None of them because A and D are not physical recoures and B and C are not renewable.
The primary function of the conus arteriosus is to prevent the backflow of blood and keep a steady flow of blood into the ventral aorta and the gills. The lower jaw in a frog helps in opening and closing of mouth which is necessary to catch and to holding a prey.
Because while species of mosquitoes eat the carcasses of insects that drown in the water, the mosquito larvae feed on the waste products, making nutrients such as nitrogen available for the plant community to thrive.
Answer:
A mineral is an essential nutrient that is needed in larger amounts.
Explanation:
Answer:
Texture indicates the relative content of particles of various sizes, such as sand, silt and clay in the soil. Texture influences the ease with which soil can be worked, the amount of water and air it holds, and the rate at which water can enter and move through soil.