Old-style clothes pins.
- Use a model :)
Use a walnut or peanut
an observation
Osmosis is the process where water passes into our tissues through a semi-permeable membrane. All of our cells are surrounded by a membrane that selectively allows in anything the cell needs but prevents unwanted molecules from entering. An egg also has a membrane surrounding it so we can use it to represent a cell and see how osmosis works.
ATP is produced for use by cells
ATP is produced for use by cells
A handshake can be used to represent trust or an object portraying a handshake. Perhaps a heart can also represent trust.
Scientists could use the cell theory to determine if an object is an organism by examining its structure under a microscope for evidence of cells. If the object is composed of cells with a defined nucleus and membrane-bound organelles, it would align with the principles of the cell theory and likely be considered an organism. Additionally, observing characteristics such as growth, reproduction, and response to stimuli would further support this classification.
Any object containing dead cells is made up of cells and has DNA. However, dead cells will not grow or use energy.
When the scientist is trying to represent an object or a system.
Nerve cells and muscle cells are excitable. Their cell membrane can produce electrochemical impulses and conduct them along the membrane. In muscle cells, this electric phenomenon is also associated with the contraction of the cell. Thank you, regards (me).
You can use science texts to represent forces of an object by describing the magnitude, direction, and type of force acting on the object. For example, you can explain the gravitational force pulling an object downwards with a specific value in newtons, or describe the contact force exerted by a surface on the object in a given direction. Use relevant equations or diagrams to support your explanations.