B: add more water Explanation: it makes sense
Answer:
El statement that say Direct observation is the simplest and most effective method to determine population size is false.
Explanation:
Simple observation results in an inadequate method for estimating the size of a population, especially if it is very large and mobile. A simple and adequate method consists of counting individuals within a population, with some limitations.
Currently, in large populations, it is common to divide an area occupied by a population into quadrants, count individuals, and then extrapolate the data to the actual dimensions of the space occupied by that population.
Answer:
Less biological relevant model and reduce cell to cell interaction.
Explanation:
The two main disadvantages of a 2D model of the digestive system is that it is less biological relevant model and reduce cell to cell interaction. The 2D model does not show high resemblance to reality and this model also fail to show the interactions of two cell surfaces with each other. In short, this model, does not give us complete knowledge about any biological system.
Id say b. you can rule out d because we know for sure the environment can effect u so that's out. same with c because the environment dousen't say oh Ur alurgec to pollen so their will be no pollen when your out. a would be a possible one but it douse not deter man every genetic trait. id go with b.
