Answer:
Explanation:
Let's start with the formula for density.
Density = mass / volume
The mass is a constant. So it has no effect on the answer. Call it 10 grams in both cases.
The volume of the small object is 10 cc.
The volume of the larger object is 30 cc
Density of the small object = 10 grams / 10 cc = 1 gram / cc
Density of the larger object = 10 grams / 30cc = 1/3 gram / cc
Conclusion.
If the mass is held constant, the higher the volume, the less the density.
Every so often Brainly publishes a fun fact. The fact is "Saturn would float in a bathtub filled willed with water." The bigger the volume, the smaller the density.
Photosystem II is the correct answer
Answer:
D
Explanation:
Nucleus contains all the genetic material that codes for different proteins that control the cell's actions. It's surrounded by a nuclear membrane.
However,
- Mitochondria is used for energy production and isn't surrounded by a nuclear membrane. It's in fact surrounded by 2 membranes.
- Pinocytic vesicles usually contain endocytosed material from outside that has nothing to do with the cell's control.
- Nucleolus is inside the nucleus and is used to make rRNA needed for ribosomes production. A nucleolus is not surrounded by any membrane.
Explanation:
Simple Diffusion across the Cell (Plasma) Membrane The structure of the lipid bilayer allows only small, non-polar substances such as oxygen and carbon dioxide to pass through the cell membrane, down their concentration gradient, by simple diffusion.