undesirable traits people should avoid when driving are a.all the answsers b . aggressiveness c.exhibition d.egotism witch of the following is the answer
Nicotine from cigarette smoke does not produce congenital malformations but it does affect the foetus. Name one effect it can have on a developing foetus.
A lack of Vitamin D is said to be detrimental to the maintenance of bone density. If a scientist wanted to determine whether this view was supported by scientific evidence, which of the following would be the best method of doing so? (a) carry out a survey of people with normal bone density to find out whether they take Vitamin D tablets or not (b) compare the bone density of two groups of people with low bone density after providing only one of the groups with Vitamin D (c) compare the incidence of people with low bone density in two different populations (d) carry out an experiment in which a group of people with normal bone density are exposed to very little sunlight to prevent the production of Vitamin D
Alzheimer’s and Parkinson’s are both diseases affecting the central nervous system and they share some similar characteristics. Which of the following is only true for Alzheimer’s disease? (a) Patients suffer from the degeneration of nerve cells in the brain. (b) Symptoms can be treated with medications that increase acetylcholine in the brain. (c) It mostly affects people over the age of 55 and presently has no cure. (d) Patients lack a neurotransmitter essential for normal brain functioning
