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
kodGreya [7K]
4 years ago
11

Dr. Portillo is conducting a study in order to test a causal hypothesis. What type of study must she conduct?

Biology
1 answer:
Aleonysh [2.5K]4 years ago
4 0

Answer:

Option A

Explanation:

Complete question

Dr. Portillo is conducting a study in order to test a causal hypothesis. What type of study must she conduct?

a. an experiment

b. a case study

c. a survery

d. a naturalistic observation

Solution

Hypothesis testing is an statistical analysis that involves testing a sample data to assure the plausibility of the null hypothesis.

After a hypothesis is stated, the next step is to prepare an analysis plan. After the plan is set, experiment methodology must be framed and executed. Once the result of experiment is obtained, it must be validated and hence cross checked with null hypothesis to either accept it or reject it.

Hence, option A is correct

You might be interested in
The American toad mates in the early part of summer, while the Fowler's toad mates later in the season. This is an example of __
Mandarinka [93]

Answer:

temporal isolation

Explanation:

5 0
3 years ago
If we were able to artificially alter the membrane permeability of pacemaker cells so that calcium influx is blocked
Lilit [14]

Answer:

The Heart rate would decrease

Explanation:

The Heart rate is expected to decrease, as calcium influx in blocked , since the threshold membrane potential can not be reached so quickly so the action potential will take place in longer time leading to decreased heart rate.

6 0
4 years ago
Based on what you now know about the relationship between limestone and marble what can you say about metamorphosis?
Fittoniya [83]

Answer:

The main difference between limestone and marble is that limestone is a sedimentary rock, typically composed of calcium carbonate fossils, and marble is a metamorphic rock. Limestone forms when shells, sand, and mud are deposited at the bottom of oceans and lakes and over time solidify into rock

Explanation:

This layering is a result of the process of metamorphism. Metamorphism is the changing of rocks by heat and pressure. During this process, rocks change either physically and/or chemically

4 0
3 years ago
A student placed a disk of filter paper in each of the following solutions: disinfectant 1, disinfectant 2, disinfectant 3, and
Ludmilka [50]
<span>The disinfectant that was the most effective at controlling the growth of E. coli is disinfectant 2 because of the least number of Ecoli strains found on the dish compared to the other disinfectants. Also dish 4 that cointains water has the most number of Ecoli strains because water is not a disinfectant and Acoi do not die in water alone.</span>
3 0
3 years ago
Specialized cells are grouped into structures known as?
FromTheMoon [43]
Your answer is tissues! 

7 0
4 years ago
Read 2 more answers
Other questions:
  • 34. Which member of the solar system has an
    7·1 answer
  • What do potatoes, wood and lobster shells have in common?
    9·2 answers
  • A client with anemia has been admitted to the emergency department and has had two units of packed red blood cells ordered. How
    12·1 answer
  • Which is one possible effect of an increase in carbon dioxide in the oceans?
    8·1 answer
  • Mid ocean ridges which contribute to the process of seafloor spreading Form as a result of
    7·1 answer
  • What term means removing the nucleus from a cell?
    13·1 answer
  • What energy using-process helps to cool the body
    11·1 answer
  • No links! pls help
    12·1 answer
  • Why do we need blood?
    11·1 answer
  • What room in a house is similar to the chloroplast in a cell?<br> Why?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!