The energy released from glucose during this reaction is used and also wasted. Some of the energy is used as work while some amounts are used in other processes or stored for transfer to other organisms. Also, some of the energy is wasted in the form of heat.
<span>Like the sporophytes of seed plants, those of ferns consist of stems, leaves androots. Stems: Fern stems are often referred to as "rhizomes", even though they grow underground only in some of the species.</span>
Asteroid<span>: a large rocky body in space, in orbit around the Sun. </span>Meteoroid<span>: much smaller rocks or particles in orbit around the Sun. Meteor: If a </span>meteoroid<span> enters the Earth's atmosphere and vaporizes, it becomes a meteor, which is often called a shooting star.</span>
The correct answer is: B) species selection.
Species selection is defined as an evolutionary process in which selection acts on an entire species population (not individuals). It can occur as a consequence of the geographical range of a population, which affects the whole population.
Answer:
Answer 1: <em>Producers</em> represent the most biomass in an ecosystem.
Answer 2: <em>Human and animal respiration, decomposition and volcanic eruptions</em> are natural sources of carbon emissions.
Explanation:
Answer 1: <em>Producers</em> represent the most biomass in an ecosystem.
Producers refer to plants, trees, shrubs, etc., that make up the first trophic level of an ecosystem. Producers are vital to ecosystems as they produce food for themselves as well as primary consumers. Producers represent the most biomass in an ecosystem as they are the first trophic level in an ecosystem. As we go up trophic levels in an ecosystem, only 10% of energy as biomass is passed on to the next trophic level. Thus, producers represent the most biomass in an ecosystem.
Answer 2: <em>Human and animal respiration, decomposition and volcanic eruptions</em><em> </em>are natural sources of carbon emissions.
Respiration is a natural source of carbon emissions as, when humans and animals exhale, they release carbon dioxide and water vapor in the atmosphere. Similarly, when plants and animals die and decompose (decay), carbon dioxide is released in the atmosphere as part of the decomposition process. Thirdly, volcanic eruptions are also a significant form of carbon emissions as annually, 200 million tonnes of carbon dioxide is released from the earth's interior when volcanoes erupt. In this way, human and animal respiration, decomposition and volcanic eruptions are natural sources of carbon emissions.
