The concept that organisms who are the best suited to their environment will be the most successful
A. Natural Selection
B. Osmosis
C. Vestigial Structure
D. Homeostasis
A. Natural selection
These building blocks of proteins.
A. Fatty Acids
B. Amino Acids
C. Nucleotides
D. Monosaccharides
B. Amino acids
Which organisms have the most available energy in a food pyramid?
A. Primary consumers
B. Producers
C. Secondary Consumers
B. Producers
This cell part is considered the control center of the cell.
A. Nucleus
B. Cell Membrane
C. Ribosomes
A. Nucleus
The legs of crocodiles and cats have similar bone structures and develop in a similar way which indicates a common ancestor. What type of structures are the leg bones?
A. Homologous
B. Analagous
C. Vestigial
D. None of the above
A. Homologous structures
Step 1 of protein synthesis is called _______________.
A. Transcription
B. Translation
A. Transcription
A. Lipids
B. Enzymes
C. Nucleotides
A students observes a cell where the chromosomes appear to be pulled apart by spindle fibers. These final step whereby the cells officially splits into 2 cells.
A. Metaphase
B. Anaphase
C. Cytokinesis
C. Cytokinesis
A biomolecule that serves as a quick (short-term) source of energy?
A. Lipids
B. Nucleic Acids
C. Proteins
D. Carbohydrates
D. Carbohydrates
The outward physical appearance of a certain genotype is called the ______________.
A. Genotype
B. Allele
C. Phenotype
C. Phenotype
This RNA is transcribed from a section of DNA and later leaves the nucleus in order to be translated into an amino acid chain during protein synthesis.
A. tRNA
B. rRNA
C. mRNA
D. jRNA
C. mRNA
This system breaks food down into smaller molecules to be used for enregy.
Digestive System
Adenine always pairs with ______________.
A. Guanine
B. Cytosine
C. Thymine
C. Thymine
In a(n) ______________ solution water enters the cell and the cell swells.
A. Hypotonic
B. Hypertonic
C. Isotonic
A. Hypotonic
This rule states that in an energy pyramid only 10% of the energy is available to the next trophic level.
A. !0 % Rule
B. Homologous Chromosomes
C. Food Web
D. Food Chain
A. 10% Rule
Organs/parts many animals still have but are no longer used like the hip bone in a whale.
A. Homologous Structure
B. Vestigial Structure
C. Analagous Structure
B. Vestigial structures
This system transports nutrients and waste around the body.
Circulatory System
The ________________ filter nitrogenous waste out of the body.
A. Kidneys
B. Brain
C. Stomach
A. Kidneys
The ultimate source of energy is the __________.
Sun
____________ refers to the living things in an environment.
A. Biotic
B. Abiotic
A. Biotic
If there is 40% Adenine in DNA then there is _______ Thymine.
A. 40%
B. 70%
C. 20%
A. 40%
6CO2 + 6H2O + Sun —> C6H12O6 + 6O2
What is this the formula for?
The formula for photosynthesis
One of the functions of this system is blood formation.
The building blocks for DNA are called __________.
A. Amino Acids
B. Nucleotides
C. Fatty Acids
B. Nucleotides
Fertilization of an egg by a sperm, which are scientifically each referred to as _____________.
A. Meiosis
B. Gametes
C. Embryo
D. Mitosis, fetus
B. Gametes