Answer:
Homeostasis
Explanation:
Homeostasis means that there is an equilibrium in the cell. Moving materials either in or out helps to ensure that both inside and outside the cell are equal.
Moving substances into and out of cells helps maintain homeostasis, which is a state of steady internal conditions.
The process of moving substances into and out of cells helps maintain homeostasis. Homeostasis is a state of steady internal conditions maintained by organisms. Cells need to regulate what substances enter or leave them in order to keep their internal environment stable. This is instrumental for their proper function. For example, nutrients need to be absorbed while waste products need to be expelled.
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Answer:
begin with a single parent cell which eventually splits to form new daughter cells.
Explanation:
Answer: The correct answer is -
population of bacteria that has a high mutation rate.
Mutation can be described as permanent change in the genetic material of a living organism.
A population is said to be evolving if it changes over time due to change in the inheritable traits of the population.
With high mutation rate, there will be change in the frequency of gene variant (allele) and natural selection will act on the beneficial genes.
Due to this, over generations, bacterial population with high mutation rate will most likely to be evolving (that is change in the bacterial population will occur due to changes in the inheritable traits).
The 3 basic steps of DNA replication are: initiation, elongation and termination.
DNA replication is the process by which cells make copies of their genetic material. The process occurs in three main steps:
Initiation: This step involves the separation of the double helix structure of the DNA molecule, and the unwinding of the two strands at a specific point called the origin of replication.
Elongation: This step involves the building of new strands of DNA, which are complementary to the original strands. This is done by enzymes called DNA polymerases, which add nucleotides to the growing DNA chain. The new strands are created in the 5' to 3' direction, meaning that the polymerase adds nucleotides to the 3' end of the strand.
Termination: Once the entire length of the DNA molecule has been replicated, the replication process is complete. The two new DNA molecules, which are exact copies of the original, are then separated from each other.
Learn more about DNA replication, here:
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Answer:
3
Explanation:
i took the quiz
The right answer is; This is important for laboratory safety.
Before using any chemical in the lab, one should first read the Material Safety Data Sheet (MSDS) because it is important for laboratory safety.
A Material Safety Data Sheet (MSDS) is a technical document that contains detailed information about the protective measures to take, and the possible hazards of a chemical. The Material Safety Data Sheet (MSDS) is available for all the chemicals used in the laboratory and it may be written, printed or electronic.
In a phylogenetic tree, close relations are usually shown by nodes branching off from the same line. The most recent evolutionary split would be at the end of the tree. Appearance doesn't necessarily reflect genetic closeness due to environmental influences and the development of analogous structures.
Without the specific phylogenetic tree to refer to, I can only explain the basis for the potential correctness of the statements provided. Typically, when analyzing a phylogenetic tree, close relations are typically indicated by nodes that branch off from the same line in the tree. As for the 'most recent evolutionary split', it would be the one furthest to the 'right' or end of the tree, being most recent time-wise. The level of similarity between organisms does not necessarily reflect their distance on the phylogenetic tree. Environmental adaption could allow two distinct species to appear more similarly than they genetically are. This is the concept of analogous structures.
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Without the actual phylogenetic tree, it's challenging to provide a definitive answer to which statement is correct. The correct statement would be the one that represents the closest common ancestors between the species, as per the rules of phylogenetic analysis.
The question is about the analysis of a phylogenetic tree. Without the actual tree provided, it's challenging to provide a direct answer to which statement is correct. However, if we go by the rules of phylogenetic analysis, the correct statement would be the one that represents the nearest shared branches in the phylogenetic tree.
For instance, if the arctic fox and the fennec fox share a more recent common ancestor on the tree than the arctic fox and the kit fox, then the statement 'The arctic fox is more closely related to the fennec fox than to the kit fox' would be considered correct. The same logic applies to the other species mentioned in the other statements. Therefore, without the actual tree, we cannot definitively state which statement is correct.
Phylogenetics is a major part of evolutionary biology and it involves the study of the evolutionary relationship amongst various species. These relationships are discovered through phylogenetic inference methods that evaluate observed heritable traits, such as DNA sequences or morphology under a model of evolution.
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