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What is an organism that grows with or without oxygen?
A facultative anaerobe is an organism that can grow in the presence or absence of oxygen. These organisms have metabolic flexibility and can switch between aerobic and anaerobic pathways depending on the environmental conditions. Examples include E. coli and Staphylococcus aureus.
What is the relationship between organisms where one organism benefits and the other is not affected?
This relationship is called commensalism. In commensalism, one organism benefits while the other is neither harmed nor helped. An example of commensalism is barnacles attaching themselves to whales to gain a stable substrate for attachment while the whales are not affected by their presence.
An organism that will die in the presence of oxygen is called a?
An obligate anaerobe.
How microbes are classified based on their oxygen preferences?
On the basis of oxygen requirement microorganisms are classified asAerobes: organisms that use molecular oxygen as electron acceptor.Anaerobes: organisms that use some molecule other than molecular oxygen as electron acceptor.Facultative organisms : organisms that can use either molecular oxygen or some other chemical compound as electron acceptor.
How the environment affects the behavior of organisms?
organisms help theenvironment and the environment helps organisms
Are mammals aerobic organisms?
Yes. An aerobic organism is an organism that can grow and survive in the presence of oxygen. Mammals need oxygen to have cellular respiration, so they are obligate aerobes.
What is biomagnetism in animals?
Biomagnetism is defined as the interaction of living organisms with magnetic fields. It can also be defined as the ability of a living organism to attract other living organisms with its presence.
What does the presence of similar DNA sequence in the genes in very dissimilar organisms imply?
It implies that the organism shares a common ancestor.
What is living only in the presence of oxygen?
An obligate aerobe is an organism that requires oxygen to grow and survive. These organisms rely on aerobic respiration to produce energy.
What does the presence of similar DNA sequences in the genes in very dissimilar organisms imply?
The presence of similar DNA sequences in genes of very dissimilar organisms implies a common ancestry or evolutionary relationship. These similarities suggest that these organisms share a common ancestor and have inherited these sequences through evolution.
Signal to which an organism responds?
stimulus
What is used as a indicator organism?
Indicator organisms are typically used in water quality testing to reflect the presence of harmful pathogens. Examples of indicator organisms include E. coli and fecal coliform bacteria, as their presence in water indicates possible contamination with sewage or fecal matter, which may contain harmful pathogens. These organisms are easier and quicker to test for compared to all potential pathogens, and their presence can be used as a warning sign of possible contamination.
What is a aerobic heterotroph?
An aerobic heterotroph is an organism that obtains energy by breaking down organic compounds in the presence of oxygen. These organisms rely on consuming organic molecules from their environment to sustain themselves and carry out cellular respiration to produce ATP for energy. Examples include most animals, fungi, and some bacteria.
What is an organism that grows with or without oxygen?
A facultative anaerobe is an organism that can grow in the presence or absence of oxygen. These organisms have metabolic flexibility and can switch between aerobic and anaerobic pathways depending on the environmental conditions. Examples include E. coli and Staphylococcus aureus.
What does the presence of mitochondria in each cell suggest about multicellular organisms?
It is believed that mitochondria, which have their own independent genetics, became part of cells originally as a symbiotic organism. The fact that they are found in all cells of multi-cellular organisms is a tribute to the usefulness of mitochondria. It may well be that multi-cellular organisms would be impossible without them.
Can an aerobic organsm be oxidase negative?
Yes, some aerobic organisms can be oxidase negative. Oxidase positivity is not always directly related to aerobicity, as it depends on the presence of cytochrome c oxidase in the organism. Some aerobic bacteria lack this enzyme and are therefore oxidase negative.
How can a mycoplasma be recognized?
Mycoplasma organisms do not contain a cell wall. Thus, traditional cell staining techniques (which require the presence of a cell wall), do not highlight the organism. A special staining technique is required for visualization.
