A. All biomes not dominated by trees typically exhibit considerable seasonality in <span>either temperature, precipitation, or both
</span><span>A biome is composed of various diverging ecosystems that relates with the community. Biomes can either be deserts, grassland, savanna, tropical rain forest, taiga, boreal and etc.</span>
Activators and repressors are transcription-control elements that are found in eukaryotic organisms. These elements function during the process of transcription, where a DNA molecule is coded onto a RNA molecule for it to be sent to ribosomes outside of the nucleus and then polypeptide chains are produced from it.
The activators and repressors control which proteins are made, which means that they can either hinder or promote certain functions in the cells of the body. Therefore, even though all of the cells have the same set of DNA, some are able to produce HCl, while others produce other substances such as insulin.
The food item that has the most carbs .. carbs is a huge contributing factor to energy
Light energy from the sun and water is needed by the plant to facilitate the light dependent reactions.
The correct answer is choice A.) Fish die from lack of oxygen due to an algal bloom. B would not likely be caused by any sort of biological water pollution, and choice D would most likely be caused by humans. Choice C could be an option as well, but can be caused by human activity, such as removal of plants keeping erosion of soil at bay, which washes more and more sediment to bodies of water. Hope this helped!