Plants Definition and 190 Threads

[SOLVED] biology question about plants This is from an online practice quiz: When you look at most plants you are observing the _________________ part of the life cycle. I've tried "adult", "vegatative". The textbook only lists stuff like "seed", "cone or flower", "fruit" for stages of a...

How much time does it take for a plant to start taking water up to it roots through the stem to its other braches once you have watered it?

How do plants grow towards the sun? Thanks.

I visited a coal power plant on the weekend, and was quite impressed by the scale and enormity of the operation. 10 storey high boilers suspended from the ceiling, Turbines and generators the size of two semi trailers, etc. (I highly recommend it if you can spare the time) Unfortunately our...

:frown::frown: Homework Statement Suggest reasons for each ofd the following observations: a.When transplanting a small plant from a pot to the garden, it is importanat to dig it up carrfully, leaving the roots in a ball of soil. If this is not done the plant may wilt after it has been...

http://www.nature.com/nature/journal/v439/n7073/abs/nature04420.html [PLAIN]http://www.nature-science.info/news/07042702.htm[/URL]

I heard that it's good to put metals like steel in the soil in which the plants grow in. Is that true? How does it help the plant? Does it act like a source of minerals?

Some time again, my neighbour told me that rain water is better for the plants than tap water. Is this true? Both tap and rain water come from open sourse such as rivers or paddocks. Tap water has been treated and cleaned. But I guess rain water is pure H20 since heavier elements could not...

Homework Statement Plants when exposed to frost can be badly damaged as the frost melts. Why? Explain how the damage can be minimised by spraying the plants with water. Homework Equations none The Attempt at a Solution It could be due to frost expand when in cells (i.e. from liquid...

I heard of several kinds of power plants, and then I came upon microwave power plants. I know what microwaves are, but how do they generate power? Would someone explain to me how or give me a link to somewhere?

I'm interested in anything you have...links...sugestions...ideas about this field...

I want to learn the GFD lead acid batteries used in NPP. Have Exide and Deka ever supplied for NPP, or who are the main suppliers in this field? We know VRLA betteried dominate the market now, but have this type ever been use in NPP? As for UPS, do bettery suppliers provide UPS together...

This is a segment on mythbusters. They did a polygraph test to see if a plant can feel and there results were suprsing but I'm not sure about this [PLAIN][/URL] How can a plant feel? How can a polygraph detcet if a plant can feel

http://www.eurekalert.org/pub_releases/2006-08/osu-sro082106.php

What happens to the sugars in a plant when the plant decays?

I've always thought that a small nuclear reactor installation that would power an average size county (as opposed to a large city county) would be more efficient that the large installations such as Three Mile Island. Less expensive to construct and operate. Anyone care to comment on...

Hello, According to the evolution theory: Does plants, all plants, have a common ancestor? As Well: Do they have some common ancestors with animals? [i mean beside the single-cell first creature may be ..etc] Please excuse my english amd modest knowledge about the topic. -Spirit

Is it the case that every country in the world--including places like North Korea, Iran and Syria--ought to have the right to build nuclear power plants? (That is, the question is not whether such countries currently have a legal right under international law.) A. Yes B. No

Of the more than 7,500 desalination plants in operation worldwide, 60% are located in the Middle East. The world's largest plant in Saudi Arabia produces 128 MGD of desalted water. In contrast, 12% of the world's capacity is produced in the Americas, with most of the plants located in the...

Nuclear Power Plants and the Sun I need some help again...:frown: 1. What are the fuel sources? 2. How is the fuel used to produce/release energy? 3. What are the similarities in the way they produce energy? 4. Are there any health hazards associated with the way they produce...

Can plants get cancer? I don't see any reason for plants not to get cancer, but i have never heard of a speciies of plant really 'dying' from a cancer of any kind. Any answers ppl?

NOT homework, just curious :redface: (*Let's say we have some healthy albeit imaginary black plants :smile:) :eek: Would "black plants" pose a strict threat to the population of our currently flora (which happens to be green) ? By "black plants" => photosynthetically-superior to green...

Ive known about this story for awhile, but is there any truth to it?

Experiment to show how algal growth effects plants

I just read some stuff on pyromagnetic generators, and my first thought was why don't they use the pyromagnetic generators in nuclear power plants and in any power plants that use thermal energy? You would skip conversion from thermal to mechanic, and then from mechanic to electric. I'm sure...

An idea I had some weeks ago is genetically engineered plants that synthesize petroleum oil from hydrogen and carbon. If the need for such a thing was upon us in the next few years, how hard would it be to create oil-gourds, bamboo, algae etc.? Also to what level could huge fields of such plants...

okay so the plant has two life cycles: the diploid stage - sporophyte the haploid stage - gametophyte but is the archegonium and antheridium diploid or haploid? and is the protnema diploid or haploid? thanks

One of the waste products of many nuclear power plants is heat. They send it towers in the form of steam and some have dumped heat into nearby rivers. The basic problem is that when you use steam heated by a nuclear reactor to power a turbine, the steam says fairly hot while no longer being...

So, I have basically four questions 1) What is the efficiency of converting the heat energy generated by a power plant due to combustion/fusion to electric energy? 2) What are the major ways in which energy is lost while converting it? 3) Is there any way to improve the efficiency...

http://www.cnn.com/2005/TECH/science/03/23/genetics.discovery.ap/index.html

There are a whole bunch of plants on this planet which produce an array of chemicals. I'm sure there are chemicals in the plants which had developped as a result of natural selection; some of them are used to help the plant survive certain conditions/predators. But I'm sure there are a lot of...

I have a lab practical coming up and they use models a lot on these exams. I printed out pictures of the models with their respective keys but it's impossible tosee the numbers on a model by a picture. I was just wondering if anyone could recommend websites that have models to learn the parts of...

Is there any reason not to build nuclear power plants underground? All of the ones I know of (http://pravda.ru/main/2002/02/05/36613.html) are all above ground - if there’s a problem like meltdown, it gets scattered all around. My thinking is that if we build these things underground this...

Hey guys; I have a question, how is it that plants are able to "move" towards light? How do they bend towards it, etc?

ie. plants that get you high. Why is it they evolved? What is the purpose of these plants that induce such states? Or is it just something "that happened"? I read that Terance McKenna (strong supporter of psychedelic drug use, philosopher, etc.) believed that mushrooms in specific is what...

In my bio class, we're learning about genetics currently and watched a video demonstrating mendel's experiments with pea plants. Something in the video didn't seem right to me, and my biology teacher is horrible and couldn't understand my question. In the part of the video in question, it...

i have avery simple question that has been bothering me since my childhood. why are plants green? an object is green because it absorbs all colors except green or combinations of colors forming green... what is in the green color that plants do not absorb? why are plants not black so that it can...

My Dad bought a lot of plants so now our house is like full of them. But yesterday he was wondering if he made a mistake. Since plants use the oxygen in our house at night (since there is no light), my Dad's afraid that the plants will use up all the oxygen in our house and that we will...

The new Generation-IV nuclear power plants under consideration by the DOE will encase their fuel in graphite, rather than zerconium, for safety, and that seems a great advantage. But the DOE has also demanded that this generation of power plant must produce Hydrogen for fuel cells as a...

Why do nuclear power plants raise the temperature of sea water? I can't find the answer to this anywhere on the internet.