2. All animals need food to survive. An animals species can be a food source to another.
3. If some species of animals and plants become extinct, other species may also face extinction.
4. When this happens, we will face a shortage of resources.
5. The survival of humans also depends on the survival of animals and plants. We cannot live without them.
- Besides mammals, birds, some reptiles( crocodile, snakes) and certain fish take care of their eggs and young.
- The tilapia fish carries its eggs in its mouth until they hatch into small fish.
- A father penguin withstands the extreme cold of the Antarctic for 60 days to incubate its egg by keeping it on its feet. It loses a lot of weight to keep the egg safe. The mother hunts for food.
- To ensure the survival of the species, animals
* lay eggs or give birth to young.
* keep the eggs in safe places.
* take care of their eggs and young.
- The main function of seeds is to ensure that the plant species continues to exist.
- The dispersal of seeds and fruits ensures the survival of the species.
1. The diagram below shows an activity of an animals.
What is the purpose of these activities?
D. Survival of the species
A bird incubates the eggs so that the eggs will hatch. It then feeds the chicks so that the species continues to exist.
2. The diagram below shows the fruit of a plants.
Which plant disperses its fruit in the same way as the above plant?
A. Love grass
- The lallang fruit has fine hairs. It is dispersed by wind.
- Love grass has hooks. It is dispersed by animals.
- The dandelion seeds have fine hairs. It is dispersed by wind.
- The coconut can float. It is dispersed by water.
- The guava has a fleshy and edible fruit. It is disperse by animals.