Q. Which of the following are true regarding ecological pyramids?

(A). The pyramid of energy is always upright 

(B). The pyramid of biomass in a sea is generally inverted 

(C). The pyramid of number in a tree ecosystem is inverted

 (D). Saprophytes are given a specific place in ecological pyramids

Choose the correct answer from the options given below:

#Question id: 11059

#Biochemistry

A healthy, 45-year-old man is reading the newspaper. Which of the following muscles are used for quiet breathing?

#Question id: 11060

#Biochemistry

A healthy, 25-year-old medical student participates in a 10-km charity run for the American Heart Association. Which of the following muscles does the student use (contract) during expiration?

#Question id: 11061

#Biochemistry

The pleural pressure of a normal 56-year-old woman is approximately −5 cm H2O during resting conditions immediately before inspiration (i.e., at functional residual capacity). What is the pleural pressure (in cm H2O) during inspiration?

#Question id: 11062

#Biochemistry

The alveolar pressure of a normal 77-year-old woman is approximately 1 cm H2O during expiration. What is the alveolar pressure during inspiration (in cm H2O)?

#Question id: 11068

#Biochemistry

A patient has a dead space of 150 ml, functional residual capacity of 3 L, tidal volume of 650 ml, expiratory reserve volume of 1.5 L, total lung capacity of 8 L, and respiratory rate of 15 breaths/min. What is the residual volume?

#Question id: 11070

#Biochemistry

A patient has a dead space of 150 ml, functional residual capacity of 3 L, tidal volume of 650 ml, expiratory reserve volume of 1.5 L, a total lung capacity of 8 L, respiratory rate of 15 breaths/min. What is the alveolar ventilation?