The correct answer is microglia.
<span>Microglia is glial cells found in the central nervous system with the protective role. Because they are the resident macrophage cells, they act as the first and main form of active immune defense. Microglia is constantly cleaning the CNS for plaques, damaged or unnecessary neurons, and infectious agents, like viruses or other microorganisms.</span>
Answer:
It represents young or rapidly growing population. In urn-shaped age pyramid, the number of reproductive individuals is higher than the number of pre-reproductive individuals. It represents declining or diminishing population with negative growth.
Answer: A.
Explanation:
Palisade mesophyll cells contain the most amount of chloroplasts with an average of 30–70 chloroplasts per cell so they will be number 2 in the graph.
Spongy mesophyll cells contain less chloroplasts than their palisade counterparts to enable them have a larger surface area for gas diffusion.
The guard cells have the least amount of chloroplasts on average and so will be number 1. on the graph.
Answer: This symptom is called the ADHD Hyperactive - Impulsive type
Explanation: The full meaning of ADHD is attention-deficit/ hyperactive disorder. It is believed that ADHD is genetic. It is a chronic behavioural disorder that is diagnosed in childhood and can continue into adulthood. Children diagnosed with this disorder experience difficulty with paying attention, sitting still, they fidget, they are hyperactive and easily distracted. We have 3 types of ADHD, they are:
a) ADHD the combined type
b) ADHD the Hyperactive -type
C) ADHD the inattentive and distractible type.
