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- What are two types of vascular tissue?
-
1.phlome
2.xylem - All seed plants share two characteristics. What are they?
- They have vascular tissue and use seeds to reproduce
- A seed has three important parts. What are they?
- an embryo, stored food, and a seed coat
- Leaves capture the sun’s energy and carry out the food-making process of what?
- photosynthesis
- What are the stems two important functions?
-
The stem carries substances between the plant’s roots and leaves.
The stem also provides support for the plant and holds up the leaves so they are exposed to the sun - What is the roots main function?
- Roots anchor a plant in the ground and absorb water and nutrients from the soil
- Every gymnosperm produces naked seeds. What can we infer after manking this observation?
- many gymnosperms also have needlelike or scalelike leaves, plus a deep-growing root systems
- What are the four types of gymnosperms?
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1.Conifers
2.Ginkgo
3.Gnetophytes
4.Cycads - How do gymnosperms reproduce?
- First, pollen falls from a male cone onto a female cone. In time, a sperm cell and an egg cell join together in an ovule on the female cone
- What are two characteristics of angiosperms?
- they produce flowers and fruits
- How do angiospems reproduce?
- First, pollen falls on a stigma. In time, the sperm cell and egg cell join together in the flower’s ovule. The zygote develops into the embryo part of the seed.
- What are three important stimuli to which plants respond?
- Touch, light, and gravity
- What controles germination?
- plant hormones also control germination, the formation of flowers, stems, and leaves, the shedding of leaves, and the development and ripening of fruit.