Answer:
I think it is both 1 and 2
Explanation:
Answer: D. at most 10
Explanation:
Using the energy pyramid, the ratio of grassland to primary consumer to secondary consumer is: 100:10:1 respectively.
Thus if the grassland supports 100 cattle (primary consumer), the numbers of humans (secondary consumer) the cattle can feed will be;
100/10 = 10.
Fertilization takes place in the fallopian tube
Answer:
Radio waves, microwaves, infrared and visible light can all be used for communication.
Answer: D
They often occur spontaneously, because when energy is released during a chemical reaction it does not usually happen slowly.
