The process of petrifaction can include which of the following: • Silica from the ash soaks into the wood, turning it to stone when it dries
• Volcanic ash blows into the water
• Living plants like trees can be submerged in water
• All of the above

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Ascientist is studying muscle twitches in chicken quadriceps. to activate the muscle, he needs to provide stimulus to the

Which statement describes an endocrine function rather than an exocrine function? a. salivary glands release saliva into the mouth. b. sweat glands release sweat onto the skin c. the pineal gland releases melatonin into the blood. d. esophageal glands release mucus into the esophagus.

What would happen if the krill were removed from the food web