View All Introduction-to-Biology Actual Exam Questions Answers and Explanations for Free Sep-2026 [Q46-Q66]

QUESTION 46
Caribou dig through snow to find food. Afterward, arctic foxes use the fresh holes to search for their own food. What interaction occurs?

QUESTION 47
During which stage of meiosis dohomologous pairsof chromosomesseparate from each other?

QUESTION 48
Through which process does information flow fromRNA to protein?

QUESTION 49
Glycolysis yields a net of two ATP molecules produced by phosphorylation. Which statement about the energy transformationin this process is true?

QUESTION 50
A horticulturalist crosses twopinkcarnations. Flower color showsincomplete dominance: red × white # pink heterozygotes. The observedphenotype ratio is 2:1:1. Which color ordering corresponds to this ratio?

QUESTION 51
Which statement istrueofmeiosis?

QUESTION 52
Which statement correctly describes the flow of information duringgene expression?

QUESTION 53
A species of fish can have dominantred fins (R)or recessivewhite fins (r), and dominantlong fins (L)or recessiveshort fins (l). In adihybrid cross, each parent isheterozygousfor both traits (RrLl × RrLl). How manydifferent gamete genotypescan each parent produce?

QUESTION 54
What is a necessaryinputto begin the process ofcellular respiration?

QUESTION 55
In a species wherewhite fur (W)is dominant toblack fur (w), you cross twoheterozygousindividuals (Ww × Ww). What is the probability that an offspring will havegenotype Ww?

QUESTION 56
Which chromosomal set shows an abnormality most commonly associated with agenetic disorder?

QUESTION 57
The Mojave Desert is hot and dry. Roadrunners (endothermic, ground-dwelling birds) already have adaptations that reduce daytime heat gain. If average temperatures rise as predicted, how is theirplumagemost likely to change under natural selection?

QUESTION 58
Refer to the diagram “Arctic Marine System Components.”

Which components in the figure areabiotic?

QUESTION 59
Mangroves shelter many species. Pelicans and herons both feed on small invertebrates and fish. What type of interaction do pelicans and herons share?

QUESTION 60
Which comparison ofDNA and RNAis correct?

QUESTION 61

Using theTetrapod Cladogram (Node E), the common ancestor at locationEgives rise to which two organisms?(Choose 2 answers)

QUESTION 62
A subatomic particle is located in theoutermost shellof an atom. Because of its position, it strongly influences the atom’sreactivity. What is this particle?

QUESTION 63
A molecule doesnotdissolve in water and consists ofglycerol covalently bound to three fatty acid tails.
What is the primary function of this molecule?

QUESTION 64
Arctic foxes sometimes follow polar bears and scavenge leftovers after the bears finish eating. What interaction occurs?

QUESTION 65
The leopard seal is part of an Antarctic food web. It feeds oncod, which feed on small aquatic plants. Based on the energy transfer in the exhibit, how much energy does the leopard seal receive by feeding on cod?

QUESTION 66
Cells use ATP to power muscle contraction. During contraction, ATP is converted to ADP and inorganic phosphate. What is happening to energy in this conversion?