Answer:
A Mutation is when a DNA gene is damaged or changed in a way that changes the genetic message carried by that gene.
Explanation:Mutations are sometimes good and sometimes bad it can also cause genetic variation which increases the survival of a species
The diseases are in a small space rather then spread out
The options for the question are:
A tiger cub is born.
A tiger cub learns to walk.
A tiger cub begins to grow.
A tiger cub play-fights.
Answer:
<em>The correct option is when a tiger cub begins to grow.</em>
Explanation:
Mitosis can be described as a process by which two new daughter cells are formed which are exactly like one another and like the parent cell. The process of mitosis allows the different cells of the body to be replaced with new ones as the old ones get starts to die. Mitosis is the phenomenon through which growth occurs as it causes the cells to divide and multiply. Hence, the phenomenon of mitosis is very important during the growth of an organism.
I believe non-polar but I may be wrong
Answer:
A sensory neuron.
Explanation:
The nervous system can be divided in two systems: the central nervous system and the peripheral nervous system. The central nervous system (CNS) is composed by the brain and the spinal cord. The peripheral nervous system (PNS) consists of the nerves and ganglia. Neurons are specialized cells that form the basic functional unit of the nervous system. There are three types of neurons: sensory, motor and interneurons. The sensory neurons are in charge of bringing signals into the CNS, and the motor neurons are in charge of carrying signals out of the CNS. The interneurons act as intermediaries, passing information between two neurons.
As the name implies, sensory neurons are activated by the senses, for example: sound, visible light, physical contact (heat and cold), chemical signals (smell and taste). The loss of sensation in one hand would be the result of a damaged sensory neuron.