BIOLOGY HIGH SCHOOL

A researcher wants to test how diets A and B affect the weight loss of rabbits. She has 20 rabbits to use, but all of the rabbits are different sizes, which might affect how much weight they lose. The researcher decides to group the four smallest rabbits in one group, the next four smallest rabbits in another group, etc., until the final group has the four largest rabbits. Then, from each group she randomly selects two rabbits to have diet A, and the remaining rabbits in the groups have diet B.Select all that apply:
A. This is an example of a block design.
B. This is an example of a completely randomized experiment
C. This is an example of a matched pairs experiment.
D. The treatments are diets A and B.
E. The treatment is how much weight a rabbit loses.
F. The experimental units are the 20 rabbits.
G. The experimental units are diets A and B

Answers

Answer 1
Answer:

Answer:

A. This is an example of a block design.

D. The treatments are diets A and B.

F. The experimental units are the 20 rabbits.

Explanation:

The randomized block designs are used in experiment when there is only one variable of prime importance but along with it there are several nuisance factors. As in this case, the prime variable is the impact on weight of rabbits when they consume one the given diets. However, several nuisance factors are unequal weights of the rabbit, different class of rabbits, eating habits of rabbit, time of feeding etc.  

Treatment in an experiment is the independent variable that is varied to measure its impact on the subjects of the experiment.  

Here these independent variables are diet type A and B and the subject is the group of 20 rabbits. Subjects are also referred as experimental unit i.e on which the experiment is being conducted

Hence, option A, D and F are correct

Related Questions

Which are true about forests? Choose all that apply. I. They are home to one-half of the world's people II. Traditional medicine, used by most of the world, comes from forests, including rainforests III. Chemicals from old-growth forests are used to make most medicines IV. Forests are habitat for two-thirds of terrestrial species
What happens to the energy that the fox uses for maintaining its body temperature
Which area of fat deposition is more closely associated with disease? 1) Waist fat 2) Buttocks fat
How many possible codons exist in the genetic code? a. 3 b. 20 c. 46 d. 64
Use the words haploid cell, diploid cell, and fertilization all together in a sentence.

Please help!!
Need the correct answer
Urgent
Will give the brainliest​

Answers

Answer:

1) is A

2) is D

3) is D

Explanation:

Elizabeth discovers an organism in the wild and collects a sample of cells for identification in the lab. She observes that the cells of the organism have a nucleus, a rigid cell wall, but lack the characteristic green color from chlorophyll found in autotrophs. What kingdom does the organism Elizabeth discovered belong to?

Answers

Answer:

Fungi

Explanation:

The have a cell wall and nucleus. But no chlorophyll since they are decompose stuff

How many toes does a frog have

Answers


front has 4 toes and the back has 5 toes
20 toes frogs normally have 7 toes on there fore limbs and 3 on their hind limbs

Which of the following best describes the structure of the sides of the DNA molecule? a double helix b alternating c single helix d twisted

Answers

a double helix best describes the structure of the sides of the DNA molecule. The correct option is A.

Thus, Deoxyribonucleic acid, or DNA, has a double helix-like structure. It is made up of two lengthy nucleotide strands that are spirally coiled around one another.

The complementary nitrogenous bases adenine (A) and thymine (T) and cytosine (C) and guanine (G) form hydrogen bonds that hold the two strands together.

This double helix structure is frequently compared to a spiral staircase or a twisted ladder.

Thus, a double helix best describes the structure of the sides of the DNA molecule. The correct option is A.

Learn more about Double helix, refer to the link:

brainly.com/question/28493914

#SPJ6
The structure of a DNA molecule is
A.Double Helix

Which statement best describes the Richter scale?A. It's a numerical system that measures the smallest seismic waves during an earthquake.
B. It's a test given to all geologists.
C. It's named after a scientist who studied tornadoes.
D. It's a numerical rating system that measures the largest seismic waves during an earthquake.

Answers

The Richter scale is a way of giving the intensity of all earthquakes a numerical value. this allows the strengths of different earthquakes to be compared. Because of this, i think the best answer is D
Your answer would be D. It's a numerical rating system that measures the largest seismic waves during an earthquake .

Benthic organisms may be foundA swimming at the surface of a body of water
B living on the bottom of a body of water
C swimming in deep water
D swimming near deep water vents

Answers

Benthic Organisms may be found B.) LIVING ON THE BOTTOM OF A BODY OF WATER.

Benthic organisms are called Benthos. They live in and on the ocean floor. Examples of these organisms are worms, clams, lobsters, crabs, and sponges.

Benthos are classified as filter feeders or deposit feeders.
Other Questions
Complete each sentence by dragging the proper word to the appropriate position.The ____________ contains vertically arranged maculae that would provide feedback of body movement in the vertical plane. The ____________ are stimulated during linear acceleration in the transverse plane. An example of ____________ would include sitting in a wheeled chair and having someone push you from behind. An example of ____________ would be sitting in a chair and having someone spin you in a circle. Each of the ____________ is specially positioned to detect angular acceleration in one of the three planes. When someone is standing still, the kinocilia of the macula sacculi are bending inferiorly and thus conveying information regarding one's ____________ . The concept of ____________ can be exemplified by any acceleration, or change in velocity. static equilibrium dynamic equilibrium macula utriculi saccule vestibule semicircular canals cochlea crista ampularis linear acceleration utricle otolithic membrane angular acceleration macula sacculi
A scientist is trying to determine the relationship between clams, snails, and squid. When she generates a molecular clock, she is surprised to see that clams and squid are more closely related than clams and snails. Which did the molecular clock data show?Clams and squid have been evolving separately for a longer time than clams and snails. Clams and squid have been evolving separately for a shorter time than clams and snails. Clams and snails have more in common genetically than clams and squid. Clams and snails are more similar in related structures than clams and squids.
The view that cultures, like organisms, changed through time is called___________
Plant-like protists are considered to bea. chemotrophs b. heterotrophs c. autotrophs d. none of these