Answer:
The most distinguishing and prominent feature of Ecdysozoans is their cuticle: a tough, but flexible exoskeleton that protects these animals from water loss, predators, and other aspects of the external environment. All members of this superphylum periodically molt or shed their cuticle as they grow.
Explanation:
5 mixture can be found in kitchen
Answer:
1)Oil and water
2)flour and butter
3)tea and sugar
4)baking powder
5)soda and lemon juice
Answer:
mixed nuts
cake mix
cookies
mixed chocolate
ketchup
Explanation:
because all these mixtures are mixed
True or False: Most asteroids are found floating freely
throughout the solar system.
Answer:
True
Explanation:
As they revolve around the Sun in elliptical orbits, the asteroids also rotate, sometimes quite erratically, tumbling as they go. More than 150 asteroids are known to have a small companion moon (some have two moons).
pls mark brainliest if I'm correct
Which process is NOT fueled by ATP produced in cellular respiration. First exclude the four processes that are fueled by ATP produced in cellular respiration. Which process is NOT fueled by ATP produced in cellular respiration. First exclude the four processes that are fueled by ATP produced in cellular respiration. building gradients of substances across the outer cell membrane movement of vesicles along cytoskeletal tracks transport of protons (H+) from low concentration in the mitochondrial matrix to high concentration in the mitochondrial intermembrane space chemical work phosphorylation of a motor protein in the cytosol
Answer:
transport of protons (H+) from low concentration in the mitochondrial matrix to high concentration in the mitochondrial intermembrane space
Explanation:
atpase pump can also be called atp synthase. this enzyme catalyses atp formation from adenosine diphosphate and phosphate. it has f1, stalk and f0 components. 3 positive hydrogen ions go through to make 1 adenosine triphosphate molecule. oxidative phosphorylation has to do with the loss of electrons. there would be electrons loss from NADH to FADH2. Cytochromes carries them through different series of transferases from I to IV and while on this positive hydrogen ions are released into mitochondrial matrix
positive hydrogen ions are moved back to lumen through adenosine triphosphate channels. a process called chemiosmosis. the pro
Answer:
The correct answer is "building gradients of substances across the outer cell membrane"
Explanation:
Building gradients of substances across the outer cell membrane is a form of diffusion in which substances move across cellular membranes based on there independent gradient. This form of movement is a type of passive transport because it does not require the use of ATP for transport. The building gradients of substances across the outer cell membrane requires diffusion and does not require the use of ATP.
Movement of vesicles along cytoskeletal tracks requires individual vesicles to be transported by there respective motor proteins along the cytoskeletal tracks. These motor proteins require ATP to move these vesicles. Also, the phosphorylation of a motor protein in the cytosol requires one phosphorus molecules from ATP.
Transport of protons (H+) from low concentration in the mitochondrial matrix to high concentration in the mitochondrial intermembrane space is a description of the "hydrogen pump" that occurs in the electron transport chain. When hydrogen ion pump occurs, the hydrogen ion gets flown back through a ATP molecule.
Mercury's iron core takes up a majority of the planet's radius,
which plays a role in the planet's density.
TRUE
FALSE
Answer:
I think false sorry if wrong
which of the following is NOT true about evolution? NO LINKS
A. it is necessary for a population to survive
B. it results from environmental changes
C. large populations are affected more than
small populations
D. individuals moving into or out of the
population cause evolution.
Answer:
A
Explanation:
It can help a population to survive but it is not necessary.
Which choice is correct?
Answer:
B is the correct answer
Which living is most closely related to Cetaceans such as whales?
Answer:
All Whales and Dolphins are a member of the Even-toed Ungulates or Artiodactyla. The groups closest living relatives are Hippos, sharing an ancestor approximately 47 million years ago. Once upon time, it was thought that Whales and Dolphins were closely related to extinct land-dwelling carnivores.
Explanation:
Describe how DNA's structure helps it be copied during cell division.
Answer:
The two strands of the DNA double helix uncoil at a specific place termed the origin during separation. The strands are then primed for duplication by a combination of enzymes and proteins. Finally, the assembly of the new DNA strands is organized by a specific enzyme called DNA polymerase.
Explanation:
Which statement summarizes the relationship between chromosomes,DNA, and genes
Answer:
The accurate answer to this is:
D.Genes use DNA code to manufacture proteins for chromosomes.
Explanation:
Genes use DNA code to manufacture proteins for chromosomes.
What are chromosomes?
The thread-like chromosomes that convey the genomic information from cell to cell are formed of protein and a single DNA molecule.
Chromosomes are found in the nucleus of cells in both plants and animals, including humans. There are 46 chromosomes in all, including 22 pairs of numbered chromosomes (autosomes) and one pair of sex chromosomes (XX or XY).
Children receive half of their chromosomes from their mother and half from their father because each pair comprises two chromosomes, one from each parent.
Therefore, Genes use DNA code to manufacture proteins for chromosomes.
To learn more about chromosomes, refer to the link:
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When is it possible to break even in an energy transformation
A: Always
B: Late phase
C: Early Phase
D: Never
which structure inside the cell holds the digestive enzymes that break down the carbohydrates
Answer:
The lysosome is an organelle that contains digestive enzymes and acts as the organelle-recycling facility of an animal cell. It breaks down old and unnecessary structures so their molecules can be reused. Lysosomes are part of the endomembrane system, and some vesicles that leave the Golgi are bound for the lysosome.
Explanation:
The body is supplied with oxygen by the _____.
respiratory system
circulatory system
endocrine system
excretory system
digestive system
PLEASE HELP ILL GIVE BRAINLEST
Cyanobacteria, also known as blue-green algae, are a kind of bacteria found in many lakes. These organisms make their own food through photosynthesis. Small animals including mayfly larvae eat the cyanobacteria, and small fish such as yellow perch eat the larvae. The small fish provide food for larger fish, such as walleye.
Describe a model you could use to show the transfer of energy within the lake ecosystem. In your description of your model, make sure you include the position of each organism identified in the paragraph.
Answer:
Cyanobacteria are aquatic and photosynthetic, that is, they live in the water, and can manufacture their own food. Because they are bacteria, they are quite small and usually unicellular, though they often grow in colonies large enough to see. They have the distinction of being the oldest known fossils, more than 3.5 billion years old, in fact! It may surprise you then to know that the cyanobacteria are still around; they are one of the largest and most important groups of bacteria on earth.
Many Proterozoic oil deposits are attributed to the activity of cyanobacteria. They are also important providers of nitrogen fertilizer in the cultivation of rice and beans. The cyanobacteria have also been tremendously important in shaping the course of evolution and ecological change throughout earth's history. The oxygen atmosphere that we depend on was generated by numerous cyanobacteria during the Archaean and Proterozoic Eras. Before that time, the atmosphere had a very different chemistry, unsuitable for life as we know it today.
The other great contribution of the cyanobacteria is the origin of plants. The chloroplast with which plants make food for themselves is actually a cyanobacterium living within the plant's cells. Sometime in the late Proterozoic, or in the early Cambrian, cyanobacteria began to take up residence within certain eukaryote cells, making food for the eukaryote host in return for a home. This event is known as endosymbiosis, and is also the origin of the eukaryotic mitochondrion.
Because they are photosynthetic and aquatic, cyanobacteria are often called "blue-green algae". This name is convenient for talking about organisms in the water that make their own food, but does not reflect any relationship between the cyanobacteria and other organisms called algae. Cyanobacteria are relatives of the bacteria, not eukaryotes, and it is only the chloroplast in eukaryotic algae to which the cyanobacteria are related.
Explanation:
What is the experiment for iodine test on starch? Step by step.
Answer:
Explanation: SOLID SAMPLE :
1. Peel off the skin of any vegetables e.g. potato and fruits as these are often impermeable. Use a clean spatula to remove samples of powdered food. Avoid cross-contamination with other foods.
2. Add a few ( 2-3) drops of bench iodine solution potassium to a piece of solid food on a white tile.
3.Make observations.
LIQUID SAMPLE:
1. Add 10 cm3 of the liquid food sample to a clean, dry test tube.
2.Add about 5 drops of iodine solution to the test tube.
3.Note any colour changes.
4.To prepare a control, perform steps 1 -3 for de-ionized water.
Which word describes a slope in biology?
Answer:
Concentration Gradient
What is the voltage on a battery if it produces 2 A of current through a 6 ohm
resistor?
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If a tectonic plate moves at arate of 2 km every 1 millionyears, how long would it take ahot spot to form a chain ofvolcanoes 100 km long?
Answer:
I would say that the answer is: 50 million years. It will take 50 million years.
Explanation:
Hope that helped!
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AGCGTACCCTAC
AGCGCCCTACTT
Is this a frameshift mutation?
1.Yes, because the nucleotides/nitrogen bases moved
2.No,because the amino acids did not change
3.No,because the nucleotides/nitrogen bases did not move
Answer:
2 it would have been UCGCAUGGGAUG
How does an influenza virus cause symptoms of the flu to spread in the
human body?
O A. The proteins of the viral capsids kill all the cells around an
infected cell.
B. The virus particles produce toxins that poison cells throughout the
body
C. The new viruses formed inside one cell infect and quickly kill other
cells
D. The viral nucleic acid attaches to the DNA in a host cell and then
lies dormant
Answer:
The flu is caused by influenza viruses that infect the nose, throat, and lungs. These viruses spread when people with flu cough, sneeze or talk, sending droplets with the virus into the air and potentially into the mouths or noses of people who are nearby.
Explanation:
D) is the correct answer
hope it's help you
Answer:C
Explanation:
is actually C trust me guys
what can be used to detect fermentation in yeast ?
Answer:
methylene blue
I hope this help
Answer:
The rate of fermentation can be measured by placing a small amount of yeast and sugar solution in a fermentation tube.
Explanation:
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes
The molecules that capture light
energy are called...
A. mitochondria.
B. lysosome.
C. pigments.
Answer:
C
Explanation:
thats the answer im done whit that
true or false the offspring produced by asexual reproduction are genetically identical to their parents.
Answer:
True
Explanation:
A person has floppy, unattached earlobes. This is a trait caused by a single gene (monogenetic). Having floppy earlobes is a dominant trait. If the letter E represents one allele, which of the following could be the genotype of this floppy-eared individual?
EE
Ee
ee
EE , Ee , and ee are all possible genotypes .
EE and Ee are possible genotypes , but not ee ..
what is the main functions of the appendix
Answer:
The function of the appendix is unknown. One theory is that the appendix acts as a storehouse for good bacteria, “rebooting” the digestive system after diarrheal illnesses. Other experts believe the appendix is just a useless remnant from our evolutionary past.
Glucose enters the cell through which of the following mechanism?
Select one:
a. Facilitated diffusion
b. Central pathways
c. ATP binding cassette transport
d. Feeder pathways
e. Phosphotransferase system
Answer:
a. facilitated diffusion
Explanation:
Instead, cells assist glucose diffusion through facilitated diffusion and two types of active transport.
Which organic molecules are present in milk?
Answer:
Explanation:
The principal constituents of milk are water, fat, proteins, lactose (milk sugar) and minerals (salts). Milk also contains trace amounts of other substances such as pigments, enzymes, vitamins, phospholipids (substances with fatlike properties), and gases.
A plant has the genotype AArrSs. Cross out gene combinations that cannot be produced or are not normal in the haploid gametes of this plant: Aas ArS Ars arS aRs Arr AS AArrSs
Zebras spend a lot of time traveling in search of grass to eat. It is dark out, and this zebra is not eating. What is happening to the carbon in the air around the zebras and the grass nearby?
Answer:
The carbon is moving into the air
Explanation:
Since the zebra is not eating, the carbon is only moving into the air and not out of the air
A set of identical twins are together in an introductory biology class. The unit of study is DNA and its structure. The teacher describes the structure of DNA and its role in gene expression over the course of the lesson. Which components of the structure and expression of DNA would be identical for these particular twins that account for their similar appearance? Select ALL that apply. A) The timing of the DNA replication is identical for all cells in these students. B) The environmental influence of gene expression is identical for both students. C) The alleles that are carried on the chromosomes are identical for both students. D) All of the genes carried on the DNA are always expressed for both of these students. E) The order of the bases on the interior of the DNA molecule is identical.
In identical twins, alleles are identical and the order of the bases on the interior of the DNA molecule is identical (Options C and E). It is because genetic material is identical.
What are identical twins?Identical twins refer to individuals produced by the same zygote cell, i.e., they are monozygotic twins.
Since these individuals are produced by the same zygote cell, their genetic material (DNA) will be identical.
Identical twins are useful to understand the exact role of genetics and environment in a given phenotypic trait.
Learn more about identical twins here:
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How would a dislodged piece of plaque in the cardiovascular system most likely affect an otherwise healthy person?
A: The right pulmonary artery could become blocked, restricting blood flow to the right lung.
B: narrow region of the superior vena cava could become blocked, restricting blood flow to the heart.
C: smaller artery in a leg could become blocked, restricting blood flow to capillaries in the leg.
D: narrow vein in the brain could become blocked, restricting blood flow to capillaries in the brain.
You must explain your answer
Answer:
pulmonary artery could become blocked.
Explanation:
The right pulmonary artery could become blocked, restricting blood flow to the right lung. A narrow region of the superior vena cava could become blocked, restricting blood flow to the heart.