an insect
a mammal
an amphibian
a fish
Correct answer is B
No explanation has been provided for this answer.
Which of the following substances is not an excretory product in mammals?
Carbon dioxide
Water
Faeces
Urea
Correct answer is C
No explanation has been provided for this answer.
Which of these organs can be considered vestigial in humans but functional in other mammals? The
liver
appendix
rectum
stomach
Correct answer is B
No explanation has been provided for this answer.
A serious disadvantage of complexity in higher organisms is
a high demand for food and energy
ability to function in many specialized roles
little amount of energy dissipated in functioning
specialization of parts of the body
Correct answer is A
No explanation has been provided for this answer.
One important characteristic of green plants is that they
possess specialized sense organs
are usually motile
are autotrophic
respond slowly to stimuli
Correct answer is C
No explanation has been provided for this answer.