100% verified correct answers
Which of the following organs transports semen through the penis? - Correct Answer
urethra
Which of the following describes the location of the heart relative to the lungs? - Correct
Answer anterior
The rectum is a part of which of the following organs? - Correct Answer large intestine
Which of the following types of variables is changed in a scientific experiment? - Correct
Answer independent variable
Which of the following type of reactions is shown below?
CaCl2 + 2NaOH → Ca(OH)2 + 2NaCl - Correct Answer double replacement
Which of the following is NOT part of the innate immune system? - Correct Answer
antibodies
Which of the following is NOT a function of the respiratory system in humans? - Correct
Answer to distribute oxygen to the rest of the body
Which of the following processes occurs in red bone marrow? - Correct Answer
hematopoiesis
Which of the following parts of the nervous system is protected by the vertebral column?
- Correct Answer spinal cord
Which of the following is a monomer used to build carbohydrates? - Correct Answer
glucose
Which of the following terms describes a conclusion reached on the basis of evidence
and reasoning? - Correct Answer inference
If a plant that is homozygous dominant (T) for a trait is crossed with a plant that is
homozygous recessive (t) for the same trait, what will be the phenotype of the offspring
if the trait follows Mendelian patterns of inheritance? - Correct Answer All offspring will
show the dominant phenotype.
Which of the following processes uses the information stored in RNA to produce a
protein? - Correct Answer translation
In the digestive system, the majority of nutrients are absorbed in which of the following
organs? - Correct Answer small intestine
Which of the following is the number of chromosomes found in a human gamete? -
Correct Answer 23
Which of the following is composed of a motor neuron and its associated muscle fibers?
- Correct Answer motor unit
Which of the following molecules can be found in abundance in a fatigued muscle? -
Correct Answer lactic acid
Which of the following processes produces a gas from a solid? - Correct Answer
sublimation
A student isolates and purifies a substance. She then puts it into the lab refrigerator at
4°C. When she comes back the next day, she notices that it has solidified. Which of the
following statements about the substance is true? - Correct Answer it has a freezing
point higher than that of water.
, Which of the following molecules experience London dispersion forces? - Correct
Answer all atoms and molecules
Which of the following is a heterogeneous mixture? - Correct Answer a mixture in which
the atoms or molecules are distributed unevenly
A woman has been suffering from heartburn and thinks that a particular food is causing
it. She decides that for each week during a single month, she will not eat a specific food
and see if she has heartburn that week. In her experiment, the food she removes from
her diet would be which of the following types of variable? - Correct Answer
independent variable
Which of the following is true of a gene that is expressed? - Correct Answer It is
influencing a phenotype trait.
Which of the following glands provides nourishment for sperm, as well as the majority of
the fluid that combines with sperm to form semen? - Correct Answer seminal vesicles
Which of the following does NOT correctly match the endocrine system organ with its
function?
hypothalamus: regulation of pituitary gland
pancreas: control of blood sugar through production of insulin and glucagon
testes: testosterone and estradiol production
pituitary: production and regulation of cortisol and adrenaline - Correct Answer pituitary:
production and regulation of cortisol and adrenaline
Which of the following parts of the peripheral nervous system controls voluntary muscle
actions? - Correct Answer the somatic nervous system
People who suffer from Type I diabetes are lacking function in which of the following
organs? - Correct Answer pancreas
How many electrons can the 2s orbital hold? - Correct Answer 2
Which of the follows describes what happens to the atomic radius when moving left to
right on the periodic table? - Correct Answer it decreases.
Which of the following correctly describes atomic number? - Correct Answer the number
of protons in an atom
Which of the following type of bone tissue gives bone its hardness and strength? -
Correct Answer cortical bone
According to electron theory, which of the following is the maximum number of bonds a
carbon atom can have? - Correct Answer Carbon has four valence electrons, which
means it is able to form 4 bonds with other atoms.
Which of the following is an example of human error in an experiment?
an imperfectly calibrated scale
contaminating a sterile sample by breathing on it
a draft in the laboratory slightly changing the temperature of a liquid
failure to account for wind speed when measuring distance traveled - Correct Answer
contaminating a sterile sample by breathing on it
What is the electron configuration of ground-state neutral magnesium (Mg)? - Correct
Answer 1s22s22p63s2
Mg has an atomic number of 12 on the periodic table. This means that ground-state
neutral Mg has 12 protons and 12 electrons. These 12 electrons are assigned to orbitals
in the order represented by the arrangement of the s-block and p-block on the periodic
table: 1s22s22p63s2.