These nonvascular plants were the first land plants from the paleozoic era. a. liverworts b. hornworts c. mosses d. merchantia

d. merchantia is my final answer

the correct answer is:

a population changes in response to a change in the environment.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.