Answer: False
Explanation: A catalyst increases the energy of reactant molecules which causes the chemical reaction to take place.
A catalyst <u>lowers the activation energy </u>of the reaction so that<u> a chemical reaction can take place.</u>
Answer:
options B, E and F
Explanation:
A damage to the medulla oblongata is usually fatal and can also lead to death because it controls vital autonomic functions in the body which includes breathing and heart rate.
The Broca's area is associated with language production and damage to this area can lead to inability to express language (Broca’s aphasia).
A blow to the back of the head might affect the occipital lobe that is associated with visual co-ordinations. Thus damage to this area might not affect the gustatory cortex as this is found in the region of the frontal lobe and not the occipital lobe.
The primary motor cerebral cortex on the left side of the brain controls movement of the right side of the body, and vice-versa, the right motor cortex controls movement of the left side of the body.
The code word is A?........
Answer:
Cone dystrophy is manifested by the loss of acute visual acuity (which cannot be corrected with glasses), severe sensitivity to light (photophobia) and blind spots (scotomas) in the peripheral vision, which progress and produce poor vision in dimly lit or dark environments ("night blindness") and total loss of the peripheral visual field, which can be progressive.
Explanation:
Rod and cone dystrophies (CRDs) are inherited retinal dystrophies. They are included in the group of retinitis pigmentosa, and, more generally, in that of retinopathy pigmentosa. Cones are responsible for color and detail vision. Cone dystrophy is a disease of hereditary degeneration of the cone receptors, whose hallmark includes the "trilogy" of progressive loss of central visual acuity, disturbance in color vision and sensitivity to light (photophobia) which can be progressive.
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).