Answer:
Paleozoic
Explanation:
Not sure dear
The combination of chemical reactions that make up an organisms help to organize raw materials into living matter
Answer:
Metabolism
Explanation:
Hydrocarbons are not very soluble in water because
the majority of their bonds are polar covalent, which repel water molecules
they contain ions, which make the entire molecule hydrophilic
they are less dense than liquid water, so they float on the surface
most of their bonds are nonpolar covalent, so they are not attracted to water
Explanation:
most of their bonds are nonpolar covalent, so they are not attracted to water
Answer:
D
Explanation:
took test
Select the correct answer.
Why might two elements possess similar chemical properties?
OA. They belong to the same group of the periodic table.
OB. They have the same physical state.
OC. They have similar physical properties.
OD. They belong to the same period of the periodic table.
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Answer:
A. They belong to the same group
Explanation:
Elements in the same group have same properties, because they have the same number of valence electrons.
what do you mean by acrophobia and ephebiphobia?
Answer:
Acrophobia ------- intense fear of heights
Ephebiphobia -----the fear of youth
Answer:
Acrophobia means extreme or irrational fear of height .Ephebiphobia is the fear of youthhope your day goes great.
Select the three areas of the human body that are covered by mucous membranes that act as barriers to infection from foreign pathogens. Multiple select question. heart and endocardium genitourinary tract brain and spinal cord gastrointestinal tract liver and gall bladder respiratory tract
Answer:
gastrointestinal tract
genitourinary tract
respiratory tract
Explanation:
which instrument is used to measure volume of liquid in laboratory?
Answer:
Liquid volume is usually measured using either a graduated cylinder or a buret. As the name implies, a graduated cylinder is a cylindrical glass or plastic tube sealed at one end, with a calibrated scale etched (or marked) on the outside wall.
Explanation:
If you like my answer than please mark me brainliest thanks
How is mitochondrial DNA (mtDNA) typing used in forensic science?
A suspect’s mtDNA sample is matched to an unknown sample of nuclear DNA that was found at a crime scene.
A suspect’s mtDNA sample is matched to an unknown sample of mtDNA that was found at a crime scene.
A suspect’s nuclear DNA sample is matched to an unknown sample of nuclear DNA that was found at a crime scene.
A suspect’s nuclear DNA sample is matched to an unknown sample of mtDNA that was found at a crime scene
Answer:
(B) A suspect's mtDNA sample is matched to an unknown sample of mtDNA that was found at a crime scene
Explanation:
I got it right lol and have a good day <3
Option B A suspect’s mtDNA sample is matched to an unknown sample of mtDNA that was found at a crime scene is correct.
What is Mitochondrial DNA (mtDNA) typing?Mitochondrial DNA (mtDNA) typing is used in forensic science to analyze DNA evidence in cases where the DNA material is degraded or present in small amounts, such as in hair shafts, bones, and teeth.
mtDNA typing is also useful in cases where a person's nuclear DNA (which is unique to each individual) is not available or is contaminated with DNA from multiple sources.
mtDNA is inherited maternally and is present in multiple copies in each cell, making it more abundant and resistant to degradation than nuclear DNA.
Forensic scientists can compare the mtDNA profile of a suspect with mtDNA evidence found at a crime scene to determine whether the suspect's DNA could have contributed to the evidence.
Since mtDNA is not unique to each individual and is shared among maternal relatives, mtDNA evidence alone cannot definitively identify a suspect, but it can help exclude individuals who do not share a common mtDNA profile with the evidence.
Hence option B is correct.
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Why are viruses not living??
Answer:
Viruses are not living cause they need any host (body or living organism) To perform its function.
Explanation:
Answer:
Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own way they can do nothing until they entered a living cell. Without cells viruses will not be able to multiply. Therefore viruses ante not living things.
define the term gene mutation
Answer:
it is the change in one or more genes
Genetic engineering involves various stages.
1 human DNA is inserted into bacterial plasmid DNA
2 recombinant plasmid inserted into bacteria
3 restriction enzyme cuts bacterial plasmid DNA
4 restriction enzyme cuts human DNA
What is the correct sequence for genetic engineering?
Answer:
4, 3, 1, 2
Explanation:
FIRST: cDNA is synthesized to be used as a gene of interest: processed (spliced) mRNA (no introns) is reverse transcribed to cDNA using reverse transcriptase, an enzyme from retroviruses
SECOND: Restriction enzyme used to cut GOI
THIRD: Same Restriction enzyme used to cut plasmid (sticky ends are created)
FOURTH: GOI connects/hybridizes with plasmid due to base-pairing
FIFTH: DNA ligase connects the recombinant DNA strands
Using your observations and knowledge of galaxies, is there a pattern or organization to how the billions of stars are arranged in a single galaxy or do you feel it is random?
Billions of stars in a single galaxy are arranged in : Pinwheel pattern with four major arms
What is a galaxy ?A galaxy is a collection of, billions of stars, dust and gases. galaxies are arranged in the universe in gravitational bound clusters. While the billion stars in a singles galaxy are arranged in pinwheel pattern with four major arms.
Hence we can conclude that Billions of stars in a single galaxy are arranged in : Pinwheel pattern with four major arms
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A man has three sons.
What is the chance of his next child being a son?
what is plasmolysis?
Answer:
plasmolysis is the process of shrinkage or contraction of the protoplasm of plant cell as. result of loss of water from the cell.
Answer:
Plasmolysis is defined as the process of contraction or shrinkage of the protoplasm of a plant cell and is caused due to the loss of water in the cell. Plasmolysis is an example of the results of osmosis and rarely occurs in nature.
The word Plasmolysis was generally derived from a Latin and Greek word plasma – The mould and lusis meaning loosening.
Explanation:
Answer from Gauth math
what is nitrification? describe the role of nitrify bacteria in this process
Nitrification is a process that converts ammonia into nitrate by bacteria.
Role of bacteriaThe bacteria Nitrosomonas and Nitrococcus present in the soil convert NH3 to NO2-, and another bacterium, Nitrobacter converts NO2- to NO3-. These bacteria gain energy through these conversions.
ayudaa por fa es para mañana
teniendo en cuenta la lectura uno de los métodos más rápidos económicos y eficaces para eliminar las bacterias del agua es la
A. desinfección
B. esterilización
C. cloración
D. inmunización
Certain blood vessels that contain specialized sensors that detect the level of internal pressure and transmit messages to the nervous system, which then triggers the smooth muscle in the vessel walls to make any needed size adjustments. These sensors are called: Select one:
I want this answer right now
Answer:
1. The Heartlies in the front and middle of your chest, behind and slightly to the left of your breastbone.
2. Right Atrium, Left Atrium, Right Ventricle, Left Ventricle
3. The valves prevent the backward flow of blood.
4. Arteries carry oxygenated blood while veins carry deoxygenated blood.
5. Eat Healthy, Stay Active
Explanation:
PLZ MARK AS THE BRAINLIEST
HAVE A GOOD DAY
: )
Answer:
Answer:
1. The Heartlies in the front and middle of your chest, behind and slightly to the left of your breastbone.
2. Right Atrium, Left Atrium, Right Ventricle, Left Ventricle
3. The valves prevent the backward flow of blood.
4. Arteries carry oxygenated blood while veins carry deoxygenated blood.
5. Eat Healthy, Stay Active
Explanation:
PLZ MARK AS THE BRAINLIEST
HAVE A GOOD DAY
: )
Explanation:
thanks for question
Name the electrolyte in the electrolysis of sodium chloride solution
Answer:
Sodium metal and chlorine gas can be obtained with the electrolysis of molten sodium chloride. Electrolysis of aqueous sodium chloride yields hydrogen and chlorine, with aqueous sodium hydroxide remaining in solution.
Answer:
Molten sodium chloride
Cathode: Na+(aq) +e ….>Na(s)
Anode: 2Cl-(aq) +2e…..>Cl2(g)
Sodium chloride solution.
Cathode: 2H-(aq) + 2e…>H2(g)
Anode:4OH-(aq)…>2H2O(l)+O2(g)
PLEASE NEED HELP ASAP!!! What statement is true about energy and matter in stars? Select the correct answers.
A. Some matter is converted into energy within stars.
B. Energy in stars causes the fusion of light elements.
C. All energy is converted into matter in stars.
D. Energy and matter are both conserved in stars.
E. Only energy is conserved within stars.
F. Only matter is conserved within stars.
Answer:
I think the answer is A
Explanation:
I would wait for someone else to answer though.
Name the two parts of the pectorial muscles.
Explanation:
Pectoralis muscle, any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder.
There are two such muscles on each side of the sternum (breastbone) in the human body:1. pectoralis major and
2. pectoralis minor.
Question 7
All living things are made of cells.
Lion
True
False
Answer:---
True. Cell theory makes three major assertions: 1. All living things are made of cells. 2. Cells are the smallest unit of life. 3. Cells can only...
What is the process that human
beings undergo to release ATP from
carbohydrates?
A. cell duplication
B. cellular genesis
C. cellular respiration
D. photosynthesis
Answer:
[tex]\huge\boxed{\sf Option \ C}[/tex]
Explanation:
Cellular respiration is the process in which carbohydrates (Glucose) are broken down into carbon dioxide and water in the presence of oxygen and a lot of energy is released which is further used for ATP synthesis and ATP is released!
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Peace!Which of the following holds the least amount of carbon?
Oceans
Glaciers
Plants
Soil
Answer:
Its the Ocean.
Explanation:
This is the correct answer I hope this helps you out.
Oceans hold the least amount of carbon compared to glaciers, plants, and soil. Therefore, option (A) is correct.
What is carbon cycle?Carbon exists in the oceans mainly in the form of dissolved inorganic carbon (DIC) in the form of bicarbonate and carbonate ions. The oceans act as a carbon sink, absorbing around 25% of the carbon dioxide emitted by human activities. However, the amount of carbon stored in the oceans is relatively low compared to other carbon reservoirs such as glaciers, plants, and soil.
Glaciers are made up of compacted snow and ice and can hold large amounts of carbon. Glaciers are important for the carbon cycle as they can sequester carbon for hundreds of years. Plants also store large amounts of carbon in the form of organic matter through the process of photosynthesis. Soil also stores significant amounts of carbon in the form of organic matter.
Overall, while oceans do play a role in the carbon cycle, they hold the least amount of carbon compared to other reservoirs. The carbon cycle is a complex system that involves many reservoirs and processes, and understanding the dynamics of each of these components is crucial to our understanding of global climate change.
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what is hiberbation?
Answer:
Explanation:
Hibernation is an adaptation that allows an animal to escape cold weather and food shortages over winter.
mitosis cell division are required to form 64 cell for one cell?
a.4
b.6
c.16
d.32
Answer:
im not sure
Explanation:
6) The scientific method
A: Can be used for simple experiments or more difficult experiments
B: Can be used only for simple experiments at home or in the classroom
C: Can only be used for experiments carried out by scientists
D: Can only be used for very difficult experiments
Answer:
Can be used for simple experiments at home or in the classroom
hormones in the bloodstream
Answer:
insulin
Explanation:
Answer:
chemical messenger.
Explanation:
When a person runs his body temperature goes up why and how it comes to normal
Answer:
the average person today actually runs then you will notice that your skin temperature is going to go down not up
Explanation:
A pure substance containing only one kind of blank hurry
Answer:
elements
Explanation:
Describe the functions of the three main regions of the brain
Answer:
The three main functions of brain are cerebrum , cerebellum , brainstem
