They are a good choice because at any given time, you can find cells that are undergoing mitosis.
<span>47 chromosomes is the correct answer. Humans have 23 pairs of chromosomes, making 46 chromosomes in total. Down's syndrome is the addition of an extra chromosome on chromosome 21, leading to an uneven number.</span>
Producers are organisms that can produce their own energy without consuming other organisms. For example, plants. Consumers are organisms that get their energy from consuming other consumers, and other animals. For example, lions get their energy from eating other animals.
Neuron
Some nerve cells contain axons up to 1 meter long. The neuron which connects the central nervous system (brain and spinal cord) to other parts of the body is the longest cell in the human body.