how many dna molecules make up an unreplicated chromosome?
Answer: 1, only one, it's a single DNA figure
b cells are white blood cells that work by ___________________, whereas t cells attacks foreign invaders __________________.
Answer:
your answer is b cells are white blood cells that work by producing antibodies, whereas t cells attack foreign invaders directly.
Explanation:
flashcards
Explain how fitness can change the allele frequency of a population. PLZ no link
Answer:
Natural selection can cause microevolution (change in allele frequencies).
Explanation:
With fitness-increasing alleles becoming more common in the population.
Fitness can affect the survival and reproduction rates of individuals with different alleles, leading to differential contribution to the next generation and changes in the frequency of these alleles in the population.
What is fitness?Fitness is a measure of the reproductive success of an individual within a population. The fittest individuals are those that are most successful at passing their genes on to the next generation. When the environment changes, the selective pressures on a population also change. This can lead to changes in the relative fitness of different individuals, and thus changes in the allele frequencies of a population over time.
For example, if a population of birds lives on an island with small seeds, those birds with small beaks may be more fit than those with larger beaks. This is because they are better adapted to the environment and can more easily obtain food. Over time, the frequency of the small-beaked allele will increase in the population, while the frequency of the large-beaked allele will decrease.
Thus, fitness can drive changes in the allele frequency of a population over time by favoring those individuals with alleles that are better adapted to the environment.
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the vitamin that poses the greatest risk for toxicity is:
help what's the answer
Answer:
Option A
The function of digestive system is to breakdown food into glucose.
What type of organisms have differentiated cells?
a.) Multicellular Eukaryotes
b.) Unicellular Eukaryotes
c.) Prokaryotes
d.) All of the above
Answer:
C) Prokaryotes
Explanation:
Prokaryotic cells tend to be small, simple cells, measuring around 0.1-5 μm in diameter. While prokaryotic cells do not have membrane-bound structures, they do have distinct cellular regions
Unicellular organisms generally do not go through any cell differentiation, except unicellular yeasts. While multicellular organisms go through categorized cell division to form differentiated cells, which can perform particular tasks.
the microorgansims which contains chlorophyll
The greater and lesser trochanter are located on which bone?
Answer:
d. Femur
Explanation:
Answer:
femur good job bro
Explanation:
need ans asap thankssssss
Explanation:
electromagnetic waves: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.
radio waves: Radio waves are a type of electromagnetic radiation best-known for their use in communication technologies, such as television, mobile phones and radios. These devices receive radio waves and convert them to mechanical vibrations in the speaker to create sound waves.
microwaves: Microwave is a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter corresponding to frequencies between 300 MHz and 300 GHz respectively.
infrared: Infrared (IR) light is used by electrical heaters, cookers for cooking food, short-range communications like remote controls, optical fibres, security systems and thermal imaging cameras which detect people in the dark.
visible ray: The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 380 to about 750 nanometers
ultraviolet:UV radiation is widely used in industrial processes and in medical and dental practices for a variety of purposes, such as killing bacteria, creating fluorescent effects, curing inks and resins, phototherapy and suntanning. Different UV wavelengths and intensities are used for different purposes
xray:An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10 picometers to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (30×1015 Hz to 30×1018 Hz)
gama ray :A gamma ray, also known as gamma radiation, is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei.
Most of the reactions by which energy from carbohydrates is released for use by the cell take place within the?
Answer:
Explanation:
The cellular process of releasing energy from food through a series of enzyme-controlled reactions is called respiration . Some of the energy released is used to produce ATP. Some of the energy released is lost as heat.
The release of energy from carbohydrates takes place within the
mitochondria.
The mitochondria is an organelle found within cells and it is regarded as
the power house of the cell. This is because energy is generated in it which
gives the cells power to perform its daily activities.
Energy generated from carbohydrate is usually in the form of ATP and it
involves series of reactions such as glycolysis, kreb cycle etc to ensure
adequate energy yield.
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Which describes the relationship between the frequency wave length and speed of a wave is a wave travels through different media
No links
Answer:
a
Explanation:
as speed changes wavelength changes but frequency remain constant
ASAP HELP 100 POINTS + BRAINLEY 2. Write 1–2 paragraphs that summarize how spectroscopy provides information about the composition of objects. Use data from the lab to support claims you make, and provide compelling reasoning. Make an effort touse proper writing conventions in your summary (such as good punctuation, spelling, and capitalization)
Answer:
Spectroscopy is the study of the interaction between matter and electromagnetic radiation as a function of the wavelength or frequency of the radiation. Simply, spectroscopy is the study of color as generalized from visible light to all bands of the electromagnetic spectrum; historically, spectroscopy originated as the study of the wavelength dependence of the absorption by the gas phase matter of visible light dispersed by a prism. Matter waves and acoustic waves can also be considered forms of radiative energy, recently gravitational waves have been associated with a spectral signature in the context of the Laser Interferometer Gravitational-Wave Observatory as well. Spectroscopy, primarily in the electromagnetic spectrum, is a fundamental exploratory tool in the fields of physics, chemistry, and astronomy, allowing the composition, physical structure and electronic structure of matter to be investigated at the atomic, molecular and macro scale, and over astronomical distances.
The spectrum is determined by measuring changes in the intensity or frequency of this energy. The types of radiative energy studied include: Electromagnetic radiation was the first source of energy used for spectroscopic studies. Techniques that employ electromagnetic radiation are typically classified by the wavelength region of the spectrum and include microwave, terahertz, infrared, near-infrared, ultraviolet-visible, x-ray, and gamma spectroscopy. Dynamic mechanical analysis can be employed to radiating energy, similar to acoustic waves, to solid materials. The types of spectroscopy also can be distinguished by the nature of the interaction between the energy and the material example:Absorption- when energy from the radiative source is absorbed by the material. Elastic scattering and reflection spectroscopy determine how incident radiation is reflected or scattered by a material. Crystallography employs the scattering of high energy radiation, to examine the arrangement of atoms in proteins and solid crystals. Coherent or resonance spectroscopy are techniques where the radiative energy couples two quantum states of the material in a coherent interaction that is sustained by a radiating field. Spectroscopic studies are designed so that the radiant energy interacts with specific types of matter.
NO G00GLE PLEASE <3
Define cell
Answer:
Cell is the fundamental intergral unit of life. It give rise to an organism, it's specialization allows complex or simple functions to occur within a body of an organism.
explain why a fungus is not classified as a plant
Answer:
Today, fungi are no longer classified as plants. ... For example, the cell walls of fungi are made of chitin, not cellulose. Also, fungi absorb nutrients from other organisms, whereas plants make their own food. These are just a few of the reasons fungi are now placed in their own kingdom
Explanation:
Answer:
Because it's not
Explanation:
Fungus is not part of the plant kingdom but, it's classified as a organism due to how it can reproduce and spread rapidly.
one of the most common chromosomal disorders is ________ in which a baby has ________________.
Answer:
One of the most common chromosomal disorders is Down syndrome. Down syndrome happens when abnormal cell division results in extra genetic material from chromosome 21, too few chromosomes, or part of a chromosome may be missing. The difficulties of Down syndrome include hearing and vision weakness, weak auditory memory, fine motor skill impairment, short attention span with distractibility. Having Down syndrome can increase the risk of developing Alzheimer's disease. Having down syndrome can be associated with other health conditions such as ear infections, dental problems, endocrine problems, and seizures.
the _______ of light determines its color
Answer:
Wavelength
Explanation:
Answer:
1. The wavelength of light determines its color. 2. Chemicals that absorb light are called Pigments.
Explanation:
What happens to this enzyme when the pH rises above 12?
I'll give you brainliest if you answer correctly
Type your response in the box.
Do you think one gene controls human hair color? Explain your answer.
Do you think one gene controls human hair color?
No, this is false. Not only one gene is responsible for the colour of your hair, at least 2 gene pairs control human hair colour. Therefore, this is wrong since each parent contributes multiple hair-colour genes .
Hope this helped you, have a good day bro cya)
Answer:
There are many different phenotypes for hair color among humans. Therefore, multiple genes control hair color.
discribe the processes of transcriotion and translation
Explanation:
Basic Biology
BASIC BIOLOGY
Inspired by life
TRANSCRIPTION AND TRANSLATION
Genes provide information for building proteins. They don’t however directly create proteins. The production of proteins is completed through two processes: transcription and translation.
Transcription and translation take the information in DNA and use it to produce proteins. Transcription uses a strand of DNA as a template to build a molecule called RNA.
The RNA molecule is the link between DNA and the production of proteins. During translation, the RNA molecule created in the transcription process delivers information from the DNA to the protein-building machines.
DNA → RNA → Protein
DNA and RNA are similar molecules and are both built from smaller molecules called nucleotides. Proteins are made from a sequence of amino acids rather than nucleotides. Transcription and translation are the two processes that convert a sequence of nucleotides from DNA into a sequence of amino acids to build the desired protein.
These two processes are essential for life. They are found in all organisms – eukaryotic and prokaryotic. Converting genetic information into proteins has kept life in existence for billions of years.
DNA and RNA
RNA and DNA are very similar molecules. They are both nucleic acids (one of the four molecules of life), they are both built on a foundation of nucleotides and they both contain four nitrogenous bases that pair up.
A strand of DNA contains a chain of connecting nucleotides. Each nucleotide contains a sugar, and a nitrogenous base and a phosphate group. There is a total of four different nitrogenous bases in DNA: adenine (A), thymine (T), guanine (G), and cytosine (C).
A strand of DNA is almost always found bonded to another strand of DNA in a double helix. Two strands of DNA are bonded together by their nitrogenous bases. The bases form what are called ‘base pairs’ where adenine and thymine bond together and guanine and cytosine bond together.
Adenine and thymine are complementary bases and do not bond with the guanine and cytosine. Guanine and cytosine only bond with each other and not adenine or thymine.
There are a couple of key differences between the structure of DNA and RNA molecules. They contain different sugars. DNA has a deoxyribose sugar while RNA has a ribose sugar.
PLZ HELPPPP WILL PICH BRAINLIEST
Which of the following is not a reason the nitrogen cycle is important?
Nitrogen gas gets converted to nitrates for plants to use
Nitrogen is needed to synthesize proteins
Nitrogen provides energy for organisms
Nitrogen is needed to synthesize DNA
Nitrogen gas gets converted to nitrates for plants to use
Hope this helped you- have a good day bro cya)
Classify plants according to causal organisms
Answer:
Plant disease are classified as two types like infectious (biotic) diseases which are caused by eukaryotes, prokaryotes, parasitic higher plants, viruses/viroids, nematodes, and protozoa, and noninfectious. Than their is abiotic diseases, which are caused by different extreme environmental conditions.
what is the organ responsible for the production of bile
Answer:
Bile is a fluid that is made and released by the liver and stored in the gallbladder. Bile helps with digestion. It breaks down fats into fatty acids, which can be taken into the body by the digestive tract.
Explanation:
Answer:
the organ producing bile is pancreas
Question 2 of 25
Which best describes the scientists who contributed to our current body of
knowledge?
A. Scientists from all areas of the world
B. Scientists from the United States
C. Scientists from the Middle East
D. Scientists from Europe
Answer:
(a) because everyone is dmsrtll
Which of the following is NOT one of the 4 macromolecules?
Group of answer choices
Lipids
Acids
Proteins
Carbohydrates
Nucleic Acids
Which does a polymer most closely resemble?
Group of answer choices
link in a chain
chain
Molecules made from units of identical compounds linked together by bonds are called ______________.
Group of answer choices
elements
polymers
atoms
nucleic acids
When a bond is broken in a large biomolecule using water, it is called _____________.
Group of answer choices
Condensation reaction
Hydrolysis
Dehydration synthesis
Hydrolysis is an example of _____________.
Group of answer choices
anabolism
catabolism
Creating larger molecules by building on smaller molecules and releasing a water is called _______________.
Group of answer choices
biochemistry
hydrolysis
dehydration synthesis
Dehydration synthesis is an example of _____________.
Group of answer choices
Catabolism
Anabolism
Answer:
Acids
Chain that is the answer
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Explanation:
Question 9
The diagram below shows a cellular process. What is the correct sequence of these stages?
3
с
D
A
A-B-C-D
B
C-B-D-A
с
B-D-C-A
D
D-B-A-C
Answer:
bdca
Explanation:
6. Identify the type of climate data that has the longest data range. 1. microscopic organism 2. data sediment core 3. data tree ring 4. data ice core data
Complementing data, taken from different sources such as tree rings, sediments, and ice, provides significant information about global climatic changes. However, ice core data has the longest data range. (4) is correct.
-------------------------------
Ice core data refers to the information obtained from a sample of ice taken from a glacier or a mountain.
Information kept in the ice is mostly about gases concentration at different moments though time.
Analysis of retained gases in Antarctic ice, through perforations of over 2000 meters deep, has allowed knowing the CO₂ atmospheric concentrations and other gases involved in the greenhouse effect for at least 150,000 years.
These concentrations have varied in the temporal scale of glaciation, showing low concentrations during glacial periods with low temperature and relatively high concentrations during interglacial periods with high temperature.
Between these two periods, abrupt variations in temperature and gas concentration are detected, meaning that changes in CO₂ cause changes in temperature.
The increase in CO₂ is a highly significant component in global climatic change and possibly the best documented.
This information is the best paleoclimatic documents.
Complementing it with marine sediments core and data tree rings makes it possible to know about the principal traits of terrestrial weather in the lasts 420,000 years, practically four glacial-interglacial cycles.
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How would a protein transit through a cell?
Answer:
How would a protein transit through a cell?Explanation:
Protein cargo moves from the ER to the Golgi, is modified within the Golgi, and is then sent to various destinations in the cell, including the lysosomes and the cell surface. The Golgi processes proteins made by the endoplasmic reticulum (ER) before sending them out to the cell.
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please ASAP
Frank is putting money into a savings account. He starts with $750 in the savings account, and each week he adds $40.
Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Frank has been adding money. Write an equation relating S to W. Then use this equation to find the total amount of money in the savings account after 17 weeks.
Answer:
750+(40xW)=S
750+(40x17)=----------
Explanation:
do you think there is a quantitative relationship between transpiration rate and number or size of leaves on the stem? explain your answer.
Answer:
Do you think there is a quantitative relationship between transpiration rate and number or size of leaves on the stem? Explain your answer. Yes, the more leaves a plant has, means more stomata will be available for transpiration. ... Without light to facilitate photosynthesis, most plants close their stomata at night.
Explanation:
