As we know an autotroph is an organism that is capable to elaborate its own food, like is the case of plants, from light and carbon dioxide they generate glucose, therefore humans and mouses are discarded as both organisms are heterotrophs, therefore the correct answer is option B.
Which type of UV radiation is the most damaging?
A. UV-B
B. UV-C
C. UV-A
D. UV-D
A dominant allele is ________.
Answer: A dominant allele is a variation of a gene that will produce a certain phenotype, even in the presence of other alleles.
Explanation:
How does contour plowing in farming help to prevent pollution?A. Contour plowing is used to reduce the amount of fertilizers used.B. Contour plowing is used to make insecticides less toxic.C. Contour plowing is used to reduce erosion and sediment pollution.D. Contour plowing is used to treat pathogens in livestock waste.
Plowing is a farming practice, that creates as its name says, contour lines, these lines are characteristic because they are placed perpendicular to the slope, for this reason, they are a method used to prevent erosion and retain water.
With this information in hand, we can see that option A is not correct because the use of plowing is related to soil loss and not to soil richness per se. Option B is not correct either because the use of insecticides is more related to the type of crop and surrounding vegetation cover. Option C in this case is the correct answer, it is used to reduce erosion and sediment pollution because helps retain soil. Finally, option D is not correct because this method is not related to livestock.
The acid test tells whether a mineral is,
A. an oxide
B. a carbonate
C. a silicate
D. a halide
i believe the answer is A carbonate.
Question 4 of 10In what way do adaptations help the survival of a species?OA. They increase the genetic diversity of the species.B. They reduce the number of alleles.OC. They ensure that many alleles are passed on.D. They prevent reproduction from happening.S
In this case, we need to remember certain concepts first adaptation, this refers to any trait that has evolved through natural selection and increases the fitness of the organism, genetically we are talking of a process bye which natural selection adjust the frequency of genes
2a. The enzyme called Pheide a Oxygenase (PAO) catalyses the degradation of chlorophyll. Mendel’s I gene (yellow peas) codes for this enzyme. If this gene is mutated, what will happen to the pea colour? 2b. What was discovered when looking at the PAO levels between heterozygous and homozygous plants? 2c. Gibberellin is a plant hormone that promotes the elongation of plant stems. It is produced in a series of reactions requiring an enzyme coded for by a specific gene. If this gene is isolated, and mutated, how will this affect the height of the plant?
The answers for the alternatives are:
a) The PAO enzyme catalyses the degradation of chlorophyl, when the gene for the production of PAO is mutated, the pea plant won't have a functional PAO, being the chlorophyl in that plant not degradated, in consequence the pea plants will remain green and not turn out yellow like their gene stipule by Mendel's Law.
b) When made the comparison between heterozygous and homozygous for PAO enzyme in plants, it was discovered that heterozygous will have half as much PAO as a homozygous dominant for the PAO gene, since the lower enzyme level is enough to produce PAO for the plant degradate chlorophyl.
c) If the gene for the enzyme related to promote elogation of plant stems is mutated, it is expected that the height of the plant will be lower than with the specific gene working, because the reactions and gibberellin production and distribution are directed affect by that genetic modification.
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Temperate grassland is best described by few trees, mostly grass , rich soil , cold winters, average rainfall , good for agriculture.
What is temperature grassland and what are its characteristics?Temperate grasslands are the regions mostly covered with grasses and grasses , with shrubs also and large trees.The temperature of temperate region is majorly cold and less than other forest regions.Comparing it with tropical forests which have subsequent exposure to sunlight due the present of such forest on the equator.The amount of rainfall in temperate regions is not that appreciable comparing to the regions of tropical regions and savannas.From agricultural point of view also temperate regions are so good and produces a good amount of plants.To know more about temperate grassland visit:
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Which statement describes the most likely effect of introducing aninvasive species to an ecosystem?A. It will make the ecosystem less stable, because invasivespecies have no natural predators and can outcompetenative species.B. It will increase the prey population, because predators nowhave a new food source.C. It will stabilize the ecosystem, because increasedbiodiversity always leads to a more stable ecosystem.D. It will lead to increased biodiversity, because a newspecies has been added to the ecosystem.
Answer
The correct answer to this question is the first one: A. It will make the ecosystem less stable, because invasive species have no natural predators, and can outcompete native species.
Explanation
Invasive species use to have a negative impact upon biodiversity, because they have not coevolved with the biotic and the abiotic elements
Help asap….
1. What is the total of all of the processes the body uses to keep its internal environment about the same?
A.homeostasis
B.homeomorphism
C.homeothermic
D.homeopathic
2. What word is used to describe the normal, or target, value for something?
A.sensor
B.effector
C.stimulus
D.set point
Sex-specific pheromones are used for communication in non-human mammalian species like rats, and are detected by:the olfactory epitheliumthe dentate gyruspapillaethe vomeronasal organ (VNO)
Pheromones are mostly detected by sensory neurons in the vomeronasal organ (VNO), a bilateral tubular structure in the anterior region of the nasal cavity.
Answer: the vomeronasal organ (VNO)
When iron reacts with oxygen, it forms iron oxide, or rust.
4 Fe + 3 O2 → 2 Fe2O3
Reactants
Products
#F
#F
#O
#O
Answer:
Explanation:
head of the humerus
head of the humerus
head of the humerus
head of the humerus
The amount of iron oxide formed from the reaction will be 179.7 g.
Stoichiometric problemFrom the balanced equation of the reaction below:
[tex]4 Fe + 3 O_2 -- > 2 Fe_2O_3[/tex]
The mole ratio of Fe to [tex]O_2[/tex] is 4:3
Recall that: mole = mass/molar mass.
Mole of 112 g iron = 112/56 = 2 moles
Mole of 24 g [tex]O_2[/tex] = 24/32 = 0.75 moles
Thus, [tex]O_2[/tex] appears to be the limiting reactant. Iron is in excess.
Mole ratio of [tex]O_2[/tex] and [tex]Fe_2O_3[/tex] = 3:2
Equivalent mole of [tex]Fe_2O_3[/tex] = 0.75 x 3/2 = 1.125 moles
Mass of 1.125 moles [tex]Fe_2O_3[/tex] = 1.125 x 159.69
= 179.7 grams
In summary, if 112 g of iron combines with 24 g of oxygen, 179.7 g of [tex]Fe_2O_3[/tex] will be produced.
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When iron reacts with oxygen, it forms iron oxide, or rust. 4 Fe + 3 O2 2 Fe2O3 If 112 g of iron (Fe) combines with 24 g of oxygen (O2), how much iron oxide is formed? A. 24 g Fe2O3 B. 136 g Fe2O3 C. 112 g Fe2O3 D. 88 g Fe2O3
Refer to the equation below to answer this question. What is this reaction? * 1 point
6C02
Carbon dioxide
Cellular Respiration
Photosynthesis
Hydrolysis
+
6H20 Light C6H12O6
Water
Sugar
+
602
Oxygen
The given reaction represents the process of photosynthesis.
Photosynthesis is the process by which plants synthesize their food. During photosynthesis, plants use carbon dioxide and water in the presence of sunlight to manufacture glucose (sugar) and liberate oxygen.
The reaction for photosynthesis can be given by the following equation:-
6CO2 + 6H2O + light ----> C6H12O6 + 6O2
Photosynthesis generally occurs in the leaves (which contain chloroplasts) of plants. The gaseous exchange takes place by means of pores called stomata, which are present in the leaves. Water is taken by the plants through the roots with the help of a vascular system. The chlorophyll pigment that is present in the chloroplasts within leaf cells is responsible for capturing sunlight.
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The ozone layer ______.
A. only exists over North America
B. surrounds the entire planet
C. exists mainly over places that are very hot
D. only exists over South America
Answer:
B is the answer
Explanation:
What’s the correct answer answer asap for brainlist
Answer:
letter c?
Explanation: The photic zone, is the surface layer of the ocean that receives sunlight. The uppermost 80 m (260 feet) or more of the ocean. Plus the coral reef tends to be quite illuminated at times. In addition to this, the coral reef is built out of many layers of dead cnidarians.
Which of the following is the weakest hypothesis for the question, "Is there evidence of water on Mars?"
OA.
OB.
O C.
OD.
There is water under the surface of Mars.
There might have been water but it's difficult to tell.
There was never water on Mars.
Mars once had a lake filled with water.
The weakest hypothesis for water on mars is that there was never water on Mars.
What is a hypothesis?A hypothesis is guess that tends to serve as a lead in the course of an experiment. Let us note that in order to begin the experiment, we must be able to ask a question which would set us on course for the investigation of the question.
In this case, we are looking at the hypothesis that is the weakest. This is the hypothesis that does not in any way portray the idea of water on the surface of the mars.
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Question 1
Which of the following statements about cellular division is/are correct?
All the answers are correct.
Replace old/dead cells (skin, hair, red blood cells)
Increase cell numbers (growth, bones), heal a wound
O Produce offspring and pass on their genetic material
1 pts
All of the suggested answers fit the question.
What causes cell division?The two distinct ways that cells divide are called mitosis and meiosis. Typically, mitosis—the process of creating new body cells—is what is meant when the word "cell division" is used. The process of cell division that yields sperm and egg cells is known as meiosis.
What is the proper order for the processes in cell division?There are six stages in this cycle: prophase, prometaphase, metaphase, anaphase, and telophase . Because cytokinesis is the final physical cell division after telophase, it is also referred to as the sixth stage of mitosis.
What mechanism divides cells?Cells divide in two different ways, mitosis and meiosis. The procedure of mitosis, which produces new body cells, is often when "cell division" is referred to. Meiosis is the name for the cell-division procedure that results in sperm and egg cells
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What’s the correct answer answer asap for brainlist
Answer:
They remove large quantities of carbon dioxide from the atmosphere and use the carbon atoms to build organic molecules. Without Earth's abundance of plants and algae to continually suck up carbon dioxide, the gas would build up in the atmosphere.
Explanation:
3 blanks please help me
Archaea are single celled and all prokaryotes. contain no cell nucleus. the ancient bacteria.
bacteria are single celled organism and are all prokaryotes contain no membrane bound nucleus.
What is cell?The basic and structural component of life is the cell. Cell biology is the study of cells, including their fundamental makeup and each organelle's functions. Cells were initially found by a biologist, Robert Hooke.
Cells comprise all living things. They could consist of several cells or just one (unicellular) (multicellular). The tiniest known cells are mycoplasmas. The foundation of all living things are cells. They give the body structure and transform the food's nutrients into energy.
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All the ants in one terrarium is a population of ants.
True
False
Answer: false? i think it is a population but its technically a colony
Explanation:
technically yes it is a population but for an exact answer its a colonie and if it more than one colony then it's a society if there are more than one species of creature then it is an ecosystem (i think)
Between which two atoms of water are hydrogen bonds are formed?
O A. between the hydrogen atom of one water molecule and the oxygen atom of another
OB.
between the hydrogen atoms of two water molecules
O C.
between the oxygen atoms of two water molecules
Between the hydrogen atoms of two water molecules the two atoms of water are hydrogen bonds are formed
Hydrogen Atoms and Water MoleculesTwo hydrogen (H) atoms and one oxygen (O) atom make up the three atoms that make up a water molecule. Because of this, water is occasionally abbreviated as H2O. In the case of water, hydrogen bonds occur between adjacent water molecules' hydrogen and oxygen atoms. A bond called a hydrogen bond is produced by the attraction between individual water molecules. The molecular makeup of water holds the key to understanding its chemical behavior. A water molecule has a bent overall structure and is made up of two hydrogen atoms bound to an oxygen atom. This is because the oxygen atom additionally carries two pairs of unshared electrons in addition to making bonds with the hydrogen atoms.
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3 blanks please help me find
give an example of when a lions roar being silent would be advantageous in a population of lions.
Solution:
Roaring is an integral component of African lion ecology as it facilitates social cohesion and territorial defense. In fact, as both a social and territorial species, communication is essential to lion ecology and roaring is perhaps the most important vocal cue.
An example of the importance of the roar would be that lions can discriminate between resident and non-resident lions, determine the relative risk of encountering unfamiliar lions, and detect the ratio of residents to intruders from roaring choruses.
Identify the organism below and the structure it uses to move.A. Paramecium; ciliaB. Protozoan; flagellaC. Amoeba; pseudopodD. Parasite; contractile vacuole
Cilia are hairlike structures that some protozoans, such as the paramecium, used to move. Thus, the answer is A.
Ribosomal subunits are manufactured by the?
Ribosomal subunits are made by the nucleolus. The
Ribosome contains two different subunits, both of which are required for translation. The small subunit (“40S” in eukaryotes) decodes genetic messages, while the large subunit (“60S” in eukaryotes) catalyzes the formation of peptide bonds.
In eukaryotes, rRNA is assembled into four strands on the ribosome and into three strands in prokaryotes. Eukaryotic ribosomes are produced and assembled in the nucleolus. Ribosomal proteins enter the nucleolus and bind four rRNA strands to form the two ribosomal subunits (small and large) that make up the complete ribosome. The
Ribosomal units exit the nucleolus through the nuclear pore and enter the cytoplasm where they bind for protein synthesis. When no protein is produced, her two subunits of the ribosome separate.
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The nucleolus manufactures ribosomal subunits. The ribosome contains two different subunits, both of which are required for translation.
What are ribosomal units?Both of the two distinct subunits found in ribosomes are necessary for translation. The big subunit (designated the 60S in eukaryotes) catalyzes the synthesis of peptide bonds, while the small subunit (designated 40S in eukaryotes) decodes genetic signals.
The ribosome assembles rRNA into three strands in prokaryotes and four strands in eukaryotes. The nucleolus is where eukaryotic ribosomes are made and put together. The two ribosomal subunits (small and big) that make up the entire ribosome are formed when ribosomal proteins bind four strands of rRNA inside the nucleolus. The
Therefore, the ribosomal subunits are produced in the nucleolus. Both of the two different subunits found in the ribosome are necessary for translation.
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An intron is a segment of RNA found in pre-messengerRNA (pre-mRNA) molecules. It must be removed to makethe mRNA molecule functional. Some introns are capableof catalyzing the reaction that removes them from largerRNA molecules.What is the intron acting as in this scenario?OA. A lipidB. A membraneOC. An enzymeOD. A carbohydrate
If the intron is capable of catalyzing the reaction that removes introns from larger RNA molecules, that intron is acting as an enzyme (c). That's because enzymes are the type of molecules capable of catalyzing reactions.
1) Lions, zebras, and giraffes can be found in this biome ~(Hint: _ a _ _ _ _ a _).
2) A swampy coniferous forest that usually borders the tundra ~(Hint: _ _ _ g _).
3) Zone of the marine ecosystems that light touches ~(Hint: _ _ _ t _ _).
Answer: 1. Savanna 2. Taiga 3. Photic
Explanation:
Pelvic spurs are vestigial structures. What is a vestigial structure?
Vestigial structures are an anatomical feature that no longer has a purpose in the current form of the organism, they do not have a apparent function like the pelvic spurs, human appendix and tail bone. It is most likely to be a residual part from a past ancestor.
Which antacid is the most effective in neutralizing acid ALKA SELTZER OR ROLAIDS?
Answer: alka-seltzer
Explanation:
it is calcium carbonate and is most potent and can completely neutralize stomach acid
Match the cell type (sex cell or somatic cell) with the examples provided.a. white blood cellb. spermc. egg (ova)d. hepatocyte (liver cell)e. epithelial (skin) cell
Sex cell is a gamete cell, used in sexual reproduction. which means that it will have half of the amount of chromosomes that other cells does, so it can merge with another sex cell and create a daughter cell (that is somatic) that has genetic material from both sex cells.
Somatic cell is every other cell, building our organs and our body, and it contains twice the amount of genetic material that's present in sex cells.
Therefore, we can match the examples as follows:
a. white blood cell - SOMATIC CELL
b. sperm - SEX CELL
c. egg (ova) - SEX CELL
d. hepatocyte (liver cell) - SOMATIC CELL
e. epithelial (skin) cell - SOMATIC CELL
As the mass increases, the
acceleration ?
When the body of the mass increases the acceleration decrease.
According to newton's second law of motion Force equals the rate of change of momentum. F = m * a . It can also be represented as [tex]\frac{f}{a} = m[/tex]
where F = Force
m = mass of an object
a = acceleration
Mass and acceleration are inversely related, if the mass of an object increases the acceleration of the body decreases, and vice versa.
Basically when you put more weight on a moving the motion or the movement of the body decreases due to the heavyweight.
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