Answer:
Protists help break down dead material and help produce oxygen
Explanation:
I just took the quiz on k12
Answer:
d
Explanation:
reservoirs are places were water are held for a lond period of time. Do a lake or ocean is a place where water is held for a long period of time.
Answer:
16. Directional Selection
17. Disruptive Selection
18. Stabilizing Selection
19. Natural Selection
20. Adaptation
Explanation:
In population genetics, directional selection/positive selection is a mode of natural selection in which an extreme phenotype is favored over other phenotypes.
Disruptive Selection would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle.
Stabilizing Selection. Occurs when individuals at the extremes of the range of characteristic are selected against. This means that the "average" individuals are selected for.
Bees can get in and out, carrying pollen with them from flower to flower pollinating as they go. On the the other hand, Gymnosperms have to let their seeds somehow travel away and plant itself, or with the help of nature, they plant themselfs
But it is easier for those flowering plants to pollinate.
=)
Answer:
When soluble soil nutrients from the soil are washed away due to to effects of rain,floods or irrigation from agricultural practices the process by which this occurs is called LEACHING. As water molecules pass through different soil layers,soluble soil minerals are dissolved and carried by the water into the ground water.
Phosphorus is a soluble mineral which is easily carried away by the passing water molecules,and therefore drained from plants' roots.
if these were leached into rivers and drinking water,this may affect the water supply of the community as the percentage of Phosphorus increases in the water especially if NPK fertilisers were used.
In addition, some important solid nutrients are also leached into the underground soil layer leading to deficiencies in the plants.
Explanation:
