Answer:
Independent variable
Explanation:
In a scientific experiment, an independent variable is that variable which the experimenter changes or manipulates in order to effect an outcome. Only one independent variable should be tested at a time in a good experiment, all other variables should be kept constant. The initial independent variable in this experiment is TYPE OF SUBSTANCE put in the students' eyes.
However, according to the question, the researcher did not keep track of what they did in that free time. Hence, many of the people receiving the medicine spent their time outside and many of the people receiving the placebo spent their time inside. The location of every student should be a CONSTANT VARIABLE i.e. same for all students but now it has become an INDEPENDENT VARIABLE because it has been changed.
Which accurately describes development?
changing while growing
growing larger over time
decreasing the number of cells
increasing the sizes of cells
Answer:
Changing while growing
Explanation:
I did this test and got it right.
Answer:CHANGING WHILE GROWING YEAAAAAAAA
Explanation:
A scientist hypothesizes that a plant with a thin cuticle will not survive as long without water as a plant with thick cuticle. Explain what the scientist could do to test this hypothesis.
Answer:
To make an experiment where plants with thin cuticle are under two different treatments: normal conditions and water stress conditions
Explanation:
An experiment is a scientific procedure that enables to confirm (or reject) a hypothesis. Thus, it is possible to determine the effects of the cuticle on the survival of the plant by subjecting plants with thin cuticle to two experimental conditions (normal and water stress conditions), which can be used to determine if the differences in plant survival are statistically significant to support the hypothesis (e.g., the key role played by the plant cuticle). Moreover, it is important to note that it is imperative to include a control group in order to contrast with the obtained experimental results (e.g., to include plants with thick cuticle in both treatments).
-6x-4x+2 need more than one answer
Where will you put the decimal point in the number 580000
Answer:
after the last zero
Explanation: because thats where the whole number ends and after that the decimals begin
Birds and humans are theorized to have a common ancestor because they have homologous structures. Which evidence best supports this theory? They both have tails and embryos. They each have vestigial structures. They have analogous structures. They have different forms as adults.
Answer:
They each have vestigial structures.
Explanation:
Birds and humans have a common ancestor as they have homologous structures.
Vestigial structures are the organs that have some important functions in the past but now in present, they do not perform any function.
Both humans and birds have vestigial structures such as humans have an appendix and ear pinna and wings of flightless birds such as ostrich.
Hence, the correct answer is "They each have vestigial structures.".
Answer:
They each have vestigial structures.
Explanation:
if a paper clip weighs 1.0 g how many paper clips would be in a paper clip box that weighs 0.5 kg
Answer:
500g
Explanation:
0.5kg=500g
500/1 = 500g
There are 500 paper clips in a paper clip box that weighs 0.5 kg.
What is a Paper clip?A paper clip may be defined as a type of material that is made up of steel or some other metal, but molded plastic is also used for binding up papers.
Weight of one paper clip = 1.0 g.
Number of grams in 0.5 kg = 500 g.
∴ Number of papers clips in 500 g = 500 × 1.0 = 500 paper clips.
Therefore, there are 500 paper clips in a paper clip box that weighs 0.5 kg.
To learn more about Paper clips, refer to the link:
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Plants cannot grow without ____. a. rocks c. moss b. soil d. pesticides
The plant cannot grow without soil.
Answer:
B. Soil
Explanation :
When you think about it, soil is what plants live on. Along with water, sunlight, and chlorophyll.
Which muscle group supports the entire body?
A) Hips
B) Upper thigh
C) Legs
D) Feet
Answer: I think its hips.
Explanation:
An amoeba is a unicellular organism.
The statement that an amoeba is a unicellular organism, is True.
What is an amoeba ?An amoeba is a unicellular organism, which means that it is a single-celled organism. They are a type of protist, which are a diverse group of eukaryotic organisms that are not animals, plants, or fungi.
Amoebae are found in moist environments, such as soil, freshwater, and saltwater. They are able to move around by extending their cell membrane and cytoplasm, a process called pseudopodia. They use pseudopodia to capture food and to move to new locations.
Find out more on amoeba at https://brainly.com/question/1217776
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what is the monomer of nucleic acids?
Answer:
Explanation:
he term nucleic acid is the overall name for DNA and RNA. They are composed of nucleotides, which are the monomers made of three components: a 5-carbon sugar, a phosphate group and a nitrogenous base.
All the populations in a given area. *
A. population
B. biome
C. community
Is it a complete question??
What’s wrong with this statement?
Ricardo decided to do a lab activity that he read about in a library book before the teacher came into the classroom.
Answer:
he is not suppose to use the equipment without the teacher instructing him to do.
Choose all of the following requirements for evolution by natural selection.a- breeding individuals in a population produce more offspring than the environment can supportb- the fertile offspring of individuals that are well adapted to their environment will make up the same proportions of the next generationc- the fertile offspring of individuals that are well adapted to their environment will make up greater proportions of the next generationd- the differences that exist between individuals in a population are heritablee- the member of a population are genetically identicalf- breeding individuals within a population tend to produce only as many individuals as the environment can supportg- individuals within a population struggle and compete for the same resourcesh- individuals better suited to their environment are more likely to survive and reproducei- the members of a population differ from each other
Answer:
C.the fertile offspring of individuals that are well adapted to their environment will make up the greater proportions of the next generation.
H.individuals better suited to their environment are more likely to survive and reproduce.
Explanation:
The requirements for evolution by natural selection are;
C.the fertile offspring of individuals that are well adapted to their environment will make up the greater proportions of the next generation.
H.individuals better suited to their environment are more likely to survive and reproduce because
Natural selection refers to basic mechanism of evolution where by organisms develop traits or characters that will make them to adapt, survive and reproduce in their environments thereby transferring those traits or characters to their next generations.
It is survival and reproductive mechanism.
True or false: All chemicals after the lab can be thrown back into its container for reuse.
Answer:
false
Explanation:
chemicals should never be reused because it cam affect the next experiment. always ask your teacher what to do with the materials.
Answer:
False
Explanation:
All chemicals after a lab experiment should be disposed of in the correct way (usually a container that is for hazardous waste). Failing to do so can be very dangerous as they've already been used
The influence of biology on the development of technology and engineering
1. Give some of your examples where knowledge from biological science has contributed to the development of some technological processes; 2. List some (for you) famous scientists who have contributed to the development of biological science and applied biological sciences. This should be a research paper in the form of a paper e.g.
Please help,write a lot, everything you know
Answer:Their impact(s) may be beneficial or detrimental depending on how these ... [Some of these technologies are related to the manipulation of biological ... Techniques have been developed to expand both the diversity of nucleotide or ... By the early 1970s, scientists had demonstrated that they could engineer synthetic genes.
Explanation:
Which processes require oxygen
Answer:
so many processes requires oxygen to operate .
An example is the process of plants making their own food .
Answer: So many processes involve oxygen ;
BreathingPhotosynthesisCellular respirationconversion of pyruvic acid to Acetyl CoAproduction of water in the electron transport chain Aerobic MetabolismJust to list a few
Explanation:
i need this question pls help me
Overall, what types of organisms benefit from the producers that capture energy from sunlight and produce oxygen and sugar?
a-Photosynthetic organisms
b-Organisms that are consumers.
c-Organisms that are producers.
d-Organisms that have chloroplast.
Answer:
A- Photosynthetic Organisms
The heart is an example of which level of organization within an organism?
Answer:
An organ.
Explanation:
Follow this extremely helpful flow chart:
Cell ⇒ Tissue ⇒ Organ ⇒ Organ System ⇒ Organism
The heart is an organ because it is a collective of tissue functioning together.
the combination of chemical reactions through which an organism builds up or breaks down materials as it carries out its life process is called
Answer:
metabolism
Explanation:
Explain what the interviewer meant when he said that genetic mutations are like misprints in a book.
Answer:At times parts of the gene can change entirely, leading to alteration of the product. There are many types of gene mutations, but all types of mutation can potentially affect the cell and its function.
Explanation: A publisher can misprint a book in several ways. The publisher can miss words, make spelling erros, mix up paragraphs or delete some text entirely.With these kinds of errors, the text will be inaccurate, and the reader can get confused. Mutations in genes happen similarly.
Which describes the paleoanthropology practice of walking the landscape looking for fossils on the surface?
Answer:
The correct answer is : surveying.
Explanation:
Paleo-anthropology is the study of the extinct primates, it is a sub branch of anthropology. It is focused on the human evolution and rise of the sub type of family of the other human or hominids.
Surveying is the one of paleoanthropoolgy practices that involves the finding the fossils of hominids on the surface of all around the globe by walking to compare it and study the evolution of human family.
Thus, the correct answer is- surveying.
8. Green plants use oxygen for:
a. ATP production during aerobic respiration
b. Light absorption during photosynthesis
C. ATP production during anaerobic respiration
O d. The breakdown of starch during digestion
Answer:
a
Explanation:
plants uses oxygen for respiration, so in that process respiration takes place and respiration in plants has to do with the conversion of oxygen to carbon dioxide which serves as a means of respiration and during respiration ATP is being produced which stands for Adeosine triphosphate
A(n) ____________
is an explanation for an observation you have made
A qualitative observation
B graph
C quantitative observation
D inference
Which of the following is not a main use of fuel? a. transportation c. heating and cooling buildings b. manufacturing d. cooking
20. Define and give an example of radiation:
Answer:
Radiation is the process of sending energy i. the form of light, heat, or nuclear particles.
An example: Radio waves, or waves produced from your mobile phone.
Children receive half of their genes from each parent. Does this mean that all children born to a couple will have half their mother’s and half their father’s features? Explain your answer, using an example to support it. Topic: Genotypes and Phenotypes
Amoeba breathes through its ______is utilized during respiration to release energy.
Answer:
Amoebas "breathe" by allowing oxygen from their aquatic environments to diffuse through their cell membranes.
Choose all the true statements about oxidative phosphorylation.
A. Oxidative phosphorylation occurs in the inner mitochondrial membrane.
B. The oxidation of NADH provides enough energy to produce three ATP molecules.
C. Oxidative phosphorylation is an anaerobic process.
D. The oxidation of FADH, provides enough energy to produce three ATP molecules.
E. Oxidative phosphorylation and the electron transport chain are called coupled reactions.
Answer:
A. Oxidative phosphorylation occurs in the inner mitochondrial membrane.
B. The oxidation of NADH provides enough energy to produce three ATP molecules.
Explanation:
Oxidative phosphorylation is the third step of cellular respiration, in which NADH2 or FADH electron carriers are oxidized to produce ATP. Oxidative phosphorylation occurs in the inner mitochondrial membrane. It is composed of two processes viz: electron transport chain and chemiosmosis.
Either NADH2 or FADH is used as the starting electron carrier. When NADH is used, its oxidation produces enough energy to generate 3 molecules of ATP per molecule while FADH generates 2 ATP molecules.
is a hypothesis always correct? explain
In the anatomical position, the umbilicus and knees are on the:_____body surface.
Answer:
In the anatomical position, the umbilicus and knees are on the: anterior body surface.
