Use the chemical equation to find the answers.

h2co3 → h2o + co2

identify how many oxygen atoms are in the product.

identify how many oxygen atoms are in the reactant.

The body is protected against harmful flu viruses by

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.

Aplant may open end close its stomata to prevent excess water loss and maintain