Biology TEKS 12B

The Indian leaf butterfly has traits that allow it to resemble a leaf. The bright colors of the monarch butterfly indicate that the butterfly tastes bad and can be poisonous.

How does the appearance of these butterflies help them to survive?

• The Indian leaf butterfly is able to avoid predators while the monarch butterfly warns predators away.

• Both butterflies rely on camouflage to avoid predation.

• Both butterflies cooperate with one another to avoid predation.

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The iris controls the size and shape of the pupil. Which eye most likely belongs to an animal that is active most of the day on white desert sand?

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Leaves of plants commonly found in a grassland biome grow up from horizontal underground stems rather than from vertical above ground stems. Why would this be an advantage?

• The plant can rapidly grow new leaves after being eaten.

• The plant can survive in soil that provides no nutrients.

• The plant requires more moisture than other plants in the biome.

• The plant needs less sunlight than other similar plants.

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A bird stands on one leg and pulls the other up close to its body, covering the leg with its feathers. Then, the bird fluffs up its feathers and tucks its beak beneath its wing. Which of these most likely describes the reason for this activity by this bird?

• It is a desert bird trying to conserve water.

• It is a forest bird trying to avoid predators.

• It is a tundra bird trying to conserve heat.

• It is a tropical bird trying to find food.

The table below compares hemoglobin levels and breathing rates of people living in two high-altitude regions.

Which of these best describes the similarity between the adaptations of Tibetans and Andeans?

• bringing a larger air volume into the lungs

• increasing the rate of respiratory function

• reducing blood pressure in lung arteries

• delivering enough oxygen to body cells

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Thick fleshy stems with thick waxy covering would most likely be useful adaptations for which of the following types of plants?

• desert plants that need to conserve water

• prairie plants that need to survive fires

• tundra plants that need to conserve heat

• rainforest plants that need to repel insects

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Metabolism produces nitrogenous compounds that must be excreted from the body. These compounds can be excreted as different types of waste products. Some characteristics of each type of waste are shown in the tables below.

Which organisms are most likely to excrete their wastes as uric acid?

• Saltwater Fish

• Desert Animals

• Freshwater Fish

• Tropical Mammals

Some plants have very long taproots. This adaptation helps these plants survive in a –

• tundra by taking water from below the permafrost

• prairie by absorbing large amounts of surface water

• desert by reaching deep underground water supplies

The arctic hare on the left and the jackrabbit on the right are adapted to live in very different types of environments. The longer ears of the jackrabbit are most likely an adaptation that enables the animal to _____________.

• collect water

• release body heat

• hide from predators

• absorb solar energy