Answer:
Greco-Roman world
Explanation:
The Mediterranean world which comprises of areas around the land regions of the Mediterranean and Black Sea Basins were influenced in various forms such as culture, language and the style of government by the Greeks and Romans.
These people were majorly involved in the civilization of the Mediterranean region. This makes the Mediterranean world to also be called the Greco-Roman world.
8. What base in DNA pairs with adenine?
A cytosine
Buracil
C thymine
D guanine
Answer:
C. thymine
Explanation:
Adenine pairs with thymine in DNA and pairs with uracil in RNA.
Hope it helps.
Meiosis reduces chromosome number and rearranges genetic information. Explain how the reduction and rearrangement are accomplished in meiosis. Several human disorders occur as a result of defects in the meiotic process. Identify one such chromosomal abnormality; what effects does it have on the phenotype of people with the disorder
Answer:
Explanation:
Meiosis is a form of cell division that occurs in the sex cells of organisms. It ensures the reduction of a diploid cell to an haploid cell to allow for the formation of a diploid zygote after fertilization (contribution of both parents haploid sex cells to give a diploid zygote). Thus, this process is very essential and important.
The reduction is accomplished by 2 divisions after the duplication of chromosomes
- first division: separation of homologous pairs of chromosomes (this reduces the total in half)
- second division: separation of sister chromatids of a chromosome.
The rearrangement in meiosis occurs by crossing over/genetic recombination.
This is the exchange of genetic material between homologous pairs of chromosome bringing about a rearrangement and genetic variation
An example of a chromosomal abnormality that arises as a result of defects in this process is the Down Syndrome which is caused by a nondisjunction of the chromosomes 21 pair in a sex cell.
This condition produces offsprings that have some characteristic facial features, short stature etc
Rearrangement takes place at the time of meiosis with the lining of chromosomes pair during the metaphase 1 and 2. Down syndrome is the example of chromosomal abnormality.
• A process in which a single cell differentiates two times to generate four cells comprising half the original amount of genetic information is termed as meiosis.
• During meiosis, the process of rearrangement takes place when the chromosomes line up in pairs at the time of metaphase 1 and 2. Then in anaphase 1 and 2, the separation of these chromosomes takes place and each gamete gets one of each kind of chromosome.
• One of the examples of chromosomal abnormality is Down syndrome, which is, illustrated by the third copy of chromosome 21. The phenotypic variability, which takes place during Down syndrome is muscle hypotonia at the time of birth, and cognitive impairment.
Thus, during meiosis reduction and rearrangement of chromosomes takes place, and one of the chromosomal abnormality is the Down syndrome.
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what is the difference between manure and fe!rtilizer
Answer:
Manures and fertilizers are soil additives that improve the soil quality, helping plants to grow. The main difference between the two is that manure is all-natural animal droppings while fertilizer may be natural but may also have chemicals and other unknown substances added to it.Answer:
Explanation: FERTILIZER :
1) It may be artificial or natural substance.
2)These are chemicals that are added to the soil to increase its fertility and productivity.
3) They are costly
MANURE:
1) It is a natural substance
2) These are obtained by dead and decaying plants and animals.
Prepared in factories.
3) They are less costive then Fertilizer.
What can a person do to limit exposure to X-rays?
wear sunblock
avoid cigarette smoke
wear a protective vest
avoid chemicals
Answer:
The correct option is;
To wear a protective vest
Explanation:
X-rays are an invisible high energy electromagnetic radiation that penetrates of travels through an objects when incident on the object rather than being reflected like visible light
X-rays are ionizing radiation that result in the electrons being ejected from atoms to form a positively charged ion, which in living cells can result in the damage of the DNA
The method used to reduce exposure to X-rays are;
1) To limit the time of exposure
2) To increase the distance between people and the X-ray source
3) To provide a shield between people and the source of the X-ray
Therefore, the correct option is to wear a protective vest.
While working with x rays the person ought to wear a very thick protective material such as a protective vest.
X-rays are part of the electromagnetic spectrum. They are high energy rays which are known to be highly ionizing and can pass through may objects. In order to work with X-rays, a person must be properly protected.
While working with x rays, the person ought to wear a very thick protective material such as a protective vest which is able to prevent the X rays from passing into the body.
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Which statements describe transform boundaries? A) Rift valleys are formed. B) Mountains are created. C) Faults form in the lithosphere. D) Plates move toward each other.
Answer:
C) Faults form in the lithosphere.
Explanation:
Faults form in lithosphere is part of transform boundaries because the plates simply slide past each other without causing any change to the lithosphere (i.e it is neither created nor destroyed) which is why transform boundaries are also sometimes referenced when we speak about phenomena related to when plates slide in opposite directions.
Answer: c. Faults form in the lithosphere.
Explanation:
what happens to the stomata in the daylight hours
Answer:
they open up to get the energy from the sun.
Explanation:
Matching Responses and Stimuli
wpUp
Match each stimulus with the most likely response.
smelling rotten eggs
pulling your hand away
covering your nose
touching a hot dish
OOO
shivering
jumping into a cold pool
Done
Intro
Activity
Answer:
smelling rotten eggs - covering your nose
touching a hot dish - pulling your hand away
jumping into a cold pool - shivering
Explanation:
A stimulus generally refers to a detectable change in the environment of an organism. These changes could be physical or chemical and could be in the internal or external environment of organisms.
Organisms react to changes in their internal or external environment by responding appropriately. Hence perceiving the smell of rotten egg, feeling the hotness of a dish by touching it, and feeling cold immediately one jumps into a cold pool are all examples of stimuli and their corresponding responses would be covering one's nose, pulling the hand away, and shivering of the body in order to counter the cold.
In other words:
smelling rotten eggs - covering your nose
touching a hot dish - pulling your hand away
jumping into a cold pool - shivering
The highlighted structure separates the oocyte from the externally located ________. zona pellucida primary follicle corona radiata granulosa cells
Answer:
Granulosa cells
Explanation:
Foliculogenesis is a dynamic and complex process through which the follicle goes through many stages of development in a short period (approximately 60 days in humans and some chimpanzees).
The stages classification is based on morphological changes such as follicular size or diameter, the number of follicular cell layers, etcetera. These classifications might vary among authors but could be denominated as:
Primordial folliclePrimary follicleSecondary follicle andDe Graaf follicles (This is the one shown in the image)Through each stage, there are certain modifications in the oocyte, follicular cells, and connective tissue. As the oocyte grows, the follicular cells might reach a size twice or three times bigger than the ones of the primordial follicles. Their shape also changes and they adopt an aspect of stratified epithelium. Their cytoplasm gets a granulous aspect, after what these cells receive the name of granulous cells. The De Graaf follicle characterizes for having a space named follicular antro that displaces the oocyte to one of the sides.
The oocyte at this point gets surrounded by zona pellucida and corona radiata .
The follicular antro (The highlighted structure) separates the oocyte from the externally located granulosa cells or follicular cells.
Un jardinero cruzó dos plantas de flores rosadas, con la esperanza de obtener plantas con flores del mismo color. Su sorpresa fue encontrar que, en la descendencia, aparecían flores rojas, rosadas y blancas en la proporción 1:2:1. Pregunta: a) ¿En qué se diferencia la herencia del color de estas flores y la de los guisantes? b) Indica el genotipo de las plantas del cruzamiento descrito.
Answer:
Este es un ejemplo de dominancia incompleta. Es una ocurrencia genética que ocurre cuando un gen dominante no expresa su manifestación completa en el alelo recesivo en un alelo dominante heterocigoto.
Por lo tanto, ambos rasgos se manifiestan, lo que resulta en la combinación de los dos alelos para los colores (blanco y rojo). Se dice que el alelo rojo dominante exhibe un dominio parcial sobre el alelo blanco recesivo, y esto da como resultado el alelo completamente rosado.
De acuerdo con la ley mendeliana, las dos flores rojas son heterocigóticas. Por lo tanto, las flores rojas heterocigóticas dominantes deben ser R. El alelo blanco es recesivo (rr) enmascarado por el rojo R,
Sin embargo, cuando se cruzan los dos alelos heterocigotos rojos:
Los fenotipos están en forma de
RR, (1) rojo Rr Rr (2) rosa rr (1) Blanco.
Esto ocurre porque el alelo rojo dominante no era total / completamente dominante en el alelo recesivo blanco en cada uno, lo que da como resultado un alelo rosa (el tercer fenotipo)
This is an example of incomplete dominance.It is a genetic occurrence which occurs when a dominant gene does not express it full manifestation on the recessive allele in an heterozygote dominant allele.
Therefore,both traits are manifested which results in the blend of the two allele for colors(white and red).The dominant red allele is said to exhibit partial dominance over the recessive white allele.And this results in the entirely pink allele.
Based on Mendelian law the two red flowers are heterozygotes .Therefore, Red heterozygote dominant flowers should beRr.The white allele is recessive(rr) masked by the R-red,
However,when the two red heterozygote alleles are crossed:
The phenotypes are in the form of
RR,(1) red Rr Rr(2) pink rr(1)White.
This occurs because, the dominant red allele was not fully/completely dominant on the white recessive allele in each,which results in pink allele(The third phenotype)
Explanation:
The branch of science which deals with living beings is called biology.
The language of the question is different so it is difficult to answer it.
According to the data given in the question, they are discussing incomplete dominance because the ratio is 1:2:1.
The cross in which the dominant parent is not able to show its character and does not able to suppress the recessive gene. In this case, the plants show the character of somewhere in between both of the cases.
Therefore, they get the ratio of 1:2:1 which indicates the phenotype of red: pink: white.
Hence, the correct answer is incomplete dominance.
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An organism genotype is its
1. Genetic makeup
2.feather color
3.physical appearance
4. Stem height
Answer:
1. Genetic Makeup
Explanation:
A genotype is how an individual is made up of. It's our collection of genes and our information is encoded in those genes.
Henry was studying two populations of the same species of lizards. One population lived on an island and the other lived on the mainland. Both populations were affected by a hurricane that hit the island and the mainland with equal force. A year later, Henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. Which best describes a conclusion he might have reached? Gene flow greatly affects small populations, but large populations can recover. Genetic drift greatly affects small populations, but large populations can recover. Gene flow greatly affects large populations, but small populations can recover. Genetic drift greatly affects large populations, but small populations can recover.
Answer:
The correct option is Genetic drift greatly affects small populations, but large populations can recover.
Explanation:
Genetic drift is an evolutionary mechanism in which the allelic frequencies in a population change through many generations. Its effects are harder in a small-sized population.
Genetic drift results in some alleles loss, even those that are beneficial for the population, and the fixation of some other alleles by an increase in their frequencies. The final consequence is to randomly attach one of the alleles.
Genetic drift has important effects on a population when this last one reduces its size dramatically because of a disaster -bottleneck effect- or because of a population split -founder effect-.
In the exposed example, the hurricane caused a disaster in both populations, reducing the number of individuals on the island and in the mainland. Henry saw a decrease in genetic variation in the island species, but not in the mainland species. This could be because the island population was smaller than the mainland population, so it was more affected by the disaster. The loss of some alleles in the population caused a decrease in genetic variation in the island population.
Answer:
The answer is B.
Explanation:
The bottom two answers don't make sense and the first one is unrelated.
What might be the correlation between the clarity of the lake water and the occurrence of the full body plate trait? What might you conclude about the clarity of the water from 1950 to 1980 based on this correlation?
Answer:
The clarity of the lake water isn’t specified so assuming the clarity improved and other predatorial fish were able to target stickleback fish more easily the full body plating had to come into play to make it more difficult for them to be preyed upon and to give them a better chance at escape.
Explanation:
The clarity of the lake water though not specified in this context. The full
body plate will help the stickleback fish to escape from its predators.
Water clarity is defined as the amount of light which is able to penetrate into
water bodies thereby making it easier for animals in it to see and hunt
properly for their food.
The improvement in water clarity will give the predatorial fish an advantage
to easily hunt stickleback fish. The full body plate trait will therefore give it a
form of adaptation to enable ity escape from other predators in the water
body.
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In which two places do divergent boundaries occur? land and oceans oceans and volcanoes volcanoes and lower mantle lower mantle and land
Answer:
The correct option is;
Land and oceans
Explanation:
Divergent boundaries otherwise known as a constructive boundary is a feature that is liner in shape and occur between the spreading centers of two separating tectonic plates where also magma rising from the mantle forms a new crust
Rifts are formed in continents (land)by divergent boundaries which enlarge into rift valleys. Active divergent boundaries can be located in mid-ocean ridge tectonic plate and volcanic islands are formed by divergent boundaries.
Answer:A
Explanation:
The diagram shows the inside of a eukaryotic cell
Which process occurs in the structures that are labeled X
What occurs when there is a higher concentration of molecules on one side of a membrane and the molecules flow to the other side to balance the concentration
Fusion
ОООО
Simulus
Conversion
Answer:
Diffusion
Explanation:
The concept of diffusion states that molecules like to travel from areas of high concentration to low concentration.
Let's think about an example. Let's say you are having a party at your house and in one room there is 100 people and in the other room connected to it, there is only 10 people. What do you think is going to happen as time passes? Right, people are going to move to the room where there is less people so as to equally disperse themselves across the area. The same thing happens within our body with ions and gases.
Ions can diffuse into or out of cells based off their concentration gradients. If there are too many ions on one side, they will simply move to the other side. There are different types of diffusion. Passive diffusion and facilitated diffusion, but those are for a different conversation.
What do paramecia use for defense?
Answer:
Paramacia use trichocysts for defense.
Explain what igneous rock is
Explanation:
Igneous rock is formed through the cooling and solidification of magma or lava.
Answer:Igneous rock is which is also called magmatic rock is the rock formed when hot,molten rocks crystallizes and solidifies.
Explanation:
Does bitter gourd reduce sugar level?
Yes, it does. This is because it contains a compound called Polypeptide-P, which is similar to insulin and helps reduce blood sugar level.
Would your rather paint 3/4 of a circle or a circular ring? Using area, explain your reasoning. Include calculations in your reasoning.
Answer:
circle
Explanation:
What is the purpose of technology?
A. Creating political pressure
B. Regulating the government
C. Finding new scientific discoveries
D. Solving problems
Answer:
D
Explanation:
fhdjrkfififhfhdjdudjdjfhklaldhdfbfbfjdl
Answer:
The purpose of technology is solving problems.The entire process of problem solving involves gathering and analysing data.
Explanation:
I hope this will help you:)
Which of the following groups is a community?
O A. All of the white-tailed deer living in a forest ecosystem
B. All of the living and nonliving things that interact within a forest
ecosystem
c. All of the insects living in a forest ecosystem
D. All of the living things that interact within a forest ecosystem
Answer:
D. All of the living things that interact within a forest ecosystem
Explanation:
A biological community consists of all biotic(living) organisms within an ecosystem.
Which of the following answer choices would be a sex chromosome aneuploidy in a human? Choose 1 answer: Choose 1 answer: A A sperm has one X chromosome. B An egg contains two X chromosomes. C A female gamete contains one X chromosome. D A male gamete has only one Y-chromosome.
The answer you are looking for is B.If fertilized by a sperm cell that contains a Y chromosome the individual will suffer from Klinefelter syndrome. If fertilized by a sperm cell that contains an X chromosome the individual will suffer from triplo X syndrome.Both heterosomal aneuploidies.
The following choice would be a sex chromosome aneuploidy in a human is that a sperm has one X chromosome. Option A is correct.
Sex chromosome aneuploidy is a condition in which a person has an abnormal number of sex chromosomes. The normal number of sex chromosomes in a human is 46, with 23 chromosomes in each sex cell. Females have two X chromosomes in their sex cells, while males have one X chromosome and one Y chromosome in their sex cells.
A sperm with one X chromosome is an example of a sex chromosome aneuploidy because it has one fewer X chromosome than the normal number. This condition is called Turner syndrome, and it is characterized by short stature, underdeveloped ovaries, and other physical abnormalities.
The other answer choices are not examples of sex chromosome aneuploidy because they do not involve an abnormal number of sex chromosomes. Option A is correct.
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Coal-fired power plants release emissions such as nitrogen compounds into the air. The nitrogen and water cycle combine when nitrogen returns to the soil as acid rain through which water cycle process?
Answer:
Precipitation
Explanation:
Precipitation refers to the falling of the condensed form of water vapor as a result of gravity. The given excerpt presents the process of precipitation of Nitrogen along with the water vapor. The nitrogen gets mixed along with the water vapor and returns to the soil. This process of returning after passing through the process of condensation is termed to be precipitation.
1. View the cartoon below. Describe how this cartoon illustrates interphase.
During interphase the cells copies it’s DNA. In the pictures it shows a chromatid duplicating into a sister chromatids.
What do you mean by interphase of cell cycle?The interphase is the period when the cell is in a non-dividing state and this can be in different stages: the first gap (G1) between the last mitosis and the S phase (phase of DNA synthesis) and the second gap (G2) between the completion of the S phase and the next mitosis (M).
Moreover, interphase is the portion of the cell cycle that is not accompanied by visible changes under the microscope, and includes the G1, S and G2 phases. During interphase, the cell grows, replicates its DNA and prepares for mitosis.
A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.
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Which two objects in space formed from the huge disk of ice and debris beyond the outer planets? Pluto and comets comets and Neptune Neptune and a solar nebula a solar nebula and planetesimals
Answer:
Pluto and comets
Explanation:
The two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
A Comets is made of dusty ice and they are known to orbit the sun. Comets are also known to contain gases such as carbon dioxide, water, methane and ammonia. Pluto is the farthest planet away from the sun. It also contains ice and some amount of dust which validates the chosen option.
Basedon astronomical findings, the two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
What are Comets?Comets are objects found in space which are composed of dust and ice.
Comets are known to orbit around the sun.
Comets are composed of gases such as carbon dioxide, water, methane and ammonia.
What is Pluto composed of?Pluto which once was classified a planet is known to be farthest planet from the sun.
Pluto is composed of ice and dust particles.
Therefore, the two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
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3. Centrosomes are present only in
a plant cells
b. animal cells
c. both a &b
d. only viruses
Match each type of specialized cell to its functions.
muscle cells
carry oxygen throughout the body,
against pathogens
neurons
conduct electrical impulses; allow b
react to stimuli
epithelial cells
regulate exchange of chemicals, se
various substances
blood cells
help move the skeleton; help the he
and pump blood
Cells Functions
Muscle cells : Help move the skeleton; help the heart beat and pump blood
Neurons : conduct electrical impulses; allow body to react to stimuli
Epithelial cells : Regulate exchange of chemicals, secrete various substances
Blood cells : oxygen throughout the body, protect against pathogens
The cells in the human body have specialized functions and some of the specialized function of some of the specialized cells present in the human body are as listed above.
The muscle cells helps with the mobility of the body and also allows the heart to beat successfully while the Neurons of the nervous system transmits electrical impulses to the brain for proper reaction.
Hence we can conclude that the specialized cells and their functions are as listed above.
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Which is one piece of information that astronomers use to calculate the age of the universe?
A: dark energy
B: the age of rocks on Earth
C: the current motion of inner planets
D: patterns of background radiation
The age of the universe can be calculated with the Patterns of background radiation.
Patterns of background radiation is the information that helps the astronomers in order to calculate the age of the universe. Astronomers estimate the age of the universe in many ways i.e.
Patterns of background radiation, looking for the oldest stars and measuring the rate of expansion of the universe. Patterns of background radiation helps to calculate the age of the universe so we can say that patterns of background radiation is used by the astronomers to calculate the age of universe.
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One piece of information from the options listed that can be used to calculate the age of the universe is : Patterns of background radiation( D )
some of the ways astronomers can use to determine the age of the universe or the age of any planet is by studying the oldest piece found in the universe or planet. like studying the oldest stars.
The universe is believed to have been formed from the Big Bang as explained in the Big bang theory therefore looking for patterns of background radiation from naturally occurring radioactive materials is one piece of information that astronomer needs to determine the age of the universe. while
The age of rocks on earth can only be used to determine the age of the earth and not the universe.
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Select the correct answer. A normal appearing couple is found to be heterozygous recessive for albinism. Both have the genotype Aa. The gene responsible for albinism is recessive to the normal pigment-producing gene. What are the chances of their children being albino? A. 3:4 children will be albino. B. All children will be albino. C. 1:4 children will be albino.
Answer:
C. 1:4 children will be albino.
Explanation:
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Repair of right eye retinal detachment with a giant tear is performed for an accidental injury sustained from a baseball to the eye at fastball practice. vitrectomy, drainage of subretinal fluid, silicone oil tamponade, and endolaser photocoagulation are performed to correct the tear. what are the procedure and diagnosis codes for this service?
Answer:
Explanation:
Current procedural terminology(CPT) are medical codes used for medical procedures, billing and payment. The code is formulated by America doctors and its serves as guide for treatment.
Diagnosis code for treatment of Retina is 67113, H33.031, W21.03XA
Procedures
The first is to check of CPT codes for repair of eye with Repair/ Retina/ Detachment using Vitrectomy and the code 67113 for rectina repair will be referred to.
Code 67113 is used for repair of damage to retina.
Another index is checks called the ICD-10-CM using Detachment/retina/with retinal/break/giant and code H33.031 will be referred to where 1 indicate right eye as place of injury.
The last code is ICD-10-CM and it is used to locate external Causes of Injuries using Struck (accidentally) by/ball (hit) (thrown)/baseball. Code W21.03 will be referred to as the guide for procedures.