Many carnivorous plants secrete enzymes to penetrate the hard exoskeleton of insects, so they can absorb nutrients from inside their prey.
许多食肉植物分泌酶以穿透昆虫坚硬的外骨骼，以从猎物体内吸收营养。
The scientists also homed in on a potential mechanism: the activity of a gene responsible for helping the small intestine absorb salt and secrete bicarbonate.
这些科学家还追踪到一种可能的机制：一种基因活跃表达时会促进小肠吸收盐分排出碳酸盐。
Many bacteria secrete AHLs, and simultaneously absorb them from their surroundings.
许多细菌分泌该物质，并且与此同时从周围的环境中吸收这种物质。
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