Volume of air remaining in lungs after normal expiration is called residual volume. It averages 1100 to 1200ml.
(iii) I.C = T.V + LR.V
(iv) Functional Residual capacity is total volume of air that will remain in lungs after normal expiration.This includes R.V.E.R.V and IRV
(v) Vital capacity is the maximum volume of air a person can breath out after a forced inspiration. This includes ERV, T.V and IRV
(vi) Alveoli are the primary sites of exchage of gases.
(vii) Expiratory capacity is total volume of air a person can expire after normal inspiration.
(viii) Pressure contributed by an individual gas in a mixture of gases is called partial pressure and is represented as pO₂ for oxygen and pCO₂ for CO₂
(ix) pO₂ of deoxygenated blood is 40 mmHg and PCO₂ in oxygenated blood is 45 mmHg.
(x) The solubility of CO₂ is 20-25 times higher than that of O₂ in blood.
Choose the correct option given below :-

The gliding joints are important for gliding movements. One example of such a joint is between the

Which of the following has most well-developed respiratory system?