Answer:
B:warm fronts
Explanation:
It is warm fronts because the closer it is the warmer it is and the farther it is colder.
Answer:
Deoxyribonucleic acid (DNA) is a unique set of instructions that are in every cell. DNA provides the organisms' cells instructions needed to survive and reproduce.
Explanation:
Cells, like humans, cannot generate energy without locating a source in their environment. However, whereas humans search for substances like fossil fuels to power their homes and businesses, cells seek their energy in the form of food molecules or sunlight. In fact, the Sun is the ultimate source of energy for almost all cells, because photosynthetic prokaryotes, algae, and plant cells harness solar energy and use it to make the complex organic food molecules that other cells rely on for the energy required to sustain growth, metabolism, and reproduction.
Cellular nutrients come in many forms, including sugars and fats. In order to provide a cell with energy, these molecules have to pass across the cell membrane, which functions as a barrier — but not an impassable one. Like the exterior walls of a house, the plasma membrane is semi-permeable. In much the same way that doors and windows allow necessities to enter the house, various proteins that span the cell membrane permit specific molecules into the cell, although they may require some energy input to accomplish this task
The answer is A, because the phytoplankton is the foundation of this food web. Without your foundation, "the building will begin to crumble".
Carbon has four electrons in its outer shell, thus it can form four bonds
