Explain symbiosis, including the three different types: mutualism, commensalism, and parasitism. Give an example in each category.
20 POINTS!

What organelle other than the nucleus houses dna in a eukaryotic cell?

What could happen if two base pairs on a strand of dna or switched

Answer asap 50 points which of the following distinguishes the soil composition of grassland? 1. the soil supports large trees with thick, long roots, so horizon b needs to be deep enough to sustain larger flora. 2. the soil supports large trees with thick, long roots, so horizon a needs to be deep enough to sustain larger flora. 3. the soil supports small plants and shrubs with short roots, so horizon a needs to be deep enough to sustain smaller flora. 4. the soil supports small plants and shrubs with short roots, so horizon b needs to be deep enough to sustain smaller flora.