Which of the following is a product of producers in an ecosystem? 1. nitrogen
2.carbon
3. carbohydrates
4. carbon dioxide ​

1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?

Which of the following sentences has a compound predicate?

Thyroid-stimulating hormone stimulates the thyroid gland to secrete sex hormones. true or false