Read the Mungo Lady and Mungo Man While Dr. Thorne is not the author of the reading, what are his qualifications? What experience does he have?
How often does the body perform cellular respiration? A.once in the morning and once at night B.only at night C.continuously D.only when the body runs out of ATP
The interdependence of body systems is essential because A. each system can work independently on its own. B. all systems work together to maintain homeostasis. C. very few processes are controlled by hormones. D. each system doesn't rely on the others to work.
Which of the following factors would have the smallest impact on a population’s size? a. the total number of organisms b. the available water supply c. the variety of organisms d. adequate shelter
Which process is similar to binary fission? A. genetic variation B. crossing over C. meiosis D. mitosis
The diagram shows a nucleic acid in the shape of a helix. Which sugar is present in the nucleic acid that is represented in the diagram? uracil thymine deoxyribose ribose Download jpg
Which of the following statements about the interactions between insects and trees is not true? a. For some species of trees, insects are required for pollination. b. Trees provide necessary shelter for a variety of insect species. c. Insects have predatory relationships with trees, rather than mutually beneficial ones. d. Insects can cause loss of tree productivity and even death.
Typical methods of classroom scientific communication include A.scientific journal articles, oral presentations, and Internet collaboration.B.lectures, lab reports, term papers, and poster presentations.C.scientific journal articles, professional organizations, and conferences.D.lectures, conferences, term papers, and technical journals.
_____________ are fat-soluble signal molecules that are derived from cholesterol.A)CholesterasesB)GlycogensC)ProteinoidsD)Steroids
The derived characteristic of protostome development is found in which of the following phyla? A. Echinoderms B. Cnidarians C. Roundworms D. Sponges I’m pretty sure the answer is C ?
In an ecosystem, energy from the Sun is transferred by way of _____. food chains or webs transpiration kinetics condensation
The opening through which magma flows through a volcano to the earth's surface is a caldera? true or false
How does the neuroendocrine system maintain homeostasis in the body? a. neuroendocrines activate the somatic response and the sympathetic response. b. hormones are made from proteins, and neurons are made from cholesterol. c. adrenal glands cause exocrine reactions, and pituitary glands cause endocrine reactions. d. neurons check for imbalances and tell the endocrine system to send out hormones?
Gathering information with your eyes is called.A. central vision B. peripheral visionC. rubbernecking D. visual perceptionPlease support your answer with short comment ;)
The multiple reflection of a single sound wave is a/an a. reverberation. b. echo. c. diffraction. d. refraction.
Which of the following is not necessary for a plant to carry out photosynthesis? a. carbon dioxide b. water c. oxygen d. sunlight
Which of the following organs is responsible for removing nitrogenous waste by producing urea? A-small intestine B-liver C-urinary bladder D-kidney
Which best describes thermal energy? It is the difference between internal energies of two or more substances. It is the sum of internal energies of two or more substances. It is the portion of internal energy that can be transferred from one substance to another. It is the portion of potential energy that can be transferred from one substance to another.
Which of the following statements about monsoons are correct? Check all that apply. A.Monsoon climate is good for rice farming. B.Heavy monsoons are a boom to local economies. C.Weak monsoon seasons lower agricultural output. D.Monsoons can cause devastating landslides and floods.
Which of the following must unicellular organisms do to maintain homeostasis? A. Use chemical signals to communicate between its cells B. Change food or sunlight into useful energy C. Specialize cells to perform specific functions D. Organize cells into tissues
10.) The specialized leaves of a flower that do not produce gametophytes are the (1 point) A - carpel and stamens. B - filaments and anthers. C - stigma and style. D - sepals and petals.
Which of the following statements is true for a eukaryotic cell? Select one of the options below as your answer: A. Does not possess intracellular membrane bound organelles. Everything inside just floats freely in the cytoplasm. B. Possesses the characteristic of compartmentalization of organelles, wherein the organelles are bound by membranes. C. Possesses simple duplex DNA in the form of a circular loop.
Which one of the following statements correctly defines active site? a. The active site is a site on the enzyme molecule where specific substrate molecules bind. b. The active site is a site on the substrate molecule where specific enzyme molecules bind. c. The active site is a site on the substrate molecule where specific product molecules bind.
Which best describes a codon? a. a cell structure that gives the master instructions for an organism b. a segment of DNA that is the basis of heredity in organisms c. the sequence of three bases that codes for a specific amino acid d. the basic unit of structure and function of all living things
What is a possible cost of habitat destruction? Non-sustainable energy Fewer landfills Less biodiversity Fossil fuel decreases