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1/20
What is an organism that lives on or inside another organism called?
What is an organism that lives on or inside another organism called?
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A parasite is an animal or plant that lives inside or on another animal or plant and gets food or protection from it. Parasites may be characterized as ectoparasites—including ticks, fleas, leeches, and lice—which live on the body surface of the host and do not themselves commonly cause disease in the host; or endoparasites, which may be either intercellular (inhabiting spaces in the host’s body) or intracellular (inhabiting cells in the host’s body).
Source: Britannica
2/20
Which of these is a hormone?
Which of these is a hormone?
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ChlorophyllAdrenalineGlucoseOxygenPoints Won
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Adrenaline (epinephrine) is a hormone your adrenal glands make to help you prepare for stressful or dangerous situations. Adrenaline rush is the name for the quick release of adrenaline into your bloodstream. This gets your body ready for a “fight or flight” response. Adventure-type activities and extreme sports can cause an adrenaline rush.
Source: Cleveland Clinic
3/20
Which gas is essential in the respiration process?
Which gas is essential in the respiration process?
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Every cell in your body needs oxygen to function. You get the oxygen your cells need from the air you breathe, which is made of 20% oxygen. Your body cells use that oxygen to get energy from the food you eat, and this process is called cellular respiration. During cellular respiration, the cell uses oxygen to break down sugar and produce the energy your body needs. When the cell uses oxygen to break down sugar, carbon dioxide is produced, and energy is released.
Source: CK12
4/20
What is the central organ of the cardiovascular system in vertebrates?
What is the central organ of the cardiovascular system in vertebrates?
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The cardiovascular system in all vertebrates consists of the heart and blood vessels. The heart is a muscular organ in most animals. This organ pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body. In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest.
Source: Wikipedia
5/20
A neuron is which sort of cell?
A neuron is which sort of cell?
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A neuron or nerve cell is an electrically excitable cell that communicates with other cells via specialized connections called synapses. The neuron is the main component of nervous tissue in all animals except sponges and placozoa. Non-animals like plants and fungi do not have nerve cells. In most cases, neurons are generated by neural stem cells during brain development and childhood. Neurogenesis largely ceases during adulthood in most areas of the brain.
Source: Wikipedia
6/20
The sun helps your body create which vitamin?
The sun helps your body create which vitamin?
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BDYEPoints Won
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Vitamin D is the sunshine vitamin that has been produced on this earth for more than 500 million years. During exposure to sunlight 7-dehydrocholesterol in the skin absorbs UV B radiation and is converted to previtamin D3 which in turn isomerizes into vitamin D3. Previtamin D3 and vitamin D3 also absorb UV B radiation and are converted into a variety of photoproducts some of which have unique biologic properties.
Source: National Library of Medicine
7/20
Which body system is responsible for breathing?
Which body system is responsible for breathing?
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Respiratory systemImmune systemExcretory systemIntegumentary systemPoints Won
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Our cells need oxygen to survive. One of the waste products produced by cells is another gas called carbon dioxide. The respiratory system takes up oxygen from the air we breathe and expels the unwanted carbon dioxide. The main organ of the respiratory system is the lungs. Other respiratory organs include the nose, the trachea, and the breathing muscles (the diaphragm and the intercostal muscles).
Source: Better Health
8/20
What invertebrate's name literally means "a thousand feet"?
What invertebrate's name literally means "a thousand feet"?
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CentipedeGastropodCephalopodMillipedePoints Won
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Millipedes are a group of arthropods that are characterized by having two pairs of jointed legs on most body segments; they are known scientifically as the class Diplopoda, the name derived from this feature. Each double-legged segment is a result of two single segments fused together. Most millipedes have very elongated cylindrical or flattened bodies with more than 20 segments, while pill millipedes are shorter and can roll into a tight ball. Although the name "millipede" derives from the Latin for "a thousand feet", no species was known to have 1,000 or more until the discovery in 2020 of Eumillipes Persephone, which can have over 1,300 legs. Most millipedes are slow-moving detritivores, eating decaying leaves and other dead plant matter. Some eat fungi or drink plant fluids, and a small number are predatory. Millipedes are generally harmless to humans, although some can become household or garden pests.
Source: Wikipedia
9/20
What are animals that only eat plants known as?
What are animals that only eat plants known as?
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CarnivoreHerbivoreParasiteOmnivorePoints Won
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An herbivore is an organism that mostly feeds on plants. Herbivores range in size from tiny insects such as aphids to large, lumbering elephants. Herbivores are a major part of the food web, a description of which organisms eat other organisms in the wild. Organisms in the food web are grouped into trophic, or nutritional, levels.
Source: National Geographic
10/20
Which of these can be found in plant cells and not animal cells?
Which of these can be found in plant cells and not animal cells?
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MitochondriaCell wallRibosomesCell membranesPoints Won
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Plant cells have a cell wall, chloroplasts, and other specialized plastids, and a large central vacuole, whereas animal cells do not. While both animal and plant cells have microtubule organizing centers (MTOCs), animal cells also have centrioles associated with the MTOC: a complex called the centrosome. Animal cells each have a centrosome and lysosomes, whereas plant cells do not.
Source: LibreTexts Biology
11/20
What do chromosomes carry?
What do chromosomes carry?
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Chromosomes are structures within cells that contain a person's genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Proteins are probably the most important class of material in the body. Proteins are not just building blocks for muscles, connective tissues, skin, and other structures. They also are needed to make enzymes. Enzymes are complex proteins that control and carry out nearly all chemical processes and reactions within the body. The body produces thousands of different enzymes. Thus, the entire structure and function of the body is governed by the types and amounts of proteins the body synthesizes. Protein synthesis is controlled by genes, which are contained on chromosomes.
Source: MSD Manual
12/20
Which of the following is a branch of biology?
Which of the following is a branch of biology?
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PhilosophyBotanyGeologyEconomyPoints Won
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Botany is a branch of biology that deals with the study of plants, including their structure, properties, and biochemical processes. Also included are plant classification and the study of plant diseases and of interactions with the environment. The principles and findings of botany have provided the base for such applied sciences as agriculture, horticulture, and forestry.
Source: Britannica
13/20
Which organelle in plants conducts photosynthesis?
Which organelle in plants conducts photosynthesis?
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RibosomesChloroplastGolgi apparatusNucleusPoints Won
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In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane called the thylakoid membrane, which forms long folds within the organelle. In electron micrographs, thylakoid membranes look like stacks of coins, although the compartments they form are connected like a maze of chambers. The green pigment chlorophyll is located within the thylakoid membrane, and the space between the thylakoid and the chloroplast membranes is called the stroma.
Source: Nature
14/20
What type of cell can develop into blood cells?
What type of cell can develop into blood cells?
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Muscle cellEndothelial cellStem cellBone cellPoints Won
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Within the bone marrow, all blood cells originate from a single type of unspecialized cell called a stem cell. When a stem cell divides, it first becomes an immature red blood cell, white blood cell, or platelet-producing cell. The immature cell then divides, matures further, and ultimately becomes a mature red blood cell, white blood cell, or platelet.
Source: MSD Manuals
15/20
Which of the following is referred to as the "love hormone"?
Which of the following is referred to as the "love hormone"?
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MelatoninTestosteroneOxytocinInsulinPoints Won
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Known as the “love” or “happy” hormone, oxytocin can strongly impact emotions. Researchers in one 2012 study found that couples in the first stages of romantic attachment had significantly higher levels of oxytocin than their unattached counterparts. Oxytocin affects males and females differently, especially in social contexts. This may be because the hormone acts differently in the male and female amygdala. This is the portion of your brain responsible for emotion, motivation, and reward. For example, oxytocin may factor into how females identify who to befriend and how to tend to those relationships. The hormone may play a role in the way males identify competitive relationships and navigate the fight-or-flight response.
Source: Health Line
16/20
Breeding animals or plants for specific traits is called what?
Breeding animals or plants for specific traits is called what?
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Natural selectionGenetic engineeringSelective breedingHybridizationPoints Won
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Selective breeding, also called artificial selection, is the practice of mating individuals with desired traits as a means of increasing the frequency of those traits in a population. In selective breeding, the breeder attempts to isolate and propagate the genotypes (genetic constitutions) that are responsible for an organism’s desired qualities in a suitable environment. Such qualities generally are economically or aesthetically desirable to humans rather than useful to the organism in its natural environment.
Source: Britannica
17/20
In human biology, what does melanin determine?
In human biology, what does melanin determine?
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Heart rateEye, hair, and skin colorHeightWeightPoints Won
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Melanin is a complex polymer that is present in human and animal skin to varying degrees and is responsible for your unique eye, hair, and skin color. Melanin is produced in melanocytes. These cells are located in different areas of your body, including your hair, the innermost layer of your skin, your pupils and irises, your brain, the medulla, and zona reticularis (areas of your adrenal gland), and some parts of your inner ear.
Source: Cleveland Clinic
18/20
What is the term for the transmission of characteristics from parent to child?
What is the term for the transmission of characteristics from parent to child?
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GenealogyEvolutionDiffusionHeredityPoints Won
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Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents. Through heredity, variations between individuals can accumulate and cause species to evolve by natural selection. The study of heredity in biology is genetics.
Source: Wikipedia
19/20
Ascorbic acid is one form of what vitamin?
Ascorbic acid is one form of what vitamin?
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Vitamin CVitamin BVitamin AVitamin DPoints Won
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Vitamin C (ascorbic acid) is a nutrient your body needs to form blood vessels, cartilage, muscle, and collagen in bones. Vitamin C is also vital to your body's healing process. Vitamin C is an antioxidant that helps protect your cells against the effects of free radicals — molecules produced when your body breaks down food or is exposed to tobacco smoke and radiation from the sun, X-rays, or other sources. Free radicals might play a role in heart disease, cancer, and other diseases. Vitamin C also helps your body absorb and store iron.
Source: Mayo Clinic
20/20
What might cells do by mitosis and meiosis?
What might cells do by mitosis and meiosis?
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UnderstandingDivisionReproductionEducationPoints Won
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There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. Because this process is so critical, the steps of mitosis are carefully controlled by certain genes. When mitosis is not regulated correctly, health problems such as cancer can result.
Source: Medline Plus
