Squirrels easily kill some trees because
they inject poisonous substances into the trees
most trees are susceptible to squirrel bites
they feed voraciously on the roots
they gnaw the bark and destroy
Correct answer is D
No explanation has been provided for this answer.
Which of the following structures in a flower develops into the seed?
Testa
lntegument
Ovule
Ovary
Correct answer is C
No explanation has been provided for this answer.
The frog is considered a better swimmer than the toad because it
has more pronounced webbed digits
has much longer and stronger hind limbs
lives in water most of the time
is more streamlined than the toad
Correct answer is A
No explanation has been provided for this answer.
The producers in a food chain in an aquatic environment are
birds
phytoplankton
zooplankton
fishes
Correct answer is B
No explanation has been provided for this answer.
The maximum size of a population that a given area can support is known as
population density
carrying capacity
population growth
maximum population
Correct answer is B
No explanation has been provided for this answer.