The right option is B. The color of flowers is compared.
Qualitative observation is a type of observation that deals with data or information that can be observed with the senses such as sight, taste, touch, and smell. Qualitative observation does not make use of measurements such as height or numbers, but it describes the appearance of an object using descriptive language. Qualitative observations include colors, shapes, and textures of objects.
The color of the flowers is considered a qualitative observation.
Further Explanation:
The people observe things in plenty of ways. Some use numbers in their observations while others use their senses while observing. The later ones are called qualitative observations.
Qualitative observation accounts for the data which is observed through our senses such as smell, taste, touch, sight, and hearing. These observations do not include numbers or measurements. For example shape, color, and texture of materials display qualitative observations.
While observing things qualitatively, one can just see and determine the color and shape of leaves or flowers or fruits which does not include numbers in any way. This is done by the sense of sight. The qualitative observations are not accurate, not measurable, and are not recorded as numbers.
On the other hand, quantitative observations are invariable, measurable, accurate, and can be recorded as numbers. The instrument used while recording the observations are balances, rulers, beakers, and thermometers.
Here, the color of the flowers can be observed through naked eyes which then can be compared. The color observation is not measured in numbers or through any measurable device. It can simply be observed through sight. Therefore, it is a qualitative observation.
The height of the radish seedlings, weight of three weeks old chicken, and volume of carbon dioxide gas are all determined through measurable instruments. The observed height, weight, and volume are measured and written in numbers. As a result, these observations are considered as quantitative observations.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Qualitative Observations
Keywords:
Qualitative observations, shape, balances, height, texture, color, weight, volume, texture, non-accurate, non-measurable.
Answer:
Pokémon cool
Explanation:
cool
Answer:
false
Explanation:
b. that species was brought to the point of extinction, then miraculously saved through conservation measures.
c. that species is having a portion of its habitat destroyed.
d. that species is in immediate danger of extinction.
e. that species has many natural predators?
B) Inoculate infected amphibians with Jl, and determine whether the amphibians recover from infection by chytrids.
C) Take infected amphibians and assign them to two populations. Leave one population alone; inoculate the other with Jl. Measure the rate at which infection proceeds in both populations.
D) Take infected amphibians and assign them to two populations. Inoculate one population with a high dose of Jl; inoculate the other with a low dose of Jl. Measure the survival frequency in both populations.
Answer:
C: Take infected amphibians and assign them to two populations. Leave one population alone; inoculate the other with Jl. Measure the rate at which infection proceeds in both populations.
Explanation:
In scientific investigations, the best way to determine the effect of certain experimental factor on the population of study is to have a baseline for comparison. This is usually referred to as controlled experiment.
In the case of the observation that chytrid infection in amphibians seems to be inhibited by Janthinobacterium lividum, the best way experimental design is to get a population of amphibians suffering from the disease, divide them into two groups and subject them to the same conditions except the introduction of Janthinobacterium lividum to the skin of one of the groups.
A suitable method can thereafter be employed to measure the rate at which infection proceeds in both population. If indeed, the bacterium has the capacity to inhibit the infection, the rate of infection in the group with the bacterium will be significantly less than that of the group without the bacterium.
The correct option is C.
scales
ectothermic
amniotic eggs
beaks
feathers
hollow bones
Answer:
Scales
Amniotic eggs
Beaks
Explanation:
According to the reading,
"Birds are said to have evolved from the Reptilia. They do have some similar features. They have scales on their legs and feet; they lay amniotic eggs, but with a hard shell; they have beaks, similar to many reptiles, particularly turtles."