Chlorine-the chemical element of atomic number 17, a toxic, irritant, pale green gas
atomic number-the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
Answer:
Myosin
Explanation:
Two of the important proteins are myosin, which forms the thick filament, and actin, which forms the thin filament. Myosin has a long, fibrous tail and a globular head, which binds to actin. The myosin head also binds to ATP, which is the source of energy for muscle movement
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.
Human red blood cells are formed mainly in the bone marrow and are believed to have an average life span of approximately 120 days<span>.</span>
Answer:
The answer is B.
Explanation:
Prokaryotes are organisms which are unicellular and have no internal membrane-bound organelles nor a nucleus. Instead they tend to have a single chromosome, which is a piece of circular, double-stranded DNA found in the nucleoid of the cell. Whereas eukaryotes are organisms with eukaryotic cells. These are cells that have a nucleus and organelles bounded in a plasma membrane. Examples of these organisms include humans, protozoa, fungi, plants and other animals.
