There are a variety of vaccines available to prevent infectious diseases. When a person receives a vaccine, they typically produce antibodies. 1. Why don't the antibodies produced by a person receiving a vaccine against one infectious agent (like hepatitis A virus) protect that person from a different infectious agent (like
measles virus)? Make sure your answer is specific and detailed!
2. Many vaccines, like the one against measles virus, only need to be given a few times to a person during their lifetime. Why do people need to receive a vaccine against influenza
virus (a flu shot) every year? Again, make sure your answer is specific and detailed.

Sea levels are rising due to climate change while increasing numbers of people are moving into coastal areas. to accommodate more people, there has been increased construction of beachfront resorts and condominiums. how is this impacting sea turtle numbers and biodiversity and why? a. the increased human population in coastal areas has meant that more food is available to the turtles (e.g., dropped food, waste from restaurants), which has led to an increase in the numbers and diversity of sea turtles. b. there has been very little change in the numbers and biodiversity of sea turtles because the planet is so vast that they can simply relocate to less crowded beaches. c. this has resulted in a decrease in numbers and diversity of sea turtles because it is restricting available nesting sites, and hence reproduction. d. this has resulted in an increase in numbers and diversity of sea turtles because people are around to protect them from natural predators.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination