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)

Weegy: Living organism is any living biological entity, such as an animal, plant, fungus, or bacterium. User: What is the significance of the central dogma of molecular biology? Weegy: The central dogma of molecular biology is centered upon the process of detailed residue-by-residue transfer of sequential information. User: What are trophic levels in an ecosystem? Weegy: The trophic level of an organism is the position it occupies in a food chain. User: What is a mutation and how can it affect an organism? Weegy: In genetics, a mutation is a change of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal genetic element. User: What are the basic principles of genetics? Weegy: Genetics is a term that refers to the study of genes and their role in inheritance ? the way certain traits are passed down from one generation to another. User: How do enzymes increase the rate of chemical reactions? Weegy: Enzymes are used during chemical reactions that take place within the body. User: How does the process of photosynthesis convert light energy into chemical energy? Weegy: A solar powered car converts light energy into mechanical energy. User: How do organisms adapt to their environments? (More)