Answers: 3
Biology, 22.06.2019 05:40, Student658
Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine
Answers: 1
Biology, 22.06.2019 09:30, kamjay2006
What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid
Answers: 1
2. Why do we need carbohydrates ?Name three sources of carbohydrate in our food ...