Mrs.Decker Human Bio A Final
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| cells in the body that can divide repeatedly and become other types of cells are called | stem cells
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| the layer of cells that protects the body from dehydration are called | epithelial tissue
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| the heart and lungs are protected by the | rib cage
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| the structure that is not part of the axial skeleton is the | pectoral girdle
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| compact bone contains tightly packed | oseteocytes
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| in an embryo, the skeleton is originally made of | cartilage
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| this is not moved by muscle tissue | signals in the brain
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| the functional unit of muscle contraction is called the | sarcomere
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| blood, bone, and cartilage are examples of | connective tissue
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| the skin is made up of | epithelial tissue
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| from the smallest functional units to the largest, the body is organized as follows | cells, tissues, organs, systems
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| if homeostasis were disrupted, all of the following would occur EXCEPT | the heart would immediately stop pumping blood
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| a person with a broken pelvic bone would probably be unable to | walk or run
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| smooth muscles can be found | in internal organs
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| tendons are bands of tissue that connect | muscles to bones
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| the thin outer layer of the skin is | the epidermis
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| the skin performs all of the following except | production of gametes
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| which structure enables the skin to receive nutrients, eliminate wastes, and regulate body temperature? | blood vessels
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| which of the following is the main function of sweat glands? | regulating body temperature
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| which best describes keratin | a strong, fibrous protein
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| sperm and eggs are both | haploid
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| what is part of the cell theory | cells are the basic units of structure and function in organisms
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| which structure acts as a boundary between the outside environment and the inside of the cell | structure 4
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| all living things are made of | carbon
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| the scientific study of heredity is called | genetics
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| molecules of DNA are composed of long chains of | nucleotides
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| the amount of guanine in an organism always equals the amount of | cytosine
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| during DNA replication, a complementary strand of DNA is made from each original DNA strand. Thus, if a portion of the original strand is CCTAGCT, then the new strand will be | GGATCGA
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| what is not found in RNA | uracil
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| during transcription, the genetic information for making a protein is "rewritten" as a molecule of | messenger RNA
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| covalent bonds form when | two hydrogen atoms share electrons with one oxygen atom
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| sharing of electrons in the outer energy levels of two atoms | makes both atoms stable
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| the building blocks of most biomolecules contain the element | carbon
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| which molecules are most closely related to proteins | amino acids
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| which molecules are most closely related to nucleic acids | nucleotides
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| what is not part of a nucleotide in a DNA molecule | three phosphate groups
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| a cell contains | thousands of different kinds of enzymes, each assisting in a different chemical reaction
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| which is true of both DNA and some proteins | must be kept separate from cytoplasm
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| what do chloroplasts and mitochondria have in common | production of ATP
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| what level of organization is the small intestine | organ
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| the difference between anaphase of mitosis and anaphase I of meiosis is that | chromatids do not separate at the centromere in anaphase I
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| when an individual heterozygous for a trait is crossed with an individual homozygous recessive for the trait, the offspring produced will | all have the same genotype
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| this is not moved by muscle tissue | signals in the brain
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| a muscle causes a bone to move by | pulling on the bone
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| during light exercise, muscle cells produce ATP by a process that | requires a lot of oxygen
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| the skin DOES NOT perform | production of gametes
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| one characteristic of the dermis of the skin is that it is | involved in temperature regulation
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| in which of the following ways are mature human sperm and egg similar | they both have the same number of chromosomes in their nuclei
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| ovary:egg production:: | testis:sperm production
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| what occurs during the fetal period | the fetus's blood absorbs oxygen and gets rid of carbon dioxide through the placenta
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| the skin is made up of | epithelial tissue
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| organs that work together form | organ systems
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| the heart and the blood vessels are separate organs that form the | circulatory system
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| the point where two or more bones meet is called a | joint
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| tendons are bands of tissue that connect | muscles to bones
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| muscle cells get the energy needed to contract from | ATP
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| which of the following is a skin disorder that results from the blockage of oil glands | acne
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| the testes produce | sperm
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| production of sperm and testosterone is regulated by luteinizing hormone and follicle-stimulating hormone, which are produced by the | pituitary gland
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| a sperm cell consists of a tail used for locomotion, and a head that contains ___________________, which helps the sperm cell penetrate an egg cell. | enzymes
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| the midpiece of a sperm cell contains many _______________, which supply sperm with the energy needed to propel themselves through the female reproductive system. | mitochondria
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| eggs are produced in the | ovaries
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| the entrance to the uterus is called the | cervix
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| if no embryo arrives after the uterus has prepared to receive it, | the lining of the uterus is expelled from the body in menstrual blood
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| menopause is the time at which | females cease to release eggs
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| the burrowing of an embryo into the uterine wall is known as | implantation
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| embryonic cells are organized into the major organ systems | by the end of the first trimester
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| pregnancy is often divided into three 3-month periods known as | trimesters
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| sexually transmitted diseases such as gonorrhea and chlamydia, which are caused by baceteria | can usually be treated with antibiotics
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