1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alisiya [41]
3 years ago
13

A biologist wonders if the life span of bats will be affected by two new food sources from invasive species moving into an area.

To conduct the experiment, the biologist needs three treatment groups: a group where the diet will not include invasive species (control), a group where the diet will include one invasive species (treatment group 1), and another group where the diet will include the other invasive species (treatment group 2). The biologist chooses the first cloud-free night and catches the first 18 bats that fly out of a cave, placing them into three equal groups of six bats. To decide the treatment for each group, the biologist places three slips of paper labeled control, treatment group 1, and treatment group 2 in a hat and randomly selects 2 slips of paper. The first piece of paper gives the treatment for the first group, the second piece of paper gives the treatment for the second group, and the remaining treatment is given to the third group.
Which component is missing from the biologist’s process?

a.The biologist did not use proper labeling on the pieces of paper.
b.The biologist did not use the appropriate number of treatment groups.
c.The biologist did not randomly assign the individual bats to the treatment groups.
d,The biologist did not randomly choose the weather on the night for bat capture.
Mathematics
2 answers:
lesya [120]3 years ago
4 0

Answer:

B) The biologist did not randomly assign the bats to the treatment groups.

Step-by-step explanation:

Answer for edge

elena-s [515]3 years ago
3 0

Answer:

D

Step-by-step explanation:

Every factor, besides for the factor you are testing for, must be the same for all of the groups and must be randomly selected. Choosing bats from one clear night isn’t random because a cloud free night might effect which bats first fly out of the cave.

It’s like surveying the first few people who walk out of a movie theater and asking if they thought the movie was good. Most likely not because they left so early/quickly. This can skew the results from being completely random and won’t reflect the entire population as a whole accurately.

Also, note that for every other answer choice, they are correct.

A - The biologist did use proper labeling

B - There are enough treatment groups

C - He did randomly assign 6 for each group

Therefore, by process of elimination, it is D.

I hope this helps! :)

You might be interested in
At the Charleston Balloon Festival, a hot air balloon is sighted at an altitude of 800 feet. It appears to be descending at a st
Lana71 [14]

Answer:

D 800-20m

Step-by-step explanation:

If I am wrong then it could  be B. I hope I could help.

7 0
3 years ago
Read 2 more answers
A number tripled and tripled again is 576. What is the number?
Oksana_A [137]

Answer:

192

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the coordinates of the midpoint of HX given that H(-1,3) and X(7,-1).
Elis [28]
A. find the average of both x's for the x value, and the average of both y's for the y value. (-1+7)=3  (3+(-1))=1
8 0
3 years ago
Read 2 more answers
Write the answer in simplest form: 5/6 − 3/5 I need this ASAP pls help
RSB [31]

Answer:

the answer is 7/30 (answer is .23 repeating)

3 0
2 years ago
Please help!!!!! thank u!!
Naddika [18.5K]
Set each piece = to 56, assuming that the 2 variables for which you are not solving are each equal to 0.

7x -2(0)-14(0) = 56
7x=56 (divide each side by 7)
X = ?
(__, 0, 0)

7(0) - 2y - 14 (0) = 56
-2y = 56 (divide each side by -2)
Y= ?
(0, __ , 0)

7(0) - 2(0) - 14z = 56
-14z = 56 (divide each side by -14)
z = ?
(0, 0, __)
4 0
3 years ago
Other questions:
  • Jack is taller than Sarah but shorter than both Malika and Tania. Malika is shorter than tania. Natasha is shorter than Sarah. W
    7·2 answers
  • I need help with the first one
    10·1 answer
  • what’s the point in learning algebra why would i need to use it later on in life, unless i’m a teacher but still dang
    13·1 answer
  • Find m∠C. please help
    8·1 answer
  • Please help i need the answer asap
    8·1 answer
  • PLEASE PLEASE SOMEONE HELP. ILL MARK YOU BRAINLY ANSWER ASAP
    12·1 answer
  • 6 erasers cost $6.60. Which equation would help determine the cost of 3 erasers
    10·2 answers
  • Find the slope of the line that passes through the pair of points.<br> (11, 7), (−6, 2)
    12·2 answers
  • Need help on this one please
    7·1 answer
  • Need helping asap thx
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!