Answer:
The experiment performed by Francesco Redi supports the hypothesis that fly larvae only come from adult flies based on his experiment design using a covered-meat and non-covered meat. In addition, he also believed that maggots came from the fly rather than from the rotten meat by using the same experiment design.
What mode of nutrition distinguishes animals from fungi, both of which are heterotrophs?.
Answer:
Fungi will absorb their nutrition through their exterior glands while animals consume their nutrition through ingesting other organisms.
Are bears producers or consumers? Explain your reasoning.
Answer:
Bears play the role of consumer in a forest ecosystem.
Explanation:
Bears are omnivores, meaning they get their energy from both producers and other consumers.
Bears are another example of consumers. Black bears are omnivores and scavengers, like skunks and raccoons, which means that they will eat just about anything. In a forest community, black bears will eat blueberries, bugs, acorns, and many kinds of nuts.
The bear is a primary consumer as it directly feeds on plants, berries in this case. The bear, when eats rodents, becomes a secondary consumer. Rodents feed on grass, so is a primary consumer.
Bears play the role of consumer in a forest ecosystem.
What are consumers?Consumers are living things that must seek, gather, and consume their food. Customers must eat to refuel or they will perish. Omnivores, carnivores, herbivores, and decomposers are the four different categories of consumers.
Zooplankton, butterflies, rabbits, giraffes, pandas, and elephants are a few examples of primary consumers. Herbivores are the main consumers. Their primary food source is either plants or creatures at the first trophic level of the food chain. Autotrophs are another name for plants.
Primary consumer, mostly herbivores, exist at the next level, and secondary and tertiary consumers, omnivores and carnivores, follow. At the top of the system are the apex predators: animals who have no predators other than humans.
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Word Bank
protein molecule: structure
trait: variation
Why do these sisters have different traits? Use the above words in your response, describing what would determine these traits at the molecular scale.
Differences at the molecular level or in the genes will result in variations in the proteins for which the genes code, resulting in trait variation.
Why these sisters have different traits?Each child inherits two copies or variants of each gene, one from their mother and one from their father. Because each offspring might inherit a unique mix of gene versions, siblings can exhibit features that differ from one another and from their parents. The right girl has straight hair, whereas the left girl has curlier hair. A gene encodes a particular protein that is involved in the expression of a characteristic. Because proteins perform much of the chemical activity inside the cell, they primarily decide the qualities and whose they are. Another thing to keep in mind is that genes are made up of molecules. Like a spiral staircase, thin threads curled around each other.
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How could you use the steps for evaluating a player for a concussion in evaluating whether someone is concussed? Please I really need help on this <3
A baseline concussion test is often performed using a computer for evaluating a player whether someone is concussed.
What do you understand by concussion test?Testing for concussions measures your brain's recovery from a head injury. Questionnaires or symptom checklists are the main components of most concussion assessments. Concussion exams evaluate your mental agility, memory, focus, awareness, and ability to solve tasks. Your coordination and balance are also tested. One of the methods used to identify a concussion is concussion testing. Concussion tests are used by medical professionals, athletic trainers, and coaches to assess brain function before and after a head injury.
Thus from above conclusion we can say that a baseline concussion test is often performed using a computer for evaluating a player whether someone is concussed.
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a bilateral symmetrical adult animal that has ecto, meso and endoderm derived tissues along with a notochord belongs to which phylum or subphylum?
Vertebrata: Subphylum of Chordata. Chordata is the final animal phylum. All of its members, known as chordates, have a head, a body cavity, and a digestive system.
Are notochords present in chordates?The notochord is the distinguishing feature of the chordates and plays crucial roles in the development of vertebrates. It acts as a major skeletal component of the growing embryo as well as a source of midline signals that design neighboring tissues.
What kinds of creatures have bilateral symmetry?The great majority of animals, including insects, fish, amphibians, reptiles, birds, mammals, and the majority of crustaceans, have bilateral symmetry.
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The phylum Chordata or subphylum vertebrata is made up of bilaterally symmetrical adult animals with ecto, meso, and endoderm derived tissues and a notochord.
what are chordates?
The phylum Chordata and the kingdom Animalia both have vertebrates as members. The four distinguishing characteristics of animals in the phylum Chordata are a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a postanal tail. These characteristics all arise at some point throughout animal development. Some of these are only present during embryonic development in certain groups.
Additionally, chordates have a segmented body, triploblastic, bilaterally symmetrical, and coelomic skeleton.
The body design is intricate and distinctive.
Organ systems are the level of organization found in the body.
The notochord, a flexible, rod-shaped structure present in all chordate embryos and in the adult stages of some chordate species, is the source of the name "Chordate," which refers to a group of organisms. It supports the skeleton along the entire length of the body and is situated between the digestive tract and the spinal cord.
The class Vertebrata includes all vertebrates. Vertebrates have all four of the chordates' defining qualities, but they also have derived traits that set them apart from invertebrate chordates. Vertebrata gets its name from the vertebral column, which is made up of distinct bones called vertebrae that are linked together to form the backbone. The notochord, which is only present in the embryonic stage, is replaced by the vertebral column in adult vertebrates.
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Why do twins Lucy & Maria look so different? Explain how Lucy and Maria truly are fraternal twins, yet look so different from one another.
-Use our model of Gamete Formation to support your explanation.
-How does the hereditable information get from the parents to the offspring?
In your own words: What is crossing over? Why do we do it?
Fraternal twins are twins or embryos, produced from two different egg and sperm, and genetically distinct.
According to this question, Lucy and Maria as seen in the above image are twins but they look so different. This is because they are products of the different sperms and egg cells. They only shared the same womb.
Crossing over refers to the exchange of DNA (genetic material) between paired homologous chromosomes (one from each parent) that occurs during the development of egg and sperm cells (meiosis).
Crossing over occurs during gamete formation so as to enable that genetic diversity occurs between species of an organism.
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The arrows point to the genetic material in each type of cell. What is different about how it’s stored in each type of cell? Is it organized? Can it be found in one small area?
Answer:The nucleus
The nucleus (plural, nuclei) houses the cell's genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm.
Explanation:These cells are different because they use the same set of genes differently. So even though each of our cells has the same 20,000 or so genes, each cell can select which ones it wants to “turn on” and which ones it wants to keep “turned off”.
100 points and will mark brainliest
Answer:
offspring are identical to the parents
extremely efficient
passive transport is the movement of molecules across the cell membrane without requiring an input of cellular energy. identify which of these options are examples of passive transport.
A. True
B. False
Passive transport is the movement of molecules across the cell membrane without the need for the input of cellular energy. This statement is true.
What is difference between Plasma Membrane and Passive Transport?Plasma membranes allow special substances to enter and exit the cell, preventing harmful material from entering and essential material from leaving. Plasma membranes are selectively permeable allowing some substances through while restricting others. If they give up this selectivity, the cell will be unable to fortify itself, and will be wiped out.
Most direct forms of membrane transport are passive. Passive transport is a naturally occurring phenomenon and does not require the cell to expend energy in order to carry out the movement.
Passive transport relies on the second law of thermodynamics instead of using cellular energy such as active transport which drive the movement of substances across cell membranes.
Thus, Passive transport is the movement of molecules across the cell membrane without the need for the input of cellular energy. This statement is true.
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Which of these elements was not found by Curie to be radioactive?
A
radium
B
uranium
C
polonium
D
scandium
Answer: D
Explanation: I do lots of research on her shes awsome she found out radium, uranium, and polonium were in fact radioactive
Would it be a female with a disorder as the karyotype?
Girls and women normally have two X chromosomes (46,XX karyotype), whereas boys and men typically have one X and one Y chromosome (46,XY karyotype ).
Which karyotypes are exemplified here?22 sets of autosomal chromosomes and one set of sex chromosomes make up the average human karyotype. Two X chromosomes are present in the most prevalent karyotypes for females, which are designated as sex XX. The X and Y chromosomes, which are referred to as XY in the case of males, are often present.
XXY syndrome can also affect women.There have been a small number of reports of 47,XXY individuals with a feminine phenotype. These people exhibit favorable SRY (testis-determining factor). This phenomenon's genetic cause is not fully understood. Case: A woman, 34, who had a 47,XXY karyotype and testicular feminization, appeared.
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Need help on this question can anybody help me ?
The answer is G1 stands for Gap 1 phase
S stands for Synthesis phase
G2 stands for Gap 2 phase and
M stands for Mitosis phase.
What is interphase?
The eukaryotic cell cycle's interphase phase is the longest. The cell gathers resources, makes and utilizes proteins and other substances, and initiates cell division by reproducing its DNA during interphase. Three separate stages—Gap 1, Synthesis, and Gap 2—makeup Interphase.
G1 Phase- The cell physically expands, duplicates organelles, and produces the molecular building blocks it will require in subsequent processes.
Synthesis Phase-Inside of its nucleus, the cell creates a full duplicate of the DNA. A centrosome-like structure that organizes microtubules is also duplicated. DNA is separated during the M phase with the aid of the centrosomes.
G2 Phase-As it becomes bigger, produces more organelles and proteins, and gets closer to mitosis, the cell starts to rearrange its internal structure. Mitosis starts when G2, the growth phase ends.
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given what you know about asexual and sexual reproduction, in three to five sentences, describe both types of reproduction:
Asexual reproduction only involves one organism, sexual reproduction requires both a male and a female organism.
What is Reproduction?Reproduction is the biological process by which new individual organisms called “offspring” are produced from already existing individuals known as “parents”.
Types of ReproductionAsexual reproduction - Asexual reproduction refers to the type of reproduction in which only a single organism gives rise to a new individual. It involves processes such as binary fission, budding, fragmentation, etc. The organisms that take part in asexual reproduction have no reproductive systems and therefore is no formation of male and female gametes.
Sexual reproduction - Sexual reproduction involves the fusion of male and female gametes in a process known as fertilization. Fertilization can be either external or internal. Sexual reproduction in plants takes place through pollination in which the pollen grains from the anther of a male flower transfer to the stigma of the female flower.
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there are 64 possible arrangements of the 4 letter code (rna) into 3 letter codons, but only 20 (usually) amino acids. why is this?
Codons are three letter genetic words: and the language of genes use 4 letters (=nitrogenous bases). Hence 64 words are there in genetic dictionary, to represent 20 amino acids that the biological organisms use.
And you must note that more than one codon may code for the same amino acid. This is referred to as degeneracy of the code. For example, three amino acids are coded by any of six different codons, and that alone uses up 18 of the 64 combinations. Three of the codons are stop codons. They do not code for any amino acid. Instead, they act as signals to end the genetic message carried by messenger RNA.
A stop codon is a trinucleotide sequence of three nucleotides found in messenger RNA (mRNA) or DNA that instructs the cell to stop production of proteins. There are 64 distinct trinucleotide codons, of which 3 are stop codons and 61 define amino acids (i.e., UAA, UAG and UGA). A stop codon (or termination codon) is a codon (nucleotide triplet within messenger RNA) that marks the end of the current protein's translation process in molecular biology, more specifically in protein biosynthesis.
The number of amino acids coded by codons is
1 codons ×2 amino acids = 2 codons
2 codons ×9 amino acids = 18 codons
3 codons ×1 amino acid = 3 codons
4 codons ×5 amino acids = 20 codons
6 codons ×3 amino acids = 18 codons
3 stop codons
Total = 64 codons
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in controlled experiment, what is the experimental group compared to ?
The muscle group that helps the prime movers and protects from unwanted movements are known as.
The muscle group that helps the prime movers and protects from unwanted movements are known as synergists.
Muscles are the mass of loose tissues that mediate the movement of the entire body as well as the internal organs. There are three types of muscles in human body: skeletal muscles, smooth muscles and cardiac muscles. The skeletal muscles are voluntary in nature while the smooth and cardiac muscles are involuntary.
Synergists are called as the fixator muscles. They perform their function on movable joints. They are also called neutralizers because the neutralize the functions of agonist muscles. For example, brachioradialis and brachialis act as the synergists when flexing of the forearm is done.
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Many desert plants use allelopathy to
minimize competition and to keep other
organisms away. What type of dispersal
pattern does this cause among the
plants?
A. Hidden
B. Huddled
C. Uniform
D. Negligible
Answer:
A. hidden
Explanation:
Many desert plants use allelopathy to minimize competition and to keep other organisms away. This causes a hidden dispersal pattern among the plants, in which they are spaced out and not evenly distributed. Allelopathy is the production of chemical compounds by plants that are toxic or inhibitory to other organisms. These compounds can be released into the soil, where they can affect the growth and survival of other plants. By using allelopathy, desert plants can reduce competition for resources and increase their chances of survival in the harsh desert environment.
among american warblers, several different species often live in the same spruce trees and eat caterpillars. however, each species reproduces at a slightly different time of year and each species also forages at different areas within the tree canopy. these differences in foraging behaviors and reproduction is an example of competitive exclusion. character displacement. resource partitioning. mutualism. competitive inclusion.
A variety of American warbler species frequently coexist on the same spruce trees and feed on caterpillars. But each species has a somewhat varied reproductive season, and each species prefers various parts of the forest canopy to graze in. These differences in foraging behaviors and reproduction is an example of (b) character displacement.
Character displacement refers to an evolutionary shift that happens when two closely related species coexist in the same habitat. Natural selection is more likely to encourage divergence in an organism's morphology, ecology, behavior, or physiology under such circumstances.
Character displacement is a sort of coevolution that occurs when two or more competing species develop in reaction to one another. A group of coexisting finches, for instance, had drastically diverse body and beak proportions as well as beak morphologies in the Galapagos Islands.
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in cats, short fur is dominant over long fur. if two cats that are both homozygous dominant for fur length are bred, which combination of offspring best represents the likely outcome of the cross?
The combination of offspring best represents the likely outcome of the cross of 23 black fur and 7 white fur.
Offspring resulting from mating between parents with different traits are called hybrids. The genotype of the offspring is the result of the combination of genes in the sex cells or gametes brought together at conception. One gamete of her was born from each parent.
The Punnett square is a table listing all possible outcomes of a genetic cross between two individuals with known genotypes. An organism that has two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example this genotype is written as BB.
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Look at the steps shown. Place them in order from beginning (top) to end (bottom).
The correct ordering of the steps in scientific research is given below:
Research questionHypothesisBackground researchControlled experimentData collectionData analysisConclusionWhat are the steps in scientific research?The steps in scientific research refer to the steps or procedures that are followed by scientists in making scientific discoveries that explain observed phenomena.
The steps in scientific research are as follows:
Research question - this is the question that a scientist seeks to answer based on his/her observationsHypothesis - statements made by scientists to explain their observationsBackground research - research is done to find support for or against the hypothesis.Controlled experiment - tests carried out to disprove or prove the hypothesisData collection Data analysisConclusionLearn more about scientific research at: https://brainly.com/question/17216882
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What are two scientific questions you have that could clarify relationships about the dna or traits of these orchids?.
Two scientific questions that should be asked in order to elucidate relationships regarding the DNA or traits of the orchids are:-
Question No. 1: What generation do these orchids belong to?
Question No. 2: What is the role of DNA?
A scientific research is a systematic method to investigate and study a particular phenomenon. Scientists often question themselves regarding a specific topic so that they may get a better understanding of the data that is gathered by them.
These scientific questions are very important for the researcher and they help in guiding the researcher. Scientific questions may also help the researcher in establishing cause and effect relationships between distinct variables.
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In the fall, the leaves of some trees change color. This happens because chlorophyll breaks down and the accessory pigments become visible. What hormone is responsible for this?.
Some trees' leaves change colour in the fall. Because of the breakdown of chlorophyll, the auxiliary pigments are now visible. This is caused by ethylene hormone.
The multifunctional hormone ethylene is thought to control both growth and senescence. Depending on the concentration, timing, and species of the plant, it either promotes or inhibits the processes of growth and senescence. aids in identifying a flower's sex. In a male plant, it contributes to the development of female flowers.
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mendel's early experiments challenged the central premise upon which previous ideas about inheritance had rested. this was the premise that
only characteristics exhibited by parents can be inherited by kids.
Through genetic inheritance, traits are transmitted from one parent to the next. Both the mother and the father can pass on some traits. Others depend on the characteristics that stand out the most in both parents, whether they are dominant characteristics, and whether these run in the family. Through their genes, parents transmit features or qualities to their offspring, including such eye colour & blood type. There are several illnesses and medical disorders that can be genetically handed down. One trait can occasionally take in numerous versions. Blood type, for instance, can indeed be A, B, AB, or O. Even if your parents don't have the same chromosome, it can still be passed on to you once the chromosome join.
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Which example best illustrates a method to show differences among Earth’s layers?
(A) Carson models how the continental crust varies in thickness.
(B) Marisol records atmospheric and oceanic temperatures at several beaches.
(C) Eliza analyzes seismic wave activity from an earthquake using a computer model.
(D) Oscar determines the pressure at different depths of Earth’s crust.
Answer: D, Oscar determines the pressure at different depths of Earth’s crust. :)
Action potentials from receptors involved in general sensations are interpreted in the.
Action potentials from receptors involved in general sensations are interpreted in the Primary sensory cortex.
Primary sensory cortex is a part of the somatosensory system and it is located in the parietal lobe of the brain. The primary sensory cortex plays a crucial part in the processing of afferent somatosensory input. It also has a major role in integrating sensory as well as motor signals that are essential for skilled movement.
Through such a sensory route, the brain may distinguish between different visual stimulation because action potentials produced by sensory receptors flow along neurons that have been specifically tuned to just that input. Such neurons synapses with specific neurons inside the brain as well as spinal cord and are specialised to that specific stimulus..
The question is incomplete. The complete question is:-
Action potentials from receptors involved in general sensations are interpreted in the:
1) Premotor cortex,
2) Primary sensory cortex,
3) General interpretive area,
4) Mesencephalon.
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Tsunamis are...
Wind currents
a long, high-water wave caused by a disturbance on the floor of the ocean or
large lake
the tides pulling on the water
an excess of rain
Answer:
B
Explanation:
because I know
Answer:
Option B.
Explanation:
Why?
A is incorrect
Large tsunami tides are not made by ocean currents. The wind has little to no effect in a tsunami. Like making waves in a pool of water, there is a required disturbance that causes the water to move.
C is incorrect.
It has to do with disturbances but its not quite the response were looking for.
D is incorrect.
Option D is describing a flood. in large bodies of water like a big lake or pond, you'll find that to be the case.
Tsunamis are created by a disturbance in the ocean floor. Much like earthquakes, the ocean experiences new plate formation and movement.
The total range of energy which reaches the Earth from the sun is called the
a. Energy source
b. Light source
c. Solar radiation
d. Solar spectrum
The total range of energy that reaches the Earth from the sun is called solar radiation.
The electromagnetic radiation spectrum, which encompasses a broad range of energy, includes solar radiation, which is how the Sun's energy travels from the Sun to the Earth. Sunlight emits radiation in a variety of wavelengths, such as infrared, radio waves, X-rays, gamma rays, ultraviolet light, and visible light.
An all-encompassing term for the electromagnetic radiation that the sun emits is solar radiation, also known as sunlight or the solar resource. Numerous technological techniques can be used to absorb solar energy and convert it into usable forms of energy, like heat and electricity.
As a result of solar radiation heat, the earth's surface warms. Since the earth emits energy into space and the atmosphere, the average temperature of the planet does not change.
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which of the following is associated with the adrenal medulla? a.) norepinephrine b.) mineralocorticoids c.) glucocorticoids d.) calcitonin and gastrin
The adrenal medulla is connected to norepinephrine, also known as noradrenaline, which functions as both a neurotransmitter as well as a hormone.
The correct answer is A
Mood changes brought on by norepinephrine?There is evidence that norepinephrine affects a person ’s thinking and focus. Attention deficit hyperactivity disorder (ADHD), depression, & hypotension are a few disorders that can result from low norepinephrine levels (very low blood pressure)
What takes place when the norepinephrine level is high?High levels of norepinephrine can also lead to headaches, high blood sugar, and insomnia. They also encourage anxiety, high blood pressure, heart rate, and organ stress. Drug withdrawal, long-term kidney disease, and psychological conditions like PTSD can also result in high norepinephrine levels.
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Biologists study how nutrients and energy move among organisms and through water, soil, and air. Which level of ecological study is this?.
Answer:
Ecosystem Ecology
Experiments with genetically altered mice showed that the mice would consume abnormally high amounts of bitter-tasting compounds in water after their _____.
Answer:
sweet-taste cells were altered to express receptors for bitter tastants, suggesting that the sensation of taste depends only on which taste cell is stimulated
Explanation: