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Scientists use bottom-up approaches to create complex structures such as nanomaterials, molecular assemblies, and biological systems. By starting with individual components and building upwards, they can create precise and tailored structures with specific properties and functions.

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1y ago

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What bones are involved in pull ups?

Pull ups primarily target the muscles in the back and arms, including the latissimus dorsi, biceps, and forearms. While the bones that make up the arms (humerus, radius, ulna) are involved in the movement, the main bones directly involved in pull ups are the scapulae (shoulder blades) and the spine. The scapulae move and stabilize during pull ups, while the spine provides support and alignment throughout the exercise.


Why are the bottoms of petri plates labeled rather than the lid?

1) The bottom of the plate contains the agar and your experiment, if the lid gets lost but the bottom is labled you haven't lost any work. If you label the lid and the lid gets lost you won't be able to identify your experiment. You would have to start from the beginning, making plates, sterilizing plates, doing the experiment; perhaps not an option if it were a clinical sample. 2) The plates are placed in the incubator with their bottom half upper most. This is done to prevent droplets of moisture falling from the lid and smearing the culture. As the bottom is upper most when you are looking in the incubator it makes sense to label the bit you can see most easily.


What does calisenics mean?

Calisthenics is a form of exercise that uses only one's body weight for resistance, often involving movements like push-ups, squats, and pull-ups. It can help improve strength, flexibility, and endurance.


My front bottom ribs are sore to the touch at the most center point on either side you did not fall what could cause this?

I have this same soreness and I believe it is the result of working out, especially abdomen crunches and/or pull-ups with knee-ups and leg lifts which work lower and upper abs. This can happen if you have not done these types of exercises for a while and then stress the area. The soreness is likely muscular (but may also result from a slight stress on the lower rib cage) and should subside in a couple of days.


Loss of teeth is most commonly associated with diseases of the?

Loss of teeth is most commonly associated with gum disease (periodontal disease) and tooth decay (cavities). These conditions can lead to weakening of the structures supporting the teeth, resulting in tooth loss. Proper oral hygiene and routine dental check-ups are important in preventing these diseases.