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Use argument supported by evidence for how the body is a system of interacting subsystems composed of groups of cells.
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GeneticsExplainer: What is RNA?
A partner to DNA, cells use this molecule to translate the instructions for making all of the many proteins that your body needs to function.
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PlantsWell-known wildflower turns out to be a secret meat-eater
Look closely at Triantha occidentalis, and you’ll see gluey hairs — and a trail of insect corpses on its stem.
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Health & MedicineScientists Say: Tonsils
The tonsils are pads of tissue in the throat that are part of the body’s immune system.
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TechSynthetic trees could tap underground water in arid areas
They also could also help coastal residents mine fresh water from salty sources.
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Health & MedicineCannabis may alter a teen’s developing brain
Marijuana use between ages 14 and 19 was linked to faster thinning of brain regions important in decision-making.
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AnimalsHere’s how sea otters stay warm without blubber or a large body
For the smallest mammal in the ocean, staying warm is tough. Now, scientists have figured out how the animals’ cells rise to the challenge.
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AnimalsAbdominal fuzz makes bee bodies super slippery
Scientists find that tiny hairs on a honeybee’s abdomen reduce wear and tear as a bee’s outer skeletal parts rub against each other all day long.
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AnimalsUncovering secrets of the glasswing butterfly’s see-through wings
The tricks of its transparency include sparse, spindly scales and a waxy coated membrane.
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AnimalsA bubble of air lets some lizards breathe underwater
Anolis lizards leap into streams to escape danger. Now researchers have figured out how they can stay underwater for up to a quarter of an hour.
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Health & MedicineCool Jobs: Saliva offers a spitting image of our health
Scientists are using this secretion to study our body’s functions, to test for disease and even to diagnose injury.
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BrainExplainer: What is a neuron?
From the moment you are born, cells called neurons sense information, process it and then pass it on. Neurons allow you to do everything that you do.
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BrainSearch for ‘rewards’ is big driver in remodeling a teen’s brain
Communication ‘highways’ in the brain undergo a major overhaul as children morph into adults. Dopamine plays a big role in this remodeling project.