Answer: minerals—pyroxenes, olivines, and feldspars—dominate the stony meteorites. Metals—kamacite and taenite—along with small amounts of schreibersite and cohenite dominate iron meteorites. The following list is a short guide to selected minerals found in meteorites.
Explanation:
Answer:
metals
Explanation:
i took the test
3. What muscle is diretly beneath the biceps?
Answer:
coracobrachialis muscle
What step ends translation?
A. addition of an amino acid into the growing peptide chain
B. separation of mRNA from the ribosome when a stop codon is reached
C. detachment of tRNAs from the ribosome
D. connection of tRNA anticodons with codons on mRNA
Answer:
addition of amino acid into the growing peptide chain
Where does cellular respiration occur? (1 point)
O chlorophyll
O mitochondria
O bacteria
O lungs
Answer:
Mitochondria
Explanation:
Plants.
Answer:
b.mitochanrida
Explanation:
-
Join a glucose and fructose molecules in order to form a sucrose molecule. It
will be necessary to remove an -OH from one molecule and an -H from
another in order to join the molecules. Does this enable the two molecules to
be joined together? Yes or No?
Answer:
d
Explanation:
Why did he wear safety glasses?
Answer:
to keep you protect from dust or anything that can damage his eye
please help me with this :((
Answer:
periodic table of elements luv
Explanation:
Answer:
Periodic table of elements
Explanation:
True or False?
1.Water moves through watersheds to rivers, lakes and eventually oceans.
2.Wetlands cannot filter pollution from freshwater systems.
3.Pollution can move into underground aquifers used for drinking water.
4.Ocean pollution is less harmful because it is mixed with a lot of water.
5.Ocean salinity is the same in all locations.
Answer:
True
False
True
False
False
Explanation:
now you can give the other person brainliest :D
True
False
True
False
False
Pollution
The stream runoff from small watersheds feeds into larger streams and rivers. The sun evaporates some water back into the air as it inflows into streams, rivers, and oceans.Wetlands' highly developed root systems hold the soil in place and filter pollutants, naturally improving water quality (including water that is eventually used for drinking).Contaminants present in these surface waters can contribute to contamination of the groundwater system. Some wells rely on artificial recharge to increase the amount of water infiltrating an aquifer, often using water from storm runoff, irrigation, industrial processes, or treated sewage.Heavy metals and other contaminants can accumulate in seafood, making it harmful for humans to consume. Microplastics can be ingested by fish and other species that filter their food out of the water.The salinity of the ocean varies from place to place, especially at the surface. Much of the ocean has salinity between 34 ppt and 36 ppt, but there are places that tend to be higher or lower.How is pollution caused?
Pollution is caused by solid and liquid particles and certain gases that are suspended in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes, and wildfires.
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What characteristic do all protozoa display?
autotrophic
immobile
vertebrate
eukaryotic
The characteristic that all protozoans display is their eukaryotic nature. Thus, the correct option for this question is D.
What do you mean by Protozoans?Protozoans may be defined as single-celled microscopic organisms that significantly belong to the kingdom of Protista. These organisms are eukaryotic in nature, and hence they have a true and membrane-bound nucleus in order to function properly.
Some protozoans are definitely attached to the substrate or construct cysts. So, they do not migrate around. But some protozoans have the capability to move around at some stages in their life cycles mostly after the cell division.
So, option B is eliminated. Protozoans are heterotrophic as well. They use organic carbon as a source of energy. So, option A is eliminated.
Therefore, the characteristic that all protozoans display is their eukaryotic nature. Thus, the correct option for this question is D.
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Answer:
immobile
Explanation:
Immobile is correct
An amoeba that lives in salt water does not have a contractile vacuole to do so.
Explain observations.
Answer:
what do we call a mutation that involves one or just a few nucleotides
what are 4 cellular activities that would require the energy of ATP?
Answer:
active transport (moving particles against the concentration gradient)making proteinscell division (for growth and repair)transmission of nerve impulsesHope this helps!
ATP is the energy currency of the cell and it is required almost everywhere. 4 cellular activities that would require the energy of ATP will be cellular respiration, ion transport, muscle contraction, nerve impulse.
What is the role of ATP ?The role of ATP is providing energy where it gets hydrolysed into ADP along with the phosphate ion where the reaction provides energy and this reaction brings about energy in the activity.
The cellular activities are the activities that take place inside the cell and various activities that will link to them in order to perform various functions. DNA synthesis, biochemical reactions, cellular respiration, cellular activities all takes place with the help of ATP.
Therefore, ATP is required almost everywhere in both cellular respiration activities and cellular activities.
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An atom that has twelve protons in its nucleus has an atomic number of:
24
13
12
none of the above
Answer:
Protons-12, Electrons-12, Neutrons-12
Answer
12 would be the correct answer
Please answer 16 points !!
Answer:
fisrt one is the answer most likely
Directions: determine if the statement is true or false. If false, correct the statement to be true.
1. true
2. true
3. false
4. false
5. true
Explanation:
maaf kalau salah
4. Which biomolecule is primarily responsible for storing energy?
C, protein
D. carbohydrate
A. lipid
B. nucleic acid
Answer:
D
Explanation:
any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose. They contain hydrogen and oxygen in the same ratio as water (2:1) and typically can be broken down to release energy in the animal body.
18. What are the five muscles that form a box to control the wrist?
en las imagenes te digo
which type of energy is stored in chemical compounds and released in chemical reactions
Answer:
A Chemical Energy
Explanation:
Chemical energy, Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction, often in the form of heat.
Answer: chemical energy
Explanation: took the test!
What is an argument in favor of using embryonic stem cells over adult stem cells?
A. Embryonic stem cells can differentiate into many more types of cells.
B. Embryonic stem cells are never really living.
C. Adult stem cells cannot be cultured.
D. Adult stem cells reproduce much faster than embryonic stem cells.
Answer:A
Explanation:
The ES cells is pluripotent, and the adult stem cell is unipotent.
what is the primary pigment that makes leaves green in land plants?
Chlorophyll is the primary pigment that makes leaves green in land plants, by absorbing red and blue light.
What is chlorophyll?It is a pigment present in the plant leaves, through which plant leaves apers green in observation, it plays several roles in the plants other than the green appearance of the leaves.
During photosynthesis, this chlorophyll pigment is responsible to form reaction center through which light is absorbed and leads to a process through which light converts into chemical energy for the synthesis of food.
It is present in the chloroplast, which is the site of photosynthesis, and provides the necessary components for plant food synthesis.
Therefore, the primary pigment that makes leaves green in land plants is known as chlorophyll.
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A natural function of the body necessary to support life is called _________________
Answer:brain
Explanation:
The term that describes when an enzyme loses shape and function.
Answer:
Denature
Explanation:
Denature
Answer:
A substance that speeds up a chemical reaction—without being a reactant—is called a catalyst. The catalysts for biochemical reactions that happen in living organisms are called enzymes. Enzymes are usually proteins, though some ribonucleic acid (RNA) molecules act as enzymes too.
ExplanatioEnzymes perform the critical task of lowering a reaction's activation energy—that is, the amount of energy that must be put in for the reaction to begin. Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily.
Reaction coordinate diagram showing the course of a reaction with and without a catalyst. With the catalyst, the activation energy is lower than without. However, the catalyst does not change the ∆G for the reaction.
Active sites and substrate specificity
To catalyze a reaction, an enzyme will grab on (bind) to one or more reactant molecules. These molecules are the enzyme's substrates.
In some reactions, one substrate is broken down into multiple products. In others, two substrates come together to create one larger molecule or to swap pieces. In fact, whatever type of biological reaction you can think of, there is probably an enzyme to speed it up!
The part of the enzyme where the substrate binds is called the active site (since that’s where the catalytic “action” happens
Why is sustainable use of natural resources important?
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The use of resources should be sustainable because many non renewable resources like coal and petroleum can be exhausted if they are over exploited.
Explain how fitness can change the allele frequency of a population. PLZ no link
Answer:
Natural selection can cause microevolution (change in allele frequencies).
Explanation:
With fitness-increasing alleles becoming more common in the population.
Fitness can affect the survival and reproduction rates of individuals with different alleles, leading to differential contribution to the next generation and changes in the frequency of these alleles in the population.
What is fitness?Fitness is a measure of the reproductive success of an individual within a population. The fittest individuals are those that are most successful at passing their genes on to the next generation. When the environment changes, the selective pressures on a population also change. This can lead to changes in the relative fitness of different individuals, and thus changes in the allele frequencies of a population over time.
For example, if a population of birds lives on an island with small seeds, those birds with small beaks may be more fit than those with larger beaks. This is because they are better adapted to the environment and can more easily obtain food. Over time, the frequency of the small-beaked allele will increase in the population, while the frequency of the large-beaked allele will decrease.
Thus, fitness can drive changes in the allele frequency of a population over time by favoring those individuals with alleles that are better adapted to the environment.
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what is the organ responsible for the production of bile
Answer:
Bile is a fluid that is made and released by the liver and stored in the gallbladder. Bile helps with digestion. It breaks down fats into fatty acids, which can be taken into the body by the digestive tract.
Explanation:
Answer:
the organ producing bile is pancreas
Is the pelvic girdle part of the axial or appendicular skeletal system?
Answer:
b. Appendicular
Explanation:
Answer:
B
Explanation:
Plato Anatomy 2.3 content quiz
How might the commercial fishing industry be affected?
Scientists estimate that the fishing industry kills between 0.97 and 1.97 trillion wild fish worldwide every year, further straining fragile oceans and other waterways that are already poisoned by pollution from oil spills, agricultural runoff and immense amounts of garbage.
De donde proviene el oxigeno que se libera durante la fotosintesis
Answer:
Sorry i dont know
Explanation:
What is the major role of leaves
Answer:
please give me brainlist and follow
Explanation:
The main function of a leaf is to produce food for the plant by photosynthesis. ... Oxygen is passed into the atmosphere through stomata—pores in the leaf surface. photosynthesis. Green plants such as trees use carbon dioxide, sunlight, and water to create sugars.
can solute particles pass through the membrane of a semipermeable membrane?
Answer:
No.
Explanation:
No, solute molecules are larger in comparison to solvents, so they cannot pass through the semi-permeable membrane.
Answer:
Nope Nope Nope, They cannot pass through it
Explanation:
Osmosis describes the diffusion of the solvent through a semipermeable membrane. The driving force of the solvent shift is the concentration difference of solutes in the solutions separated by the semipermeable membrane. In contrast to solvent, solutes cannot pass this barrier.
. What does the term mutation mean in regards to human genetics?
Answer:
A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing raditation, exposure to chemicals called mutagens, or infected by viruses.
Explanation:
A mutation is a change in a DNA sequence.
a bacterium has positively supercoiled dna. this is likely because
Answer:
A bacterium has positively supercoiled DNA. This is likely because? A. The bacteria don't normally express their genes. B.
Explanation:
The bacteria normally grow in high temperature condition. So, the correct option is D.
What is Bacteria?Bacteria are defined as tiny, single-celled organisms that are millions of different types of bacteria. Many can be found in and on the body and are beneficial to us. Bacteria lack a membrane-bound nucleus and other internal structures, so they are classified as unicellular life-forms called prokaryotes.
The bacteria in our bodies help break down the food we eat, provide us with nutrients and neutralize toxins that play an essential role in preventing infection by protecting colonized surfaces from invading pathogens.
Thus, the bacteria normally grow in high temperature condition. So, the correct option is D.
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Your question is incomplete, most probably the complete question is:
A bacterium has positively supercoiled DNA. This is likely because
A. It doesn't matter if the supercoiling is positive or negative as long as it compresses the DNA
B. The bacteria need most of their genes to be active
C. The bacteria don't normally express their genes
D. The bacteria normally grow in high temperature condition