Store and transmit genetic information: nucleic acid
Are primarily used to store energy: lipids
Help regulate cell processes: proteins
Are used for main source of energy: carbohydrates
9. It is a warm summer night, 32oC, with the relative humidity at 100%. During the night, the air temperature drops to 18oC. You would expect to see___on the ground in the morning.
A) dew
10. Scientists believe that during the Late Cretaceous period, many small seas dried up and new mountains began to rise. Which would MOST LIKELY cause them to believe the temperature decreased during this time?
A) The absence of fossils of warm-weather plants.
11) A hurricane is MOST LIKLEY to occur in an area
A) near warm water.
12) A team of archaeologists excavating a sedimentary rock layer come across some primitive hunting tools used by early humans. As the dig progresses, they unearth the fossilized remains of a dinosaur from another layer of the sedimentary rock. Why do these discoveries indicate that the rocks were formed over millions of years?
C) Dinosaurs became extinct millions of years before humans appeared.
Hope I helped!
Answer: cell membrane
such as water, micro-organism
physical process
simple diffusion, osmosis and filtration
such as potasssium permaganate in water,urea a liver waste diffuses from the body and the kidney help in filtering it out
physiological processs
active transport, phagocytosis and pinocytosis
such as soduim-potassium pump, exocytosis
Explanation: transportation in and out of cell is done in different ways listed above but a barrier to this movement is the cell membrane which is an outer covering of the cell. it protect the cell and only some materials can penetrate the cell membrane e.g micro-organism, water e.t.c. the various physical and physiological processes are the various ways substance cna be liquid, solid or gas are transported within or outside the cell e.g food
Answer:
To replace dead or damaged skin cells.
Explanation:
Diffusion is the type of transport that oxygen and carbon dioxide use to cross the cell membrane
