In general, how might choosing a small sample size affect a scientific investigation?
A. A small sample size is more precise than a large sample size.
B. A small sample size is not as reliable as a large sample size.
C. A small sample size is less expensive than a large sample size.
D. A small sample size has fewer dependent variables than a large sample size.Following the War of 1812, the United States reached a number of agreements with foreign countries. Match the parts of each
Answer:
a small sample size is not as reliable as a large sample size
Explanation:
Please can anyone help me ill make you the brainiest, I need help with these questions! please please please
1.How many moles of oxygen react with 10.5 moles of methane?
2.How many moles of methane react with 10.7 moles of oxygen?
3.How many moles of carbon dioxide are produced from 80 moles of methane?
4.How many moles of water are produced from 800 moles of methane?
5.How many grams of oxygen will react with 85 grams of methane?
Answer:
1.07 moles react
Explanation:
because it mass in gram is 10.7 and molar mass is 10 and if we divide answer is 1.07
Answer:
Science not a fan but 2 moles would be my guess
Explanation:
they banned my other account but it still chardon
any characteristic of a material that you can observe without change the identity of a substance that make the material is a
Answer:
Any characteristic of a material that you can observe without changing the identity of the substances that make up the material is a physical property. Examples of physical properties are color, shape, size, density, melting point, and boiling point.
Explanation:
first quarter moon
last quarter moon
new moon
full moon
Answer: Full Moon
Explanation:
PLSSS HELP ITS EASY JUST THAT IM D_UMB
Sickle-cell anemia is a recessive trait in humans. In order to express the disease, an affected individual must inherit two recessive alleles (ss). What is the probability that the offspring of two heterozygous parents will also be heterozygous?
a) 0/4
b) 1/4
c) 1/2
d) 3/4
Answer:
The answer is 1/2 i tried and got it wrong ;-;
Explanation:
An architect is designing a recording studio for a musician. The studio needs to be soundproof
to keep out noise. The architect plans to use soundproof panels for the walls, ceiling, and floor.
Each soundproof panel is made from two sheets of hard foam with a vacuum in between
them, as shown in the diagram. Describe two ways the soundproof panel works to keep out
noise.
Answer:
I think the correct one is A
Explanation:
---> The process of selecting a few organisms with desired traits to serve as parents of the next generation. Selective breeding of plants and animals to promote the occurrence of desirable traits in offpsring.?
The process of determining a few creatures possessing desirable characteristics to participate as the founders of the coming generation is Artificial selection.
Artificial selection
The discovery of advantageous characteristics among living things by humankind, as well as the efforts performed to improve and maintain such traits throughout upcoming populations or years.
It follows the same procedure as evolutionary processes, with the exception that with biological evolution, nature determines the decisions rather than humans.
Thus the above response is correct.
Find out more information about Artificial selection here:
https://brainly.com/question/21412819
What is most likely to result immediately after a rainforest in Brazil is clear-cut?
Secondary succession
If 10,000 crosses were completed
between two heterzygous plants (Tt x
Tt) how many individuals would be
expected to be tall?
A. 7,500
B. 2,500
C. 10,000
One type of bacteria reproduces once every 60 minutes. If there are 2 bacterial cells to begin with, then after 4 hours there will be a total of
bacterial cells.
Answer:
6 bacterial cells
Explanation:
Hope this is helpful!!
Answer:
The answer is 8 bacterial cells.
Explanation:
can someone help brainliest
Answer: 1. founder effect
2. evolution
3. natural selection
4. species
5. geographically isolated
Explanation: Good luck! :D
Two populations live in the same habitat and compete for food. The first group is larger and multiplies through asexual reproduction; the second reproduces sexually. What could happen to cause the second group to outnumber the first?
Answer:
an environmental change that causes the larger but unadaptable species to die off
Explanation:
Two populations live in the same habitat and compete for food. The first group has larger and multiplies through asexual reproduction the second reproduces sexually an environmental change that causes the larger but unadaptable species to die off.
What happen when the process of meiosis does not takes place?If there has no process of meiosis takes place chromosome number will be doubled disturbing the genetic make up of the organism. If no meiosis has been takes place then the resulting of the zygote will be of double the number of the chromosomes. The genetic makeup would change entirely. The process of the meiosis halves the number of chromosomes in haploid cell and maintain the serenity of organism.
The process of the meiosis due to crossing over, genetic variation occurs which let the offspring receive favourable alleles to survive in new conditions and in the diploid organisms first the gametes are formed, then fertilization occurs and the diploid cell has formed which gives rise to the organism having diploid cells.
Therefore, Two populations live in the same habitat and compete for food. The first group has larger and multiplies through asexual reproduction the second reproduces sexually an environmental change that causes the larger but unadaptable species to die off.
Learn more about meiosis on:
https://brainly.com/question/29383386
#SPJ2
What percentage of offspring will have pink flowers
Answer:
50%
Explanation:
The pink flower donates the r allele and produces pink flowers in 50% of the offspring.
we need a box image to predict how many offspring of pink flowers there will be :/
Question 7 (1 point)
How are humans changing the carbon der
Lesson 1.10
all of the choices
Answer:
Human activities affect the carbon cycle through emissions of carbon dioxide (sources) and removal of carbon dioxide (sinks). The carbon cycle can be affected when carbon dioxide is either released into the atmosphere or removed from the atmosphere.
Explanation:
does this help
NADP+ is converted into NADPH during the light-dependent reactions. Where does the hydrogen
come from?
Which stage of the cell cycle lasts longest?
Answer: i think the Interphase because
Interphase is the longest part of the cell cycle. This is when the cell grows and copies its DNA before moving into mitosis. During mitosis, chromosomes will align, separate, and move into new daughter cells. The prefix inter- means between, so interphase takes place between one mitotic (M) phase and the next.
Explanation:
hope this helps have a nice day ❤️❤️❤️❤️
Answer:
Metaphase
Explanation:
hope this helps!!!
What are proteins that are found on the surface of some red blood cells.
genes
alleles
antigens
immunoglobins
Which trophic level is an omnivore (eats plants and meat)?
I believe they are the third trophic level. Please tell me if i'm wrong!
Cockroaches have low genetic diversity, yet are in no danger of going extinct. Which statement is most correct about the reproductive success of cockroaches?
A. Cockroaches are the "fittest" of all beetles.
B. Cockroaches have adaptations to be able to live in any environment.
C. Cockroaches have evolved to be generalists.
D. Cockroaches have adaptations that allow for interbreeding without any harm.
Answer:
B
Explanation:
Answer:
B
Explanation:
cockroaches have adaptations to be able to live in any environment
A cell in the stem tip of a corn plant contains 20 chromosomes. After this cell divides, how many chromosomes should each resulting daughter cell contain?
Which is an example of artificial light?
Answer:
It would be B. A lightbulb
Answer:
LIGHTBULB, sry if i did caps lock
Explanation:
helpppppp plssssssss
Explain why scientists classify organisms and how scientists classify species.
What is the main idea of this text?
A. Climate change is a complex and unpredictable process involving
feedback loops.
B. Disagreements about climate change have prevented scientists from
finding real solutions to global warming.
C. Wallace Broecker's theory may have been incorrect, but he presented
some worthwhile ideas.
D. Climate change can be completely reversed if carbon dioxide production
is changed.
Answer:
should be b
Explanation:
Answer:
disagreements about climate change have prevented scientific from finding real solutions to global warming
What kind of genetic disorder is represented in the pedigree?
Answer:
an autosomal recessive disorder
Explanation:
Autosomal recessive disorders are inherited diseases caused by the presence of two copies (alleles) of an abnormal gene, thereby only homo-zygous recessive individuals are affected by this type of disease. In consequence, although both parents don't express the disease, they can be carriers and pass this recessive disorder to their offspring who express the disease. In this case, the pedigree shows that heterozygous parents are not affected but they are carriers of the recessive allele for this disease, thereby some offspring express the trait. The black circle (female) and the black square (male) indicate affected individuals in the pedigree chart. Since both parents are heterozygous, 1/4 (25%) of all offspring would be expected to have the autosomal recessive disorder.
Marcus left his candy bar on the counter so he would have a treat after school. When he arrived home, he saw that the candy bar was half eaten. What did Marcus know from the evidence he got by observing the candy bar?
a. The environment interacted with Marcus’ candy bar.
b. An organism interacted with Marcus’ candy bar
Answer:
b
Explanation:
because something interacted with the candy bar, so thats why its half eaten (sorry i dont have good explanations-)
Which size cells are more efficient at obtaining nutrients?
Which of the following is the function of nucleic acids?
A. Breakdown chemical compounds
B. Carry heredity information
C. Structural support
D. Short-term energy storage
Answer:
B. Carry heredity information
Explanation:
Nucleic acids are one of the four types of biological molecules in nature. The other three being: proteins, carbohydrates, lipids. Nucleic acids consists of Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA).
DNA is a nucleic acid found in the NUCLEUS of eukaryotic cells or nucleoid region of prokaryotic cells where it functions to store or hold genetic information for the cell. On the other hand, RNA functions to carry the stored information in order to be expressed. Hence, according to this question, the nucleic acid functions to carry heredity information.
A student wants to know the effect a mutation might have on a species' survival. The change causes a rabbit to have mottled brown fur. The student runs a computer simulation for ten generations. What possible conclusions can you draw? Choose ALL that apply
Answer:
A) Evolution occurred because the allele frequency changed over time.
C) The rabbits with mottled brown fur have a selective advantage that gives them more camouflage from predators.
E) The mutation had a positive effect, allowing those rabbits with the mottled brown fur to survive and reproduce better than those with the brown or white fur.
Explanation:
Based on the data, you can conclude:
Evolution occurred because the allele frequency changed over time.
The rabbits with mottled brown fur have a selective advantage that gives them more camouflage from predators.
The mutation had a positive effect, allowing those rabbits with the mottled brown fur to survive and reproduce better than those with the brown or white fur.
The possible conclusions that can be drawn are
evolution that occurred due to the allele frequency.Rabbits with mottled brown fur have a selective advantage.The mutation had a positive effect.What is mutation?The mutation is a change in the DNA sequence that results from the copying mistakes that tke place during the cell division and the exposure to the radiating agent, exposure to virus and chemicals also leads to the cases of gene mutation.
Find out more information about the mutation.
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(ASAP please help short writing)
A. Describe the role of the promoter in eukaryotic gene expression. Explain how a negative regulatory molecule could inhibit transcription at the promoter.
B. Identify TWO events that occur during RNA processing. Explain how RNA splicing increases the variation of mRNA molecules.
C. Describe the role of miRNA in gene expression.
Answer:
Explanation:
A. The role of promoter in eukariotic gene expression is It is to bind transcription factors that regulate transcription initiation. This molecule is so important because control the binding of RNA polymerase to DNA. The promoter region may be short or very long; the longer the promoter is, the more protein binding space is available. A negative regulatory molecule has the possibilty to inhibit transcription at the promoter because these molecules block the binding of RNA polymerase to the promoter region, thus not allowing the initiation of transcription, in some particular cases, the negative regulator binds to the lac repressor and will bind to the promoter in the same site where RNA polymerase would bind to.
B. Two process that occur during RNA processing are RNA splicing and 5′ capping, 3′. RNA splicing is a procces known for removing the introns from the pre-RNA and stuck back together the restant parts, exons. This process has as a goal form a mature mRNA that does not contain the intron sequences. RNA splicing has effect on variation of mRNA molecules because through a process called alternative splicing more than one mRNA can be made from the same gene.
C. Even though they are not quite the same thing miRNA and negative regulatory molecules have the same role, which is inhibit the translation and silence genes. They regulate gene expression by binding to the 3'-UTR of their target mRNAs and destabilizing the mRNA and translational silencing, repressing protein production. Even so, under specific circumstances, miRNA can activate translation or regulate transcription.
