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3 years ago

Which of the following is an example of convenience sampling?

Biology

2 answers:

Harlamova29_29 [7]3 years ago

7 0

Obviously is B ! :,D

lara31 [8.8K]3 years ago

5 0

The correct answer is option B, that is, a dentist surveying patients about toothpaste preference.

Convenience sampling refers to the non-probability technique of sampling where the subjects are chosen due to their suitable availability and propinquity to the researcher. This type of sampling method is dependent upon the collection of data from the members of the population who are conveniently accessible to take part in the study.

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what would happen to all trophic levels in your choice of ecosystem (ocean, desert, etc) if an invasive species was introduced t

Serggg [28]

Answer:

1. Each trophic lvl would decrease in population.

2.The species will have to adapt by finding new food and most likely a new area to live if the invasive species is that bad.

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3 years ago

Lana is studying the deer that live in a forest. She concludes that all of the deer are members of the same

yKpoI14uk [10]

Lana concludes that all of the deer in a forest are members of the same (geosphere / ecosystem / species / hydrosphere) because they look alike and breed with one another. She observes how the deer (population / community / ecosystem / biosphere) interacts with trees, wolves, and other living things of the forest (population / community / species / geosphere).

Answer:

1. Species

2. population

3. community

Explanation:

Given the available options. Here is the correct or full text that matches with the correct meanings.

Lana is studying the deer that lives in a forest. She concludes that all of the deer are members of the same SPECIES because they look alike and breed with one another. Next, she observes how the deer POPULATION interacts with trees, wolves, and other living things of the forest COMMUNITY

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3 years ago

At the back of the brain is the __________ which is primarily responsible for processing information about light and movement

insens350 [35]

Answer:

Cerebellum

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6 0

3 years ago

Read 2 more answers

In cats, curled ears result from an allele, Cu, that is dominant over an allele cu, for normal ears. Black color results from an

just olya [345]

Answer:

Explanation:

Cross : ggCuCu X GGcucu --------Parents

F1 progeny : GgCucu

Two of the F1 cats mate :

Cross : GgCucu X GgCucu

Gametes :

Gg X Gg = GG, Gg, Gg, gg

Cucu X Cucu = CuCu, Cucu, Cucu, cucu

1/4 GG X 1/4 CuCu = 1/16 GGCuCu (black - curled ears)

1/4 GG X 2/4 Cucu = 2/16 GGCucu (black - curled ears)

1/4 GG X 1/4 cucu = 1/16 GGcucu (black - normal ears)

2/4 Gg X 1/4 CuCu = 2/16 GgCuCu (black - curled ears)

2/4 Gg X 2/4 Cucu = 4/16 GgCucu (black - curled ears)

2/4 Gg X 1/4 cucu = 2/16 Ggcucu (black - normal ears)

1/4 gg X 1/4 CuCu = 1/16 ggCuCu (gray - curled ears)

1/4 gg X 2/4 Cucu = 2/16 ggCucu (gray - curled ears)

1/4 gg X 1/4 cucu = 1/16 ggcucu (gray - normal ears)

Answer : (i). 9/16 black cats, curled ears; 3/16 black cats, normal ears; 3/16 gray cats, curled ears; and 1/16 gray cats, normal ears.

An F1 cat mates with a stray cat that is gray and possesses normal ears :

Cross : GgCucu X ggcucu

Gametes :

Gg X gg = Gg, Gg, gg, gg

Cucu X cucu = Cucu, Cucu, cucu, cucu

2/4 Gg X 2/4 Cucu = 4/16 GgCucu (black - curled ears)

2/4 Gg X 2/4 cucu = 4/16 Ggcucu (black - normal ears)

2/4 gg X 2/4 Cucu = 4/16 ggCucu (gray - curled ears)

2/4 gg X 2/4 cucu = 4/16 ggcucu (gray - normal ears)

Answer : (i). 1/4 black cats, curled ears; 1/4 black cats, normal ears; 1/4 gray cats, curled ears; 1/4 gray cats, normal ears.

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4 years ago

For each statement below, indicate if it is TRUE or FALSE and explain why. (a) All highly conserved stretches of DNA in the geno

Nookie1986 [14]

all statements appear to be true

4 0

4 years ago