Gina is an ecologist, she is studying damage to tree bark in a forest. initial research suggests that a new animal species that’s entered the area caused the damage. so, gina draws a model to show her colleagues what’s happening. further research suggests that the animal has carried a bacteria that has infected the trees, causing the damage. what are the limitations of gina’s model?
1.it doesn’t take all factors into account.
2.it isn’t drawn to scale.
3.it’s a mathematical model, not a conceptual model.
4.it needs to be a physical model, not a conceptual model

The first amino acid of a new polypeptide chain is

Why do oceanic plates tend to subduction when colliding with a continental plate

In 2015, about ten percent of total u.s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power