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Karolina [17]
3 years ago
10

An environmental scientist might study the effect of soil pollution on plant growth.

Biology
1 answer:
Elena L [17]3 years ago
6 0
  • <u><em>True.</em></u>

As...Environmental scientist studies the interaction of the living components of the ecosystem with the non living components.

The contamination in the soil will affect the growth of plants, this will also be studied by the environmental scientist.

The Growth of the plant depend on the quality of soil in which it is grown so it will also be a concern for the environmental scientist.

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You have learned that the fusion of egg and sperm produces a zygote. But how does the sperm reach the egg, and how does the zygo
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Explanation:

A) Pollen grain lands on stigma

  • pollen tube grows down the style
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B)

  1. During pollination, a pollen grain is transferred from an anther to a stigma. Once the pollen grain lands on a suitable stigma, it germinates and forms a pollen tube, a structure that grows down through the style to the ovary.
  2. Once in the pollen tube, the generative cell from the pollen grain divides by mitosis, forming two sperm. The sperm travel down the pollen tube and are discharged into the female gametophyte. In a process called double fertilization, one sperm fertilizes the egg, forming the zygote; the other sperm fuses with two polar nuclei in the female gametophyte, forming a triploid (3n) nucleus. The zygote develops into the plant embryo, and the triploid nucleus divides and gives rise to the endosperm. Double fertilization prevents the waste of the plant's resources by ensuring that the nutrient-rich endosperm only develops if the egg is fertilized.
  3. After double fertilization, the ovule starts to develop into a seed containing the plant embryo. As the embryo develops, the three tissue systems are established, and the cotyledons (seed leaves) form. The seeds of many species dry out as they mature. These dry seeds lie dormant until suitable germination conditions occur.

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The microscope best for viewing living cells at low levels of magnification is the
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Answer:

the answer is true I hope it helps

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