Science Ujian Yayasan

Which of the following behavioral adaptations is common to animals like dolphins and hyenas?

• They hibernate during winter.

• They migrate to find food.

• They find food in groups.

• They change their color to blend in with the surroundings.

The components of the ecosystem are in a constant state of interaction, which is crucial for the stability of the ecosystem. Which interaction takes place between the tree and the Spanish moss? 

• parasitism

• mutualism

• competition

• commensalism

As an 11-year-old student, the following are positive ways you can impact the declining welfare of the environment except...

• Helps minimize carbon emissions by using public transportation, carpooling, biking, or walking instead of cars.

• Use single-use items such as plastic bags and boxes.

• Practice water-saving techniques, such as turning off the faucet when not in use and reducing the bath time.

• Use alternative energy such as wind and solar energy.

Which of the organisms in the food web below is considered the apex predator?

• foxes only

• rabbits only

• foxes and owls

• owls and birds

What will be the result if the population of the grass decreases?

• The population of the grasshopper will decrease.

• The population of the birds remains stable.

• The population of the rabbit continues to increase.

• The population of grains will increase.

Trophic energy levels refer to the point at which the organisms share the same nutritional relationship to the primary sources of energy. Each level represents a transfer of energy from one group of organisms to another within an ecosystem. In the diagram below, which receives the least energy that flows throughout the food web?

• Producers

• 1st consumers

• Tertiary consumers

• Decomposers

Humans play a very important role in the conservation of animals and plants. Humans build laboratories and zoos where animals are kept and taken care of. Some build botanical gardens where they can keep and produce more species of plants. These ways to conserve animals and plants are examples of Ex-situ conservation. Which among the examples below is an example of In-situ conservation?

• When animals and plants are protected by humans within their own habitat.

• When the animals are kept by humans as pets.

• When the plants are moved and planted at homes.

• When the animals are placed in aquariums.

In the current situation, a lot of animals are endangered by extinction due to which of the following factors? 

• Loss of habitat due to urbanization and deforestation.

• Pollution from industrial activities and chemical contaminants from agriculture cultivation.

• Poaching for commercial purposes.

• All of the above

The classification of animals can be determined by analyzing significant factors such as their unique physiological structures and their natural habitats. By examining these elements, we can gain a deeper understanding of the characteristics and behaviors of different animal species. Which of the following groups of animals are correctly categorized?

• tiger, dog, snake

• goat, cattle, giraffe

• human, deer, shark

• seal, eagle, termite

Organisms have unique ways of reproducing and developmental stages to adapt to their environment, with some sharing similar stages. Determine which animals group accordingly based on the way they reproduce.

• clownfish, stingray, buffalo

• kangaroo, sea turtle, frog

• platypus, eagle, crocodile

• cheetah, parrot, white shark