a. When sensory information is detected by a sensory receptor, sensation has occurred. TRUE
For example, light that enters the eye causes chemical changes in cells that line the back of the eye. These cells relay messages, in the form of action potentials, to the central nervous system.
b. All sensory systems have absolute and difference thresholds. FALSE
Absolute threshold refers to the minimum amount of stimulus energy that must be present for the stimulus to be detected 50% of the time.
c. Sensory receptors are specialized neurons that respond to specific stimuli. TRUE
d. Sensation refers to the way sensory information is organized, interpreted, and consciously experienced. TRUE
Sensation is input about the physical world obtained by our sensory receptors, and perception is the process by which the brain selects, organizes, and interprets these sensations.
answer: retrograde motion
Eutrophication of water bodies like lake, pond, shallow stretches of river, etc. is the phenomenon where excess growth of vegetation on the surface of the water takes place. This excess growth results in the clouding of the water, depletion of dissolved oxygen in water, and the death of aquatic organisms. The primary reason for the cause of eutrophication is the presence of nutrients in excess amounts in the water. The nutrients B. come from fertilizer and sewage runoff.
Answer:
Cellular respiration takes place in the cells of all organisms. It occurs in autotrophs such as plants as well as heterotrophs such as animals. Cellular respiration begins in the cytoplasm of cells.
Explanation:
Answer:
we usually need to measure changes in population abundance, bead representing specific variant can be recovered
