Weegy: Ribosomes are cell organelles that consist of RNA and proteins. User: What is the structure of a neuron? Weegy: A neuron is a nerve cell that is the basic building block of the nervous system. User: What is the significance of the Hardy-Weinberg equilibrium? Weegy: The Hardy Weinberg principle, also known as the Hardy Weinberg equilibrium, model, theorem, or law, states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. User: What is the purpose of the cell membrane? Weegy: The cell membrane is a thin semi-permeable membrane that surrounds the cell's cytoplasm, enclosing its contents. User: What is natural selection? Weegy: User: What are the four macromolecules essential for life? Weegy: Glucose are examples of molecules; protein are examples of [ macromolecules. ] (More)

Weegy: Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products. User: How do plants absorb water and nutrients? Weegy: A plant nutrient is a chemical element that is essential for plant growth and reproduction. User: How does cellular respiration produce energy? Weegy: Cellular respiration is a series of set of metabolic reactions and processes. User: How do vaccines work to protect against diseases? Weegy: A vaccine is a preparation of a weakened or killed pathogen, such as a bacterium or virus, or of a portion of the pathogen's structure, that upon administration stimulates antibody production or cellular immunity against the pathogen but is incapable of causing severe infection. User: How do signals travel between neurons? Weegy: The portion of the neuron that receives signals from other neurons is the dendrite. User: How do hormones affect cellular processes? Weegy: Cellular means pertaining to or characterized by cellules or cells, especially minute compartments or cavities or of or pertaining to cellular phones. (More)

Weegy: DNA replication is the process of producing two identical replicas from one original DNA molecule, which happens when a cell divides. User: How do immune cells recognize pathogens? (More)

Weegy: Chloroplasts work to convert light energy of the Sun into sugars that can be used by cells. User: What are the properties of water that make it vital for life? Weegy: The Properties of Water: Water is the most abundant compound on Earth s surface. In nature, water exists in the liquid, solid, and gaseous states. It is in dynamic equilibrium between the liquid and gas states at 0 degrees Celsius and 1 atm of pressure. At room temperature (approximately 25 degrees Celsius), it is a tasteless, odorless, and colorless liquid. Many substances dissolve in water, and it is commonly referred to as the universal solvent. User: What is a biome? (More)

Weegy: The main difference between a prokaryotic cell and a eukaryotic cell is: prokaryotic cells do not have any membrane-bound organelles and are always part of unicellular organisms. User: What are the stages of mitosis? Weegy: Mitosis has four stages: prophase, metaphase, anaphase, and telophase. User: What role do enzymes play in biological reactions? Weegy: Enzymes speed up biological reactions by lowering activation energy, allowing molecules to react more efficiently. They bind to specific substrates at their active sites, facilitating chemical transformations without being consumed. User: What are the primary components of the immune system? Weegy: The immune system is a network of cells, tissues, and organs that work together to protect the body from infection. User: What is the difference between RNA and DNA? Weegy: The main difference between DNA and RNA is the sugar present in the molecules. While the sugar present in an RNA molecule is ribose, the sugar present in a molecule of DNA is deoxyribose. [ Deoxyribose is the same as ribose, except that the former has one more OH. ] User: What are stem cells and their potential uses? (More)