Explain the differences and similarities between the eggs of a frog, bird, and a mammal

size and amount of yolk

Explanation:

The main difference between the eggs of a frog, bird and mammals is their size. The size of frog egg is small as compared to bird and mammals. Egg laying mammals have bigger egg . The similarities between eggs of frog, bird and egg laying mammals is the high amount of yolk in the egg which is used as a source of food by the embryo that is present inside the egg during the developmental stages.

fabric is silk wool ext. paper isnt

explanation:

u cant make fabric out of paper cause paper comes from wood while fabric comes from animals

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products