wind pollinated flowers have brighter, more colorful sweet smelling petals, T/F?
false
in isotopes, atoms have different proton numbers, t/f?
false
the flower part into which a pollen grows its pollen tube is?
style
What did John Dalton do?
came up with the atomic theory
petrol burns in the car is the reaction endothermic/exothermic?
exothermic
Hibernation is a structural adaptation, T/F?
False
the male gamete in a flower is the?
pollen
how did democritus contribute in the history of atoms?
suggested the word' atoms'
once a seed is formed, the petals and anthers and stigma, wither away, t/F?
true
In photosynthesis, carbon dioxide is a reactant, T/F?
True
The famous gold foil experiment was conducted by?
Ernest rutherford
why does a camels have bushy eyelashes
to prevent sand from entering the eyes
to test for carbon dioxide, calcium carbonate is used, T/F?
false
what physical feature in a polar bear prevents excessive loss of body heat?
thick coat, small ears etc