QUESTION 2 These are the Biological terms you need to know for this task.
Biological Term
Pour plate Aseptic
Method
Aseptic Method
Meaning
Means counting the number of colonies of bacteria found in
a liquid after it was injected with sterile (clean) inoculum.
To grow bacteria, we are studying without contaminating it
with other living organisms.
A substance injected into the body to increase the body's
resistance to a disease.
Growing micro-organisms example bacteria for scientific study or
medicinal use.
Kept warm to allow for growth.
Inoculum
Culture
Incubated
An investigation was set up by Gr.11 learners to evaluate the effectiveness of
different antibiotics in inhibiting (preventing) bacterial growth.
The procedure was as follows:
e
A pour plate culture of the bacterium Bacillus subtilis was prepared according to
the aseptic method, using nutrient agar as the growth medium.
A fixed amount of inoculum is placed in the centre of a sterile petri dish.
A ring of eight discs (1 to 8) was then placed on the inoculated culture,
Each of the discs 2 to 8 contained a different antibiotic.
Disc 1 had no antibiotic.
The plate was incubated for 48 hours at 35°C.
The diagram below shows the results obtained after the incubation period. Draw a bar graph to represent the total number of cases and the total number of deaths per month​

In a hypothetical breed of dogs, coat color is controlled by two genes. there are six different coat colors in this breed: black, brown, cream, gray, silver, and tan. consider the following crosses. cross 1: black females from a lineage of all black dogs are crossed with brown males from a lineage of all brown dogs. f1 males and females are all black. when f1 are intercrossed, f2 males and females are black or brown. cross 2: black females from a lineage of all black dogs are crossed with tan males from a lineage where all males are tan and all females are cream. f1 males are black, f1 females are gray. when f1 are intercrossed, f2 males and females are black, brown, gray, or tan. cross 3: silver females from a lineage where all females are silver and all males are gray are crossed with brown males from a lineage of all brown dogs. f1 males and females are all gray. when f1 are intercrossed, f2 males are black, brown, gray, or tan, f2 females are cream, gray, silver, or tan. select the correct statements regarding the mode of inheritance of the coat color genes. a) both genes are x-linked. b) both genes are autosomal. c) one of the genes modifies the expression of the other gene. d) each gene has an additive effect on the intensity of coat color. e) each gene independently specifies three colors. f) one of the genes is autosomal, and the other is x-linked.

Astore manager timed janette to see how long it would take her to fold and put away a sweater, a shirt, a pair of pants, and a scarf. it took her 26.1 seconds for the shirt, 24.3 seconds for the sweater, 32.8 seconds for the pants, and 18.2 seconds for the scarf. what was the average time it took janette to fold and put away all four items? during a catered lunch, an average of 4 cups of tea are poured per minute. the lunch will last 2 hours. how many gallons of tea should the caterer bring if there are 16 cups in one gallon?

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls