A number of stars that orbit each other bound by gravitational attraction.
Explanation:
No. Surface contact area also no. The main issue is the types of materials in contact. Surface roughness somewhat matters. Certain surfaces such as ice are special in that pressure melts the ice.
Sorry that this is a bit late but.... it is
( The spring Scale reads 22 Newton’s when a object is fully submerged in water.)
Answer:
The correct answer is:
Transport occurs with the help of membrane proteins
Explanation:
Facilitated diffusion is the passive (no energy required) movement of molecules across a cell membrane, with the aid of a membrane protein. energy in form of ATP or GTP is not required since molecules are moving down their concentration gradient.
The need for facilitated diffusion occurs when substances cannot successfully cross the phospholipid bilayer of the cells membrane on their own either due to their polarity or large size. The proteins in facilitated diffusion are tthose that act as carriers and those the form the channels across the membrane, through which the diffusion occurs. Examples of where facilitated diffusion is seen is in the transport of glucose (relatively large molecule) across the cell membranes, with the help of the glucose transporter and the transportation of water molecules across the cell membrane through aquaporins.
-The Answer is A Ultraviolet-
Explanation: UVA (Ultraviolet) rays can cause serious damage to your skin.
