soystersoce
29.10.2020 •
Biology
A frog's skin is permeable to oxygen and carbon dioxide.
When a frog is swimming in pond water, in which directions will oxygen and carbon dioxide
diffuse?
from the frog's skin
into the water
from the water into
the frog's skin
A
oxygen
carbon dioxide
carbon dioxide and oxygen
B
с
oxygen
carbon dioxide
D
carbon dioxide and oxygen
Solved
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Ответ:
A
Explanation: The answer to the question should be:
oxygencarbon dioxidecarbon dioxide and oxygenОтвет:
The correct answers are option A and B
Explanation:
The first colorimeter is reliable because the the reading it is showing is same for all the times the experiment is done. Though the result obtained is wrong but it is reliable.
The second colorimeter is valid and reliable because it is showing the correct results again and again. This is valid result as it is giving the result same as that of actual readings.