In a class experiment, the strength of a neural stimulus and the resulting muscle contraction are ...
In a class experiment, the strength of a neural stimulus and the resulting muscle contraction are compared. A single motor neuron that synapses with a muscle fibre is suspended. The other end of the muscle fibre is attached to a mass. If an electrica
#26.Which of the following factors stabilizes population growth into an S-shaped curve? Select one: a. limited territory b. a lack of sunshine c. a depleting source of food d. a low number of predators
Six different one-drop samples in a Paramecium sp. population had the following
Six different one-drop samples in a Paramecium sp. population had the following numbers of organisms: 4, 6, 5, 3, 6, and 6. If 20 drops represent 1 mL of solution, and the volume of the solution is 40 mL, calculate the size of the population.
Miracle rice-Is the IR8 rice variety considered a genetically modified organism (GMO)? Why
Use the following information to answer the next four questions.
Miracle Rice Rice is staple food in Asia. In the 1950s, Asia faced food shortage and an impending famine. If you have relatives that lived in Asia during the ’50s and
Dinitrophenol (DNP) is a chemical that interferes with the production of ATP in both chloroplasts and mitochondria. In an attempt to identify the minimal concentration of DNP required to inhibit ATP production, DNP was applied to separate suspension
The Old Order Amish is a relatively small population of individuals found in the US ...
#32.The Old Order Amish is a relatively small population of individuals found in the United States in Pennsylvania and Ohio. They are a very isolated population due to their strong religious beliefs and lifestyle that have continued for more than 200
The processes labelled 1 and 2 in the diagram above represent (Bio 30)
1. The processes labelled 1 and 2 in the diagram above represent
a.exocytosis and attachment to cholinesterase b.exocytosis and attachment to a dendrite c.endocytosis and attachment to an axon d.endocytosis andd attachment t
A cell phone battery has 9.00×10–3 kWh of energy stored in it. If the battery runs at 3.20 V and draws an average of 0.375 A of current, how long will the battery last? Show your work, including formulae and substitutions and express your answer
Lab question from Biology 30 in Endrocrine System.
Question 1: Analyze the collected data, and interpret the results obtained.
Diploma Alert: Highlighted words have special meanings for the diploma exam. Questions using these words will be using the diploma interpretation. Please go t
The experimentally re-introduced grey wolf population of Idaho was 310 at the beginning of 2004. Ove
1- Suppose that sample of beef broth initially contains 16 bacterial cells. After 4.0 h, there are 1.6 x 106 bacterial cells in the sample. Calculate the growth rate of the bacterial population for the given time interval. (Record your answer in
Population growth and interactions questions 36&38
last 2 questions #36.The moose population in Northern Alberta is estimated to be around 11, 800. During the year, there were 5054 births, 4567 deaths, 25 immigrations and 52 emigrations. Calculate the per capita growth rate. Express you
Some singers are able to shatter a crystal chandelier with their voice, which illustrates
Some singers are able to shatter a crystal chandelier with their voice, which illustrates A) an echo. B) sound refraction. C) beats. D) resonance. E) interference.
A private company has developed a transgenic carrot that secretes its own pesticide. Therefore, this ...
A private company has developed a transgenic carrot that secretes its own pesticide. Therefore, this carrot is resistant to insects and worms that often damage root crops.
a) What are some of the risks and benefits that the Canadian governm
#13.A sample of raw ground beef initially contained 113 E. Coli bacteria. After six hours, there are 139,713 cells in the sample. What is the growth rate of the E. coli population? Express your answer using scientific notation in the form
Population growth and interactions question 10,11 and 12
#10.Water wisteria is an aquatic plant that is easy to care for and reproduces very quickly. A small man-made pond of 350 L contains 100 water wisteria plants. 20 new plants are introduced daily to the pond, while 75 plants are taken out once a week
1. Over 200 years ago, all of the peppered moths in a certain population were light-coloured. How could the first dark-coloured moth have occurred in the population? (Hint: How are new variations created in populations?)
Natural selection and Wildlife Corridor questions 9&10
#9. Natural Selection Natural selection allows only the better alleles to be passed onto the next generation. Do you agree or disagree with the above statement? Why or why not? State your position and provide two reasons to support
Use the following info in 15 to answer 15&16. 17&18 are both different questions
#15. Use the following information to answer the next two questions.
All Vulcans have pointed ears (P) and a right-sided heart (R) which are dominant over Earthling alleles of rounded ears (p) and a left-sided heart (r). Both Vulcans and
Bio 30-1 Population Genetics - Cystic Fibrosis Allele Frequencies
Cystic Fibrosis
Cystic fibrosis is an autosomal recessive disorder that affects 1 in 3 000 newborns with Caucasian background. It causes thick mucus build-up in various organs and can cause damages and problems in respiratory and digestiv
In garden pea plants, round seeds (R) are dominant to wrinkled seeds (r).
#22.In garden pea plants, round seeds (R) are dominant to wrinkled seeds (r). In an ideal pea plant population exhibiting Hardy–Weinberg equilibrium, 35 pea plants out of 92 have wrinkled seeds. Calculate the frequency of homozygous round pea plants
#19. In cattle, the polled, or hornless trait(P) is dominant over the horned trait(p)... #20
#19. In cattle, the polled, or hornless, trait (P) is dominant over the horned trait (p). In an ideal cattle population exhibiting Hardy–Weinberg equilibrium, 23 out of every 125 calves are horned. Calculate the frequency of the recessive allel
Population growth and interactions questions 23 and 25
#23.Which of the following factors does NOT determine a species’ biotic potential? Select one: a. the number of offspring per reproductive cycle b. the age of reproductive maturity and the age of death c. the life span of the indi
What is the correct sequence of colonizing plants on an area released from a retreating glacier?
#37.What is the correct sequence of colonizing plants on an area released from a retreating glacier? Select one: a. moss → lichen and bacteria → grasses b. grass → small plants → larger plants → forest c. weeds → shrubs → willows
What is the likely cause of the 98 tilt of Uranus's axis?
What is the likely cause of the 98 tilt of Uranus's axis? A) a collision with a large body early in the solar system's evolution B) distorted magnetic poles due to its large molten iron core C) fluid wave dynamics due to its large molten core D)
Use the following information to answer the next three questions.
#3. Bloom Syndrome Bloom syndrome is a rare genetic disorder. It is characterized by a short stature and a long narrow face with prominent nose and ears. There is also an increased sensitivity to light. People who have the disorder often develo
Population growth and interactions questions 6 8 9 help please confused :(
#6.Black-tailed prairie dogs used to be found in Alberta, but due to their destructive nature on farmland, the intensive efforts by ranchers and farmers to eradicate these animals has reduced the species to being found only in Saskatchewan. A fa
The winter food supply of buds from shurbs influences that stability of snowshoe hare populations. T
1. The winter food supply of buds from shurbs influences that stability of snowshoe hare populations. The available supply of "nutritious buds" is a/an a) density-independent limiting factor for snowshoe hare b) example of a
The structure labelled s is used for the synthesis of
The structure labelled s is used for the synthesis of A. ATP that is required for bonding the axon terminal to the receptor sites on the dendrite B. ATP that is required for the production of transmitter substances C. Carrier molecule
The force of gravity on a bowling ball rolling along a horizontal surface doesn't change its speed ...
The force of gravity on a bowling ball rolling along a horizontal surface doesn't change its speed because the force is A) small compared to the ball's weight. B) canceled by the normal force. C) perpendicular to its direction of motion. D) cance
