This was so because the microscopes were not of high resolutions back then.
Answer:
plants and meat or both
Explanation:
carnivores eat meat or sum.both herbivores (herb)eat only plants
A. Natural Selection. This is because the weeds that are not resistant to it die out before they can reproduce, but the resistant ones grow to maturity and then reproduce, passing down the resistance gene. Over time, the resistance gene would become a normal thing in weeds, while the non-resistant gene would not exist anyone, since the gene could not be passed on.
The choices can be found elsewhere and as follows:
<span>A)
secretions that produce a hard protective skeleton.
B)
the inability to leave the reef and swim after prey.
C)
stinging cells that kill prey and discourage predators.
D)
symbiotic relationships with algae that photosynthesize and feed them.
I believe the correct answer is option B. O</span>ne polyp feature that is detrimental rather than beneficial is the inability to leave the reef and swim after prey. Reefs<span> begin when a </span>polyp<span> attaches itself to a rock on the sea floor, then divides, or buds, into thousands of clones. Hope this helps.</span>