Answer:
The cell membrane acts as a barrier that protects the cell from the external environment and it regulates the movement of the particles or substances in and out of the cell.
Answer:
The correct answer would be Both types of fingerprints can often be easy to obtain from the crime scene.
DNA fingerprinting is a technique used for a paternity test and in establishing a link between the biological evidence and suspect in the crime, identification of dead bodies et cetera.
It is based on the similarities and differences associated with the DNA sequence of organisms especially the non-coding or junk DNA.
The DNA fingerprints are developed in labs, they are not found at crime scenes.
At the crime scene, pieces of biological evidence such as blood, skin, hair et cetera are taken from which DNA could be extracted.
Answer:
From the given information, the transport of glucose in blood across the red blood cells takes place by facilitated diffusion, that involves the spontaneous passive-transport with the help of trans-membrane proteins or transporter proteins to move the ions or molecules down the concentration gradient.
While the transport of glucose in intestines take place via active transport mechanism. It takes place from gut into intestines. It occurs against the concentration gradient with the help of energy molecules like proteins.
If they don’t want technicalities then C. It remained sitting still/ but if they don’t mind it’s A. It rolled away at a speed less than 5m/s.
Metal contain free electrons which makes it easier to transfer energy through the solid (conduction). Non-metals are poor conductors (insulators) because they do not contain free electrons.
Hope this helps!
-Payshence
