Answer:
The flow of energy in ecosystems is unidirectional or one-way.
Explanation:
Energy is the ability to do work. Energy flows in one direction in an ecosystem and is not recycled. This is because during the transfer of energy from one level to another, energy is lost. Most of the energy received from the sun by producers, plants, is lost as heat to the surroundings. The rest energy is converted by plants to produce food in the form of chemical energy.
Primary consumers feed on plants and secondary consumers feed on the primary consumers and so on up to quaternary consumers. However, at each level of energy transfer, some energy is lost as heat during respiration, some as unused or undigested materials, while some others are used for each organisms metabolic activities. About 90% of energy in a trophic is used at that trophic level. Therefore, only about 10% as much energy is available to organisms at each successive trophic level. Therefore, energy is not recycled in ecosystems.
Earth's atmosphere maintains its temperature by means of the earth's energy balance. This refers to how incoming from the sun and outgoing energy from the earth are in balance, thereby keeping earth's temperature constant.
Decomposers, are organisms such as bacteria, fungi, and small animals such as ants and worms that eat and decompose dead and waste organic matter and which recycle nutrients back into food chains making them available for plants use. Therefore, decomposers are an essential components of all ecosystems.
Answer:
the Hawaii scientific drilling project drilled over 3000 meters into the Mauna loa volcano and when the lava is cooled it turns into a solid rock.
Explanation:
Answer:
For the Numbers on the leg Photo
1. Rectus Femoris
2. Vastus lateralis
3. Tibialis Anterior
4. ADDuctor longus
5. Gracilis
6. Satorius
7. Vastus Medialis
8. Gluteus Medius
9. Gluteus Maximus
10. Semitendinosis
11. Semimembranosus
12. Biceps Femoris
13. Gastrocnemius
Explanation: is correct
<span>microorganisms that are similar to bacteria in size and simplicity of structure but radically different in molecular organization. They are now believed to constitute an ancient intermediate group between the bacteria and eukaryotes.
</span>FULL ANSWER<span>Archaebacteria, or archaeans, are single-celled organisms. Although they were first classified with bacteria, they have since earned their own category. While they have a simple structure much like bacteria, there are many differences. They have a unique type of rRNA that sets them apart from their fellow prokaryotes. Furthermore, they do not cause sickness in people.Archaebacteria are considered extremophiles because they live in a variety of harsh environments and can tolerate extreme conditions such as, acidity and salinity. They are divided into three main groups: crenarchaeota, euryarchaeota and korarchaeota.Crenarchaeota consist of hyperthermophiles and thermoacidophiles that thrive in very hot, cold or acidic environments. Euryarchaeota consist of halophiels and methanogens that thrive in salty and oxygen-free environments. For example, euyarchaeota often live inside in the guts of animals. Compared to other the other groups of archaebacteria, less is known about korarchaeota. Scientists do konw that they are thermophilic and live in hot springs.</span>
Answer:
Good sources of protein in the diet include meat, poultry, fish, dairy products, eggs, legumes or pulses (beans, lentils and peas), and nuts. Many nutritionists recommend that we eat lean meats and low fat dairy if these foods are part of our diet. Our bodies can make some of the amino acids needed to make our body proteins, but we must obtain the others from our diet. The amino acids whic
Explanation:
