This is science...1. In a hot-water heating system, room temperature is controlled by a device called an?________2. Heat Engines convert which type of energy into mechanical work?a. chemical b. nuclearc. thermald. elastic 3. How are internal combustion engines different from external combustion engines? Give examples of both types of engines._____________________
Which of the following represents the phases of mitosis in their proper sequence? a. prophase, metaphase, anaphase, telophase b. interphase, prophase, metaphase, anaphase, telophase c. interphase, prophase, metaphase, telophase d. prophase, metaphase, anaphase, telophase, cytokinesis
Most scientific questions are based on A) opinions. B)hypotheses. C) observations. D) experimental data.
Glucose is NOT made from which of the following? A- carbon dioxide B- sodium chloride C- light D- water
The terms commensalism and mutualism have the same meaning and are interchangeable. Please select the best answer from the choices providedTF
Lamarck wrote an important book talking about A. the old age of Earth. B. how organisms could change. C. the movement of the continents. D. that fossils were extinct organisms.
Life-forms that existed during the Paleozoic Era included ____. a. fish b. trilobites c. reptiles d. all of the above
He term diploë refers to the ________. the term diploë refers to the ________. two types of marrow found within most bones internal layer of spongy bone in flat bones double-layered nature of the connective tissue covering the bone fact that most bones are formed of two types of bone tiss
As per the rules of binomial nomenclature, which species name is written correctly? A) pelecinus polyturator B) Pelecinus polyturator C) Pelecinus polyturator
Unlike amphibians, reptiles A. have lungs to oxygenate blood. B. use single-loop circulatory system. C. have a closed circulation system in which blood circulates entirely within blood vessels. D. have ventricles that are further divided to lessen mixing of oxygen-rich and oxygen-poor blood.
Drag the terms to their correct locations in this concept map about cell division. Gametes, meiosis, mitosis, somatic cells, asexual cells, Sexual cells
Energy that is not passed on from one trophic level to the next is _______. a. lost as heat b. returned to the sun c. destroyed d. all of the above
Carbon dioxide cannot diffuse into the blood from an animal's cells unless the blood has a _____ concentration of carbon dioxide
How are finches in the Galápagos Islands a good example of adaptation? A. Each species has a special beak adaptation. B. There is very little competition for food. C. Finches are very good at learning. D. There is only one species of finch on those islands. So which one would be the answer? Does anyone know? I need help ASAP Pleaseee!!!! And Thank you
_____________ and __________ are the components of ribosomes. A) DNA and RNA B) RNA and protein C) Ribose and amino acids D) Microfilaments and microtubules
Which one of the following statements is true regarding voluntary and involuntary responses? A. Voluntary responses control the activity of glands. B. Voluntary responses originate in the sensory receptors. C. Involuntary responses are part of the autonomic system. D. Involuntary responses may include the spinal cord and not the brain.
Unlike ionic bonds, covalent bonds involve the a. development of positively and negatively charged ions. b. sharing of electrons between atoms. c. gain of one or more electrons by one atom from another. d. loss of one or more electrons from one atom to another.machinery
Neurons are not connected; they transmit signals across a space called a _____. dendrite axon synapse impulse
Cells produced by the root and shoot tip meristems become the tissues of the plant body. primary secondary
What type of questions cannot be solved by scientific method? A. Questions about ethics B. Questions about extinction species C. Questions about the deep ocean D. Questions about the past
Which of the following plant adaptations protects savanna plants from grazers? a. Long roots B. Growing low to the ground C. Water storage D. Bitter taste
Describe the role of photosynthetic organisms, such as plants, in converting the energy of light to energy that can be used by all living things including the photosynthesizers themselves. Be sure to follow the flow of energy from the sun to living things.
Magma that forces across rock layers hardens into a a. sill. b. volcanic neck. c. dike. d. batholith.
Why is the scientific method described as nonlinear a.The steps of the scientific method are repeated in a cycle. b.Scientists often repeat one or more steps several times. c.Sometimes scientists forget to perform some of the steps. d.The steps can be performed only once but in any order.