Phytoplankton

Phytoplankton are minute (extremely small) plants that float on the surface or in the sunlight zone. They live up here because they use the sun to get energy. This proces known as photosynthesis, uses sunlight along with carbon and water to produce starches and release energy and oxygen. Phytoplankton support life on Earth via this function. Phytoplankton reproduce asexually: the organism splits in half and produces a new copy of itself. Phytoplankton are consumed by a wide range of sea animals, notably by zooplankton, after they die and float downward.

Zooplankton

Meaning 'animal', the prefix zoo denotes a group of animal plankton. Likewise, they cannot swim themselves. These animals are detrivores and omnivores. They eat each other, phytoplankton, and decaying matter.

Plankton consists of any drifting organism, such as animals, plants or bacteria. They inhabit the pelagic zone of oceans, seas, or any other bodies of fresh water.

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These are microscopic organisms, similar to phytoplankton, who consume other plankton and digest waste. Some look like microscopic shrimp and others may look like tiny floating insects, depending on the type.
Plankton are microscopic organisms that live in water. They consist of small crustaceans,protozoans and diatoms.

Fertile soil enables the growth of oats - (producer)

Oats feed mice - (primary consumer)

Mice feed cats - (secondary consumer)

Cats die and support bacteria - (decomposer)

Bacteria return nutrients to the soil.

Ocean nutrients support phytoplankton - (producer)

Phytoplankton feed manta rays - (primary consumer)

Manta rays are eaten by sharks - (secondary consumer)

Dead sharks are consumed by bacteria - (decomposer)

Bacteria release nutrients into the ocean water.

2. Because God made the world and everything in it, and gave it to man to cultivate, care for and protect. (spiritual version)

3. Because there are still so many species we have not yet even found. Many of these still being discovered have and will yielded volumes of information about our world and cures for our ailments. The most resent discoveries have advanced our ability to fight cancer. (humanitarian version)

4. Because Biodiversity is declining and we need to understand why, how it is going to effect us all, if we are causing it or if we can afford to help maintain it, and if it benefits us to maintain it. (political version)

5. Because biodiversity is the origin of beauty in the world and to study it is to cultivate the heart.

*6* Biodiversity is key when an ecosystem experiences a disturbance. This can be a fire, flood, disease epidemic etc. A more diverse community that have different adaptive strategies will be more likely to survive and rebound.

According to "Howstuffworks.com":

Most experts agree that reading in low light does not damage your eyes. It can cause eye strain, however, which has a number of unpleasant temporary symptoms and possibly some long-term effects.

When the room light is low, your eye adjusts in several ways. First, the rod and cone cells on the retina begin to produce more light-sensitive chemicals. These light-sensitive chemicals are the first step in detecting the light, converting it to an electrical signal and transmitting that electrical signal to the brain. Second, the iris muscles relax, which causes the opening of your eye, the pupil, to become very large. This allows your eye to collect as much light as possible. Finally, the nerve cells in the retina adapt so that they can work in low light. These three changes take about 20 minutes to 2 hours, but they increase your sensitivity to low light by about 10,000 times.

When you read, your eye must be able to focus an image of the words onto your retina. To do this, the iris, as well as the muscles that control the shape of your lens, must contract to keep the focused image on the retina. If you read in low light, your visual muscles get mixed signals: Relax to collect the most light, but at the same time, contract to maintain the focused image. When that object is poorly lit, focusing becomes even more difficult because the contrast between the words and the page is not as great, which decreases the eye's ability to distinguish visual detail. That ability is called visual acuity. Your eyes have to work harder to separate the words from the page, which strains your eye muscles. Consider this to be strenuous exercise for your eye muscles. So your eye muscles will ache, much as your arm muscles and leg muscles become sore after strenuous exercise.

When your eyes are working this hard for a long period of time, the strain may cause a number of physical effects. Symptoms of eye strain include sore eyeballs, headaches, back and neck aches, drooping eyelids and blurred vision. Because you often don't blink enough when focusing on a single object, you may also experience uncomfortable dryness in your eyes. None of this damages your eyes, and all of it eventually goes away after you stop straining them. Many eye doctors leave it at that, but some note that eye strain may contribute to nearsightedness. Most people who are nearsighted were born that way, but there is evidence that prolonged eye strain can make it worse.

If you are comfortable reading with a flashlight (or other low light) and don't experience any of the above symptoms of eye strain, it's probably fine for you to read this way. It's certainly easier on your eyes to read in good light, however. You can also avoid eye strain when you're reading by blinking frequently and taking a moment to focus on something out the window or across the room every 15 to 30 minutes.