Primary succession is much slower than secondary succession because it begins where there is no soil. It can take several hundred to several thousand years to produce fertile soil naturally. The first pioneer species to colonize the bare rock will probably be bacteria and lichens, which can live without the soil.
<span>The question is asking us Which organism is an example of a producer? A producer in an ecosystem is an organism that does not eat other organisms (such as moth and cheetah - they eat other plants or animals) but instead, one that produces its own food from the solar energy in the process of photosynthesis - so the correct answer is the only plant, rose</span>
<span>According to the Centers for Disease Control and Prevention (CDC), diseases caused by smoking kill more than 480,000 people in the U.S. each year. In fact, smoking is directly responsible for almost 90% of lung cancer and COPD deaths. Even with antismoking campaigns and health warnings, many people continue to smoke or start to smoke every year. About 8% of kids under the age of 18 years are current tobacco users.</span>
Answer:
In anatomy, the notochord is a flexible rod formed of a material similar to cartilage. If a species has a notochord at any stage of its life cycle, it is, by definition, a chordate. The notochord lies along the anteroposterior ("front to back") axis, is usually closer to the dorsal than the ventral surface of the animal, and is composed of cells derived from the mesoderm.
Answer:
forced expiration
Explanation:
The speed at which air is expelled from the lungs during the middle portion of a forced expiration is very important to the actions of the internal intercostals.
