To enlist:
The steps that can be used to preserve the natural
Concept introduction:
Before the rise of synthetic drugs, more than 80% of all the medicine was of plant origin. Even at some places plant products are used to treat virtually any ailment in china herbal medicines are widely used because these medicines do not have any side effects. But nowadays the forests from which these medicines are extracted are being converted into agriculture land. So we are in danger of losing many of these potential drugs before they can be evaluated by modern medicine.
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Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
- Some genetically modified plant varieties incorporate a “self-destruct gene”, which causes anyseed produced by the plants to be unable to germinate.a) What are some ecological advantages to these “self-destruct genes”? Explain youranswer.b) Identify another reason why the enterprises that developed these varieties might haveincorporated such genesarrow_forwardIn the U.S. the adoption of herbicide tolerant (HT) soybeans represented 87% of total U.S. soybean acreage in 2006. (i) What does it mean by herbicide tolerance? What is the advantage of having a herbicide tolerance plant?arrow_forwardGenetically modified plants can be produced by transferring desired:  Cytoplasm  Carbohydrates  Genes  Proteinsarrow_forward
- In North Carolina and other soybean-producing states, many farmers grow a species of soybean known as Roundup Ready. Roundup is a weed-killing chemical that was produced by Monsanto, (recently purchased by Bayer). The farmer can directly spray Round-up on his fields and it will kill all the weeds, yet leave the soybean plants unharmed. One particular farmer noticed that after a few years of using Roundup weed killer, it became less effective, leaving more andynore weeds alive after spraying. Which of the following explanations, best describes why these weeds remained alive? After years of exposure to Roundup, the soybeans became more resistant to the weed killer. Roundup-resistant weeds were more likely to survive and reproduce than were non-resistant individuals. When Bayer bought out Monsanto, they started selling poor-quality Roundup. Roundup-resistant weeds have less-efficient photosynthetic pathways than the original form.arrow_forwardThroughout history, spices have been used as preservatives and to cover up the smell or taste of food that is slightly spoiled. The success of some spices led to a magical, ritualized use, and possession of spices was often limited to priests or other powerful members of the community. a. Choose a spice and trace its use geographically and historically. What is its common use today? b. Spices grow and tend to be used predominantly in warmer climates. Explainarrow_forwardIn this field of sunflowers, variation exists. Some flowers are tall, others short, and finally some plants are an intermediate height. The tallest plants shade the shorter; the taller plants are pollinated first. Over time, we might expect this field of sunflowers to be mostly tall. According to this scenario, we would classify the production of the sunflowers in what area of this Venn diagram?  A) A. Reactivate  B) B. Reactivate  C) C.   D) D. Reactivatearrow_forward
- As scientists have developed more productive crop varieties, farmers have switched from growing many traditional varieties to new high-yield varieties. For example, in India, the 10,000 varieties of rice once grown have been reduced to 10 major ones for most of the rice crop. Why is this practice of reducing the varieties of a crop dangerous? Question options:  It makes the overall crop more susceptible to pests and/or disease.  It reduces the variety of crops available for human diets.  it requires a larger investment than small farmers can make  it could reduce or cause the extinction of some predatory insectsarrow_forwardOne island in the Pacific is most famous with its sweetest and juicy mango. The local government of the island issued a legislation that prohibits anyone, local or foreigner, to bring a mango fruit or plant from other places to the island. a. What do you think is the reason of the local government for not allowing anyone to bring a mango fruit or plant from other places to the island? b. With the increasing effect of climate change, do you think the decision of the local government is appropriate or not? Explain your answerarrow_forwardA nine-year research and experimentations have successfully developed rice plants with golden hue kernels instead of the usual white kernels. What is the advantage of this modified rice plant? Select one: To make the plant become resistant to herbivores. To provide sufficient rice produce due to its shorter cycle. To add nutritional value to the rice kernels. To allow easy harvesting and processing.arrow_forward
- Imagine a rocky slope in the Santa Ynez Mountains behind Santa Barbara that is covered purple sage (Salvia leucophylla) and white sage (Salvia apiana). Competition among plants is intense, and research has shown that individual plants compete for space via allelopathy. Imagine that some of the plants (the "mutants") experience a genetic mutation that renders the essential oils in their leaves much less volatile or much less abundant than the essential oils in the plants around them. The most likely outcome for these mutant plants is:arrow_forwardPrepare a summary of this article without distorting the message it wanted to convey For farmers, pesticides save labor and generally provide a higher yield: they can mean the difference between saving a crop and losing it to disease. Some farmers, especially those who grow produce at a smaller scale, use pesticides sparingly. For example, fruit trees are susceptible to disease in northeastern regions, especially at the blossom stage. An apple or peach grower may spray their fruit trees with a fungicide once in the spring to ensure that the fruit sets, but use no further chemicals for the rest of the season. For many large row crop farmers, on the other hand, regular pesticide use is as much a part of farming as planting seeds. Spraying Roundup on a field of corn genetically engineered to withstand the chemical kills! the weeds without affecting the corn. In comparison to mechanically weeding hundreds or thousands of acres, using pesticides is a game-changer. Some farmers spray their…arrow_forwardA secondary plant compound might be used for which of the following? a. a new crop variety b. a new drug c. a soil nutrient d. a crop pestarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College