Question
Use the video to answer the question.
What was interesting to Darwin about the Star Orchid?
(1 point)
Responses
A. Its petals were white.
A. Its petals were white.
B. Its nectar tube was a foot long.
B. Its nectar tube was a foot long.
C. He saw a strange moth drinking its nectar.
C. He saw a strange moth drinking its nectar.
D. It was from Madagascar.
D. It was from Madagascar.
Question 2
Use the reading to answer the question
Reading 1: Adapted from: Darwin’s Star Orchid by Joyce H. Newman, March 29, 2012
This flower is Darwin’s star orchid. The story goes that a biologist named Charles Darwin was sent a sample of this flower in 1862. He quickly noticed the flower’s long, narrow tube for storing nectar. Orchid flowers cannot spread pollen on their own, so he predicted that there must be an insect with a very long proboscis (a tongue-like part) that could reach the bottom of the tube to drink the nectar. When the insect used its long tongue to drink, the flower’s sticky pollen would attach to the insect’s tongue. Then, as the insect flew to another flower, it would bring the pollen with it.
But no one had ever seen an insect like this in Madagascar where the orchid came from. And many scientists thought Darwin was wrong about his prediction. Still, Darwin believed that the star orchid had developed its long nectar tube as an adaptation that would help it get pollinated. This helps the orchid reproduce, and it gives the insect a guaranteed food supply.
Sure enough, about forty years after Darwin’s prediction, an insect with the exact physical characteristics that Darwin had predicted was discovered. Called the Hawk Moth, its scientific name is Xanthopan morganii praedicta, which is Latin for ‘predicted moth’ in honor of Darwin.
The star orchid turned out to be a perfect example of coevolution, where two organisms—insect and flower—affect each other’s ability to grow and adapt.
Question 2
In this activity, you will see short pieces of text (called excerpts) taken from the reading about the star orchid and the Hawk Moth. Your job is to sort each excerpt into the correct category based on what it describes.
Categories:
Structure: Describes what the orchid or the Hawk Moth looks like or their physical features.
Function: Describes what the orchid or the Hawk Moth does or its job.
Working Together: Describes how the orchid and the Hawk Moth help each other or interact.
What to Do:
Read each excerpt carefully.
Drag the excerpt into the category that best fits what it describes: Structure, Function, or Working Together.
Take your time and think about what each excerpt is telling you! You can check your answer 3 times before turning it in.
(4 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Structure Function Orchid and insect working together
Question 3
Use the figure to answer the question.
Figure 1 - The Reproductive Cycle of a Flowering Plant
Question 3
Why is pollen important for plant reproduction?
(1 point)
Responses
A. It brings the sperm cells to the egg to make a seed.
A. It brings the sperm cells to the egg to make a seed.
B. It brings the egg to the sperm of another flower.
B. It brings the egg to the sperm of another flower.
C. It protects plants from being eaten.
C. It protects plants from being eaten.
D. It provides plants with nutrients.
D. It provides plants with nutrients.
Question 4
Use the figure to answer the question.
Figure 2 - Star Orchid and Hawk Moth
This figure shows the Star Orchid on its vine, a Hawk Math drinking from the Star Orchid, and the Hawk Moth with its long nose like that of an elephant.
Question 4
Based on Figure 2, select the two statements that best describe how the structure of the Star Orchid’s tube affects its ability to reproduce.
(2 points)
Responses
A. Only pollinators with long tongues can drink from the orchid’s tube.
A. Only pollinators with long tongues can drink from the orchid’s tube.
B. Orchid flowers can spread pollen on their own.
B. Orchid flowers can spread pollen on their own.
C. Pollinators with long tongues will pick up more pollen from the orchid’s tube.
C. Pollinators with long tongues will pick up more pollen from the orchid’s tube.
D. All pollinators will be able to drink from the orchid’s tube.
D. All pollinators will be able to drink from the orchid’s tube.
E. The long pollen tube allows wind to carry pollen to other flowers.
E. The long pollen tube allows wind to carry pollen to other flowers.
Question 5
Question 5
Based on Figure 2, select the two statements that best describe how the structure of the moth’s tongue affects the Star Orchid’s ability to reproduce.
(2 points)
Responses
The moth’s long tongue transfers new seeds to the orchid plant.
The moth’s long tongue transfers new seeds to the orchid plant.
The moth’s long tongue allows it to pick up more pollen from the orchid.
The moth’s long tongue allows it to pick up more pollen from the orchid.
The moth’s long tongue allows it to get food that other insects can’t access, which means the moth will keep coming back to the orchid.
The moth’s long tongue allows it to get food that other insects can’t access, which means the moth will keep coming back to the orchid.
The moth’s long tongue stretches the pollen tube of the orchid.
The moth’s long tongue stretches the pollen tube of the orchid.
The moth’s long tongue helps the moth attract mates.
The moth’s long tongue helps the moth attract mates.
Question 6
Question 6
Which of the flower parts shown below is where the moth’s tongue collects pollen and nectar?
(1 point)
Responses
A
A
B
B
C
C
D
D
Question 7
Use the excerpt to answer the question.
The Yucca Moth and Yucca Plan are similar to the Hawk Moth and Star Orchid.
Yucca plants grow in dry areas of the southwestern United States, including Utah. These plants have flowers with a shape that makes it hard for most insects to pollinate them. But the yucca moth is perfectly suited to help.
The female yucca moth gathers pollen from one yucca flower and carries it to another. Instead of just feeding on the flower, the moth places the pollen on the flower’s stigma. This helps the yucca plant get pollinated. After pollination, the moth lays her eggs inside the flower. When the eggs hatch, the baby moths (called larvae) eat some of the seeds growing in the flower.
Even though the larvae eat some seeds, there are still enough seeds left for the yucca plant to make new plants. The plant gives the moth a safe place to lay its eggs and food for the larvae. In return, the moth helps the plant by pollinating it.
Question 7
Match each adaptation or structure to the correct description of how it helps the yucca plant or yucca moth reproduce successfully.
(3 points)
— Ensures that the yucca moth pollinates the plant while laying her eggs.
— Makes it difficult for most insects to pollinate, helping the plant rely only on the yucca moth.
— Provides a safe place for moth larvae to grow and ensures pollination.
What was interesting to Darwin about the Star Orchid?
(1 point)
Responses
A. Its petals were white.
A. Its petals were white.
B. Its nectar tube was a foot long.
B. Its nectar tube was a foot long.
C. He saw a strange moth drinking its nectar.
C. He saw a strange moth drinking its nectar.
D. It was from Madagascar.
D. It was from Madagascar.
Question 2
Use the reading to answer the question
Reading 1: Adapted from: Darwin’s Star Orchid by Joyce H. Newman, March 29, 2012
This flower is Darwin’s star orchid. The story goes that a biologist named Charles Darwin was sent a sample of this flower in 1862. He quickly noticed the flower’s long, narrow tube for storing nectar. Orchid flowers cannot spread pollen on their own, so he predicted that there must be an insect with a very long proboscis (a tongue-like part) that could reach the bottom of the tube to drink the nectar. When the insect used its long tongue to drink, the flower’s sticky pollen would attach to the insect’s tongue. Then, as the insect flew to another flower, it would bring the pollen with it.
But no one had ever seen an insect like this in Madagascar where the orchid came from. And many scientists thought Darwin was wrong about his prediction. Still, Darwin believed that the star orchid had developed its long nectar tube as an adaptation that would help it get pollinated. This helps the orchid reproduce, and it gives the insect a guaranteed food supply.
Sure enough, about forty years after Darwin’s prediction, an insect with the exact physical characteristics that Darwin had predicted was discovered. Called the Hawk Moth, its scientific name is Xanthopan morganii praedicta, which is Latin for ‘predicted moth’ in honor of Darwin.
The star orchid turned out to be a perfect example of coevolution, where two organisms—insect and flower—affect each other’s ability to grow and adapt.
Question 2
In this activity, you will see short pieces of text (called excerpts) taken from the reading about the star orchid and the Hawk Moth. Your job is to sort each excerpt into the correct category based on what it describes.
Categories:
Structure: Describes what the orchid or the Hawk Moth looks like or their physical features.
Function: Describes what the orchid or the Hawk Moth does or its job.
Working Together: Describes how the orchid and the Hawk Moth help each other or interact.
What to Do:
Read each excerpt carefully.
Drag the excerpt into the category that best fits what it describes: Structure, Function, or Working Together.
Take your time and think about what each excerpt is telling you! You can check your answer 3 times before turning it in.
(4 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Structure Function Orchid and insect working together
Question 3
Use the figure to answer the question.
Figure 1 - The Reproductive Cycle of a Flowering Plant
Question 3
Why is pollen important for plant reproduction?
(1 point)
Responses
A. It brings the sperm cells to the egg to make a seed.
A. It brings the sperm cells to the egg to make a seed.
B. It brings the egg to the sperm of another flower.
B. It brings the egg to the sperm of another flower.
C. It protects plants from being eaten.
C. It protects plants from being eaten.
D. It provides plants with nutrients.
D. It provides plants with nutrients.
Question 4
Use the figure to answer the question.
Figure 2 - Star Orchid and Hawk Moth
This figure shows the Star Orchid on its vine, a Hawk Math drinking from the Star Orchid, and the Hawk Moth with its long nose like that of an elephant.
Question 4
Based on Figure 2, select the two statements that best describe how the structure of the Star Orchid’s tube affects its ability to reproduce.
(2 points)
Responses
A. Only pollinators with long tongues can drink from the orchid’s tube.
A. Only pollinators with long tongues can drink from the orchid’s tube.
B. Orchid flowers can spread pollen on their own.
B. Orchid flowers can spread pollen on their own.
C. Pollinators with long tongues will pick up more pollen from the orchid’s tube.
C. Pollinators with long tongues will pick up more pollen from the orchid’s tube.
D. All pollinators will be able to drink from the orchid’s tube.
D. All pollinators will be able to drink from the orchid’s tube.
E. The long pollen tube allows wind to carry pollen to other flowers.
E. The long pollen tube allows wind to carry pollen to other flowers.
Question 5
Question 5
Based on Figure 2, select the two statements that best describe how the structure of the moth’s tongue affects the Star Orchid’s ability to reproduce.
(2 points)
Responses
The moth’s long tongue transfers new seeds to the orchid plant.
The moth’s long tongue transfers new seeds to the orchid plant.
The moth’s long tongue allows it to pick up more pollen from the orchid.
The moth’s long tongue allows it to pick up more pollen from the orchid.
The moth’s long tongue allows it to get food that other insects can’t access, which means the moth will keep coming back to the orchid.
The moth’s long tongue allows it to get food that other insects can’t access, which means the moth will keep coming back to the orchid.
The moth’s long tongue stretches the pollen tube of the orchid.
The moth’s long tongue stretches the pollen tube of the orchid.
The moth’s long tongue helps the moth attract mates.
The moth’s long tongue helps the moth attract mates.
Question 6
Question 6
Which of the flower parts shown below is where the moth’s tongue collects pollen and nectar?
(1 point)
Responses
A
A
B
B
C
C
D
D
Question 7
Use the excerpt to answer the question.
The Yucca Moth and Yucca Plan are similar to the Hawk Moth and Star Orchid.
Yucca plants grow in dry areas of the southwestern United States, including Utah. These plants have flowers with a shape that makes it hard for most insects to pollinate them. But the yucca moth is perfectly suited to help.
The female yucca moth gathers pollen from one yucca flower and carries it to another. Instead of just feeding on the flower, the moth places the pollen on the flower’s stigma. This helps the yucca plant get pollinated. After pollination, the moth lays her eggs inside the flower. When the eggs hatch, the baby moths (called larvae) eat some of the seeds growing in the flower.
Even though the larvae eat some seeds, there are still enough seeds left for the yucca plant to make new plants. The plant gives the moth a safe place to lay its eggs and food for the larvae. In return, the moth helps the plant by pollinating it.
Question 7
Match each adaptation or structure to the correct description of how it helps the yucca plant or yucca moth reproduce successfully.
(3 points)
— Ensures that the yucca moth pollinates the plant while laying her eggs.
— Makes it difficult for most insects to pollinate, helping the plant rely only on the yucca moth.
— Provides a safe place for moth larvae to grow and ensures pollination.
Answers
GPT-4o mini
**Question 1 Response:**
B. Its nectar tube was a foot long.
---
**Question 2 Responses:**
- **Structure:**
- The orchid has a long, narrow tube for storing nectar.
- **Function:**
- The orchid has developed its long nectar tube as an adaptation to help it get pollinated.
- **Working Together:**
- The flower’s sticky pollen would attach to the insect's tongue, ensuring that the insect helps with pollination as it moves to another flower.
---
**Question 3 Response:**
A. It brings the sperm cells to the egg to make a seed.
---
**Question 4 Responses:**
A. Only pollinators with long tongues can drink from the orchid’s tube.
C. Pollinators with long tongues will pick up more pollen from the orchid’s tube.
---
**Question 5 Responses:**
The moth’s long tongue allows it to pick up more pollen from the orchid.
The moth’s long tongue allows it to get food that other insects can’t access, which means the moth will keep coming back to the orchid.
---
**Question 6 Response:**
B (based on common botanical illustrations, but please verify with the provided image).
---
**Question 7 Responses:**
1. — Ensures that the yucca moth pollinates the plant while laying her eggs. (This would refer to the behavior of the yucca moth as it gathers and transfers pollen.)
2. — Makes it difficult for most insects to pollinate, helping the plant rely only on the yucca moth. (Referring to the shape of the yucca flower.)
3. — Provides a safe place for moth larvae to grow and ensures pollination. (Referring to the relationship where the plant provides a safe egg-laying place for the moth.)
---
Be sure to check and adjust answers based on the specific details or figures presented in your materials if needed!
B. Its nectar tube was a foot long.
---
**Question 2 Responses:**
- **Structure:**
- The orchid has a long, narrow tube for storing nectar.
- **Function:**
- The orchid has developed its long nectar tube as an adaptation to help it get pollinated.
- **Working Together:**
- The flower’s sticky pollen would attach to the insect's tongue, ensuring that the insect helps with pollination as it moves to another flower.
---
**Question 3 Response:**
A. It brings the sperm cells to the egg to make a seed.
---
**Question 4 Responses:**
A. Only pollinators with long tongues can drink from the orchid’s tube.
C. Pollinators with long tongues will pick up more pollen from the orchid’s tube.
---
**Question 5 Responses:**
The moth’s long tongue allows it to pick up more pollen from the orchid.
The moth’s long tongue allows it to get food that other insects can’t access, which means the moth will keep coming back to the orchid.
---
**Question 6 Response:**
B (based on common botanical illustrations, but please verify with the provided image).
---
**Question 7 Responses:**
1. — Ensures that the yucca moth pollinates the plant while laying her eggs. (This would refer to the behavior of the yucca moth as it gathers and transfers pollen.)
2. — Makes it difficult for most insects to pollinate, helping the plant rely only on the yucca moth. (Referring to the shape of the yucca flower.)
3. — Provides a safe place for moth larvae to grow and ensures pollination. (Referring to the relationship where the plant provides a safe egg-laying place for the moth.)
---
Be sure to check and adjust answers based on the specific details or figures presented in your materials if needed!