Answer:
C. the cultural tradition of using stones to crack nuts has arisen in only some populations
Explanation:
The cultural tradition of using stones to crack nuts has arisen in only some populations of the Chimpanzees who live in environments containing oil palm nuts, meaning not all Chimpanzees actually use stone to crack down the nut except few of them and this because their environment contain oil palm nuts.
1. a wide variety of factors. heat, climate, weather, natural disasters that lower the population of prey animals, etc
2. well and example is this: it is getting hotter in Antarctica, causing the ice caps to melt. this change would make it harder for prey animals like penguins to find somewhere to live, thus making them easier food for predators. such as killer whales and polar bears.
3. the more trees we cut down to make room for buildings, for instance, causes many animals habitats to dissapear, the animals shortly after
Answer:
Stomach
Explanation:
Well, why would the stomach be a part of the circulatory system? The circulatory system is responsible for moving blood and nutrients through the body. Blood is pumped from the heart, into arteries, and back into the heart through veins.
Answer:
Humans get the energy and matter they need to survive from the food they eat. The foods humans eat contain carbohydrates, vitamins, and protein. All of those components are broken down by the human body with the aid of digestion.
