Biology

A:

Plants and fungi are both eukaryotic organisms whose cells are buffered by cellulose walls. Like plants, some fungi can be used as food and medicine, and they are alike in their relative lack of mobility.

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  • What are the advantages of the amniotic egg?

    Q: What are the advantages of the amniotic egg?

    A: The amniotic egg allows reptiles, birds and mammals to lay eggs on land without drying out. The fluid-filled cavity containing the embryo is separated from the external environment by an amniotic sac that is impermeable to water. It is protected by an external hard shell.
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  • What is Charles Darwin famous for?

    Q: What is Charles Darwin famous for?

    A: Charles Darwin, an English scientist, wrote the book, "On the Origin of Species by Means of Natural Selection," which has served as the basis for modern theories concerning evolution since its publication in 1859. While evolutionists existed before his time, Darwin's theory of natural selection changed the way humans think about the natural world.
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  • What is character displacement?

    Q: What is character displacement?

    A: Character displacement occurs when certain characteristics react to evolutionary factors and stimuli. This displacement allows closely related species to coexist in societies without creating different species, breeds or overgrowing the population of a species.
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  • What is the difference between binary fission and mitosis?

    Q: What is the difference between binary fission and mitosis?

    A: According to Estrella Mountain Community College, the main difference between mitosis and binary fission are the cells that perform these tasks. Prokaryotic cells divide by binary fission, while eukaryotic cells divide by mitosis.
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  • How are gram-positive cocci in pairs interpreted?

    Q: How are gram-positive cocci in pairs interpreted?

    A: A Gram stain showing gram-positive cocci in pairs, or diplococci, is a morphological characteristic of several bacteria. Gram stains can be positive or negative, depending on the cell wall composition of the bacteria. Morphologies in Gram stains include cocci, rods, coccobacilli and spirochetes
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  • What is biological science?

    Q: What is biological science?

    A: Biological science, or biology, is the study of living organisms, such as plants, animals and other living organisms. The subject of biology is divided into many separate fields, such as behavior, human anatomy, botany, physiology, zoology, ecology and genetics.
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  • Can black bumblebees sting?

    Q: Can black bumblebees sting?

    A: Female black bumblebees have the ability to sting but rarely do. Their stingers are smooth and capable of repeated stings. Males lack the ability to sting.
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  • What is the scientific classification of an amoeba?

    Q: What is the scientific classification of an amoeba?

    A: According to the ITIS Standard Report Page, the amoeba is scientifically considered a species or genus within the kingdom Protozoa. The species consists of shapeless unicellular organisms that reproduce asexually.
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  • What characteristics are used to classify organisms?

    Q: What characteristics are used to classify organisms?

    A: Three of the major characteristics used to classify organisms are cell structure, mode of nutrition and cellularity. These characteristics help scientists determine how organisms are similar to each other as well as how they are different from each other.
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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 an example of parasitism in coral reefs?

    Q: What is an example of parasitism in coral reefs?

    A: One example of a parasitic relationship in coral reefs includes crustaceans from the Copepoda or Isopoda orders, which attach to fish in the reefs, sometimes causing harm but at other times simply holding on and feeding on food particles that float by them. Coral reefs feature organisms that coexist in a number of different relationships, including parasitism, but also symbiosis, competition, commensalism and mutualism.
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  • What is the function of the cranium?

    Q: What is the function of the cranium?

    A: The cranium, or skull, protects the fragile brain from damage, according to the BBC. In humans, the cranium is composed of eight different bones that grow together. These different bones attach at areas called sutures.
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  • How do diatoms and dinoflagellates compare?

    Q: How do diatoms and dinoflagellates compare?

    A: Diatoms and dinoflagellates are both types of phytoplankton that live in oceans throughout the world, but they contain unique physical characteristics that make them easy to distinguish from one another. Diatoms and dinoflagellates fall into the broad category of phytoplankton. These two groups are the most common of all phytoplanktons and have single cells but vary in body size and shape.
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  • Why is homeostasis important to organisms?

    Q: Why is homeostasis important to organisms?

    A: By maintaining homeostasis, organisms remain healthy, strong and stable, with protection from the attacks of foreign organisms, such as viruses, bacteria and fungi. Homeostasis enables organisms to remain balanced while living in constantly changing environments.
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  • What are the harmful effects of microorganisms?

    Q: What are the harmful effects of microorganisms?

    A: While not every microorganism is dangerous, some microorganisms can cause disease and infections in humans and other living things. Microorganisms, also called microbes, also contribute to decomposition and spoilage of food, and they can leave toxic waste products behind even if they are eradicated from the contaminated material.
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  • What is the economic importance of protozoans?

    Q: What is the economic importance of protozoans?

    A: Protozoans are an indirect source of food for man, fish and other animals. Protozoa also play an important role in water purification by breaking down organic waste substances in the water. Prospectors use the skeletal deposits of marine protozoans to pin point the location of oil. Protozoans also cause malaria, an infection that kills and weakens millions of people every year, affecting their ability to work.
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  • Why is it important to classify organisms?

    Q: Why is it important to classify organisms?

    A: There are many reasons that classifying organisms is important, such as helping understand the genetic relationships between different groups and species, helping with wide studies of organisms and helping to develop new biological sciences such as biogeography. Each of the groups and sets are created by studying the differences and similarities found in species and organisms known.
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  • What is the definition of social factors?

    Q: What is the definition of social factors?

    A: Social factors are things that affect lifestyle, such as religion, wealth or family. It is important for businesses to be aware of these factors as they change because it is a very important component in proper marketing.
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  • What are some of the primary functions of proteins?

    Q: What are some of the primary functions of proteins?

    A: Some of the primary functions of proteins include their enabling the biochemical reactions that help digest food and respond to stimuli, replicating DNA and providing the structural building blocks for muscles, skin and other tissues. Acting as catalysts, enzymes are the protein-based molecules that play an important role in a wide range of organic processes. Proteins also help to transport nutrients and vital substances, one example being hemoglobin, which transports oxygen throughout the bloodstream.
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  • How much energy is lost at each trophic level?

    Q: How much energy is lost at each trophic level?

    A: According to the BBC, about 90 percent of the available energy in any trophic level is lost and becomes unavailable to higher trophic levels. For example, if the green plants in a habitat represent 1000 calories of food per square foot, the herbivores that eat these plants only represent about 100 calories per square foot. The predators that feed on these herbivores only represent about 10 calories per square foot.
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  • What is the function of chlorophyll?

    Q: What is the function of chlorophyll?

    A: Chlorophyll’s function in plants is to absorb light and transfer it through the plant during photosynthesis. The chlorophyll in a plant is found on the thylakoids in the chloroplasts.
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