Eliminate
B) Differentiated cells have fewer gene sequences that pluripotent cells and can only produce limited numbers of proteins.
C) Pluripotent cells recruit molecules from nearby cells to increase gene expression while differentiated cells use only internal transcription factors.
D) Differentiated cells and pluripotent cells have different types of activator or repressor proteins present that positively and negatively regulate gene expression in the cell.
Answer:
The correct answer is D
Explanation:
Answer:
d
Explanation:
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The scientist is developing a model to predict the maximum population of eagles a forest can support, known as the carrying capacity. Factors influencing this include food availability, predator presence, and human activities.
The scientist is essentially considering factors impacting the carrying capacity, or the maximum populationsize a forest ecosystem can sustain without degradation. Several factors will influence this, including the availability of food, the presence of predators and human activity.
For example, if the primary food source of the eagles dwindles, the carrying capacity of the eagles will decrease. Similarly, if the number of predators like wolves, which might prey on young or sick birds, increases, the eagle population may decrease. The same result could occur if human activity like logging or urban development encroaches upon the eagle's habitat.
In conclusion, when developing his model, the scientist needs to incorporate variables that account for fluctuations in food availability, predator populations, and human activities in the area.
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tunicates
clams
insects
the discovery that dominant traits are adaptive and recessive traits help stabilize the population
the discovery of populations in which the phenotype of the recessive allele help a population survive
the discovery that populations undergo evolution when they are exposed to the process of natural selection
Scientists concluded that the phenotype of a dominant allele would always be the most common phenotype in a population, and that the discovery of populations in which the recessive allele phenotype helps a population survive, and the discovery that populations evolve when they are exposed to the process of natural selection, to understand more we need to know that....
Stabilizing selection. In stabilizing selection, intermediate phenotypes are more apt than extreme phenotypes. For example, medium-green beetles may be better at camouflaging themselves, thus better at surviving in a forest covered with medium-green plants. Stabilizing selection tends to narrow the curve.
Directional selection. An extreme phenotype is fitter than all other phenotypes. For example, if the beetle populationmigrates to a new environment with dark soil and vegetation, dark green beetles can hide better and survive longer than lighter beetles. Directional selectionshifts the curve towards the most favorable phenotype.
Disruptive selection. The phenotypes of the two extremes are fitter than those in the middle. For example, if the beetles migrate to a new environment with patches of light green moss and dark green bushes, both the light green and dark green beetles will be able to hide better (and survive) than the medium green colored beetles. Diversifying selection produces multiple peaks on the curve.
Based on this information, we can conclude that the following statements:
All this information is of great importance to understand the phenotypes of populations of living beings.
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