The main goal is to move substance across the cell membrane. There is one main difference between facilitated diffusion and active transport. ... With active transport, the protein changes shape by using ATP. Energy is needed in this form of transport because the substances are going against the concentration gradient.
Answer:
Infectious diseases are caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi; the diseases can be spread, directly or indirectly, from one person to another. Zoonotic diseases are infectious diseases of animals that can cause disease when transmitted to humans.
Answer:
The young birds are hosts for the larvae.
Explanation:
A host is an organism that harbours the invertebrate or microorganism and experiences disease. The disease that the larvae are causing is threatening the population of birds.
Answer:
A.
Explanation:
Dinosaurs and old trees are samples of ancient earth which can be compared to the actual world showing the difference between now and then.
