Double helix is the correct answer
Answer:
A limiting factor is anything that constrains a population's size and slows or stops it from growing. Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight available in an environment. Limiting factors are usually expressed as a lack of a particular resource. For example, if there are not enough prey animals in a forest to feed a large population of predators, then food becomes a limiting factor. Likewise, if there is not enough space in a pond for a large number of fish, then space becomes a limiting factor. There can be many different limiting factors at work in a single habitat, and the same limiting factors can affect the populations of both plant and animal species. Ultimately, limiting factors determine a habitat's carrying capacity, which is the maximum size of the population it can support.
Explanation:
https://www.nationalgeographic.org/topics/limiting-factors/?q=&page=1&per_page=25
Answer:
To transport signals to the rest of the body and to keep the body upright.
Explanation:
To protect the nerves and keep the body upright. This is because if your spine is broken, then you become paralysed therefore it's an extremely important aspect for the body.
Answer:
Ice is not an organic molecule.
Explanation:
Organic molecules are a specific type of molecule that contain at least one carbon atom that is attached to other atoms such as Hydrogen, oxygen.
In the given question lipid,carbohydrate and nucleic contain carbon atoms that are linked together with Hydrogen atoms, oxygen atom and nitrogen atom as a result they can be categorized as organic molecule.
on the other hand ice is the solid form of water(H2O) which itself is an inorganic molecule,from that point of view ice is not an organic molecule.
