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100
Which of the following structure is where cellular respiration occurs in the cell below?
Mitochondria
100
There are some similarities between prokaryotic and eukaryotic cells. Name structures found in both prokaryotic and eukaryotic cells?
ribosome, DNA
100
Hitchhiker's thumb (H) is dominant to no hitchhiker's thumb (h). A woman who does not have hitchhiker's thumb marries a man who is heterozygous for hitchhiker's thumb. What is the probable genotypic ratio of their children?
2:2 50%hh:50%Hh
100
A human baby boy inherits a recessive allele from his mother. In which circumstance would he most likely show the trait coded for by the recessive allele?
The allele is on the X chromosome or Dad also has recessive gene
100
describe meiosis.
It occurs only in cells in the reproductive structures of organisms. It produces 4 haploid daughter cells All daughter cells are genetically different from each other and parents.
200
A team of ecologists observed feeding patterns of several populations in the desert. The energy pyramid shown below depicts the feeding patterns the ecologist observed. Explain the difference in the amount of available energy in the trophic levels of the desert ecosystem?
There is less available energy in the fourth trophic
200
Which cell structure is correctly paired with its primary function? -ribosome =protein synthesis -mitochondrion= movement - vacuole =cell division -nucleus= storage of nutrients
ribosome =protein synthesis
200
A biologists compares how different ecosystems undergo succession. She divides the series of events that happen during primary and secondary succession into three different stages. Which feature might be used to distinguish secondary succession from primary succession?
the presence of soil and organic matter in the first stage.
200
If 20% of a DNA sample is made up of thymine, T, what percentage of the sample is made up of cytosine, C?
30%
200
Baby food manufacturers sometimes use proteases in their products. Proteases catalyze the breakdown of the proteins in these foods, making digestion easier for infants. Proteases are what type of molecule?
enzyme
300
You have been studying population growth of a species of Paramecium, a single celled organism for 18 days. Your data are shown in the graph below. Food was occasionally added to the test tube in which the paramecia were grown. According to the diagram, what is the carrying capacity of the test-tube environment as long as food is added?
About 65 55-70 range accepted
300
Joy took the notes shown below while learning about cells. • Forms boundary between a cell and the outside environment • Controls the movement of materials into and out of the cell • Consists of double layer of phospholipids She forgot to write the name of the cell structure that her class was studying that day. What structure is described in her notes?
Cell Membrane
300
The common brushtail possum is a marsupial native to Australia. This possum was introduced to New Zealand where it had no natural predators and had an abundant food supply. Which of these likely occurred a few years after the introduction of this possum to New Zealand?
The possum population grew to a larger size
300
What are 5 types of mutations?
Missense Nonsense Insertion Silent Deletion
300
In living organisms, lipids function mainly as:
Sources of stored energy and components of cellular membranes
400
Scientists have found evidence that about 2.4 million years ago a gene regulating jaw muscles mutated and may have led to the more graceful human jaw we see today. The diagram below shows the skulls of 3 hominid species. Which statement below most closely explains the link between jaw size and hominid evolution?
The jaws of hominids evolved to be smaller and less protruding over time
400
Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?
Water has a high heat capacity
400
Coyotes are opportunistic predators that are found throughout most of North America. They typically feed on small mammals, insects, and fruits and vegetables. They are known for their dietary adaptability. The best description of their role in the food web would be:
An omnivore
400
Using Biology terms and what we learned about Cancer, write a description that best describes cancer?
Uncontrolled cell growth caused by mutations in genes that control the cell
400
Resistance to antibiotics results from variations in the genetic code of Streptococcus pneumoniae. Which type of molecule encodes genetic information in Streptococcus pneumoniae?
nucleic acid
500
Which of the following phases of mitosis is represented by the diagram below?
metaphase
500
Many of the proteins in the human body are enzymes that catalyze chemical reactions. What is the relationship between enzymes and activation energy?
When an enzyme catalyzes a reaction, it decreases the activation energy of the reaction.
500
In which way are photosynthesis and cellular respiration different? In terms of gas.
Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.
500
Define what a mutation is.
permanent change in the DNA (it does not get fixed) They can go unnoticed, be harmful or helpful.
500
Which macromolecule makes up the majority of the cell membrane?
Lipid