1. An example of secondary consumer is snake. Secondary consumers are the ones who eat the primary consumers, which makes them carnivore.
2. Photosynthesis is a process used by plants and (some other organisms) that converts water (H2O) and carbon dioxide (CO2) with the presence of sun energy (collected in the chloroplasts) into chemical energy that is later stored in sugars (carbohydrates). Organisms that do the photosynthesis are called autotrophs (produce food by themselves).
3. The energy pyramid represents energy flow in a community, where the different levels represent different groups of organisms.
The food chain is a circulation of energy that comes from the sun and passes from the producer organisms to the primary consumer, secondary and tertiary consumer organisms.
4. For example, plant is producer that is eaten by primary consumer-herbivore (e.g. bugs). Than secondary consumer-carnivore (e.g. snake) eat that herbivore and than is being eaten by tertiary consumer (apex predator that have no natural predator).
5. One trophic level gets only 10% of the energy of the previous level. So, if the plant have 10.000 units of energy and is eaten by rabbit, rabbit gets 1000 units of energy, and when the fox eats an rabbit, it gets 100 units of energy.
6. Trophic level is the position of an organism in the food chain.
Amino Acids. A polypeptide IS a protein.
I think it's D) atmospheric carbon dioxide.
<span>Homologous chromosomes have to attach together to the same spindle fiber during prophase 1. Then, some of them may go through crossing over, which switches fragments of them. Then, each pair of homologous will migrate to equatorial plane during metaphase 1. So, in the metaphase plate you will have pairs of homologous, both of them duplicated, but the 4 chromatides may be different due to crossing over (it depends on where the enzymes have cut and pasted in that process).</span>
The type of selection which is likely to occur on the following phenotypes:
Stabilizing selection: grey fur
Diversifying selection: dark fur on island and light on another island. Dark fur in forests and light in fields
Directional selection: dark and light fur
When individual people with such character traits generate more surviving offspring than individual people with other characteristics, this is referred to as phenotypic selection. Although selection is widely regarded as the primary driver of evolutionary change, scientists have only lately started to quantify its effects in the wild.
Because phenotype influences differential reproduction and survivorship, selection acts on phenotypes. If the phenotype influencing reproduction or survival rates is genetically determined, selection can indirectly winnow out genotypes by winnowing out phenotypes.
For more information on phenotypic selection, visit :
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