what is empty space that is free of matter
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muscular endurance is the abilitygroup of answer choicesof motor neurons to control a greater number of muscle generate maximal generate force a tendon to pull on a bone to produce movement.
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Muscular endurance is the ability of motor neurons to control a greater number of muscle fibers over an extended period.
It allows for sustained muscle contractions without fatigue and is crucial in activities involving repetitive movements or prolonged exertion. Regular training improves motor neuron efficiency in recruiting and activating more muscle fibers, enhancing overall endurance capacity.
This adaptation enables individuals to perform tasks for longer durations without experiencing muscle fatigue or loss of strength. By developing muscular endurance, individuals can increase their stamina and improve performance in endurance-based activities.
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6 steps of genetic engineering
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Answer:
Genetic engineering is accomplished in three basic steps.
These are
(1) The isolation of DNA fragments from a donor organism;
(2) The insertion of an isolated donor DNA fragment into a vector genome and
(3) The growth of a recombinant vector in an appropriate host.
Explanation:
Stages of genetic engineering include:
identify a section of DNA that contains the required gene from the source chromosome,extract required gene,insert a required gene into vector/bacterial plasmid,insert plasmid into the host cell,grow transformed cells to produce a GM organismGenetic engineering is a method of modifying or manipulating the DNA of organisms to change their characteristics or create new ones. Here are the six steps of genetic engineering:
1. Identification of target gene
2. Isolation of the target gene
3. Insertion of the target gene into a vector
4. Transformation of host cells
5. Selection and screening of transformed cell
6. Verification of gene expression
Finally, the expression of the target gene is verified to ensure that it is functioning properly and producing the desired trait or characteristic in the organism.
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State one benefit of the increase in average heart rate during exercise
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Answer:
Oxygen is carried more quickly to the cells.
Explanation:
Red blood cells carry oxygen to cells throughout the body. During exercise the cells' oxygen needs increase. This stimulates the heart to beat faster to increase the speed of blood movement, thereby carrying oxygen more quickly to the cells.
in which of the following cells would meiosis occur?
Answers
Answer: Reproductive Cells
Explanation:
Eye color is controlled by one gene. There are two alleles for this gene:
Brown (B) and blue (b). The brown allele is dominant and blue allele is
recessive, however the brown allele is incompletely dominant over the
blue. A heterozygous individual has green eyes. What offspring could be
produced if two green eyed individuals mate?
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Answer:
There are 16 possible genotypes and phenotypes that are listed in the punnett square. The ratio of phenotype is -
Brown : green : blue :: 12:3:1
Explanation:
plato
A family of white rabbits is transferred from a snow-filled ecosystem to a prairie. Which of the following adaptations would be most beneficial to the offspring of these white rabbits?
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Explanation:
In this case, the rabbits with white fur will have an advantage in the snowy environment as they will be better camouflaged and harder to see by predators. On the other hand, the brown-furred rabbits will be more easily seen against the white background, making them more vulnerable to predation.
Over time, this could lead to a shift in the color distribution of the rabbit population towards more individuals with white fur, as those individuals will have a higher chance of survival and reproduction in the new snowy environment. This change in the population's characteristics over time is an example of natural selection.
Therefore, the most likely occurrence in this scenario is that the rabbit population will gradually shift towards having more individuals with white fur.
Exercise is important for muscles because it
a.
prevents muscles from becoming tired.
b.
helps maintain strength and flexibility.
c.
gives muscles more energy.
d.
prevents muscle injuries.
Answers
Answer:
it is c the answer is C ok thanks
Check every statement about cells that is true
A: cells come in different shapes and sizes
B: All cells perfom the same function in a
multicelular organism.
C: cells are considered the basic structural unit
D: Cells are found in every living thing
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B: That is NOT true; some cells (but not ALL) perform the same functions but most do different specific jobs
C: That is NOT true, ATOMS are the basic structural unit, not cells. Cells are in every living thing, however, not in every structural thing
D: YESSSSSS!
Overall answers:
A and D
The statement that is true about cells are;
- cells come in different shapes and sizes
- cells are considered the basic structural unit
- cells are found in every living thing
- cells are not limited to only a particular size, they have various size and shapes, this is because each cell perform a specific function and as such, they tend to have a different sizes
- cells are considered the basic structural unit of all living things, both plants, and animals, they both depend on cells to survive
- cells are found in every living thing(plants and animals) they perform vital functions
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1）Fishing boats have decreased the number of herring in the sea. Explain why that could affect the number of offspring puffins can raise.
2） Which animals have a bigger food supply now there are fewer herrings?
3） Global warming is expected to reduce the biomass of phytoplankton in the oceans. What effect will that have on the rest of the food web?
Answers
Explanation:
1) When the number of herrings decrease, the food available for the puffins decrease and therefore they will not be able to feed their offspring. This will cause the number of offspring to decrease.
2) Any other animal(s) which hunts and eats the same prey as a herring will now have a bigger food supply.
3) When the biomass of phytoplankton decrease, the next animal in the food web will not have any food and their numbers will decrease, decreasing the number of the animals next in the web, as they too lose their food. This will continue for the rest of the food web and the number of animals will decrease.
Which, if any, of the following interspecies relationship(s) is/are likely a product of coevolution? Select only ONE arvwer choice. a) All of these answers are correct statements. b) Predator/prey. c) Mutualistic. d) None of these answers are correct. e) Parasite/host.
Answers
The answer choice that is most likely a product of coevolution is "mutualistic." Mutualistic relationships involve two different species that benefit from each other's presence. In this type of relationship, both species have evolved together over time to become dependent on each other for survival.
For example, certain types of plants have evolved to produce nectar to attract bees for pollination, while the bees have evolved to collect pollen and nectar as a food source. This mutually beneficial relationship has developed over time through coevolution. The other answer choices, such as predator/prey and parasite/host, may involve some level of adaptation between species, but they are not necessarily products of coevolution in the same way that mutualistic relationships are.
The interspecies relationship that is likely a product of coevolution is b) Predator/prey. Coevolution occurs when two or more species influence each other's evolution over time. In predator/prey relationships, both species continually adapt to improve their chances of survival. Predators evolve to become more efficient hunters, while prey develop strategies for better protection or escape. This ongoing process of adaptation and counter-adaptation between the two species is a prime example of coevolution at work.
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What is meant by the term drug delivery?
Answers
Answer:
Drug Delivery
Explanation:
Drug delivery is the method or process of administering a pharmaceutical compound to achieve a therapeutic effect in humans or animals. For the treatment of human diseases, nasal and pulmonary routes of drug delivery are gaining increasing importance
Which is the best description of the two organisms highlighted in orange?
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The best description of the two organisms highlighted in orange is based on the fact they share a common ancestor with the rest of the phylogenetic tree.
What are the evolutionary relationships in a phylogenetic tree?The evolutionary relationships in a phylogenetic tree make reference to the types of association based on common ancestry between different taxonomic groups which may be evidenced in the tree.
Therefore, with this data, we can see that the evolutionary relationships in a phylogenetic tree can be evidenced by the presence of a common ancestor in the clade.
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True or False? Plants are key in the Carbon Cycle. Plants take in O2 and release CO2 into the Atmosphere.
Answers
Answer:
FALSE
Explanation:
They are key in carbon cycle, because CO2 an breathe out 02 ,while humans do the reverse of what they do
If you use the letter E for this gene. what is the genotype of the offspring if the parents were EE x ee
Answers
ANSWER: Ee
This is because if we had a punnett square one box would be EE another would be the recessive ee and the last two for hybrids Ee meaning two traits will mix or most likely be dominant
22. Highlight the correct answer of each underlined pair. UV radiation has shorter longer
wavelengths and
lower/higher energy than visible light and infrared radiation.
Answers
Answer:
shorter and higher
Explanation:
UV is further along in the EM spectrum so has a higher frequency and shorter wavelengths than visible light.
what is the record amount of pieces of plastic inside this species of bird? what % of the body weight was it? how old was the bird?
Answers
The highest recorded amount of plastic found inside a bird was 5 kilograms, making up about 40% of the bird's body weight. The bird was estimated to be around 3 years old.
The highest recorded amount of plastic ever found inside a bird was 5 kilograms. This is a staggering amount of plastic and is a major concern for the environment and wildlife. The plastic was discovered inside a Laysan Albatross, a species of seabird that is native to the North Pacific Ocean. The bird was estimated to be around 3 years old.
The plastic found inside the bird was made up of a variety of items, including bottle caps, cigarette lighters, and food packaging. The plastic weighed approximately 40% of the bird's total body weight, which is a huge burden for the bird to carry.
This discovery highlights the devastating impact that plastic pollution is having on our planet and its wildlife. Plastic takes hundreds of years to degrade and can cause harm to wildlife through ingestion or entanglement.
It is crucial that we all take action to reduce our plastic usage and properly dispose of the plastic we do use to prevent further harm to the environment and wildlife.
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A gene is a section of DNA with many nitrogenous bases that codes for protein which results in a trait.
a) True
b) False
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Your genes determine your traits, your genes are made of DNA.
todo sobre la digestion
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Answer: El sistema digestivo humano consiste en el tracto gastrointestinal más los órganos accesorios de la digestión. La digestión implica la descomposición de los alimentos en componentes cada vez más pequeños, hasta que puedan ser absorbidos y asimilados por el cuerpo. El proceso de digestión tiene tres etapas.
Explanation:
Why do dogs shed a lot of hair?
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Answer:
In healthy dogs, shedding is typically a natural way for your dog to rid itself of the old, unneeded and/or damaged hair that makes up its undercoat.
drag the labels to their appropriate locations to complete the punnett squares for morgan’s reciprocal cross.Drag blue labels onto the blue targets to indicate the genotypes of the parents and offspring. Drag pink labels onto the pink targets to indicate the genetic makeup of the gametes (sperm and egg). Labels can be used once, more than once, or not at all
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X-linked genes are located and inherited together with the X chromosome. In the exposed example, the gene that codes for eye color is X-linked. A) WY, B) Y, C) W⁺, D) W⁺Y, E) W⁺Y, F) Y, G) W, H) WY.
What are sex-linked genes?
Sex-linked genes are genes located in one of the sex chromosomes. Usually, genes are linked to the X chromosome, and in these cases, we refer to X-linked genes.
These genes and their corresponding alleles are only inherited together with the chromosome to which they are linked.
Eye color in drosophila is an example of a trait coded by an X-linked gene. In this case, red color is dominant over white.
Let us represent the dominant allele with a + symbol,
X⁺X⁺ ⇒ Homozygous dominant female with red eyesX⁺X ⇒ Heterozygous female with red eyesXX ⇒ Homozygous recessive female with white eyesX⁺Y ⇒ Male with red eyesXY ⇒ Male with white eyes
A male that inherits the X chromosome from a heterozygous female can express either red eyes or white eyes, depending on which allele it got from the mother.
In the exposed example, there are two crosses.
Cross 1: red-eyed female with white-eyed male
Parentals) X⁺X⁺ x XY
Gametes) X⁺ X⁺ X Y
Punnett square) X⁺ X⁺
X X⁺X X⁺X
Y X⁺Y X⁺Y
F1) 50% of the progeny are expected to be females and 50% males
100% of the offspring are expected to have red eyes
100% of the females are expected to be heterozygous, X⁺X
100 % of the males are expected to be X⁺Y
Cross 2: white-eyed female with red-eyed male
Parentals) XX x X⁺Y
Gametes) X X X⁺ Y
Punnett square) X X
X⁺ X⁺X X⁺X
Y XY XY
F1) 50% of the progeny are expected to be females with red eyes
50% of the progeny are expected to be males with white eyes
100% of the females are expected to be heterozygous, X⁺X
100 % of the males are expected to be XY
Now, to complete the punnett squares, we will replace X by W. So,
X⁺X⁺ ⇒ W⁺W⁺ ⇒ red-eyed femaleX⁺X ⇒ W⁺W ⇒ red-eyed femaleXX ⇒ WW ⇒ white-eyed femaleX⁺Y ⇒ W⁺Y ⇒ red-eyed maleXY ⇒ WY ⇒ white-eyed maleA) WY
B) Y
C) W⁺
D) W⁺Y
E) W⁺Y
F) Y
G) W
H) WY
In the attached files you will find the complete Punnett squares
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Which of the following answer choices would be considered the
simplest?
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Answer:
the smallest one
Explanation:
It was so bad I give you a zero but that’s not possible so I give you…
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Answer:
a one...
Explanation:
a one...............
The smallest biological unit that can evolve is the.
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Answer:
A population is the smallest unit of living organisms that can undergo evolution within a given species.
Explanation:
Heart disease is the leading cause of death among both men and women in the United States.
It is usually caused when a sticky substance called plaque builds up in the arteries. Often, the
only symptoms of heart disease are chest pain or discomfort.
Why do you think heart disease is so prevalent in the United States? How could heart
disease affect other
organ systems?
Answers
Heart Diseases prevalent in the United States due to the leading causes of High blood pressure, a High Cholesterol level, diabetes, Overweight and obese, Alcohol overuse are the key factors.
Heart disease could affect other organs as if the heart is weak, blood could not be circulated and pumped properly thus fluid will start filling in kidneys, lungs, stomach, etc. cause swelling in ankles in feet or legs.
Coronary heart disease is most common cause of death, data suggests that over 20.1 million adults age 20 and older have CAD. CAD can occur when arteries that supply blood and oxygen to heart becomes clogged due to fatty materials called plague. Such factors results sudden Cardiac arrest.
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Which statement forms part of cell theory
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Explanation:
There are three principles of cell theory
all organisms are composed of one or more cellsThe cell is the basic unit of structure and organizationcells arise from pre-existing cellsQuestion 7 of 10
Society has changed its view on the widespread use of DDT since the 1950s.
Which statement best describes what caused this change?
OA. Government funding for DDT use was reduced.
B. Engineers developed ways to make pesticides that were less
expensive.
C. Society was no longer worried about mosquito-borne illnesses.
D. Scientific research showed negative impacts of DDT on the
environment.
Answers
Option D Scientific research showed negative impacts of DDT on the
environment is the correct answer of the given statement.
What are the effects of DDT?DDT exposure at low ambient concentrations may have unclear consequences on human health. Human symptoms after exposure to large levels may include nausea, tremors or shakiness, and seizures. The liver and reproductive were affected, according to laboratory animal research. DDT is thought to be a potential human carcinogen.
What is DDT and why was it banned?DDT, often known as dichlorodiphenyltrichloroethane, is a pesticide used in farming. DDT usage was outlawed in the US in 1972. DDT is still used in several non-American nations to keep mosquitoes that cause malaria at bay.
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Which can disrupt the cell cycle?
A.mutation
B.G0 phase
C.replication
D.cancer
Answers
Answer:A.mutation
Explanation:
what were teh three models of dna replication that the meselson stahl experiments were testing for
Answers
The three models of DNA replication that the Meselson-Stahl experiments were testing for were conservative replication, semi-conservative replication, and dispersive replication.
DNA replication is the process by which DNA molecules are replicated. It is essential for the continuity of life. DNA replication ensures that each cell gets a full complement of genetic material. Before cell division, DNA replication occurs. This is necessary for cell growth, division, and repair. In the Meselson-Stahl experiment, they tested the three models of DNA replication: conservative, semi-conservative, and dispersive.
Conservative replication: Conservative replication is a hypothetical model in which the original DNA double helix is preserved and entirely new double helix is synthesized. In other words, in conservative replication, the parent DNA double helix remains unchanged after replication.
Semi-conservative replication: Semi-conservative replication is a model in which the original DNA double helix splits into two strands. The two strands then serve as templates to create two new double helixes. One strand is the original, and the other is new. Hence, the new DNA is semi-conservative, containing one old strand and one new strand.
Dispersive replication: In dispersive replication, the original double helix is disintegrated into fragments. The fragments are then used to create new DNA. Hence, in the dispersive model, the new DNA contains a mix of original and new segments of DNA.
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_____ is used to find the gene that codes for a protein by matching amino acid sequences to codons, mRNA to cDNA, and cDNA to natural DNA.
Answers
Answer:
mRNA
Explanation:
This is because mRNA is a single stranded RNA molecule which is produced from the process of transcription and it's compliment one of the strand of DNA gene. They are made in the nucleus and later moved to the cell cytoplasm where translation occur. The RNA molecule is decided by RIBOSOMES during protein synthesis and it match amino acids to codons.
Question 14 (2 points) The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called natural selection. O mutation. genetic drift. migration.
Answers
The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.
A mutation is a sudden and lasting alteration in the DNA sequence that can influence genetic variation. Changes in the DNA sequence can influence phenotype, which may or may not have an effect on an organism's fitness. Mutations occur spontaneously, either from errors in DNA replication or from exposure to mutagenic agents. Mutations may happen in either coding or non-coding regions of the DNA, and they can be either silent or expressed.
Evolution is a natural process that results in the gradual change of inherited characteristics in populations over generations. It is the process of alteration in the inherited characteristics of species over successive generations. In other words, it is the process of gradual changes that happen to species over time as they adapt to their environments. It can be defined as a change in the gene frequency in a population over time.
Types of Evolution 1. Natural Selection 2. Genetic Drift 3. Gene Flow 4. Mutation 5. Non-Random Mating 6. Admixture 7. Mutation Pressure 8. Genetic Draft 9. Bottleneck and Founder Effect 10. Sexual Selection the process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.
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