Answer:
a) when cells are small the movement of food and waste can be efficiently handled by the cell membrane
Explanation:
Cells need to get their nutrients and waste in and out of their cell membrane every quickly. Cells are hard workers anyway! The other options also don't make much sense. The cell shape doesn't mean much to their function, and size doesn't impact shape. The cell's internal parts (mitochondria, vacuole, etc) don't support the cell membrane, they have their own functions to focus on. Cells don't work together in tissue but they can interact with each other when needed.
Answer: 12 per cent
Explanation:
The REM sleep is associated with the prolonged erections males and pelvic thrusting in the females.
It is not being pursued for further studies as a concern of the function of REM sleep. The Yu and Fu found that the sleep involves the dreams about sexual activity.
The desires and fantasy of the real life appears to be complete in the dreams and 12 per cent of the total population see these dreams.
The correct answer is:
a. Jupiter
Explanation:
In 1610, Galileo Galilei turned his rudimentary telescope on Jupiter and understood that it had 4 large moons orbiting it: Io, Europa, Ganymede, and Callisto. This was an amazing discovery because it explained that Earth was not the center of the Universe as champions of the geocentric view assumed.
Answer:
The correct answer will be option-D
Explanation:
Pulmonary Surfactant is a complex substance produced by the pneumocytes epithelial II cells in the alveolar sac.
The surfactant is composed of the proteins and lipids which plays a role in keeping alveoli open by reducing the surface tension formed between the air and liquid.
The surfactant act by forming a monolayer surface film which helps reduce the surface tension.
Thus, option-D is the correct answer.
Answer: “why can’t we hear end thing in space?” Or “how do we know how hot the sun is?”
