Out of the written pairs, males have XY while females have XX
An embryo is a early stage of development of a multicellular organism
Neuron : the nerve cells that transfer information within the body.
Neurons can be placed into three groups, based on their location and function.<span>Sensory neurons, interneurons, motor neurons.
</span>sensory neuron :<span>Transmit information from a sense receptor to the brain or spinal cord
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interneuron:<span>Integrate information within brain or spinal cord; connect sensory and motor neurons; located entirely within the CNS
</span>motor neuron:<span>Transmit information from the brain or spinal cord to a muscle or gland; Cause muscle contraction or gland secretion</span>
Explanation:
HIV attacks a specific type of immune system cell in the body. It's known as the CD4 helper cell or T cell. When HIV destroys this cell, it becomes harder for the body to fight off other infections. When HIV is left untreated, even a minor infection such as a cold can be much more severe.
The answer is To your question is D