100 ! will mark brainlest to whoever answers first btw answer, like if u where a 6th grader
scientists use models to them study systems in nature, such as predicting the paths of hurricanes, demonstrating how cell organelles work, or determining the effect building a dam would have on the local ecosystem. explain why models are used in science.

The scientific models are the visual representation of the complex natural systems. These models could be presented in the form of a diagram, 2 dimensional or 3-dimensional models which represent the simplified versions of the natural systems.  

The models are used by the scientific communities to explain the very complex phenomenon in simple terms to laymen.

They also play an important role in the research as they can be used to prove or disprove the hypothesis suggested by scientists.

The models act as a physical model to represent the very large and very small models like the solar system and the microscopic organism.

Thus, scientific models play an important role in the scientific world.

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

source:

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.