PLS HELP ASAP!! THERE ARE 3 QUESTIONS 10 POINTS EACH!! PLUS BRAINLIEST IF YOU GET THE FIRST RIGHT ANSWER!!
Answer:
Question 17: B: They may provide evidence that Pennsylvania was once covered by warm ocean waters since most corals are presently found in these environments.
Question 14: I think the answer for this question might be A. But I'm not sure.
Question 10: D: Plates move toward each other and volcanic mountains form.
Help ASAP do plz!!!!!
Answer:
C.) repeating the experiment
Explanation:
By repeating the same exact experiment, you will see if the first one was maybe a fluke or it was "real".
Which range of sound waves can be reflected and used for finding distances, scanning documents, and cleaning engine parts
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Answer:Infrasonic.
Explanation:Because it describes the atomspheric waves with different frequncies.
Suresh and Gail are students in a lab working on mice with defects in the function of the HOX3A gene. In the special mouse line they are working on, no sequence changes are present in the genomic DNA of HOX3A, but the gene is not expressed properly and a mutant phenotype results. In one mouse line, an mRNA is produced in normal amounts, but no HOX3A protein can be detected.
Suresh thinks the absence of protein results from a change in RNA processing that prevents the inclusion of an exon in the final mRNA. Gail thinks the absence of protein results from some second gene that produces a protein that binds to the 3'UTR. Which of the two could be correct?
A) Only Suresh could be correct.
B) Only Gail could be correct.
C) Both Suresh and Gail could be correct.
Answer:
C) Both Suresh and Gail could be correct.
Explanation:
The pre-messenger RNA (pre-mRNA) transcript obtained after transcription of eukaryotic genes must undergo several processing events, including a process known as intron splicing, where introns (i.e., the non-coding sections of an RNA transcript) are removed and exons (coding regions) are joined to form a mature mRNA molecule. The three prime untranslated (3′-UTR) region of this mRNA can also bind to regulatory non-coding RNAs such as, for example, miRNAs which inhibit gene expression by inhibiting translation and/or by triggering its degradation. Moreover, the 3′-UTR region may also contain silencer sequences that bind to repressors in order to inhibit gene expression. On the other hand, translation refers to the process by which an ordered polypeptide chain (i.e., a protein) is synthesized by using the information contained in an mRNA molecule. In consequence, in the case under consideration, the mutation in the second gene could affect both RNA processing and the regulation of translation, thereby equally affecting HOX3A protein synthesis.
what are the names of the three domains
A.bacteria,archaea,eukaryotic
B.bacteria,archaea,animalia
C.archaea,plantista,animalia
D. Life,animals,plants
Answer:
A. bacteria, archaea, and eukaryotic.
Explanation:
Bacteria, archaea, and eukaryotic are the three domains of life.
The three domains system was globally implied. The three domains were Archae, Bacteria and Eukarya. The correct answer is option A.
The three domains of Carl Woese's categorization system are archaea, bacteria, and eukaryotes. The six kingdoms are archaebacteria (ancient bacteria), eubacteria (actual bacteria), protozoa, fungi, plants, and animals.
This classification system divides life into several groups based on differences in the 16S ribosomal RNA (rRNA) structure, the lipid composition of the cell membrane, and antibiotic sensitivity. The main distinction from earlier classification schemes is the division of Kingdom Monera into Archaea and Bacteria.
Therefore, the names of three domains given by Carl Woese were Archae, Bacteria and Eukarya i.e. option A.
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What is the original source of the energy stored in fossil fuels?
Answer:
the sun and previous organisms.
Explanation:
it's right
na zdjęciu przedstawiono nietypowego ssaka który zamieszkuje Australia Zapisz nazwę ssaka ze zdjęcia następnie wyjaśnij na czym polega jego Wyjątkowość
Answer:
gdzie jest zdjęcie ssaka?
Explanation:
Older systems of classification always placed penguins, chickens, ducks, and pigeons in the bird group and turtles and snakes in the reptile group. Does this diagram support the older system of classification?
Answer:
Yes
Explanation:
Turtle and Snakes are both reptiles
Las subunidades que forman el ADN se denominan:
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Explain Newton’s First Law and give an example of it
Answer:
When a person jumps out of a moving vehicle, he falls forward due to inertia of motion. One example of Newton's first law in real life is, when you are walking with a glass filled with water, you will notice that the water spills at certain locations when you walk at faster pace. The water inside the glass will remain at rest until you move.
Explanation:
Answer:Newton's first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
An object at rest stays at rest.
Explanation:
12. Which has NOT been linked to acid precipitation?
a. Toxic metal poisoning
b. Lower blood pH
c. Respiratory problems
d. Damaged monuments
Answer:
D
Explanation:
Lower blood pH has not been linked to acid precipitation. So, the correct option is (B).
What is Acid Precipitation?Acid rain is defined as rain or any other form of precipitation that is abnormally acidic, meaning that it contains high levels of hydrogen ions. Most water which include drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and averages between 4–5.
Acid rain can be caused by natural causes, such as volcanic eruptions, while acid rain can also caused by human activities such as the burning of fossil fuels, manufacturing, oil refineries, electricity generation, and vehicles, all of which release sulfur and nitrogen oxides into the atmosphere.
Thus, lower blood pH has not been linked to acid precipitation. So, the correct option is (B).
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In the presence of arsenate poisoning glycolysis is interrupted. ATP production proceeds via a reaction that involves 1,3-bisphosphoglycerate. a net production of 2 molecules of ATP occurs. All of the above None of the above
Answer:
glycolysis is interrupted.
Explanation:
The presence of arsenate can poison the process that inhibits ATP production which occurs during the process of glycolysis. Arsenate inhibits ATP formation during the process of glycolysis by substituting arsenate for the phosphate anion in a process known as arsenolysis. Arsenic has to inhibits cellular respiration by inducing mitochondrial enzymes and uncoupling oxidative phosphorylation.
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Answer:
4.166
Explanation:
what is the importance of ATP and NADPH?
Answer:
The energy that these molecules carry is stored in a bond that holds a single atom to the molecule. For ATP, it is a phosphate atom, and for NADPH, it is a hydrogen atom.
These electrons are used to produce NADPH as well as ATP in a series of reactions called the light reactions because they require light. NADPH and ATP formed by the action of light then reduce carbon dioxide and convert it into 3-phosphoglycerate by a series of reactions called the Calvin cycle or the dark reactions.
Describe the relationships among amino acids, chromosomes, proteins, and genes in the cells of a jackalberry plant. Make sure to include how gene expression is related to protein synthesis.
Answer:
The jackalberry plant is a multicellular organism whose cells contain chromosomes. The chromosomes contain genes that are transcribed to produce messenger RNAs, which are then translated into proteins
Explanation:
The Jackalberry tree is a plant, i.e., a multicellular organism. Multicellular organisms have chromosomes in the nucleus of each cell. A chromosome is a long DNA molecule that contains part (or even all) of the genetic information of a particular organism. Genes are specific segments of the chromosomes, which are expressed in a process called 'transcription' where a gene is used as template to synthesize an RNA molecule, usually a messenger RNA (mRNA). Subsequently, these mRNAs are used to synthesize proteins by a process called 'translation'. In an mRNA molecule, each specific triplet of nucleotides is known as a codon and corresponds with a specific amino acid during protein synthesis. Thus, the mRNA sequence dictates the correct order of amino acids (i.e., the building blocks of proteins) in the polypeptide chain.
A cell plate pushes the newly formed cells
away from each other and will reform with
cell walls in what type of cell?
A. animal cells
B. prokaryotic cells
C. plant cells
Answer:
think it's plant cells bcos it has cell wall
Parasitism, mutualism, and commensalism are all forms of symbiotic relationships. How does parasitism differ from mutualism and commensalism? A. Neither organism is harmed in parasitism. B. Three or more species must be involved in a parasitic relationship. C. Both organisms are harmed in parasitism. D. One organism is harmed in parasitism.
Answer:
The answer is D, the host is only negatively affected in a parasitic relationship.
18. The ____ effect refers to how certain types of gases trap heat in the
atmosphere to keep the Earth warm.
*
Greenhouse
Negative Feedback
O Heater
Answer:
Greenhouse
Explanation:
How has genetic engineering been used by humans in the past?
What happens when gases, like carbon dioxide, get trapped in the atmosphere?
Answer: Gases in the atmosphere, such as carbon dioxide, trap heat similar to the glass roof of a greenhouse.
Explanation: These heat-trapping gases are called greenhouse gases. During the day, the sun shines through the atmosphere.
Gases like carbon dioxide is a green house gas. It can trap the temperature radiated from the earth surface and return back the heat in the surface. Therefore, if the carbon dioxide gas is trapped in the atmosphere, the atmospheric temperature increases.
What is green house effect ?The heat energy from sun is radiated to the earth surface make the planet warmer. However, some fractions of the heat is radiating back from the atmosphere.
Gases like carbon dioxide, methane etc. are capable of absorbing the temperature intensely and make the atmosphere warmer. These gases are called green house gases and the effect is known as green house effect.
Green house effect leads to rise in global warming. Hence, if the gases like carbon dioxide is trapped in the atmosphere, the temperature increases.
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Plsss help me!!!!!!!!
i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand i dont understand
Fill in the blank with the appropriate term.
1. Cartilage is a type of dense ___________________ tissue.
2. The skeleton provides attachment surfaces for __________________.
3. The skeleton maintains ________________ homeostasis.
4. When mineral levels in the blood are too high, bones absorb some of the minerals
and store them as mineral ___________________.
5. Bone matrix is crisscrossed by blood vessels and ___________________.
6. Osteoclasts dissolve minerals in bone ___________________.
7. Bone marrow is found inside the pores of ________________ bone.
8. Early in the development of a human fetus, the skeleton is made entirely of
______________________.
9. By birth, several areas of cartilage remain in the skeleton, including the ends of the
___________________ bones.
10. With the help of muscles, joints work like mechanical ___________________.
11. The surfaces of bones at joints are covered with a smooth layer of cartilage that
reduces ___________________ at the points of contact between the bones.
12. Immovable joints allow no movement because the bones at these joints are held
securely together by dense ___________________.
13. Which of these statements about particulate matter less than 2.5 microns in diameter is true?
A. They can cause heart and lung disease.
B. They're produced from nitrogen gas (N.).
C. They're less of a threat than particulate matter that's 10 microns in diameter
D. They're the size of a human hair.
Answer:
Nitrogen Gas
Explanation:
penn foster
lesson 2
page 13
We explain the problematic situation of respiratory diseases
Answer:
Respiratory diseases like Asthma are increasing at a significant rate due to pollution.
Explanation:
Pollution in dense cities and other areas causes damage to the lungs, causing respiratory illnesses.
Bird species on secluded islands are highly vulnerable to extinction. The large,
flightless dodo birds native to the island of Mauritius were easy prey for predators.
Which of the following most likely contributed to the extinction of the dodo bird?
. ,
A The dodo bird species produced too many offspring.
B) The dodo bird species produced too few off pring.
The dodo bird species produced offspring with no unique traits.
The dodo bird species produced offspring with very unique traits.
Answer: im going to say C
1. Match each term with the correct definition. a. Abdomen b. Chest c. Genitals d. Pelvis e. Sternum ____ External reproductive organs ____ The middle part of the trunk, containing the stomach, liver and spleen ____ The upper part of the trunk, containing the heart, major blood vessels and lungs ____ Long, flat bone in the middle of the front of the rib cage, also called the breastbone ____ The lower part of the trunk, containing the intestines, bladder and reproductive org
[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]
A. Abdomen:- The middle part of the trunk, containing the stomach, liver and spleen.
B. Chest:- The upper part of the trunk, containing the heart, major blood vessels and lungs.
C. Genitals:- External reproductive organs .
D. Pelvis:- The lower part of the trunk, containing the intestines, bladder and reproductive org.
E. Sternum:- Long, flat bone in the middle of the front of the rib cage, also called the breastbone.
Thanks Hope it helps.How does one test for fats and oil? And color
does it give off
Answer:
paper test
actually this test no need of color observation
Explanation:
take a paper put any fatty substance and cover it with another paper and start rubbing
you can see that the paper is becoming a bit opaque
and this is because of oil or fatty substance in that food item
hope it helpedHELP ASAP PLEASE!!!!!!!!
By designing and performing an experiment.
Explanation:
A hypothesis is an educated guess or theory, so to test a hypothesis, one would not only design an experiment, but perform it as well.