Q1. Cells, tissues and organs are adapted to take in different substances and get rid of
different substances.
The table shows the concentration of four ions outside cells and inside cells.
lon
Concentration
outside cells in mmol
Concentration inside
cells in mmol per dm
per dm
Sodium
140
9
Potassium
7
138
Calcium
2.
27
Chloride
118
3
(a)
Use information from the table above to complete the following sentences.
Sodium ions will move into cells by the process
of
Potassium ions will move into cells by the process
of
(2)

Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.

80 points pls brainliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula. 5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects. 8. describe the planets’ orbits around the sun. 9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets. 13. what causes the seasons?