Which letters can be used to model Mendel’s cross of true-breeding tall plants with true-breeding short plants in a Punnett square?

What came first the elephent or the crocodile

Which plant has a visible leaf modification that will it conserve water in extremely dry environments?

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect