Biology

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Biology is important to everyday life because it allows humans to better understand their bodies, their resources and potential threats in the environment. Biology is the study of all living things, so it helps people to understand every organism alive, from the smallest bacteria to California redwoods and blue whales. Professional biologists often concentrate on a small subset of living organisms, such as birds, plants or bacteria.

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  • Why do cells need energy?

    Q: Why do cells need energy?

    A: All living cells need to perform a variety of activities, and these activities require energy. Reproduction, in particular, takes a significant amount of energy. Cells that are starved of energy sources eventually die.
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  • What is the structure of RNA?

    Q: What is the structure of RNA?

    A: The structure of RNA is a single-stranded molecule made up of basic units called nucleotides that contain a nitrogenous base, a five-carbon sugar and a phosphate group. Although there is only one strand of RNA, as opposed to the two stranded double helix of DNA, it does not always follow a linear pattern. Sometimes the molecules form loops and the nitrogenous bases bond.
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  • What are some important reasons for studying biology?

    Q: What are some important reasons for studying biology?

    A: Biology plays an important role in the understanding of complex forms of life involving humans, animals and plants. Understanding these intricate details of life helps humans understand how to care for themselves, animals and plants in the proper manner. Biology helps individuals understand the interaction between humanity and the world. It also develops interests in the lives of living organisms in an effort to preserve them.
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  • What is a feedback mechanism?

    Q: What is a feedback mechanism?

    A: A feedback mechanism is a process that uses the conditions of one component to regulate the function of the other. It is done to either increase or dampen the change in the system. When the process tends to increase the change in the system, the mechanism is known as positive feedback. Negative feedback is when the process seeks to counter the change and maintain equilibrium.
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  • What is the main artery in your body?

    Q: What is the main artery in your body?

    A: According to WebMD, the main artery in the body is the aorta. It is connected to the left ventricle of the heart. The aorta branches off into a web of numerous smaller arteries that exist all over the body.
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  • How many ants are there in the world?

    Q: How many ants are there in the world?

    A: Researchers Bert Holldobler and Edward O. Wilson wrote a book called "The Ants," in which they estimate that there are over 10 quadrillion ants on the planet. Scientists surmise that ants comprise from 15 to 25 percent of the earth's animal biomass. There are 12,762 known species of ants, and the estimated number of total ant species is more than 22,000.
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  • What is a biotic environment?

    Q: What is a biotic environment?

    A: Biotic environments consist of all living things in an ecosystem. All of the plants, animals, fungi and microbes in an environment are said to be its biotic component. The biotic component is distinguished from the abiotic, or nonliving, component, which is mainly comprised of the mineral, chemical and energetic components of the environment such as water, sunlight and soil.
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  • What is the difference between internal and external fertilization?

    Q: What is the difference between internal and external fertilization?

    A: The difference between internal and external fertilization is that internal fertilization occurs inside the body, whereas external fertilization happens outside the body. Fertilization is the process by which a sperm cell and an egg cell unite to form a completely new individual.
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  • What is behavioral adaptation?

    Q: What is behavioral adaptation?

    A: Behavioral adaptation is the process by which an organism or a species changes its pattern of action to better suit its environment. It is contrasted with structural adaptation, which is the appearance of physical features that confer an advantage upon a species.
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  • What are examples of living things?

    Q: What are examples of living things?

    A: Examples of living things are elephants, zebras, cows, sheep, fir trees, oak trees, sharks, whales, otters, rubber trees, monkeys and humans. All living things are broadly classified into plants and animals.
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  • Where does tea tree oil come from?

    Q: Where does tea tree oil come from?

    A: Tea tree oil is extracted from the leaves of the tea tree, which is a tree that is native to the eastern part of Australia. In research settings, tea tree oil has shown the potential to treat conditions like acne, lice, scabies and fungal infections, such as athlete's foot, herpes, insect bites and dandruff, and it may have antimicrobial properties as well, according to WebMD.
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  • At what temperature does human blood boil?

    Q: At what temperature does human blood boil?

    A: Blood boils at approximately the same temperature as water, around 100 degrees centigrade. Human blood is essentially a water solution, made up primarily of water. The salt in the blood, a concentration of approximately 0.9 percent, does little to increase the boiling point of human blood.
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  • What is the difference between fungus and bacteria?

    Q: What is the difference between fungus and bacteria?

    A: Fungi are multicellular, eukaryotic organisms, while bacteria are single-celled prokaryotes. The cells of fungi have nuclei that contain the chromosomes and other organelles, such as mitochondria and ribosomes. Bacteria are much smaller than fungi, do not have nuclei or other organelles and cannot reproduce sexually.
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  • What is a taxonomic key?

    Q: What is a taxonomic key?

    A: A taxonomic key is a method used to classify and identify objects and organisms. It shows a series of choices about the characteristics of different organisms. A user picks from these choices and ultimately finds the identity of a specimen.
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  • What is a list of non-pathogenic bacteria?

    Q: What is a list of non-pathogenic bacteria?

    A: A list of non-pathogenic bacteria is an outline of the types of bacteria that do not cause illnesses in humans. They include staphylococcus, lactobacillus, Escherichia coli, bifidobacteria, bacteroides and Brevibacterium linens. These bacteria have positive roles in the functioning of the body and are therefore harmless.
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  • What are the abiotic factors of a forest?

    Q: What are the abiotic factors of a forest?

    A: The abiotic factors present in a forest include precipitation, soil chemistry, temperature, water chemistry, sunlight and moisture level. All these factors have an affect on the living things in the forest ecosystem.
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  • Why is the brain important in the human body?

    Q: Why is the brain important in the human body?

    A: The brain is important in the human body because it allows a person to think, feel and store memories, and it controls and coordinates the body’s actions and reactions, states the Atlanta Brain and Spine Care. The brain is an incredibly complex organ composed of many parts, including the cranium, the cerebrum, the brain stem and the cerebellum.
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  • What are the branches of biological science?

    Q: What are the branches of biological science?

    A: There are multiple branches of biology, including agriculture, anatomy, genetics, biochemistry, botany and zoology. Each branch of biology studies a specific aspect of nature and living organisms.
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  • What is the function of a synaptic knob?

    Q: What is the function of a synaptic knob?

    A: The function of a synaptic knob is to change the action potential that is carried by axons into a chemical message. The chemical message then interacts with the recipient neuron or effector. This process is called synaptic transmission.
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  • What is cutaneous respiration?

    Q: What is cutaneous respiration?

    A: Cutaneous respiration occurs in insects and organisms that do not have respiratory organs. These organisms diffuse dissolved oxygen across their bodies in order to breathe.
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  • What is organic evolution?

    Q: What is organic evolution?

    A: Organic evolution are the events involved in the evolutionary development of a species. It means that all life descended from other life, although features may have changed dramatically along the way.
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