Plants release nectar which attracts birds to come and eat. As the bird eats the plant pollen (plant sperm) will get on the bird, and travel with it to other plants were the pollen will falls off and impregnates another plants due to plants having both female, and male bodies thus causing cross-pollination. This happen thru natural selection because the plants has nectar and pollen due them wanting to be able to spread and have more offsprings.
The biogeochemical cycle can be defined as the process by which the vital elements of the living matter are circulated around. The essential elements are moved along all the components of the Earth whether it be biotic component or abiotic component. The chemical substances move through both these parts of the other during a biogeochemical cycle.
Hence, the correct answer is option (c).
Answer:
The correct answer is Active transport moves substances against the concentration gradient.
Explanation:
The principle difference between active transport and facilitated diffusion is that active transport helps in the movement of various substances in the uphill direction which means against the concentration gradient.
In simple words active transport helps in the movement of substance from the region of low concentration to a region of high concentration.
On the other hand during facilitated diffusion substances move along their concentration gradient which means from the high concentration region to the region of low concentration until the concentration of both sides become same.
Answer:
C
Explanation:
DNA and RNA are the only nucleic acids on this list
In the nucleus. Hope this helps