Answer:
<h2>Concentration Gradient </h2>
<h3>Hope it helps you </h3>
The answer is C) covalent bond
What is a cell?
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body’s hereditary material and can make copies of themselves.
Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell. Human cells contain the following major parts,
Cytoplasm
Cytoskeleton
Endoplasmic reticulum
Golgi apparatus
Lysosomes and peroxisomes
Mitochondria
Nucleus
Plasma membrane
Ribosomes
hope this will help
<span>ecosystems limiting factors include the temperature of the water, sunlight, the amount of nutrients, and dissolved oxygen content, which is the amount of oxygen gas dissolved in a given volume of water at a particular temperature and pressure. The salinity can also be a limiting factor in aquatic ecosystems.</span>
