Answer:
D.DNA-mRNA-Amino Acid-Protein-Trait
Explanation:
The relationship between DNA and the trait of an organism involves a process called GENE EXPRESSION. DNA is a molecule that contains information needed for the survival of an organism. However, this information must be expressed in order to be used.
The process of gene expression involves two major processes namely: transcription and translation. Transcription involves the synthesis of mRNA from DNA template while translation involves the synthesis of amino acid sequence from mRNA. The amino acid sequence encodes PROTEIN, which determines the TRAIT of an organism.
Based on this explanation, the correct sequence that best represents the relationship between DNA and the traits of an organism is: DNA-mRNA-Amino Acid-Protein-Trait
Answer:
The simultaneous effect of a predator population on a prey population and a prey population on a predator population over time.
Explanation:
The mathematical models of Lotka-Volterra equations explain the existing interaction between species in which prey and predator influence and affect each other. The model follows a few assumptions,
- The ecosystem is isolated and closed. There is no migration.
- The whole individuals are reproductively equivalent.
- In the absence of the predator, prey shows an exponential growth rate. The prey is in the ideal environment.
- When there is no prey, the predator population decreases exponentially because of the lack of food. The predator environment is ideal, but it is limited by prey density.
- The predation rate is proportional to the encounters rate, which also depends on density.
- The predators affect the prey populations, inducing its decrease proportionally to the number of prey and predators present.
- The prey population also influences the predator population proportionally to the number of encounters between the two species.
In these equations, the variable D is the number of predators, and P the number of prey items.
The parameters are always constant:
• r1: prey growth rate.
• a1: predator hunting success.
• r2: predator growth rate.
• a2: the success of the predator in hunting and feeding.
In nature, many factors affect interactions, such as dense-dependent factors and dense-independent factors. Also, in reality, there are stochastic factors. Stochasticity refers to the variability in the system involving those factors that are affecting or influencing population growth. Stochasticity might be related to good years and bad years for population growth.
In real situations, the compliance of the whole assumption does not occur. The previously mentioned constants might vary, constantly changing the interaction between the predator and the prey. These parameters change in different degrees, resulting in varying circumstances for both species.
Answer:Ecosystem Energy
Nearly all of the energy that drives ecosystems ultimately comes from the sun. Solar energy, which is an abiotic factor, by the way, enters the ecosystem through the process of photosynthesis
The energy input, or energy that enters the ecosystem, is measured in Joules or calories. Accordingly, the energy flow is also called calorific flow.
Answer: In translation process, the messenger RNA (mRNA) template is used to create amino acid chain by which a protein is formed. Translation is the process of synthesis of proteins from amino acids which the help of mRNA
Answer:
The correct answer is option B.
Explanation:
Strict consensus algorithm is the most restrictive approach that includes only that components that are shared by all the members of the group. In the strict consensus tree only those trees would be considered shared clades by all the trees.
The clades must be exact same or replicated in all the trees in this type of algorithm to analysis of the phylogenetic group. A 100% threshold in support leads to the Strict consensus trees algorithm.
Thus, the correct answer is : option B.
