STD 11 - 17. Locomotion and movement — NEET STD 11 Science — Question

It is not a function of bone.

Fossils are useful in

Which plant is used as a model system in the study of plant genetic

A study of fossils in different sedimentary layersindicates

The animal group, where the adults are degenerated but larvae are well developed, is

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 supportive skeletal structures in the human external ears and in the nose tip are examples of

Which type of neurons are found in the retina

A common cloacal aperture is found in