That is all up to ones opinion no one really knows because no one that is living now was alive then all we can go by is secondary sources to let us know
Answer:
A
Explanation:
I believe the answer is A because conservation tillage reduces erosion & runoff but I'm not 100% sure.
Answer:
Answered below
Explanation:
Birds and mammals have a double circulatory system and a four-chambered heart which separates the oxygenated blood and the deoxygenated blood from each other in the heart. This system of circulation is necessary to serve the high energy needs of the mammals and birds.
In this system, deoxygenated blood from the body passes through the superior and inferior Vena Cava into the right atrium. From the right atrium it flows into the right ventricle. From the right ventricle, it is then pumped into the pulmonary artery to be carried to the lungs. In the lungs, the deoxygenated blood is oxygenated and returned to the heart through the pulmonary veins.
Oxygenated blood enters the left atrium from the lungs through the pulmonary veins. It then moves into the left ventricle. In the left ventricle, it is then pumped into the aorta. The aorta is a large vessel that runs the length of the vertebral column, branching off to be circulate blood in the body system.
Answer: a. Adaptive radiation of Euprimates.
Explanation:
Adaptive radiation is the swift diversification, from a single common ancestor, of a group of species consisting of members that exhibit a diverse array of adaptations and inhabit different ecological niches.
Climate is an important factor that determines where a species can inhabit or not. Daily and seasonal variations in temperature, annual cycles of precipitation, and larger change in climate shape adaptations of plants and animals may be considered in determining their survival. Changes in global and regional climates seemingly had profound effects on the evolutionary history and adaptive radiation of Euprimates.
A rapid temperature increase about 55 mya created tropical conditions globally that caused the adaptive radiation of Euprimates. Warm climates during the Eocene that resulted in plant diversity, created new environmental niches favorable for primates leading to the record of first major primate group: anthropoids, adapiforms, tarsiers, and omomyiforms.
Actinomycetes will form powdery colonies that stick firmly to the plate and they grow slowly while bacterial colonies are slimy , distinct and will grow faster.
