Answer:
Explanation:
hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract and spleen to the liver. This blood are usually rich in nutrient because it contains extraction from digested materials or food substances in the gastrointestinal tract and it is processed in the liver for removal of toxins before the blood returns to the heart.
<span>The correct answer is D: All of the above. Any small individual changes in the eco-system can cause larger scale changes throughout the eco system due to the interconnectivity of species within the larger system.</span>
Answer: A. True.
Explanation: A substance or material is hazardous if can be dangerous to a susceptible agent. This susceptible agent can be a human being, an animal, a plant, a fungi or any other living form, or an environment agents like water, soils, air etc. that can be contaminated with it and later could be dangerous for a living forms.
C. Assuming the gametes for red flowering plant is heterozygous and the white is homozygous, it will be all pink
It is more precise to illustrate biosphere as the global ecosystem rather than the global community as it just comprises all the living things in a specific region regarding their distinct species. However, when one talks about the ecosystem, one automatically incorporates both the nonliving and living things like water, soil, etc. So, it is more precise in saying the global ecosystem, when one is talking about the Earth biosphere.
As marine ecosystems constitute over 70 percent of the surface of the Earth, the influence of these ecosystems on the global food web is impressive. The oceans are an essential source of oxygen for the planet and are efficient in the recovery and room for carbon dioxide. The marine classes offer essential ecosystem services like the preparation of drugs, food, and livelihoods. They also support recreational projects and tourism all around the globe.
