Question

24:Some type of tissue essentially stays in G0 phase of the cell cycle once they reach maturity. Which of the following types of tissue do not undergo mitosis and do not divide?
A:Glial cells.
B:Neurons.
C:All of these types of tissue undergo the full cell cycle.
D:Cardiac muscle.

25:If an organism is regulating its water balance, then which of the following is most likely true?
A:It is regulating its fluid balance.
B:Fluid balance will not change when water balance changes.
C:It relies solely on positive feedback loops to manage its water balance.
D:It would not be able to survive in a dry habitat.
26:Which plant tissue performs photosynthesis as one of its functions?
A:Vascular tissue.
B:Dermal tissue.
C:Ground tissue.
D:Connective tissue.
27:While sweating is mostly water, it also contains a variety of salts, known as electrolytes. If you have been working hard outside on a hot day, and have been sweating profusely, but you only drink water, without replenishing any of these electrolytes. What will happen to your fluid balance?
A:It will not be affected.
B:It will go up.  
C:It will go down.
D:It is impossible to determine.

Answer 1

Ans24)neuron

Cardiac muscle

explaination:neuron and cardiac muscle cell remain in Go phase throughout life after birth and not enters into mitosis. While glial cell undergo mitosis.

Ans25)A:It is regulating its fluid balance.

Explaination: water is major component of body fluids ie, it constitute about 80% of total body fluids.so when a person is regulating its water balance which means he is maintaining its body fluids.

Ans26)ground tissue

Explaination:In leaves ground tissue consist of mesophyll and its main function is to form organic food through photosynthesis and storage of food.

Ans27)c)it will go down

Explaination: due to excess sweating electrolyte such as sodium ion and potassium ion concentration will decreases.