Option 3
Tissues perform specialised functions, depending on their location in the body.
Answer:
Explanation: provides protection for a cell
Answer: D
Explanation: the continents wee once connected. It was known as Pangea
Answer:
water polarity causes cohesion that pulls other water molecules up through a plant.
Explanation:
Water for plants is essential because it constitutes one of the necessary elements so that they can generate their food through the process called photosynthesis.
In effect, plants take the hydrogen from a water molecule and discard the oxygen, providing the atmosphere with this essential gas for life.
Plants and animals could not live without nitrogen. It is an important part of many cells and processes such as amino acids, proteins, and even our DNA. It is also needed to make chlorophyll in plants, which plants use in photosynthesis to make their food and energy.
Nitrogen is an important component of many essential structural, genetic and metabolic compounds in plant cells. It is also an elementary constituent of numerous important organic compounds including amino acids, proteins, nucleic acids, enzymes, and the chlorophyll molecule.
Of all the essential nutrients, nitrogen is the one that is most often limiting for crop growth. Nitrogen is the nutrient which normally produces the greatest yield response in crop plants, promoting rapid vegetative growth and giving the plant a healthy green color.