2nd Grade Science : Life Science
Study concepts, example questions & explanations for 2nd Grade Science
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Example Questions
Example Question #12 : Diverse Habitats
Which habitat would most likely have the lowest diversity among animal species??
Swamp
Coral reef
Tundra
Rainforest
Tundra
A tundra would have the lowest diversity among animal species because of the harsh conditions for survival. Antarctica is one example of a tundra habitat. Antarctica is the coldest place on our planet. Temperatures can reach -120oF, and winds can be powerful. There are no plants or animals that can make their homes permanently in central Antarctica. This area has no resources for animals, so they cannot survive.
Example Question #3 : Observe Animals To Compare Diversity In Various Habitats
Which conclusion is not supported by the data table above?
Not all habitats have the same levels of animal diversity.
The habitats that are natural and humanless have more animal diversity.
The habitats that are human-made or human-filled have the same animal diversity as natural places.
The habitats that are human-made or human-filled have less animal diversity.
The habitats that are human-made or human-filled have the same animal diversity as natural places.
When reviewing the data table, scientists and readers can draw a conclusion or make a statement about what the information has revealed. Human-made or human-filled places like the parking lot have fewer animals present than the other locations. When looking at the list of animals from the more natural sites, there are far more species present. This allows us to conclude that there is greater animal diversity in those areas. This means that "The habitats that are human-made or human-filled have the same animal diversity as natural places." is not supported by the evidence in the data table.
Example Question #1 : Observe Animals To Compare Diversity In Various Habitats
Which environmental factor could cause an animal population to be less diverse?
No plants
Freezing temperatures
All of the answer choices are correct
Little rainfall
All of the answer choices are correct
All of these environmental factors could cause an animal population to be less diverse. If an animal is not adapted to freezing weather or very little rainfall, they will not have the necessary structures or characteristics to survive. If the animal is an herbivore and there are no plants present, the animal will starve. These are all factors that could limit an animal population.
Example Question #3 : Observe Animals To Compare Diversity In Various Habitats
How does the diversity of animals compare among different habitats?
Depending on the conditions in a habitat the animals may vary.
The same animals live in each habitat because they all have similar conditions.
Humans do not know about animal diversity, and it cannot be studied in different habitats.
There is no way to compare the diversity of animals in various habitats.
Depending on the conditions in a habitat the animals may vary.
Each habitat is very different and has animals that are suited to living in that specific environment. The species vary significantly from place to place, as do the number of animals. There are 228,450 known animal species in the ocean, nearly 6,000 animal species in Australia, and almost 1,000 different species in the Florida Everglades alone. Just these three places show such a variance in animal diversity. Depending on the conditions in each environment, the animals will vary.
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