Background: Scientists think that the earliest flowers attracted insects and other animals, which spread pollen from flower to flower. This greatly increased the efficiency of fertilization over wind-spread pollen, which might or might not actually land on another flower. To take better advantage of this “animal labor,” plants evolved traits such as brightly colored petals to attract pollinators. In exchange for pollination, flowers gave the pollinators nectar.

Situation: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient.

Question: Which group of plants attracts more insects?
Answer: Group F

Situation: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient.

Question: Which group of plants attracts fewer insects?
Answer: group W

Situation: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient.

Question: Which group of plants attracts fewer animals?
Answer: group W

Situation: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient.

Question: Which group of plants attracts more animals?
Answer: Group F

Situation: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient.

Question: Which group of plants has a lower fertilization efficiency?
Answer: group W

Situation: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient.

Question: Which group of plants has a higher fertilization efficiency?
Answer: Group F

Situation: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient.

Question: Which group of plants has more brightly colored petals?
Answer: Group F

Situation: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient.

Question: Which group of plants has fewer brightly colored petals?
Answer: group W

Situation: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient.

Question: Which group of plants gave pollinators nectar?
Answer: Group F

Situation: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient.

Question: Which group of plants didn't give the pollinators nectar?
Answer: group W

Situation: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen.

Question: Which friend had a field that attracted more insects?
Answer: Joy

Situation: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen.

Question: Which friend had a field that attracted fewer insects?
Answer: Jill

Situation: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen.

Question: Which friend had a field that attracted fewer animals?
Answer: Jill

Situation: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen.

Question: Which friend had a field that attracted more animals?
Answer: Joy

Situation: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen.

Question: Which friend had a field with a higher efficiency of fertilization?
Answer: Joy

Situation: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen.

Question: Which friend had a field with a lower efficiency of fertilization?
Answer: Jill

Situation: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen.

Question: Which friend had a field with brighter flowers to attract fertilization?
Answer: Joy

Situation: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen.

Question: Which friend didn't have a field with brighter flowers to attract fertilization?
Answer: Jill

Situation: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen.

Question: Which friend didn't have a field with nectar producing flowers?
Answer: Jill

Situation: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen.

Question: Which friend had a field with nectar producing flowers?
Answer: Joy