Diatoms have cell walls composed of silicon dioxide.
A. silicon dioxide.
Environmental science is the science including ecology, biology, physics etc. <span />
Answer:
Vascular dementia
Explanation:
This is a neurologic condition that is brought about as a result a brain injury caused by ischemic damage e.g ischemic damage with atherosclerosis. Vascular dementia is disease of no known cure but it's effect can be treated or suppressed. It is characterized by patient or client suffering from it to have loss of memory, laughing or crying when it's unnecessary or at awkward times e.t.c it occurs as a result of damage of blood vessels in our brain or break down and it occurs as a result of stroke, diabetes and other factors.
Answer:
D
Explanation:
Material is duplicated during Synthesis
The most appropriate statement that is explaining the effect and cause during muscle contraction is. “The release of calcium ions causes myosin and actin to attach to each other.” The activation of muscles helps in the generation of muscles that send out the signals to the neurons.