Population, community, ecosystem, biome is the order of the individual numbers.
A population is defined as the group of same species in a particular area that live together and depend on same kind of food with same reproductive habits.
The community is defined as the collection of all the living organisms in a particular region. All the different species residing in a particular habitat is considered as the community.
The ecosystem consists of the both living and the non living objectsorganisms in a particular region. All the living organisms as well as the soil, rock, wind etc forms the ecosystem of a region.
The biome is defined as the large geographical region where the different organisms reside and it also gives an idea about the geographical features of the region.
4. Abiotic factor b. A group of ecosystems that share the same type of climate
5. Biome c. All of the living organisms in an environment
Answer:
Organism, population, biological community, ecosystem, biome, and biosphereThe atmosphere is the part of the biosphere that describes the gasses on earth. The hydrosphere is the part of the biosphere that accounts for all of the water on the entirety of the surface of earth. The lithosphere is the part of the biosphere that captures all of the land masses on the earth’s crust and in the oceans.
C
A
b
Explanation:
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3. C
4. A
5. B
Explanation:
b.) To carry the code from the DNA molecule in the nucleus to the ribosome
c.) Delivers specific amino acids to the ribosome to make proteins
d.) Transfers nucleic acids to the nucleus
Answer:
The answer is a)
Explanation:
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the purpose of valves in the heart valves is to allow blood to flow only in one direction. Valves open and close on differential pressure on each side. pulmonary and the aortic valves receive blood from the ventricles and their semilunar valves allow blood to go into the arteries and prevent back flow from the artery to the ventricles.
Answer:
All of the above are true.
Explanation:
Microbial cells are surrounded by the plasma membrane or cytoplasmic membrane. It serves as a selective barrier allowing materials in and out of the cell e.g. allowing nutrients in and waste out.
Microbial cells grow independently, in that they are unicellular, and so do not depend on the other cells to carry out the process. However, they rely on nutrients, and in some environments, these may be nutrients produced by other organisms.
Microbial cells are unicellular, although some microorganisms are multi-cellular. Microorganisms such as bacteria are unicellular, that is, exist as single cells.
Bacteria and viruses are microorganisms.
Answer:
Plants and animals assimilate carbon-14 from carbon dioxide throughout their life. When they die, they stop exchanging carbon with the biosphere and their carbon-14 content begins to decrease at a rate determined by the law of radioactive decay.
Radiocarbon dating is basically a method designed to measure residual radioactivity.
Explanation:
Carbon-14 is a weakly radioactive carbon isotope; It is also known as radiocarbon, and is an isotopic stopwatch.
Radiocarbon dating is only applicable to organic materials and some inorganic materials (not applicable to metals).
Proportional gas counting, liquid scintillation counting, and accelerator mass spectrometry are the three main methods of radiocarbon dating.
The radiocarbon, or carbon-14, is an isotope of the carbon element that is unstable and weakly radioactive. The stable isotopes are carbon-12 and carbon-13.
Carbon 14 is continuously formed in the upper atmosphere by the effect of cosmic ray neutrons on nitrogen-14 atoms, rapidly oxidizing in the air to form carbon dioxide and entering the global carbon cycle.
Accelerator mass spectrometry (AMS) is a modern method of radiocarbon dating that is considered the most efficient way to measure the radiocarbon content of a sample. In this method, the content of carbon-14 is measured directly in relation to carbon-12 and carbon-13 present. The method does not take into account beta particles, but the number of carbon atoms present in the sample and the proportion of the isotopes.