Answer the following question given this paragraph: Christopher Auyeung, using bat image by User:Rugby471/Wikimedia Commons. Bats use echolocation to identify the location of objects . CC BY-NC 3.0 (bat image available under public domain). Q: What do bats use to determine the location of objects? Choices: - infrared light - UV light - syncopation - echolocation A:
echolocation
(Question)
Answer the following question given this paragraph: The iris is the colored part of the eye. It controls the size of the pupil. Q: What part of the eye controls the size of the pupil? Choices: - debis - lens - avis - iris A:
(Answer)
iris
Ques: Answer the following question given this paragraph: The majority of mammals are placental mammals. These are mammals in which the developing baby is fed through the mother's placenta. Female placental mammals develop a placenta after fertilization. A placenta is a spongy structure that passes oxygen, nutrients, and other useful substances from the mother to the fetus. It also passes carbon dioxide and other wastes from the fetus to the mother. The placenta allows the fetus to grow for a long time within the mother. Q: What structure passes oxygen and nutrients to a growing fetus in mammals? Choices: - uterus - spinal cord - vas deferens - placenta A:
Ans: placenta
(Q).
Answer the following question given this paragraph: Brain Stem The midbrain and hindbrain (composed of the pons and the medulla) are collectively referred to as the brain stem (Figure 13.12). The structure emerges from the ventral surface of the forebrain as a tapering cone that connects the brain to the spinal cord. Attached to the brain stem, but considered a separate region of the adult brain, is the cerebellum. The midbrain coordinates sensory representations of the visual, auditory, and somatosensory perceptual spaces. The pons is the main connection with the cerebellum. The pons and the medulla regulate several crucial functions, including the cardiovascular and respiratory systems and rates. Q: What part of the brain is attached to the brain stem but considered a separate region of the adult brain? Choices: - parietal lobe - temporal lobe - frontal lobe - cerebellum A:
(A).
cerebellum
Ques:Answer the following question given this paragraph: Bicarbonate Bicarbonate is the second most abundant anion in the blood. Its principal function is to maintain your body's acid-base balance by being part of buffer systems. This role will be discussed in a different section. Bicarbonate ions result from a chemical reaction that starts with carbon dioxide (CO2) and water, two molecules that are produced at the end of aerobic metabolism. Only a small amount of CO2 can be dissolved in body fluids. Thus, over 90 percent of the CO2 is converted into bicarbonate ions, HCO3, through the following reactions:. Q: Bicarbonate is the second most abundant anion in the blood. its principal function is to maintain your body's acid-base balance by being part of these? Choices: - curb systems - stream systems - compound systems - buffer systems A:

Ans:buffer systems
Ques:Answer the following question given this paragraph: The properties that chemists use to describe matter fall into two general categories. Physical properties are characteristics that describe matter. They include characteristics such as size, shape, color, and mass. Chemical properties are characteristics that describe how matter changes its chemical structure or composition. An example of a chemical property is flammabilitya material's ability to burnbecause burning (also known as combustion) changes the chemical composition of a material. Q: What type of properties are characteristics that describe matter? Choices: - visible - thermal - invisible - physical A:

Ans:
physical