3 is parasitism, 2 is mutualism, and 1 is commensalism.
Lipids and proteins
(however our bodies mostly break down sugars e.g. glucose and are the only molecules we can break down without the need for oxygen)
Answer:
All the puppies have black hair because albino alleles are found in two different genes.
If we let the letters A and B represent the two different pigmentation genes, the one of the dogs is AAbb, and the other is aaBB.
Their offspring are AaBb and so there are not albinos because they have one dominant copy of each gene.
The Glossopteridales occur on the most landmasses
