1 A large quantity of fertiliser has been washed into a stream. Decide whether the following 'rise' or 'fall'. a) Concentration of minerals in the water
b) Total biomass of algae
c) Light levels below the surface
d) Amount of photosynthesis below the surface
e) Mass of decomposing organic matter f ) Number of bacteria
g ) Amount of respiration below the surface
h ) Amount of oxygen dissolved in the water
i) Number of mayfly nymphs in the water j) Number of fish in the water​

Always use significant figure rules. remember that these rules apply to all numbers that are measurements. if a vector that is 3 cm long represents 30 km/h, what velocity does a 5 cm long vector which is drawn using the same scale represent? a.100 km/h b.60km/h c.50km/h

Which is the function of the hypothalamus in thermoregulation? answers: -sensor -effector -stimulus -intergrating center it's either a or c i believe

To store strawberries in sugar syrup, lucy placed them in a jar and covered them with sugar but did not add any water. do you think syrup will be formed? justify. a. no. since water is not added, there cannot be any syrup formation. b. no. the higher concentration of sugar on the outside will cause the water from the sugar to diffuse in the strawberry cells causing them to swell without formation of any syrup. c. yes. the higher concentration of sugar on the outside will cause the water from the strawberry to diffuse out resulting in syrup formation. d. yes. the sugar will melt over time and form the syrup.