Answer:
Simply it states that the progress of development of an organism is a recapitulation of the organism's evolutionary history, and thus its progeny.
Explanation:
Hence based on this the stages of developments of an embryo are similar to developments stages seen in adult forms.Therefore it is can be stated as recapitulation of phylogeny by ontogeny . Thus the developmental stages observed in an embryo, are summary oft he adult forms of its progeny.Therefore, studying this developmental stages in an embryo is in effects studying the diversification of life on earth, and its history.
In summary the developmental stages of the embryo is a good method to detect the similarities between taxa, and findings from these can provide evidences that their is a common ancestry for all species of organism on earth.
Where does the electron-acceptor molecule
transfer electrons?
photosystem 1
photosystem II
the thylakoid space
the electron transport system
Answer:
The answer is photosystem 1
Explanation:
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Answer: A.) photosystem I
Explanation: i hope this helps :)
The cells in this part of a plant form long, vertical tubes. What is the mostlikely relationship between the structure and function of these specialized cells? A. The tubes allow the plant to absorb sunlight for photosynthesis. B. The tubes prevent potential damage to the leaves caused by strong winds. C. The tubes prevent water loss from the leaves. D. The tubes allow water and nutrients to be transported throughout the plant
this is xylem and the answer is D. The tubes allow water and nutrients to be transported throughout the plant
Que son las células procariotas?
Answer:
En biología, con el término procariotas se hace referencia a las células que no tienen un núcleo formado, en contraste con las células que han formado un núcleo, las células eucariotas.
Estas células tienen una estructura más simple que las células eucariotas y son de menor tamaño. Externamente, las células procariotas están separadas del medio ambiente por la membrana celular, pero internamente no tienen ninguna otra formación. En su mayor parte, los organismos procariotas son unicelulares y pertenecen al grupo de bacterias.
Match the chemical reaction with its correct type.
1. Nat + Cl → NaCl
decomposition reaction
2. CCIA C + 2Cl2
exchange reaction
3. HCl- + NaOH → NaCl + H2O
reversible reaction
4. ADP + P + E = ATP
synthesis reaction
hope it will help uh.....
Answer:
Match the chemical reaction with its correct type.
1. Nat + Cl → NaCl
decomposition reaction
2. CCIA C + 2Cl2
exchange reaction
3. HCl- + NaOH → NaCl + H2O
reversible reaction
4. ADP + P + E = ATP
synthesis reaction
Explanation:
Match the chemical reaction with its correct type.
1. Nat + Cl → NaCl
decomposition reaction
2. CCIA C + 2Cl2
exchange reaction
3. HCl- + NaOH → NaCl + H2O
reversible reaction
4. ADP + P + E = ATP
synthesis reaction
To what kingdom do coccidia belong? Monera, Animalia, Protista, Protozoan
Answer:
Protozoan
hope this help you
Which statement describes a parasite? A parasite is beneficial to its host. A parasite is harmed in its relationship with the host. A parasite only benefits when the host is alive. A parasite always kills its host and takes all the nutrients.
Answer:
A parasite only benefits when the host is alive.
Explanation:
Answer:
(C). A parasite only benefits when the host is alive
Explanation:
your welcome slime
The Punnett square shows the results when two parent cows are crossed.
R represents the allele for red hair, and r represents the allele for white hair.
Which best describes this inheritance pattern?
A) Incomplete dominance because the intermediate form of the trait is chosen
B) Co-dominance because the intermediate form of the trait is chosen C) Incomplete dominance because the offspring display alleles for both hair colors
D) Co-dominance because the offspring display alleles for both hair colors
Answer:
A
Explanation
the red haired trait is dominant over the white haired trait. and the results are all red haired offspring. therefore its incomplete dominance
The correct option is D) Co-dominance because the offspring display alleles for both hair colors.
What is Co-dominance?Co-dominance refers to a phenomena, in which both alleles are simultaneously expressed in the heterozygote.
Incomplete dominance is closely related to Co-dominance in which phenotype of the progeny is intermediate of the parent phenotype.
Here, the red haired trait is dominant over the white haired trait and still both alleles are simultaneously expressed in the heterozygote of the offspring with red and white hair traits, thus, the Co-dominance best describes this inheritance pattern.
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Question 11 (5 points)
Which of the follow best decribes the function of a ligament?
Connect muscles to other muscles
Connect muscles to the nervous system
Connect bones to other bones
Connect muscles to bones
Answer:
Connects Bones to other Bones.
Explanation:
A ligament is a tissue that connects two bones together to form a joint.
Answer:
connect bones to other bones
Explanation:
Ligaments connect bones to other bones. Tendons connect bones to muscles.
Protein is needed for growth and repair.
The digestion of protein begins in the stomach and is completed in the small intestine,
What are the products of the digestion of protein.
Tick the correct box
amino acids
energy
sugars
vitamins
1 mark
Amino acids
O Energy
O Sugars
Vitamins
Answer:
Amino acids
Explanation:
Hope it helps.
when a vegtalble is place in very salty water it becomes shriviled up why does this happen
What term best describes the difference in colors of the birds below?
a term you can use could be Variety or a Variant
Answer:
genetic variation or variety
Explanation:
What is a substrate? a molecule that acts as a catalyst a place where the reaction occurs a place on the product where the enzyme fits a reactant that is catalyzed by an enzyme
Answer:
a reactant that is catalyzed by an enzyme
Explanation:
Reactants are often referrred to as substrates as those are what enzymes mostly act upon to create products or some desired consequence
Option (d). a reactant that is catalyzed by an enzyme is called the substrate.
SubstrateA substrate exists as a molecule on which an enzyme acts. Enzymes catalyze chemical reactions that concern substrate, where the substrate binds to the enzyme's active site, and an enzyme-substrate complex is created. By action of the enzyme, the substrate exists transformed into a product, released from the active site, and free to obtain another substrate.
Enzyme catalysis exists as the increase in the rate of a process by a biological molecule, an "enzyme". Most enzymes exist in proteins, and most such processes are chemical reactions. Within the enzyme, naturally, catalysis happens at a localized site, called the active site.
The reactant in an enzyme-catalyzed reaction is named a substrate.
Because enzymes can expand reaction rates by enormous factors (up to 1017 times the uncatalyzed rate) and tend to be very precise, typically producing only a single product in quantitative yield, they exist the focus of active research.
Hence, Option (d). a reactant that is catalyzed by an enzyme is called the substrate.
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Antimicrobial peptides can do all of the following except:_________A) regulate body temperature.B) target intracellular components.C) insert themselves into target cell membranes.D) disrupt plasma membrane and/or cell wall.E) stimulate leukocytes.
Answer:
Option A
Explanation:
Antimicrobial peptides cannot regulate body temperature. They can do all of the rest.
=> target intra cellular components.
=> insert themselves into target cell membranes.
=> disrupt plasma membrane and/or cell wall.
=> stimulate leukocytes.
This element is a gas that is found in both nucleic acids and in amino acids, important building blocks of life. What is it? A. Nitrogen B. Sulfur C. Oxygen D. Carbon My answer is: A) Nitrogen
Answer:
Yes, your answer, nitrogen, is correct (the most appropriate option). However, oxygen is also a correct option.
Explanation:
Nitrogen exists on its own as a diatomic gas. However, it exists as organic nitrogen in nucleic acids such as DNA and RNA (as part of their nitrogenous bases) and in the amino (--[tex]NH_{2}[/tex]) group of amino acids.
Do note that a case can also be made for oxygen as a right option: like nitrogen, it exists as a diatomic gas and can be found in both nucleic acids and in the carboxylic group of amino acids.
Sulfur is not an appropriate option as nitrogenous bases (and nucleic acids) to the best of my knowledge do not contain sulphur although some amino acids like cysteine do.
Carbon is not also an appropriate option because elemental carbon does not exist in gaseous form even though it can be found in both nucleic acids and amino acids.
what are the 4 phases of mitosos
Answer:
prophase, metaphase, anaphase, and telophase.
Explanation:
This requires you to use all the things we have learned in this chapter. 1.55 grams of Carbon disulfide
is added to 2.83 grams of Oxygen to form Carbon dioxide and Sulfur dioxide. If the reaction yields
1.1 grams of the Sulfur dioxide what was the percent yield?
27%
14%
Ο Ο Ο Ο Ο
74%
42%
O 63%
Answer: The percent yield is, 42%
Explanation:
To calculate the moles :
[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]
[tex]\text{Moles of carbon disulphide}=\frac{1.55g}{76g/mol}=0.020moles[/tex]
[tex]\text{Moles of oxygen}=\frac{2.83g}{32g/mol}=0.088moles[/tex]
The balanced chemical reaction is:
[tex]CS_2+3O_2(g)\rightarrow CO_2+2SO_2[/tex]
According to stoichiometry :
1 moles of [tex]CS_2[/tex] require = 3 moles of [tex]O_2[/tex]
Thus 0.020 moles of [tex]CS_2[/tex] will require=[tex]\frac{3}{1}\times 0.020=0.060moles[/tex] of [tex]O_2[/tex]
Thus [tex]CS_2[/tex] is the limiting reagent as it limits the formation of product and [tex]O_2[/tex] is the excess reagent.
As 1 mole of [tex]CS_2[/tex] give = 2 moles of [tex]SO_2[/tex]
Thus 0.020 moles of [tex]CS_2[/tex] give =[tex]\frac{2}{1}\times 0.020=0.040moles[/tex] of [tex]SO_2[/tex]
Theoretical mass of [tex]SO_2=moles\times {\text {Molar mass}}=0.040moles\times 64g/mol=2.56g[/tex]
Actual mass of [tex]SO_2[/tex] = 1.1 g
Now we have to calculate the percent yield
[tex]\%\text{ yield}=\frac{\text{Actual yield }}{\text{Theoretical yield}}\times 100=\frac{1.1g}{2.56g}\times 100=42\%[/tex]
Therefore, the percent yield is, 42%
You are now taking a ride on the Magic School Bus with Ms. Frizzle. This bus is magic because it can go anywhere within the body. Today’s lesson is on Central Dogma. Ms. Frizzle takes your class directly to the nucleus to start your field trip. Since this trip is about the central dogma, what three major cellular process will be involved? Where will you bus be going within the cell during each of these processes? For each process, describe in your own words and in general what is going on?
Answer:
See the answer below
Explanation:
The trip will involve a bit of stoppage inside the nucleus during which replication and transcription will take place before proceeding to the cytoplasm where synthesized mRNA will become translated into protein.
The central dogma refers to a series of processes during which genetic information in the DNA of a cell is encoded and expressed in living cells. The 3 major steps involved in these processes are:
1. Replication
2. Transcription
3. Translation
Replication involves the synthesis of a double-stranded DNA molecule from a template of another double-stranded DNA molecule within the nucleus. In order words, replication is a process during which a DNA molecule reproduces itself. Each of the strands of the DNA acts as a template for the synthesis of another new strand. Eventually, 2 new double-strand DNA molecules are formed each consisting of one old strand and one new strand.
During transcription, the information contained in deoxyribonucleic acids is encoded and transcribed into another molecule known as the messenger ribonucleic acid. This process happens in the nucleus of the cell.
After transcription and processing of the mRNA produced, the resulting mRNA is then transported to the cytoplasm where, together with the ribosome and transfer RNA, the encoded information becomes translated into protein. Each of the genetic codes in the mRNA is translated to their respective amino acids and the amino acids are linked together by peptide bonds to form a protein.
In the trophic level pyramid above, what segment represents the placement of a herbivore?
The answer to your question is a trophic level of carnivores
Only a fraction of the energy available at one trophic level is transferred to the next trophic level.
Since carnivores are above herbivores in the trophic levels, herbivores have more energy than carnivores.
Hope this helps and have a great day!
why don't dog's sweat
Answer:
Dogs do sweat. Sweating is a physiological response to heat where sweat glands secrete salty water. ... The problem is that most dogs are covered with a thick coat of fur, so sweat secreted where there is fur would get trapped in the fur, fail to evaporate, and therefore fail to cool the dog down much.
:
Explanation:
They do sweat. but that is absorbed by the fur of dog.
hope it helps
How did the carbon, hydrogen and oxygen atoms in glucose and fructose combine to form sucrose? Include in your description which atoms bonded together from fructose and glucose to form sucrose and which atoms reformed to create a water molecule.
Answer:
oxygen atom and 1 hydrogen atom from the glucose molecule and 1 oxygen atom from the fructose molecule were taken to make the water molecule The rest of the atoms in the glucose and fructose molecule (glucose 6:carbon,11 Hydrogen,5 oxygen.Fructose 6 carbon:12 Hydrogen,5 oxygen.(combine to make sucrose(12 carbon,22 Hydrogen, 11 oxygen.Explanation:
Please,i need a Brainliest.
Answer:
1 oxygen atom and 1 hydrogen atom are taken from the glucose molecule and 1 oxygen atom from the fructose molecule will make a water molecule. Everything else from the glucose and fructose molecules will make sucrose.
How do catalyst work?
Answer:
Catalysts increase the reaction rate of a chemical reaction, allowing it to use less energy to start a chemical reaction and doesn't change the chemical properties or formulas.
Explanation:
You have a cup of beans in front of you with 20 white beans and 20 red beans. (You can also use candy, buttons, or coins). These beans represent the alleles for a simple Mendelian trait, where red is dominant (R) and white is recessive (r). The cup holds the alleles for an entire population (the gene pool).
Assess the gene pool. How many alleles of each kind are present in your overall population?
1. Dominant: 0, Recessive: 40
2. Dominant: 40, Recessive: 0
3. Dominant: 20, Recessive: 20
4. Dominant: 20, Recessive: 0
5. Dominant: 0, Recessive: 20
Answer:
Number 3
Explanation:
Dominant: 20, Recessive: 20
An allele is the alternative of a gene. On his case, these beans represent the alleles for a simple Mendelian trait, where red is dominant (R) and white is recessive (r).
As states earlier there are 20 red beans (20 dominant alleles) and 20 white beans (20 recessive beans) and each beach represent an allele.
What is the ecological relationship between the monk seal and the octopus/eel/triggerfish?
Answer:
The monk seal and the octopus/eel/triggerfish also live in close proximity to each other and have an ecological relationship between them. The monk seals are the predators to octopus/eel/triggerfish in the ocean.
The monk seal preys on octopus/eel/triggerfish in the ocean for their survival and competes with sharks and other marine animals for food.
Hence, the monk seal and the octopus/eel/triggerfish have ecological relationship of the predation in which one animal feed on another.
The ecological relationship between the monk seal and the octopus/eel/triggerfish - predator and prey.
The monk seals are seals with no ear and are found in the tropic climate.
These are the organisms that are live in close proximity to the octopus/eel/triggerfish.The seals are the predators to eels, triggerfish and octopuses at the bottoms of the ocean floor.Sharks are present in the same habitat and feed on the same organisms so they are in competition.Thus, the ecological relationship between the monk seal and the octopus/eel/triggerfish - predator and prey.
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Which are considered two of the special properties that are used to identify certain minerals?
O hardness and luster
O magnetism and fluorescence
O streak and color
O cleavage and fracture
Answer:
The answer is
2. magnetism and fluorescence
Explanation:
The other properties mentioned are common properties that are used to identify all minerals. As you can see, hardness, color and fracture are common properties that cut across all minerals. Magnetism and fluorescence however, are not very common and are found in only a few special minerals. That is why they are considered special properties.
Hope this helps!
magnetism and fluorescence are considered two of the special properties that are used to identify certain minerals. Thus option B is correct.
what are the properties to identify an object ?
Minerals are the chemical compound which has a well -defined composition and a specific crystal structure and occurs naturally in the pure form.
If a compound occurs naturally in different crystal form then it is referred as a different mineral. The chemical composition of a mineral varies depending on the presence of small impurities which are present in small quantities.
Some minerals can have variable proportions of two or more chemical elements which occupy equivalent position in the crystal structure; it has variable composition which is split into separate species.
minerals include color, streak, luster, specific gravity and cleavage as their physical properties, shows no magnetism. Basically magnetism is the physical property of the minerals, magnetism does not have these elements. thus, have no magnetism called diamagnetic. Examples of diamagnetic are quartz, apatite and calcite.
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A particular protein (Vac8) found in yeast has this N-terminal sequence, Met-Gly-Ser-Ser-Cys.... The corresponding DNA sequence in the coding strand is 5' ATG GGC TCA TCG TGC.... If the DNA sequence is mutated to 5' CTG GGC TCA TCG TGC..., what will happen to this VAC8 gene? (in RNA, CUG codes for Leu)
Answer:
The protein will not be synthesized because this point mutation produces the loss of the start codon (substitution of Met by Leu).
Explanation:
The mutations are changes in the DNA sequence that have diverse effects on protein synthesis. A mutation in the start AUG codon may lead to the reduction and even the elimination of protein synthesis. In consequence, this type of point mutation is usually referred to as 'start-loss mutation'.
What is the current classification of bacteria formerly termed members of the Bethesda-Ballerup group? g
Answer:
Explanation:
This group is made up bacteria that utilizes of citrate and are slow lactose-fermenting. They belong to the family Enterobacteriaceae which share some particular feature with the lactose-fermenting citrobacters.
Thus, they have now been included in the genus Citrobacter with no regards to how fast or slower their lactose fermentation is.
Exchange of respiratory gases takes place in an earthworm through (A) moist skin (B) gills (C) trachea (D) lungs
The lungs is the answer
Explanation
Earthworms do not have specialized respiratory organs like we do; instead, they take in oxygen and expel carbon dioxide directly through their skin. Oxygen diffuses through the earthworm's body surface and diffuses inward to the network of capillaries lying just under the body surface.
Answer:
I believe skin is the answer on edg.
Explanation:
Select all that apply.
A food chain or food web can provide good information including
the flow of energy in an ecosystem
the eating patterns of organisms
thing
the types of food that are best for you to eat
how much energy is transferred from one organism to another
MOTORICTION
DCAN NEYT SECTION
ACV AD UUD
Answer:
the eating patterns of organisms thing
Which word identifies the hanging icicle-shaped formations in caves that are created by deposition?
Answer:
Stalactites
Explanation:
A stalactite is a type of formation that hangs from the ceiling of caves, hot springs, or manmade structures such as bridges and mines. Any material that is soluble, can be deposited as a colloid, or is in suspension, or is capable of being melted, may form a stalactite.
Answer:the answer is,
Stalactites
Explanation:
I just took the test
During the process of mountain building, earthquakes sometimes occur along continental-continental converge
boundaries. Which statement best describes the motion of the plates along these boundaries that causes the
earthquakes?
Answer:
The main cause of earthquake is the motion of tectonic plates which occurs due to friction.
Explanation:
The tectonic plates moves slowly inside the earth crust but the edges of these plates stuck with each other due to friction that occurs during their contact. When these two plates detached from each other, the force of friction converts in a form of wave energy which can be observed in the form of earthquake. Divergent, convergent, and transform are the three types of plate boundaries which are responsible for earthquake.
Answer:
D) The plates smash together with no subduction
Explanation:
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