Development of the ozone layer
>> sharks and trilobites abundant in oceans
>> plants and animals colonize land
>> dominance of reptiles >> dominance of mammals
As for this question, the answer would be B. kidney.
GU system or what they call as the Genitourinary system and may also be referred to as urogenital system is the system of both the reproductive system and the urinary system. They can be classified together into one system due to their immediate proximity, their origin during the embryological stages, and also the usage of a common organ. Rectum would be part of the excretory system. Lymph nodes would be of the lymphatic system and the adrenal gland would be in the endocrine system.
<h2>Answer:</h2>
The population of the guppies will decreases.
<h3>Explanation:</h3>
- In the stream the fine and specific spots of guppies make them visible to their mates.
- This is their survival and reproductive benefit.
- But the predator which prey the guppies by sight will easily catch them and the population of the guppies in stream will decrease.
- There will be another way in which guppies changes their spots for survival, in this case, their mates will not recognize them and the reproduction will decreases.
- Hence the consequence will be decease in population.
Solar Energy is best option of Coal power plant. It is safe as well as very minimal impact on environment.
Explanation:
Solar energy is one of the best ways to build an energy. It uses captured sunlight and create photovoltaic power or “concentrated solar power” for solar heating. The use of solar power is increasing day by day.
Now subway, buses, college, institute all use solar energy for their electricity consumption. Recently solar powered aircraft whose name is impulse2 is made. Because of zero emission of carbon dioxide government move towards this option.
Disadvantage: It is very costly and takes more space for installation
The human activity that impacts the weather on Earth negatively is the burning of fossil fuels. When burning the fossil fuels, the temperature on Earth is increased. This causes Greenhouse Gases. The EPA is trying to cut down on the burning of fossil fuels by closing down power plants ran off of coal.
