What is the biggest error, methodologically, in the following scientific study? "The goal of the study was to determine whether the ebola virus is as deadly in rhesus monkeys as it is in gorillas. I took a sample of four healthy rhesus monkeys and four healthy gorillas. The animals were a random mixture of sexes and ages. I arranged eight cages so that each animal would be in a separate cage, and I made sure there would be no contact among the cages that would allow transmission of the virus. Then I obtained a sample of the ebola virus from the National Institute of Infectious Diseases and injected all the monkeys and gorillas with the same size dose. At the end of four days, I noticed that all the gorillas were dead but only one of the monkeys was dead. An autopsy revealed that three of the four gorillas had died of ebola fever but that the fourth, nicknamed Curious George, had died of internal bleeding after swallowing the small pair of scissors that were left within reach of its cage. The dead monkey had died of ebola fever. At the end of two months there were no more deaths. I concluded that my dosage of the ebola virus is three times as likely to be deadly to gorillas as it is to rhesus monkeys, but I recommended repeating the study to see if the percentages of deaths due to ebola fever remained steady over a wide range of dosages of the virus."
Answer:
The sample obtained for the study is not enough. Also, a control group is not established thus making the study erroneous.
Explanation:
The total sample size of 4 specimens from each of the two groups does not qualify as an appropriate sample size for the generalization of the results. Furthermore, the mixing of different ages and genders is not suitable for this kind of sample.
Also, the control group is not established where healthy specimens are kept in a similar environment to factor out the effects of the environment and other components on the health/death of the animals.
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
C
Explanation:
Animals that don't adapt to their new environment die
Secondary succession occurs in which of the following
situations?
SELECT ALL THAT APPLY
a after a fire
b after a flood
C
after farming
d after logging
Shop
Answer:
A, B, C and D
Explanation:
The picture below shows the energy flow through a meadow community.
Hurry!!!
Which of the following would most likely occur to the populations of the community immediately after a wildfire burns the environment?
Group of answer choices
Hawks and foxes would increase
Hawks would increase and foxes would decrease
Meadow plants would increase and rabbits would decrease
Meadow plants and rabbits would decrease
1. How is the goal of evolutionary classification dif-
ferent from Linnaean classification?
Answer:
The goal of evolutionary classification is to group species into larger categories that reflect lines of evolutionary descent, rather than overall similarities. The goal of linnaean classification is to group species into larger categories based on physical characteristics.
What is the total amount of carbon removed from the atmosphere each year by the ocean and land plants, as shown by the arrows? (from carbon cycle gizmo)
Answer:
Either carbon got here by diffusing from the atmosphere, by decomposing marine life, or from circulating water from the deep ocean.
The ocean absorbs more carbon dioxide from the atmosphere than the land does.
The surface ocean takes in approximately 90 Gigatons of carbon per year.
Your welcome!
Explanation:
I need help to make an acronym with these words( WILL GIVE MOST BRAINILIST)
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
like, for example, "please excuse my dear aunt sally"
(parenthesis, exponents, multiplication, division, addition, subtraction.
Answer:
Dear kate please call our friend gary sarah
Describing key processes about weathering and erosion. Use at least 6 answers to this.
For each - choose either peroxisome or lysosome, both or neither Group of answer choices uses hydrolases lysosome uses the enzyme catalase peroxisome is one of the main sites of fatty acid breakdown peroxisome combines with endosomes to digest ingested matter lysosome capable of converting hydrogen peroxide to water and oxygen peroxisome destroys engulfed bacteria both lysosome and peroxisome main role is metabolism both lysosome and peroxisome digestive interior is acidic lysosome proteins are derived from the endoplasmic reticulum
Answer:
Uses hydrolases -lysosome
Uses the enzyme catalase- peroxisome
Is one of the main sites of fatty acid breakdown- peroxisome
Combines with endosomes to digest ingested matter- lysosome
Capable of converting hydrogen peroxide to water and oxygen- peroxisome
Destroys engulfed bacteria- lysosome
Main role is metabolism- both lysosome and peroxisome
Digestive interior is acidic- lysosome
Proteins are derived from the endoplasmic reticulum- Peroxisome
Explanation:
The lysosome is a membrane-bound organelle found within a cell whose main function is to ensure the break down of biological polymers, such as proteins and polysaccharides. It is comprised of enzymes that are degradative in nature that can degrade biological polymers such as proteins, nucleic acids, lipids, etc. They contain various types of hydrolytic enzymes such as proteases, nucleases, glycosidases, lipases, phospholipases, phosphatases, and sulfatase. These enzymes are acid hydrolases as they function in the acidic environment of the lysosome. Lysosomes are also used by the cell to destroy invading viruses and bacteria.
Peroxisomes are membrane-bound organelles found within the cytoplasm of a cell. They are derived from the edoplasmic reticulum. Peroxisomes are involved in lipid biosynthesis, for example, cholesterol and dolichol are synthesized in peroxisomes. Peroxisomes are also involved in the synthesis of bile acids from cholesterol.
Peroxisomes contain enzymes that oxidize fatty acids and amino acids. Peroxisomes also contain enzymes such as catalase that convert hydrogen peroxide to water and oxygen preventing oxidative damage by these reactive oxygen species.
Hurry!!! Timed!! Do NOT answer with a link!!!
Which statements describe gene therapy? Check all that apply.
A. It cures all cases of cystic fibrosis.
B. It involves the modification of DNA. C. It is easy to apply to all cells affected by the disorder.
D. It attempts to replace a mutated gene with normal DNA. It does not always cure patients who use it.
Answer: B, D
Explanation:) edge 2022
PLEASE HELP, YOU WILL GET BRAINLIEST! A mutation can only be inherited if it occurs in what type of cell?
Answer:
Hereditary mutations can only occur in sperm cells or germ cells.
Answer:
Germ cell DNA
Explanation:
it said my answer had to be 2p characters long
to differentiate between agarose gel electrophoresis and SDS-PAGE based on the following criteria:
2.2.1 Composition of gels
2.2.2 Dye used for staining
Explanation:
Agarose has a large pore size and is suitable for separating nucleic acids and large protein complexes. ... SDS-PAGE separates proteins primarily by mass because the ionic detergent SDS denatures and binds to proteins to make them uniformly negatively charged.
In this question we will differentiate between agarose gel electrophoresis and SDS-PAGE based on the composition of gels and Dye used for staining.
Agarose gelThe gel matrix is created by dissolving a natural polysaccharide called dye-free agarose, which is derived from a type of seaweed, in a conductive buffer, in the approximate proportion of 1% to 3% agarose.
SDS-PAGEPolyacrylamide gel electrophoresis (PAGE) with sodium dodecyl sulfate (SDS). SDS-PAGE consists of a type of electrophoresis performed under denaturing conditions for the separation of proteins without dyes.
Whit this information, we can conclude that differentiate between agarose gel electrophoresis and SDS-PAGE based on the composition of gels and Dye used for staining.
Learn more about electrophoresis in brainly.com/question/13949940
What is the genetic make-up of an organism?
Answer:
Explanation:
In a broad sense,genetic makeup of an organism can be regarded as the
"genotype" . It gives description about
complete set of genes an organism.
If we narrow it, it can be reffered to as "alleles" , this is is variant forms of a gene which is been carried by an organism. For instance, Humans can be regarded as diploid organisms, i.e there are two alleles at their each genetic position along with one allele which is been inherited from each parent. genotype of a specific gene is been represented by "Each pair of alleles". Instance of this is of "sweet pea plants" the gene responsible for flowering color posses two alleles, One of the alleles is responsible for coding purple flowers, symbolized with
uppercase letter F, the other allele is responsible for coding of white flowers
symbolized with Lowercase letter" f "
There are three possible genotypes which could be featured for Different population of a sweet pea, which are
✓FF
✓Ff
✓ ff.
Genotype of each plant have some contribution to the phenotype, by saying this, we mean outward appearance of its flowers.
Two brown eyed parents (Bb) have a baby, What are the genotypes of
the offspring?
Answer:
the genotype with be BB Bb Bb bb
Explanation:
Well after drawing a punnet square you will see that Brown eyes is the dom trait. And the ratio would be 1:2:1
Jaguars are a keystone species in the Amazon. Describe how they can be so essential to the ecosystem despite
being significantly less abundant than many other species.
Answer:
jaguars are keystone species because they feed herbivorous species that might decimate the plants of the ecosystem
Explanation:
Keynote species are species that help to maintain the homeostasis of the ecosystem so if they lack then the ecosystem would change drastically. Moreover, a top predator is a predator that occupies the highest trophic level in the food chain. Jaguars are both keystone species and top predators that feed herbivorous species, maintaining the health of the food chain by eliminating the excess of primary consumers that otherwise would feed too many plants (i.e., primary producers) which produce and store energy at the bottom of the food chain.
need helpppppp so can some of ya help me pls
Answer:
Hexagonal prisim
Answer:
A= incorrect (no rectangle)
B=correct
C=incorrect (5 points)
D= incorrect (8 points)
Hope this helps!
If an organism has six pairs of chromosomes how many chromosomes will be in one cell produced by meiosis?
Answer: 23
Explanation:
the gas made by respiratin is called what
Knowing that the teenage brain rewards risk is:
-a warning to make choices carefully.
-an excuse to make bad decisions.
-not relevant because parents make all decisions for their teens.
-a reason to lower the drinking age.
Explanation is in a file
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Two-Part Question: Which of the following
isotopes is best suited to determining the age of a Coelophysis fossil AND does any isotope follow
the relationship described in the graph above (yes -or- no)?
(A) carbon-14 (yes)
(B) potassium-40 (yes)
(C) carbon-14 (no)
(D) potassium-40 (no)
Producers are organisms that
capture energy and use it to
produce their own food. Which of the following is a producer?
A. fish
B. whales
C. plankton
D. algae
Answer:
D. Algae
Explanation:
They are producers because they make their own food through photosynthesis
if two chromosome have equal length and size , and different in gene number would severity of chromosomal abnormalities in this two chromosome are equal?
Answer:
Unequal.
Explanation:
The severity of chromosomal abnormalities in these two chromosome are unequal that are equal in length and size but unequal in gene number are because the gene number are different from one another. If the size of gene increase or decrease from the normal range then it will leads to chromosomal abnormalities in the cell so the cells that has normal gene number has normal chromosome as compared to those cells where abnormal gene is present so the chromosomes are abnormal.
what is process of forming an exact copy of the dna molecule called?
50pts!! PLEASE HELP IF YOU DO EDGUNITY. Lab: Mouse Genetics (One Trait) lab report.
please make one for me so I can easily copy and paste or paraphrase it, my teacher keeps making it do it smh IM TIRED
the process by which the characteristics of a species change over many generations in response to the environment
variation
variation
adaptation
adaptation
natural selection
natural selection
Evolution
In any population of plants and animals there are always
Answer:
Herbivores than carnivores
Explanation:
hope this helps:)
what is unhealthy lifestyle choice
Answer:
A dissipated personal modus operandum, which may be characterized by one or more of the following: substance abuse–eg, alcohol, drug and/or tobacco use, debauchery, sexual promiscuity and/or teenage pregnancy, poor sleep hygiene, domestic violence, and other unhealthy habits
Explanation:
Answer:
Eating fast food, not getting daily exercise (going for a walk or simply just stretching) sitting on your phone all day watching tik. Toks and other similar videos, being sad and depressed but still saying that you will start living a healthy lifestyle "tomorrow". That is an unhealthy lifestyle choice (which I had), but by making small differences every day, you will slowly but surely change your lifestyle and turn your life 180°. Just know that big things don't happen overnight. This is a sentence that is often said, but not everyone can understand it.
:-)
help me with this asap please.
Answer:
middle boxes are bases matching with eachother like A with T
AG CLASS!!!!!!!!!!!
Which of the following schools offers undergraduates a five-week summer program in Kyoto, Japan, that allows students to study the public gardens of the city?
Purdue University
University of Tennessee
University of California at Berkeley
University of Oregon
Answer:
University of California at Berkeley
what is biyologi
what is biyologi
Answer:
If you're talking about biology, it's the study of life and living organisms.
Explanation:
