A prey is an animal that is being eaten by a predator.
- If prey population decreases in number, the predator population will also decrease because there is not enough food for predators to survive.
- If predator population decreases, the prey population will increase because less prey will be eaten by predators.
- If prey population increases, the predator population could also increase because there will be a lot of food for them.
- If predator population increases, the prey population must decrease because more predators will eat more prey.
The answer is macrophages. They either actively invade these leukocytes or are phagocytosed, divide in the cells and cause lysis. The promastigotes that invade these leucocytes are transformed into amastigotes in the macrophages. These amastigotes continue attacking other healthy macrophages while others migrate to the mid gut.
Answer:
A tick sucking a deer's blood
Explanation:
All other examples show mutualistic relationships - both species benefit from the relationship. With parasitism the one species benefits (the tick) while the other suffers (deer).
Lazzaro Spallanzani's experiment is a good example of creativity, because he designed the experiment and found a new way to explore gastric juices. So...
Lazzaro Spallanzani, an Italian biologist and physicologist, was the first scientist to dissect animals for digestion trials.
He used the animals as models for humans digestive system, designed the experiment, and was the first to interpret the process of digestion.
I hope that helped ^_^
