Question

Which actions can be taken to plan for a drought? Check all that apply.

Replace low-water plants with grass.
Pour excess water down the drain.
Repair leaky bathroom faucets.
Take longer showers.
Turn off water while brushing teeth.

Answer 1

To effectively plan for a drought, the following actions can be taken:

1. **Repair leaky bathroom faucets.** - Fixing leaks prevents water waste, conserving water resources.

2. **Turn off water while brushing teeth.** - This helps reduce unnecessary water usage.

The other actions listed would not be effective for planning for a drought:

- **Replace low-water plants with grass.** - This is counterproductive, as grass typically requires more water than drought-resistant plants.

- **Pour excess water down the drain.** - This wastes water that could be conserved.

- **Take longer showers.** - This increases water usage, which is not advisable during a drought.

So, the correct actions to check are: **Repair leaky bathroom faucets** and **Turn off water while brushing teeth.**

Answer 2

Some plant seeds are adapted to sprout with a limited amount of water. For what environmental change are these seeds most likely adapted?

earthquake
tsunami
drought
global warming

Answer 3

Seeds that are adapted to sprout with a limited amount of water are most likely adapted for **drought** conditions. These seeds have evolved mechanisms to survive and germinate in low-moisture environments, allowing them to take advantage of infrequent rainfall.

Answer 4

During the winter, this species of hare has white fur, but in the summer, it has brown fur. What environmental change may have led to this hare's fur color?

drought
snow cover
asteroid impact
global warming

Answer 5

The environmental change that may have led to the hare's fur color changing from white in winter to brown in summer is **snow cover**. The white fur provides camouflage in snowy environments, while the brown fur helps the hare blend in with the summer landscape, which typically lacks snow. This seasonal color change is an adaptation to help the hare avoid predators.

Answer 6

Use the drop-down menus to complete the statements.


occurs when an entire species cannot adapt to a long-term environmental change.

A population that cannot find food after a flood may
to survive.

Over many generations, the buildup of favorable adaptations in a population may lead to
.

Answer 7

Here are the completed statements:

1. **Extinction** occurs when an entire species cannot adapt to a long-term environmental change.

2. A population that cannot find food after a flood may **die off** to survive.

3. Over many generations, the buildup of favorable adaptations in a population may lead to **evolution**.

Answer 8

Use the drop-down menus to complete the statements.


✔ Extinction
occurs when an entire species cannot adapt to a long-term environmental change.

A population that cannot find food after a flood may
✔ migrate
to survive.

Over many generations, the buildup of favorable adaptations in a population may lead to
✔ speciation
.

El Niño causes excessive rains in the Midwestern United States. These rains lead to flooding across the region.

Which effects are most likely to result from the environmental changes? Check all that apply.

population loss of small animals
forced migration of some populations
speciation
extinction of many species
loss of habitat

Answer 9

Based on the effects of excessive rains and flooding caused by El Niño, the following outcomes are most likely to result from these environmental changes:

1. **Population loss of small animals** - Flooding can lead to loss of life and decrease in populations due to loss of habitat and food sources.

2. **Forced migration of some populations** - Animals may need to move to find food and stable habitats as their current environment becomes inhospitable.

3. **Extinction of many species** - If flooding leads to severe habitat loss and food shortages, some species may face extinction.

4. **Loss of habitat** - Flooding can destroy local habitats, making it difficult for many species to survive.

**Speciation** is less likely to occur directly as a result of flooding in the short term; it typically requires a longer time frame and specific conditions for new species to evolve.

So, the correct answers are:
- **Population loss of small animals**
- **Forced migration of some populations**
- **Extinction of many species**
- **Loss of habitat**

Answer 10

population loss of small animals
forced migration of some populations
loss of habitat


Human activities include the clear-cutting of areas of forest to make space for farming.

Which effect is most likely to occur as a result of clear-cutting?

extinction of species
death of organisms
speciation
global warming

Answer 11

The effect that is most likely to occur as a result of clear-cutting areas of forest to make space for farming is **death of organisms**. Clear-cutting leads to habitat destruction, which can cause the death of various organisms that depend on the forest for shelter and food.

While clear-cutting can also contribute to **extinction of species** over time due to habitat loss, the immediate effect is the direct death of organisms within the impacted area. Speciation and global warming are not direct immediate outcomes of clear-cutting itself.