bio
The kidney of a dolphin is considered an organ because it is composed of different
tissues.
The figure below represents the formation of a ________ by the process of ________Blank.
triglyceride; dehydration synthesis
Sugar dissolves in coffee because
water is a good solvent.
Which of the following classification categories for humans is correct?
Homo: genus
How does a strong acid differ from a weak acid?
A weak acid dissociates only partially in water.
Hydrolysis of maltose, a disaccharide, results in
two monosaccharides.
Alpha helix and beta pleated sheet are characteristic of
secondary structure in proteins.
The principle role for sugars in living things is to
serve as a form of immediate cellular energy.
Which of the following correctly lists the classification categories from most to least inclusive?
species, genus, family, class, order, domain, phylum, kingdom
he number of neutrons present in the nucleus of an average atom of any given element is best estimated by
subtracting the number of protons from the mass number.
Which of the following statement(s) is not a true statement with respect to scientific theory?
Theories are accepted explanations for how the world works.
How are lipids different from other categories of biological molecules?
They are hydrophobic.
Which of the following statement(s) regarding genes is/are true?
Variations in genes are the result of mutations.Variations in genes are the result of mutations. Correct
Which of the following levels of biological organization is correctly matched with an example?
a tropical rain forest with rain, sunlight, trees, insects, and animals - ecosystem
A gene is the code for assembling a sequence of
amino acids.
All atoms of the same element have the same
atomic number.
The scientific method
begins with observations.
The four main categories of organic macromolecules are
carbohydrates, lipids, proteins, and nucleic acids.
Select the correct association.
carbohydrates—include glucose, sucrose, and starch
A triglyceride is formed when three fatty acids join a glycerol by
dehydration synthesis reactions.
An atom's valence electron shell
determines its chemical reactivity.
Which of the following levels of organization include the physical environment
ecosystem
In science, a theory
encompasses many hypotheses.
An atom with a neutral charge has
equal numbers of protons and electrons
Is the following statement true or false? All single-celled organisms are prokaryotes.
false, because some eukaryotes are single-celled
Is the following statement true or false? The scots pine (Pinus sylvestris) and the black pine (Pinus nigra) belong to the same species.
false, because the specific epithet is different
In general, evolutionary processes lead to organisms that
function well in a given environment.
Humans store glucose in the form of
glycogen
If a material mixes readily with water, it is identified as
hydrophilic.
The type of bond that would form from the transfer of an electron from one atom to another is a(n) ________Blank bond.
ionic
In sickle-cell disease, malformation of red blood cells
is caused by only one error in the genetic code for hemoglobin.Correct
Which of the following can be categorized as prokaryotic?
kingdom Animalia
Which of the following correctly lists the parts of a nucleotide of RNA?
nitrogen-containing base, ribose, phosphate
A saturated fat has
no double bonds.
Which nitrogen-containing base is found in DNA but not in RNA?
thymine
Based on the evolutionary tree of the three domains, which of the following statements is true?
All three domains have a common ancestor.
Which of the following is a property of bases?
Bases feel slippery when touched.
Which of the following elements are found in glucose?
C, H, O
Deoxyribose is a sugar found in
DNA
Which of the following is a true statement about proteins?
Proteins are used to produce many types of hormones.
Which kingdom includes both unicellular and multicellular organisms?
Protista
Wood and paper are composed of
cellulose.
Phylum Mollusca is broken into subgroups which include both Cephalopoda (e.g., squid and octopus) and Bivalvia (e.g., clams and mussels). As a result, Cephalopoda and Bivalvia most likely belong to which classification category?
class
When populations of different types of organisms interact in a given area, they comprise a(n)
community.
Sucrose, C12H22O11, is best described as a(n)
compound
All the chemical reactions that occur in a cell are collectively called
metabolism.
Living organisms must constantly take in energy in order to power functions necessary to remain alive. All of the chemical reactions that involve energy conversions within a cell are called
metabolism.
In a dehydration reaction, _____ In order for this to occur water is _____
monomers are joined to become a polymer; removed
Elements that differ in their _____ are known as isotopes.
neutron number
Scientists were studying if white-nosed syndrome is responsible for the deaths of millions of American bats. Scientists hypothesized that white-nose syndrome, caused by the fungus Pseudogymnoascus destructans, makes bats die by increasing the amount of energy they use during winter hibernation. What would be the best control group for this study
non-infected male and female bats hibernating in America
Scientists were studying if white-nosed syndrome is responsible for the deaths of millions of American bats. Scientists hypothesized that white-nose syndrome, caused by the fungus Pseudogymnoascus destructans, makes bats die by increasing the amount of energy they use during winter hibernation. What would the test group be in this experiment?
non-infected male and female bats hibernating in Europe
The polymer shown below is comprised of what kind of subunits?
nucleotides
Which answer choice lists the steps of the scientific method in the correct order?
observation, hypothesis, prediction, experiment, conclusion
Which of the following correctly lists the levels of biological organization from most complex to simplest?
organism, organ system, organs, tissues, cells
Starch is a _made of many _____
polymer; glucose molecules
Which of the following is in correct order from largest to smallest?
polypeptide - dipeptide - amino acid
Which word should be categorized separately from the others?
glycogen
Organisms that transform solar energy into chemical energy are called
producers.
For metabolic processes to occur within their cells, all living organisms need to maintain homeostasis which means they need
to maintain the correct internal temperature, moisture level, and acidity as well as other factors.