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Which of the following correctly orders structures from simple to complex?

A. Organs, tissues, cells, atoms

B. Cell, tissues, atoms, organs

C. Atoms, organs, tissues, cells

D. Atoms, cells, tissues, organs

Answer Explanation:

Rationale

Atoms are the smallest and most basic units of matter, and they can combine to form molecules. Cells are the basic units of life, and they are made of molecules. Tissues are groups of cells that work together to perform a specific function, such as muscle tissue or nerve tissue. Organs are collections of tissues that form a larger structure.

Therefore, the Correct Answer is D.

More Questions on TEAS 7 Science

  • Q #1: The "gray matter of the brain is largely made up of which of the following?

    A. Neuron cell bodies

    B. Meninges

    C. Neuron cell axons

    D. Corpus callosum

    Answer Explanation

    The gray matter of the brain primarily consists of neuron cell bodies, along with dendrites, glial cells, and unmyelinated axons. It appears gray because it lacks the white fatty myelin sheath that covers many nerve fibers.

  • Q #2: Which of the following tools can be used to measure the turbidity of a liquid by measuring the transmission of light through the sample?

    A. Spectrophotometer

    B. Centrifuge

    C. Electro photometer

    D. Microdensitometer

    Answer Explanation

    A spectrophotometer is an instrument that measures the intensity of light absorbed after it passes through a sample solution. With the spectrophotometer, the concentration of a chemical substance can be determined by measuring the intensity of light detected.

  • Q #3: Which of the following hormones regulates blood calcium levels?

    A. Parathyroid hormone

    B. Growth hormone

    C. Norepinephrine

    D. Melatonin

    Answer Explanation

    The parathyroid hormone (PTH) from the parathyroid glands is important in serum calcium regulation. It increases blood calcium levels by stimulating osteoclasts to break down bone and release calcium into the bloodstream. PTH also enhances the absorption of calcium from the intestines and the kidneys.