Answer:
The correct answer is - option B. 19 mg/kg soil.
Explanation:
Phytoremediation is a process of the bioremediation that uses different plants to transfer, remove or destroy the contaminants from the soil. Cd is one of the contaminants that are removed or destroyed by the process of the phytoremediation.19 mg/kg soil is the concentration was available in the soil prior to the phytoremedaition took place.
Thus, the correct answer is - option B.
Answer:
Explanation:
Most limestones actually start as calcium carbonate mud or shells precipitated by organisms in reefs or shallow shelf regions - the biosphere. Over time, the limestone is broken down into its chemical parts and may come back to the surface as volcanic CO2 (in the atmosphere).
The answer is (D), because none of the other answers make sense
The first line of defense in plants is an intact and impenetrable barrier composed of bark and a waxy cuticle. Both protect plants against herbivores. Other adaptations against herbivores include hard shells, thorns (modified branches), and spines (modified leaves).
Answer:
The answer is B. The most recent common ancestor.
Explanation:
Cladograms are used to illustrate relationships related to morphological and evolutive traits. So then, in a cladogram when organisms are closely related, they appear closer in the branches. Common branches and nodes mean close relationships and common ancestors on a scale of time.
