The two keys cation involved in the action potential of nervous transmissions are
Na+ an Fe2+
Mg2+ and K+
Na+ and K+
Fe2+ and Mg2+
Correct answer is C
No explanation has been provided for this answer.
| Ecological Zone | Temperature (oC) | Rainfall (mm) |
| I | 45 | 300 |
| II | 32 | 2000 |
| III | 30 | 2200 |
| IV | 15 | 800 |
From the table above which of the zones is likely to be desert?
I
II
III
IV
Correct answer is A
No explanation has been provided for this answer.
|
Ecological Zone |
Temperature (ºC) |
Rainfall (mm) |
|
I |
45 | 300 |
| II | 32 | 2000 |
| III | 30 | 2200 |
| IV | 15 | 800 |
From the table above high relative humidity will be expected in zones
I and III
I and IV
II and III
II and IV
Correct answer is C
No explanation has been provided for this answer.
Mammals are capable of producing hypertonic urine mainly because of re-absorption in the
Bowman's capsule
Urethra
Ureter
Loop of henle
Correct answer is D
No explanation has been provided for this answer.
The mode of nutrition of sun dew and bladder wort can be described as
saprophytic
holozoic
chemosynthetic
autotrophic
Correct answer is B
No explanation has been provided for this answer.