<span>Pesticides sprayed on
plants were eaten by small animals, which were later consumed by birds of prey.
The DDT poison harmed both the adult birds and the eggs that they laid. The egg
shells became too thin to with stand the incubation period, and were often
crushed. Eggs that were not crushed during incubation often did not hatch, due
to high levels of DDT and its derivatives.<span> </span></span>
Answer:
An organ is more complex than a tissue
Explanation:
A group of tissues form an organ just like a group of similar cells form a tissue
Answer:
Egg.
Explanation:
Technically speaking, dinosaurs were some of the first living creatures on Earth, and they laid eggs long before chickens were around.
<span>Plato first proposed that the planets followed perfect circular orbits around the Earth. Later, Heraclides (330 B.C.) developed the first Solar System model, placing the planets in order from the Earth it was is now called the geocentric solar system model.
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