The walnut tree's seeds are ingested by an animal and then deposited somewhere else through that animal's feces. The maple tree disperses the seeds by wind. The wind can carry the seeds far distances.
Answer: A.it is a relatively new human adaptation.
Explanation:
Fight or flight response is a response shown by a human or animal body towards acute stress. It is a physiological reaction that occurs in response to the perceived attack, survival threat and attack. The animals or humans react to threats by the hormonal secretion from sympathetic nervous system. This prepared animals for fighting. The hormonal secretions like catecholamines, epinephrine and nonepinephrine helps in generation of response. Neurotransmitters dopamine, estrogen, testosteron e and cortisol affects how organisms react to the stress.
Fight-or-flight reaction is not a relatively new human adaptation but it is evolved as a survival mechanism which was also present in primitive human beings and mammals and helped them to react in the life-threatening situations.
The correct answer is soil structure. Soil structure refers to the arrangement of soil separates into units which are called soil aggregates which possess solids and pore space. Aggregates are separated by planes of weakness and are dominated by clay particles. Example of an aggregate is silt and fine sand.
Answer:
someone kissed a woman. is that a good romance story
Explanation:
The image shows a phospholipid bilayer. Macromolecules that make up most of the structure that is shown are proteins and lipids. Lipids can make up 20% to 80% of the membrane depending on the location and type of the cell. The rest is made up of proteins.
