A bird stalks, kills, and then eats an insect. Based on its behavior, which pair of ecological terms describes the bird?
herbivore, decomposer
producer, heterotroph
carnivore, consumer
autotroph, herbivore
The answer is indeed C "Carnivore, Consumer."
Explain the relationship between the environment, variation, and selection.
Changing environmental factors can cause certain traits to be favored through natural selection . This can lead to changes in genetic variation .
Changing environmental factors can cause certain traits to be favored through natural selection. This can lead to changes in genetic variation. This group are composed of the environment includes suppliers, customers, competitors, employees. They are the Environment Specific.
What is genetic variation?Genetic variations could be defined as the changes in the DNA segments or the genes which arise in the organisms of the same species. The environment in which the species lives or that favors organisms with certain traits.Changing genetic variation can lead to selection of certain traits to be favored by the environment.
Just through the natural selection, the organisms which has been considered as the better adapted to live in an environment are just able to live and pass on their characteristics to their offsprings. Hence, these organisms would carrying the favorable trait has been favored by the environment.
Therefore, This can lead to changes in genetic variation. This group are composed of the environment includes suppliers, customers, competitors, employees. They are the Environment Specific.
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1. Derrick just got home from playing soccer on a muddy field. He is curious how different brands of laundry detergent compare in removing mud from clothes, so he sets up an experiment. In one laundry load, he puts his muddy socks with Brand A detergent. In the next load, he puts his muddy jersey with Brand B detergent. In the final load, he puts his muddy shorts with Brand C detergent. Afterward, he noticed that the jersey came out the cleanest. He concludes that Brand B is the best detergent for removing mud from clothes. Is his conclusion valid?
Derrick's experiment to determine the best detergent for removing mud is not necessarily valid because it lacks controlled variables and consistent testing conditions. Laundry detergents are used instead of bar soap because they are more soluble in a variety of water conditions and do not leave deposits. Lemon juice is more acidic than orange juice.
Derrick's conclusion that Brand B is the best detergent for removing mud from clothes is not necessarily valid because his experiment lacks controls and uses different items of clothing, which might not be comparable due to variations in fabric type, amount of mud, duration of mud on fabric, and other factors. To accurately compare the effectiveness of different brands of laundry detergent, it would be important to use identical conditions for each treatment, such as the same type of fabric, equal amounts and types of mud, and consistent washing conditions.
When doing a load of laundry, we don't just drop a bar of soap into the washing machine because soap molecules have a dual nature. The head dissolves in water, while the tail dissolves in oils and greases. Together, they form micelles that encase the dirt and allow it to be washed away. However, soaps can leave a film, especially in hard water. Laundry detergents contain synthetic surfactant molecules that are more soluble, even in hard water, and they do not leave soapy deposits.
Regarding the pH of juices, lemon juice with a pH of 2 is more acidic than orange juice with a pH of 4. The pH scale is logarithmic, so each whole number on the scale represents a tenfold difference in acidity. Therefore, lemon juice is 100 times more acidic than orange juice.
What caused the scientific community to accept Rutherford's atomic model?
Scientists explained the complete experiment.
Thompson approved Rutherford's experiment.
Rutherford recreated Thompson's experiment.
Other scientists repeated the experiment.
Answer:
The correct answer will be option other scientists repeated the experiment.
Explanation:
Ernst Rutherford is also known as "Father of nuclear physics" known for his planetary model of atom called "Rutherford model of the atom". He proposed and demonstrated the model in 1911 explaining that atom carries a small charged nucleus in the center which is surrounded by the tiny electrons.
The Rutherford's atomic model was accepted by the scientific community at that time because of the probable reason that his results were based on experiments which were also supported by the experiments of other scientists who repeated the experiments to check the accuracy and feasibility of the model. His experiments were repeated by a famous scientist and his student James Chadwick who discovered neutrons.
Thus, option other scientists repeated the experiment is the correct answer.
How do nucleotides provide nucleic acids with specific codes?
Answer:
The correct answer will be the arrangement and sequence of nitrogenous bases in DNA.
Explanation:
DNA molecule is a large bio-molecule made up of monomer unit called nucleotides. Each nucleotide is made up of a 5C sugar (deoxyribose and ribose), a phosphate group and four nitrogenous bases (adenine, cytosine, guanine, thymine and uracil in RNA).
These nitrogenous bases are bonded to another base on the complementary strand via hydrogen bond and it is the sequence of the arrangement of these bases in the DNA which provides the nucleic acids with its coding behaviour.
These nitrogenous bases are read by the ribosome during the process of translation in triplets which are made of bases and are known as "codons" and codes for the specific amino acids in a polypeptide.
Thus, arrangement and sequence of nitrogenous bases in DNA is the correct answer.
How old is justin bieber?
he is 25 years old as of 2019
Explanation:
Why is cytoplasmic streaming called "active mass movement of cytoplasm"? ...?
When algae is exposed to sunlight, blue and red wavelengths of light are absorbed by the algae to produce sugars. Energy from green wavelengths is not absorbed. How does this phenomenon validate the Law of Conservation of Energy?
Green wavelengths are reflected from the algae.
Green wavelengths do not contain any energy.
The algae are a closed system, so unused energy is allowed to exit the system.
The Law of Conservation of Energy applies to physical, not biological, systems.
Answer:
The correct answer would be Green wavelengths are reflected from the algae.
The law of conservation states that the total energy of a closed system remains the same. In simple words, energy is neither created nor it can be destroyed but it can change from one form to another.
Similarly, in photosynthetic organisms such as algae, green light is reflected in the surrounding due to they appear green in color.
The absorbed light (red and blue wavelengths) are converted into chemical energy (food) through photosynthesis.
It ensures that the total energy of the system remains the same and thus, the law of conservation of energy is not violated.
What might happen to the human heart during a trip to Mars?
A. stop working completely
B. become too weak to pump blood
C. expand and become too large to work properly
Answer:
B. becomes too weak to pump blood
Explanation: I just took the test.
Regardless of where people live, they depend on resources produced in __________.
wilderness areas
ocean areas
urban areas
rural areas
Imagine a population of rabbits with fur color that ranges from black to white. If this population were put in an area that has dark rocks that camouflage the black rabbits, as well as light stones that hide the white rabbits, what would most likely happen to the gray rabbits?
Gray rabbits would blend into either environment.
Gray rabbits would adapt to have black fur.
Gray rabbits would be eliminated by predators.
Gray rabbits would mutate to white fur.
The correct answer is option (C) Gray rabbits would be eliminated by predators.
Camouflage is an adaptation by organisms allowing them to blend with the environment. This helps them in surviving or escaping from their predators. It can be throught coloration or developing a particular pattern or mimicry.
The example given above is a type of camouflage through concealing coloration. Concealing coloration includes having a fixed camouflage and changing the camouflage depending on the environment. Grey rabbits cannot exhibit camouflage as the backgroud is dark rocks and light stones. As a result, these rabbits are clearly visible to the predators and get elimiated by them.
Gray rabbits in an environment with dark and light stones for camouflage would likely be at a disadvantage and potentially eliminated by predators over time. In a hypothetical situation where gray rabbits blend well, they might survive through diversifying selection.
If a population of rabbits with fur that ranges from black to white were put in an area with dark rocks and light stones, creating camouflage for the black and white rabbits respectively, the gray rabbits would likely be at a disadvantage. Since they do not blend in as well with either the dark rocks or the light stones, their intermediate color would provide less camouflage, making them more susceptible to being spotted by predators. This selective pressure could potentially lead to the gray rabbits being eliminated by predators over time.
However, in a hypothetical population where gray and Himalayan (gray and white) rabbits are better able to blend with a rocky environment than white rabbits, the presence of diversifying selection might favor the survival of these gray variants. In reality, the outcome would depend on the specific environmental conditions and the ability of the rabbits to hide or adapt.
What could happen to the environment if there were no environmental scientists to monitor it? a. decline in air, land and water pollution; no one to ensure proper disposal of toxic wastes; decreased destruction of habitats; increase in species extinction; b. great increase in air, land and water pollution; no one to ensure proper disposal of toxic wastes; increased destruction of habitats; increase in species extinction; c. problems with enforcing the preservation of certain ecosystems and wildlife; great increase in air, land, and water pollution; decreased destruction of habitats; increase in species extinction d. increased destruction of habitats, decrease in species extinction; problems with enforcing the preservation of certain ecosystems and wildlife; prevent the depletion of Earth's natural resources
An unconformity is a ______ of rock.
Answer;
-Missing layer
An unconformity is a Missing layer of rock.
Explanation;
-Unconformity is a break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time. The missing unit of rock is called an unconformity, defined as a period of either non-deposition or erosion separating two stratigraphic units of rock with different ages.
-There are three types of unconformity which are; disconformity, Nonconformity, Angular unconformity. Disconformity is sequence of parallel rock is missing. It is hard to see but very common. Nonconformity is a sedimentary rock layers lie on top of an eroded surface of a non-layered igneous or metamorphic rock. Layers are on top of non-layered rock. Angular unconformity exists between horizontal rock layers and eroded tilted or folded rock layers. The tilted or folded layers were eroded before horizontal layers formed above them.
Which picture illustrates the anaphase stage of mitosis?
The picture that illustrates the anaphase stage of mitosis :
A) Image A
The picture that illustrates the anaphase stage of mitosis is image A.In anaphase stage of mitosis:Chromosomes divides into half and is carried by spindle fibres.Constriction start to appear.Spindle fibres disappear.When the cell is in the stage of mitosis, it means that the spindle fibers have separated and are beginning to move towards the poles of the cell.Therefore, the correct option is A.
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Once proteins have been produced at the ribosomes what two organelles work together to aid in the secretion process
Answer:
Endoplasmatic reticulum and Golgi apparatus.
Explanation:
The endoplasmic reticulum is a cytoplasmic organelle present in animal and plant cells. This organelle is formed by bags and tubes and has the following functions: production of lipids, detoxification, storage of substances and production of proteins.
The golgi apparatus, on the other hand, is also a cytoplasmic molecule present in eukaryotic cells. Its functions are: storage of substances, transport of substances and the export of substances produced in the Endoplasmic Reticulum.
For this reason, we can say that after proteins are produced in the ribosomes, two organelles work together to help the endoplasmic reticulum and the golgi apparatus in the secretion process.
HELP ASAP
1.which of the following is always single stranded?
a dsRNA
B DNA
C mRNA
D DNA AND RNA
2 which of the following is a difference between DNA and RNA?
a RNA has thymine
b RNA contains lipids
c most types of RNA are double stranded
d they have different sugars
3 which of the following bases are found in RNA but not DNA?
a guanine
b cytosine
c adenine
d uracil
Four forces are being applied to move an object to the left. Force 1 is pushing to the right at 200N. Force 2 is pushing to the left at 500N. Force 3 is pushing to the right at 100N. Force 4 is pushing to the left at 50N. What's the net force acting on this object?
A.0N
B.650N
C.850N
D.250N
Answer:
250N
Explanation:
Force may be defined as a push or pull of an object. Force can change the shape, size and movement of any object.
Net force = Total force acting on left - Total force acting on right
Net force=Force 2 + Force 4 - Force 1 + Force 3
Net force=(500+50) - (200+100)
Net force= 250 N.
Thus, the correct answer is option (D).
How do i determine a phenotype??
Which phase is the busiest phase of the cell cycle
Balance the following chemical equation. CCl4 → C + Cl
Answer: The balanced reaction is CCl4 → C + 4Cl
A balanced chemical equation is the one, which contains equal number of atoms corresponding to each element participating in the reaction and having same charge for the reactants and the products.
In the given reaction CCl4 → C + Cl, the number of chloride atoms are imbalanced on both sides as it is four on the reactant side while it is one on the product side.
Thus, the balanced reaction for this is-
CCl4 → C + 4Cl
What two structure are "fertilized" during double fertilization
Final answer:
In double fertilization, one sperm cell fertilizes the egg cell to form a diploid zygote while another fertilizes the two polar nuclei to create a triploid endosperm, both of which are essential for the development of the seed in angiosperms.
Explanation:
The process you're inquiring about is double fertilization, which is a unique mechanism in angiosperms, or flowering plants. During this process, two structures are fertilized. The first is the egg cell, which, upon fertilization by one of the sperm cells, forms a diploid zygote. The second structure consists of the two polar nuclei found within the central cell of the ovule, which are fertilized by the second sperm cell to form a triploid endosperm. This endosperm will eventually provide nourishment for the developing embryo within the seed.
In the subsequent stages, the zygote divides to form two distinct structures: one develops into a suspensor, which anchors the embryo and facilitates nutrient uptake, and the other into the proembryo that eventually differentiates into the plant embryo. Following these events, the fertilized ovule develops into a seed which contains the embryo, and the surrounding ovary tissue matures into the fruit.
molecules "pumped" in or out from low to high concentration:
Answer:
Active Transport
Explanation:
During active transport, molecules move from an area of low concentration to an area of high concentration. This is the opposite of diffusion, and these molecules are said to flow against their concentration gradient. Active transport is called "active" because this type of transport requires energy to move molecules.
use photosynthesis in a sentence
Photosynthesis is the process by which green plants make glucose using solar energy, carbon dioxide, and water. This process takes place in the chloroplasts and results in the production of glucose and oxygen.
Photosynthesis is a process by which green plants synthesize glucose (C6H12O6) from carbon dioxide (CO2) and water (H2O) using solar energy. It takes place in the chloroplasts of plant cells, which contain chlorophyll, a pigment that captures light energy. During photosynthesis, plants convert carbon dioxide and water into glucose and oxygen, which are essential for their growth and energy needs.
Full question: Use photosynthesis in a sentence. Define it.
Which two structures would provide a positive identification of an animal cell under a microscope?
nucleus, vesicle
ribosome, lysosome
flagellum, lysosome
chromatin, chloroplast
The first. That is the answer
The nucleus and lysosomes would provide positive identification of an animal cell under a microscope due to their unique structures and biochemical markers. Chloroplasts and flagella are not specific to animal cells and therefore not definitive for identification. Ribosomes are common to all cell types and also not unique to animal cells.
The structures that would provide a positive identification of an animal cell under a microscope are the nucleus and lysosomes. The nucleus is a prominent organelle within eukaryotic cells that contains the cell's genetic material, and it can be identified by its structure as it is typically the largest organelle in the cell. On the other hand, lysosomes are membrane-bound organelles that contain digestive enzymes and can be identified biochemically by the presence of these enzymes. Neither chloroplasts, which are specific to plant cells and certain algae, nor flagella, which are not present in all animal cells, would be definitive for identifying an animal cell. Ribosomes, although found in all types of cells, are not unique to animal cells and hence are not definitive either.
Under an electron microscope, the isolated nuclei might be identified by their large size and the presence of nucleic acids which can be confirmed by molecular analyses. The Rough Endoplasmic Reticulum (RER) would be identifiable by the ribosomes attached to its membrane. Golgi vesicles and lysosomes can be distinguished by their morphology and contents; Golgi vesicles are often seen in stacks or cisternae, whereas lysosomes have a more regular, rounded shape.
Which level of classification includes the most species?
kingdom
domain
genus
class
Domain is the highest level of classification. Domain includes EVERY species.
Explanation:
According to the Woese system, launched in 1990, the tree of life consists of three domains three domains are the Archaea, the Bacteria, and the Eukarya. Prokaryotic organisms apply either to the domain Archaea or the domain Bacteria; organisms with eukaryotic cells apply to the domain Eukarya.
The level of classification that includes the most species would be the domain.
Level of classification
The different levels of classification of living organisms from the highest to the lowest are:
DomainKingdomPhylumClassOrderFamilyGenusSpeciesThe number of organisms in each level decreases from the highest to the lowest. Thus, the domain has the highest number of organisms while the species has the lowest number.
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What the name of six kingdoms
Answer:
plants, animals, protists, fungi, archaebacteria, eubacteria
Explanation:
Those are all the six kingdoms
what does the Krebs cycle produce?
The Krebs cycle produces CO2, NADH, FADH2, and ATP (or GTP) for each acetyl-CoA that enters the cycle. It turns twice for each glucose molecule that initiates glycolysis, resulting in doubled yields of these products.
Explanation:The Krebs cycle, also known as the citric acid cycle or the tricarboxylic acid cycle, is a key component of cellular respiration. In this cycle, each pyruvate molecule from glycolysis is first converted into a two-carbon molecule known as acetyl-CoA. The acetyl-CoA then enters the Krebs cycle and is further processed, leading to the production of CO2, and high-energy molecules such as NADH, FADH2, and ATP or GTP (equivalent to ATP in some organisms). During one turn through the cycle, the main outputs are:
Two molecules of CO2 (carbon dioxide)Three molecules of NADHOne molecule of FADH2One molecule of ATP or GTP through substrate-level phosphorylationAs the Krebs cycle turns twice per glucose molecule entering glycolysis, the eventual yield is doubled. Overall, the cycle plays an essential role in cellular energy production by transferring electrons to the electron transport chain, where most ATP is generated.
What happens when organic molecules decompose
Which statement below BEST summarizes the role of the DNA molecule in cells? A) guides cell division B) protects cells from infection Eliminate C) provides the instructions for making proteins D) regulates the chemical processes that provide the cell with energy
The correct answer here is c.
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