Pls help...Henry is studying a family of tree frogs that have poisonous skin, and he finds one frog with a mutation for the pois
on feature. Which of these statements about the tree frog with the mutation is true? a
There will be no change to the frog’s poison.
There will be no change to the frog’s poison.
b
The frog must be more poisonous than other frogs.
The frog must be more poisonous than other frogs.
c
The frog must be less poisonous than other frogs.
The frog must be less poisonous than other frogs.
d
There must have been a change in the frog’s genes.
There must have been a change in the frog’s genes.
Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface. Permeable walls - allow gases to pass through. Extensive blood supply - ensuring oxygen rich blood is taken away from the lungs and carbon dioxide rich blood is taken to the lungs.
technology has made it easier for people to get the nutrients they need through food. Better agriculture means that people don't have to hunt for food or out themselves in danger in order to get food. Clean water has lowered the risks of catching diseases that were in the water.
