ATI TEAS Science Practice Test Advanced Answer 2024/2025.

Which of the following is characteristic of the human organism? - correct answer heterotrophic with a genome stored in DNA Which of the following options represents the chromosomal composition of a normal zygote? - correct answer 46 chromosomes Ca + H₂SO₄ --> ?? - correct answer Calcium Sulfate Which of the following organs is the site of blood filtration? - correct answer kidney Which of the following organ systems is responsible for transporting nutrients, wastes, and other substances throughout the human body? - correct answer circulatory Positive feedback example - correct answer Oxytocin causes an increase in uterine muscle contractions, ultimately causing the posterior pituitary to release more oxytocin Weeds A and B grow next to each other. The roots of Weed A stop growing when they enter the root zone of Weed B. Since activated charcoal is known to absorb organic compounds, activated charcoal is applied to soil around Weed B. Weed A then grows into root zone of Weed B. What hypothesis is being tested by the addition of activated charcoal to the soil? - correct answer Weed B produces organic compound that inhibits root growth for Weed A In a well-controlled experiment, researchers show that a common topical antibiotic called chloramphenicol halts a deadly fungal growth on the skin of amphibians. Which of the following is the best inference for how the antibiotic works to limit a fungal disease? - correct answer The antibiotic kills a bacterial partner that is essential in the fungal infection The bands in muscle sarcomere are formed by actin and which of the following other proteins? - correct answer myosin Which of the following observations refutes the hypothesis that characteristics acquired during the parents' lifetime are inherited by offspring? - correct answer changes in neck length in giraffe populations are due to genetic mutations Which of the following chemical compounds prevents the lungs from collapsing? - correct answer surfactants (lipopolysaccharides that have a hydrophobic and hydrophillic layer. They keep the lung inflated) Type I diabetes is a disease associated with which of the following hormones? - correct answer insulin Unlike skeletal muscle, cardiac muscle is highly resistant to lactate-mediated fatigue because cardiac muscle...? - correct answer uses aerobic respiration in mitochondria for energy The nephridium in worms has a function most similar to which of the following organs in humans? - correct answer kidney Which of following connects two bones together? - correct answer ligament which of the following cell types provide a waterproofing function for the outer layers of skin? - correct answer keratinocytes The shape of villi and microvilli facilitate which of the following? - correct answer increasing surface area for absorption Which of the following arteries directly supplies oxygenated blood to the reproductive system? - correct answer gonadal artery A person is suddenly frightened. Which of the following reactions occurs next? - correct answer liver cells release glucose into the blood stream On an imaginary planet called Alpha Vega, purple eyes (F) are dominant over pink eyes (f). Which of the following combinations will produce only offspring with pink eyes? - correct answer ff x ff The use of an electron microscope would most benefit the study of... - correct answer the structure of cellular organelles Which of the following are sesamoid bones? - correct answer patellae (considered short bones) Which of the following glands is the primary producer of insulin? - correct answer pancreas Which of the following glands primarily supplies hair shafts and skin with oily secretions? - correct answer sebaceous glands A pregnant woman who is a chain smoker has just been diagnosed with lung cancer. His biggest concern is if she has passed on the lung cancer to her child. Which of the following statements is correct regarding this situation? - correct answer The cancer will not be transmitted to the child. Only germline mutations are transmitted, so the lung cancer, a somatic mutation will not be passed to the child. Demyelinization results in which of the following? - correct answer disrupted propagation of an action potential along the axon of a nerve cell Which of the following is the function of the lymph nodes in mammals? - correct answer filter debris from intracellular spaces Which of the following structures diverts food into the esophagus, and prevents it from entering the lungs? - correct answer epiglottis In Mendelian inheritance, the dominant allele is for tall plants and the recessive allele is for short plants. Which of the following statements is correct in terms of phenotype and genotype? - correct answer The T allele are both genotypes for the tall plant phenotype Which of the following structures within a human cell is responsible for recycling the materials no longer functional or needed within the cell? - correct answer lysosome In a population that is growing, which of the following must be true? - correct answer immigrants + births > emigrants + deaths Which of the following substances will dissolve in water? - correct answer CH₃OH Which of these terms related to the respiratory system refers to the "voice box" for sound production? - correct answer larynx Kidneys remove which of the following from the blood? - correct answer salts Which of the following is classified as a flat bone? - correct answer rib Which of teh following cell types is responsible for the production of soluble antibodies? - correct answer B-cell