Answer:
All of the above.
Explanation:
Garden peas were used by Mendel for experiment and are good choice of studying heredity because they have the ability to control their fertilization and transfer pollen . They can engage in either self fertilization or cross's fertilization.
Garden peas are easy to grow and they can be bred very easily and they have alot of traits that can easily be observed i.e their characteristics are visible and they produce many offsprings.
They are of different varieties.
This is true and false. It's formulated very confusing. I'd be more inclined to stay the statement is false because the theory of evolution didn't seem reasonable because we didn't know the complexity of living cells but rather because it was in line with the predicitons made by the theory and it made more epistemological sense that did creationism.
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21. There must be enough sample to test properly.22. Asteroid impact may be a better term than meteorite collision.The impact made the atmosphere opaquer by filling it with dust, and indirectly, smoke, from fires touched off by hot impact debris. Since the atmosphere admitted much less sunlight, photosynthesis and plant productivity were curtailed, with disastrous results, especially for those with the greatest energy requirements, the dinosaurs. Of course, many dinosaurs were killed directly by the impact in areas nearest the Yucatan zero e.g. North America
A subsurface rock layer that is composed of clay and bedrock and is an impermeable barrier to water flow would be described as a(n) <u>aquifer(option b)</u>.
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt).
The study of water flow in aquifers and the characterization of aquifers is called hydrogeology. Aquifers occur from near-surface to deeper than 9,000 metres (30,000 ft).
There are three different types of aquifers: confined, unconfined, and perched. Recharge zones are typically at higher altitudes but can occur wherever water enters an aquifer, such as from rain, snowmelt, river and reservoir leakage, or from irrigation.
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Through the process of photosynthesis
