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TEAS 7 Science TEAS 7 Practice Exam 4 Which of the following is a mass within ...

Which of the following is a mass within the ovary that secretes hormones to maintain the uterine lining during pregnancy?

A. Oviduct

B. Corpus luteum

C. Oocyte

D. Umbilical cord

Answer Explanation:

Corpus luteum. The corpus luteum is a temporary structure that forms from the ruptured follicle after ovulation. It produces progesterone, which is a hormone that prepares the endometrium (the inner lining of the uterus) for implantation of a fertilized egg. If pregnancy occurs, the corpus luteum continues to secrete progesterone until the placenta takes over. 

Corpus Luteum (Cleveland Clinic) 

Therefore, the Correct Answer is B.

More Questions on TEAS 7 Science

  • Q #1: Which of the following best describes the result of using a catalyst in a chemical reaction?

    A. The reaction is completed in a shorter amount of time.

    B. The yield of product is increased.

    C. A greater amount of heat energy is released by the reaction.

    D. A more desirable product is often formed.

    Answer Explanation

    A catalyst is a substance that lowers the activation energy of a chemical reaction, which means that it allows the reaction to proceed faster without being consumed or changed itself. A catalyst does not affect the equilibrium of a reaction, so it does not change the amount or the type of product that is formed.

  • Q #2: Which of the following are used to determine a person's DNA sequence?

    A. Enzymes

    B. Blood types

    C. Genes

    D. Hormones

    Answer Explanation

    Genes are used in techniques like DNA sequencing to determine a person's DNA sequence. DNA sequencing involves determining the order of nucleotides (A, T, C, and G) in a DNA molecule. Genes are used to replicate and amplify DNA segments, allowing researchers to analyze the sequence of nucleotides present in a person's DNA

  • Q #3: Which of the following can lead to a tsunami?

    A. Lightning strikes

    B. Flooding

    C. Earthquakes

    D. Sunspot activity

    Answer Explanation

    A tsunami is a series of large waves that are caused by the displacement of a large volume of water in the ocean or a large lake. The most common cause of tsunamis is earthquakes, which can generate seismic waves that travel through the water and create sudden changes in water level.

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