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?A:It doesn’t take all factors into account.
B:It isn’t drawn to scale.
C:It’s a mathematical model, not a conceptual model.
D:It needs to be a physical model, not a conceptual model

Answer:

occurs when one gene influences two or more seemingly unrelated phenotypic traits.

Explanation:

thats just what i read so i hope this helps

Answer: C. grass

Explanation:

A living organism can be define as an organism which is capable of responding to the external stimuli, growth, reproduction and development during it's life span.

Among the options given, grass is the correct option, this is because of the fact that grass describes to be a complete organism. But the egg cell, human heart are the parts of the living beings. The atmosphere is the part of earth which includes the mass of gases called as air. It is not a living organism.

Answer: The correct answer is 1) leaves.

Cactus is a desert plant that possesses thick, enlarged, and leafless stems that are covered with sharp spines or spikes. These sharp cactus spines are the modified leaves that provide them an extra advantage for surviving in desert.

Cactus spines provide protection against predator (as they are very sharp) and prevent the loss of water by reducing the flow of air near the cactus and giving them some shade.

Answer : He needs to use a larger sample size to improve his experiment.

Explanation : As Johannes wants to know whether soil, water, or both are needed for plant growth. He chooses to conduct experiments on a willow tree for five years. To get the improvement in his experimental methods he can choose a larger size of the sample and test its results. As larger size will allow him to gauge accurately on the smaller factors and results will be more reliable. Larger sampling will ensure the homogeneity of the test sample, which will yield better and reliable results.

Johanneswants to know whether soil, water, or both are needed for plantgrowth. He chooses to conduct experiments on a willow tree for fiveyears to answer his question. His experimental methods can be changedby testing more factors in the environment. This will improve hisexperiment.

Ihope it helps, Regards.