An experiment was carried out to answer the question "Does the pH of water affect the growth of radish plants?" Two groups often radish plants were set up. One group was watered with water having a pH of 3.0, and the other group was watered with water having a pH of 7.0. Both groups of plants received the same amount and intensity of light, the same amount of water, and they were grown in the same type of soil. The heights of the radish plants were measured every 2 days for a period of 2 weeks. Which activity might help to increase the validity of this experiment?
Answers
Answer:
Receiving the same amount of light intensity and water. Being grown in the same type of soil ensures that the above listed constant variable is maintained to ensure that any changes to rate of plant growth is solely due to changes in pH level.
Explanation:
The variable that u are testing Is change in pH level. Hence, to ensure results are reliable, u need to hold the other variables constant.
Final answer:
To increase the validity of this experiment, the researchers should replicate the experiment under different conditions or with a larger sample size. Further, running additional experiments with watering solutions having different pH levels could help in understanding the optimal pH for radish growth.
Explanation:
The activity that might aid in increasing the validity of this experiment on whether the pH of water affects the growth of radish plants is the replication of the experiment, preferably under different conditions or with a greater sample size. More experimental groups with varying pH levels may also make the results more valid and reliable. This means, instead of just having a group with a pH of 3.0 and another with a pH of 7.0, the researchers could consider using watering solutions with a pH of 4.0, 5.0, 6.0, and so on. This would help in pinpointing an optimal pH for the growth of radish plants and make the results of the study stronger.
Learn more about Experiment Validity here:
#SPJ2
Related Questions
The word ecology is made up of two Greek words, oikos and logia, and means "_____."-house knowledge -life logic -house logistics -environmental knowledge
In a laboratory, an albino mouse was treated with a chemical, resulting in a somatic mutation that induced a skin tumor. The mouse was able to survive. What affect would this mutation have on its progeny?A:the mouse couldnt have any progeny B:its progeny would have been affected C:its progeny would have been normal
Group of warm blooded animals with hair or fur
A lizard can lose its tail to escape a predator, and the tail will grow back at a constant rate. After 6 weeks, a lizard's tail has regrown to 3(3)/(4) inches long. Find the number of inches the tail
Answers
Answers
Answer:
y =
Explanation:
3x + 5y - 15 = 0
So we want to get it in the form y = mx + b
Subtract 5y from both sides;
3x - 15 = -5y OR -5y = 3x - 15
Divide both sides by -5
y =
Answers
Answer:
Primary succession
Explanation:
- The new landforms that are devoid of any vegetation have barren and rocky environment are colonized by the first plant species like grass and moss is called as primary succession which changes with time and occurs on new lands that not colonized yet and later on gets colonized a variety of organisms.
The process by which new land formed by volcanic activity in Hawaii becomes inhabited by organisms over time is called ecological succession.
In Hawaii, the formation of new land through volcanic eruptions, particularly from the Kīlauea volcano, creates a barren landscape devoid of living organisms. The initial colonization of this freshly formed land by the first living organisms is a process known as ecological succession. This process unfolds over time as a series of changes, where pioneer species, often hardy and adaptable, are the first to establish a foothold on the barren surface.
These pioneer species gradually alter the environment, making it more suitable for other, often more complex, organisms to follow. As succession progresses, a variety of plant and animal species populate the area, leading to the development of a diverse and stable ecosystem.
The entire process of ecological succession, from the colonization of pioneer species to the establishment of a mature and stable community, reflects the dynamic interactions between living organisms and their environment, showcasing the resilience and adaptability of life in the face of changing landscapes.
For more questions on ecological succession
#SPJ3
B. a fossil
C. a city
D. a theater
Answers
Explanation:
Eugenio First State Jesus Marcano was a Dominican plant scientist, zoologist, animal scientist, explorer and scientist. He ventured into malacology, geology, biological science pharmacological medicine and earth science wherever he created important contributions to the natural sciences. And the museum was named after him.
Answers
Brain Plasticity
Explanation:
The capacity of his brain area to take over the functions of the damaged brain areas is known as: Brain plasticity.
The frontal lobe of the brain is associated with the cognitive skills of man. His ability to think, memorize, recognize and decide depends on the frontal lobe responses. Located on the anterior part of the brain, the frontal lobe is more susceptible to injuries. Any injury to frontal lobe disturbs the normal cognitive behaviour and motor abilities. So, the changes in Phineas Gage's behavior indicates that the frontal lobe of his brain got injured.
But he could still lead a normal life with a bit of difficulties in work and behavior. This suggest that the functions of the frontal lobe has been taken over by some other part of the brain.
Answers
Answer:
Cell is the smallest unit that can carry on all functions of life.