Breathe in, breathe out, most of the gas that just passed through your mouth is:
oxygen, nitrogen, water vapor, or co2?

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that

In "the pig," what is the main effect that the piglet initially has on kibuka?