Zadanie 18
Which forms of energy enter the producer at X and pass to the primary consumer at Y? A. X: thermal; Y: nuclear B. X: chemical; Y: light C. X: light; Y: chemical D. X: kinetic; Y: thermal
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Which forms of energy enter the producer at X and pass to the primary consumer at Y? A. X: thermal; Y: nuclear B. X: chemical; Y: light C. X: light; Y: chemical D. X: kinetic; Y: thermal
Which processes can transfer carbon along X and Y? A. X: photosynthesis; Y: burial B. X: respiration; Y: combustion C. X: feeding; Y: photosynthesis D. X: fossil formation; Y: nitrogen fixation
Which listed human activity is the largest direct driver of the recent increase in atmospheric carbon dioxide? A. Expanding long-lived woodland B. Capturing carbon dioxide in permanent geological stores C. Burning coal, petroleum and natural gas D. Reducing…
Embryos of several vertebrate groups develop a similar post-anal tail, even when this structure is reduced before adulthood. Which interpretation best explains this shared developmental feature? A. They inherited a developmental pattern from a common ancestor…
Over many generations, growers repeatedly choose beet plants with high sugar yields as parents for the next crop. What process is this? A. Random mating without selection B. Selective breeding C. Convergent evolution caused only by drought D. A single acquired…
Which explanation is consistent with the trend in this constructed bacterial dataset? A. The antibiotic gives every bacterium an inherited need to resist it B. Resistance means that bacteria have human-like acquired immunity C. Resistant variants can survive…
Which feature supplies the differences on which natural selection can act? A. Only characteristics acquired through exercise during one lifetime B. The complete absence of differences among individuals C. A guarantee that every organism has a very long…
Which statement correctly connects dietary starch to a human carbohydrate store? A. Starch is converted into amino acids before it can be stored B. Human cells store intact starch granules as their main reserve C. Starch digestion produces glucose that can be…
Which component is present in the walls of both veins and blood capillaries? A. A thick continuous layer of elastic fibres B. Endothelial cells C. Several layers of smooth muscle cells D. Valve leaflets throughout every vessel
The recording covers rest, exercise from minute 6 to minute 22, and recovery. Which brain region sends autonomic signals that adjust the sinoatrial node during these changes? A. The medulla B. The pineal gland C. The thyroid gland D. Subcutaneous adipose…