When one frog's heart is stimulated and the extract from this stimulated heart is transferred to the heart of another non-stimulated frog, the rate of heart beat of the second frog will be increased too because of the transmission of the impulses via the synapses. Hence, this observation proves that the transmission of the impulses at the synapses is a chemical event.
Explanation:
New cells are created from existing cells through a process referred to as the cell cycle
Answer
similar characters evolved owing to convergent evolution; similar characters are ancestral
Explanation:
Convergent evolution happens when two organisms belonging to different species, living at different times or different continents but the same biome develop analogous structures hence making them appear similar. The analogous structures were not present in the known ancestors of both groups.
Therefore convergent evolution is ignored during constructing phylogenies
Also similar characteristics that are ancestral are ignored.
Answer:
A nutrient can be described as a substance which is used for the survival, growth and reproduction of an organism.
Three nutrients which plants require are:
NITROGEN (N): Nitrogen is important for growth and immunity. Without nitrogen, the plant will not be able to grow or produce immunity.
PHOSPHORUS (P): Strengthens root systems, capacity for seed creation, disease resistance, and pest prevention. Improves flowers and blooming. Also strengthens tissues and flavors in edibles and veggies. Without phosphorus, plants will not be able to produce sweet fruits.
CALCIUM
Strengthens and fortifies overall tissues everywhere. Also helps neutralize acidity, both within the plant and in its surrounding soil, for optimal health.
