Answer:
Soil Layers. Soil is composed of both biotic—living and once-living things, like plants and insects—and abiotic materials—nonliving factors, like minerals, water, and air. Soil contains air, water, and minerals as well as plant and animal matter, both living and dead. These soil components fall into two categories.
The correct choice is d, the burning if fossil fuels because fossil fuels do a lot of harm to the world.
When baroreceptors sense a drop in blood pressure, the vasomotor center responds by triggering peripheral vasoconstriction. When there is decreased blood pressure thei baroreceptor firing decreases, thus decreasing the activity of cardiac inhibitor centers, and increasing the activity of accelerator centers and the vasomotor center, therefore this results to an increased cardiac output and an increased vasoconstriction which results to increases blood pressure back to normal.
Answer: This indicates the direction of the flow of energy from the prey to the predator.
Explanation:
Answer;
-Carboxyl group
Explanation;
-Lipids is one of the four important biomolecules, others being, nucleic acid, carbohydrates, and proteins.
-Lipids are made of glycerol and fatty acids. Fatty acids consist of a carboxylic acid (-C=O-OH functional group) with a long un-branched hydrocarbon chain. Fatty acids serve as a precursor for other lipids and are used by the body for energy storage. Fatty acids may be saturated or unsaturated. Saturated fatty acids have single bonds between each carbon, while unsaturated have either a double or triple bonds.