Genetical experiments suggest that traits acquired during a person's lifetime are not inherited as proposed by Lamarck's theory that traits acquired or changed over an individual's lifetime could be passed on to its offspring. Through experiments, scientists through many observations and real examples that changes that often occur in an animal's life are not passed down to it's offspring.
Answer:
11. The behaviors and physical characteristics of species that allow them to live successfully in their environment are called adaptations.
Explanation:
Adaptations <em>are a process that organisms go through to become better suited for their environment to help them be better suited to survive.</em>
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The nucleolus is inside the nucleus, and is where ribosomes are made.
Explanation:
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They have two pairs of main nerve cords organized around a number of paired ganglia. while they don't have a "true brain"-- they have somewhat of a nervous system, composed of the two, or three pairs of nerve cords contained in the visceral mass.