The answers are: D natural selection of favorable traits and C.mutations present only in body cells
Hope this helped!
The two desirable qualities may be combined in a new variety of strawberry plant by cloning. In the past humans developed varieties of dogs such as the German Shepherd and the bearded collie using selective breeding for particular traits, and A common practice used by breeders to maintain a desired trait in dogs is artificial selection. The correct option for question 1 is A, 2 is A, and question 3 is A.
What is artificial breeding?Artificial selection, also renowned as selective breeding, and is basically the practice of sorting for desirable characteristics in agricultural products or even animals instead of allowing the species to change and evolve naturally, as in natural selection.
Darwin took into account two sorts of artificial selection in natural selection in The Variation of Animals and Plants Under Domestication namely methodical selection and unconscious selection.
Cloning allows the two quality attributes to be mixed in a fresh batch of strawberry plants.
In the previous era it is the humans developed dog breeds including the German Shepherd and the bearded collie by selective breeding for specific traits.
Artificial selection is a standard procedure used by breeders to establish a desired trait in dogs.
Thus, the correct option for question 1 is A, 2 is A, and question 3 is A.
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What cell lacks a nucleus
Answer:
bacteria cell is the answer hope it will help
What is the main type of weathering in deserts?
physical weathering
chemical weathering
weathering by organic acids
Answer:
The major type of weathering that takes place in a desert in Physical Weathering.
Explanation:
Physical weathering also known as mechanical weathering takes place in deserts. This weathering takes place due to physical or mechanical forces. Frost chattering, temperature fluctuation also causes physical weathering.
In the desert, there is a fluctuation in temperature. In deserts, the temperature during the day will be very high and at night the temperature will be very low. As a result, the rocks expand during daytime due to heating and at night the rocks undergo contraction due to the reduction in temperature. Hence the rocks are weakened followed by the disintegration or breaking of rock.
Answer:
physical weathering
Explanation:
what is the process of people moving to city areas?
The Process of Urbanisation is where people move from rural areas to urban areas usually because of economic factors.
in the process of___, a protein channel helps the diffusion of glucose across the membrane
Facilitated Diffusion
Facilitated diffusion is the type of diffusion in which the molecules are transported across the channels with the help of transport molecules. Facilitated diffusion is the answer.
What are types of facilitated diffusion ?The types of facilitated diffusion are carrier protein transport and the ion channel transport proteins.
In the process of the facilitated diffusion various molecules are diffused across plasma membrane with help from the membrane proteins such as the channels with carriers. A concentration's gradient lives for these molecules such that they all have potential in order to diffuse in (or out of) cell by just moving down it.
Facilitated diffusion thus allows polar with the charged molecules such as the carbohydrates, amino acids , nucleoside and the ions for crossing the plasma membrane. Two main classes of the proteins that helps facilitated diffusion are generally described as : carrier proteins and the channel proteins.
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PPLLLZZZZ HELP ME!!! I AM TIMED!! WILL REWARD!!!
What natural factors do scientists study to understand long-term climate change? Check all that apply.
Earth’s position
pollen grains
tectonic activity
volcanic activity
solar energy
the answer is :
1)Earth’s position
3)tectonic activity
4)volcanic activity
5)solar energy
Answer:
Options (1), (3), (4) and (5)
Explanation:
The factors that are needed to study in order to understand better about the long-term climate changes are the position of the earth with respect to the sun, type, and intensity of the tectonic and volcanic activities and also the amount of solar energy entering into the earth's atmosphere.
If the position of the earth changes with respect to the sun and also if changes occur in its plane of orbit, then there will be significant changes in the climate of the earth.
Rapid and high intensity tectonic and volcanic activities can also lead to the increase in the earth's global temperature as it will produce a large amount of gases and dust particles from the volcanoes that are trapped in the atmosphere and does not allow the sunlight to reach the ground surface. Thus, affecting the earth's climate.
The increasing amount of solar radiation can also enhance the earth's climate as it will significantly warm the surface of the earth.
Thus, the correct answers are options (1), (3), (4) and (5).
Which of the following is composed of a collection of planets, their moons, and other objects orbiting a central star? Earth Galaxy Solar system Sun
the answer to this question is solar system, earth is a singular planet, galaxy contains stars but does dot orbit around a central star, and the sun is a star
Answer: (C) Solar System
For a gene with a dominant allele T and recessive allele t, what proportion of the offspring from a TTxTt are expected to be homozygous dominant
Homozygous being (TT): 50%
Heterozygous being (Tt): 50%
Hetero- different
Homo- the same
The proportion of the pure breed dominant is expected to be 50%.
Law of Dominance:
In heterozygous organisms, dominant traits conceal the recessive one. In the F1 generation of a pure cross, all the organisms are heterozygous.
Given Here,
A gene with a dominant allele T and recessive allele t,
The cross between pure breed Dominant (TT) and Heterozygous(Tt)
T t
T TT Tt
T TT Tt
In Punnett square, the ratio between pure breed dominant and heterozygous is 1:1.
Therefore, the proportion of the pure breed dominant is expected to be 50%.
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What kingdom does this organism most likely belong is?
This organism most likely belongs in the Animalia kingdom
Answer:The correct answer is fungi
Explanation:
Trust me I put my life on the first answer above and it was wrong. The correct answer is fungi
A scientist crossed a pea plant with a green pod and a pea plant with a yellow pod. The scientist collected 100 seeds from the cross. The table shows the trait for pod color observed when the plants from the cross were grown. Which statement correctly explains why all the offspring have the trait for a Yellow pod? A) Genes were inherited only from the plant with a Yellow pod, so only the gene for a Yellow pod was expressed.
B) Genes were inherited only from the plant with a Green pod, but only the gene for a Yellow pod was expressed.
C) Genes for both a Green pod and a Yellow pod were inherited, but only the gene for a Yellow pod was expressed.
D) Genes for both a Green pod and a Yellow pod were inherited, so the genes for both types of pods were expressed.
Answer: C) Genes for both a Green pod and a Yellow pod were inherited, but only the gene for a Yellow pod was expressed.
Explanation: In a diploid organism as the pea plant, a single gene has two alleles or versions, one on each chromosome. Each of these alleles can either be dominant or recessive.
Dominant alleles, such as that producing a yellow pod, will mask the contribution to the phenotype of the second allele, which is recessive. Here, the yellow pod allele will mask the contribution of the green pod allele. Thus, the offspring will have the phenotype (pod color) yellow.
However, both alleles for pod color will be present in the offspring as each parent will provide one chromosome during sexual reproduction.
Essential amino acids cannot be produced by the body, so they must come from our diet. We can get them from eating foods that contain which biomolecule?
A.
protein
B.
complex carbohydrate
C.
fats
D.
disaccharides
Answer:
We can get essential amino acid from eating foods that contain the biomolecule; protein.
Proteins are macro nutrients that contains amino acids. Amino acids are composed of organic compounds such as carbon, hydrogen, nitrogen, oxygen or sulfur which are the building blocks of proteins. The body requires various amino acids for its growth and proper functioning. The essential amino acids such as histidine, isoleucine, lysine, phenylalanine, tryptophan and valine cannot be made by the body but can be obtained through diets. The best sources of essential amino acids are animal proteins such as eggs, meat, and poultry.
Explanation:
Give an example of allopatric speciation.
Allopatric speciation is said to occur when two groups of organisms are separated by a physical or geographical barrier. Examples of such barriers are ocean, mountain range, rivers, etc. A good example of allopatric speciation is Galapagos finch. Different species of this bird can be found in different islands at Galapos, which is located at Pacific Ocean off South America. The ocean is barrier that isolate the species from one another.
Example of sex linked traits
male tesosterone can affect facial hair, voice deepness, testicle size, muscle mass, agressiveness, etc
Sex-linked traits are determined by genes located on sex chromosomes. In humans, examples of sex-linked traits include certain conditions such as color blindness, hemophilia, and muscular dystrophy. These traits are more common in males because they receive one X chromosome from their mother, which if contains the recessive X-linked trait, it's expressed in males.
Explanation:Sex-linked traits are characteristics determined by genes located on the sex chromosomes. These traits tend to express differently in males and females due to the difference in the sex chromosome composition, XY in males and XX in females.
Examples of sex-linked traits can be seen in human genetics, where the alleles for certain conditions such as color blindness, hemophilia, and muscular dystrophy are X-linked. When a female parent who is homozygous for a recessive X-linked trait, she will pass the trait on to 100 percent of her male offspring, as they inherit their father's Y chromosome.
In addition, females who are heterozygous for these diseases are referred to as carriers, may not show any phenotypic effects, but will pass the disease to half of their sons and carrier status to half of their daughters. Thus, recessive X-linked traits tend to appear more frequently in males than females.
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HELP ME I PICKED AN ANSWER ON ACCIDENT SOWWIE
Sorry I don’t know what it is. Hope you aren’t mad at me.
Why is ATP necessary in cellular functions
Because it transports energy for all cellular metabolic activities.
Hope this helps! :)
(if you could rate/thank me that would be amazing!)
What do all organisms need? Check all that apply.
multiple cells
air
blood
water
food
a place to live
Answer: air, water, food , a place to live
Explanation:
The living beings are composed of multiple cells, blood and water. They require certain necessities to survive and reproduce. The air is necessary for respiration. Water is necessary for fulfilling the thirst and maintaining the balance of fluid in the body. Food is necessary as it provides energy to do various biological functions. A place to live is necessary as it is the place where the living being rests, eat food and does other important activities.
Answer:
Just for people who still need the answer, it's b,d,e, and f
Explanation:
b. air
d.water
e. food
f. a place to live
plzzz help i cant fail this!
Don't know if you still need the answer but the answer is fluorinated gases.
In simple dominance, what is the result when a dominant allele pairs up with a recessive allele?
Offspring display both forms of the trait.
Offspring display an intermediate form of the trait.
The dominant form of the trait shows.
The recessive form of the trait shows.
In most cases, the dominant form of the trait shows.
Answer:
Option C, The dominant form of the trait shows
Explanation:
In simple dominance the trait associated with the dominant allele is expressed while the trait associated with the recessive allele is oppressed. For example –
Let’s assume a flower in which the dominant allele trait is red color and the recessive allele trait is white color. When an offspring of this flower is produced containing one dominant allele and one recessive allele, the color of it would be red only because only the dominant allele expresses its trait.
Hence the correct answer is option C
which of these is an innate adaption
A. hunting in packs
B. mating
C. fighting for protection
D. All behaviors are innate
Answer:D
Explanation: all. Behaviors are innate
Answer: Mating is the correct answer.
Explanation: Innate behavior is also called instinctive behavior. Instinct is the ability of an animal to perform a particular behavior in response to a given stimulus the first time the animal is exposed to the stimulus. In other words, an instinctive behavior does not have to be learned or practiced. Answer is confirmed correct on test. I hope this helps you! Thanks!
What uses bacteria to copy dna
To copy the DNA, recombinant DNA method use bacteria such as E. Coli whose plasmids has been combined with various gene to produce the substance that is wanted.
a dna tester and the thing to test your pee
If a chemical was placed in the water that caused all of the mosquito larvae to die, what would be one possible change in the food chain?
A). The number of Algae would decrease.
B). The number of Pike would increase.
C). The fisherman would catch less pike.
D). The number of dragonfly larvae would increase.
QUESTION 7
is an organism that only eats other animals.
omnivore
producer
carnivore
herbivore
The answer is carnivores.
The answer is carnivore.
Explanation:
A omnivore eats both plants and animals. A producer, well produces. A herbivore only eats plants. Please mark BRAINLIEST if this helped!:)
A high birth to death ratio leads to smaller populations. Please select the best answer from the choices provided T F
This statement is False.
Answer: False.
Explanation:
A high death to birth ratio leads to a smaller population. This can be defined in this way. If the number of births at a place is greater than the number of deaths at that particular place then the population size of that particular place will be more.
For a population to be small the number of deaths should be more than the number of births.
Please Answer ASAP!!
Read the scientific question below.
"Does sunlight make plants live?"
What is a likely hypothesis for the question?
A.Yes, sunlight makes plants live.
B.No, sunlight does not make plants grow.
C.If we place a plant in the shade, then it will die.
D.If we place two plants in sunlight, then they will grow differently.
All living things need water and food. Light is nourishment for plants. They use it in a vital process known as photosynthesis, where chloroplasts capture the energy of light, sparking multiple metabolic reactions — one of which creates plant sugars (food).
So your answer would be A. Yes, sunlight helps plants to live
Which of the following is a process by which long-term carbon is released into the atmosphere? (2 points)
Combustion
Diffusion
Photosynthesis
Respiration
Either Combustion or Respiration
Answer:
Combustion
Explanation:
8) What are the differences between asexual reproduction and sexual reproduction?
A) Offspring are produced only by sexual reproduction.
B) An exchange of genetic material only occurs with asexual reproduction. C) Sexual reproduction involves one parent organism, while asexual involves two parent organisms.
D) Asexual reproduction produces offspring identical to the parents, while sexual reproduction produces offspring different from the parents.
Answer:Option D
Explanation:
The continuity of organism on Earth is maintained by the process of reproduction.There are two modes of reproduction. One is sexual reproduction and other is a sexual reproduction.
The asexual reproduction is the process by which identical progeny is produced by single parent. There is no need for two parent.
In case of sexual reproduction the offspring produced is not the exact copy of the parents they show variation. This variation in the offspring provides stability to the organism.
What is the relationship between DNA, codons, and proteins
the relationship between DNA, codons, amino acids, and proteins. During transcription, DNA is transcribed into messenger RNA when the the base codes in DNA are copied. mRNA serves as the code for assembling amino acids in a certain order.
The genetic information encoded in the nucleotide sequence flow from DNA to codons of the mRNA sequence and then from the mRNA to protein.
During gene transcription, a specific DNA sequence is used to create a complementary RNA sequence called messenger RNA (mRNA).Subsequently, this mRNA is used as a template to create a protein by a mechanism called translation.The linear order of triplets of nucleotides or 'codons' in mRNA determines the order of amino acids in the growing polypeptide chains (i.e., the protein).In conclusion, the genetic information encoded in the nucleotide sequence flow from DNA to codons of the mRNA sequence and then from the mRNA to protein.
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carbon has six proteins, six neutrons, and six electrons. Oxygen has eight protons, eight neutrons and eight electrons.
Carbon which has six protons,electrons but may not have six neutrons because to determine the number of neutrons you need to know the atomic number(i.e number of protons/electrons) and the mass number.
Neutron number=Mass number-Atomic number
The same applies to oxygen.
Carbon dioxide and oxygen have different atomic numbers.
What is the atomic number?The number of protons in an atom's nucleus, which is a chemical element's defining feature and determines its position in the periodic table is called as the atomic number.
Each kind of atom has a different number of the three particles. Protons and neutrons are in the center, or nucleus, of the atom. Carbon has an atomic number of 6. That means a carbon atom has 6 protons, 6 neutrons, and 6 electrons. Oxygen has eight protons, eight neutrons, and eight electrons. Oxygen is different from carbon because it has more particles.
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Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun. What does the force of gravity depend on?
The mass of an object and the distance of the object.
Where would muscle A in the image set most likely be found?
Lining of a tendon
Lining of the thigh bone
Lining of a heart ventricle
Lining of the intestines
Answer:
Lining of the heart ventricle.
Explanation:
Human heart is divided into four chambers: two atrium and two ventricles. The ventricle is located at the bottom of the heart.
The given diagram correspond to the lining of the heart ventricle. The pulmonary circulation of the heart to the lungs occur through the right ventricle. The wall of the ventricles are thicker than atria.
Thus, the correct answer is option (3).
Muscle A is found in the lining of a heart ventricle.
What are the characteristics of heart muscles?The human heart contains cardiac muscle, often known as the myocardium. Cardiovascular muscle is controlled by an involuntary force.There are three layers that make up the heart: the pericardium, myocardium, and endocardium. Heart muscle is not found in the endocardium. The inner lining of the heart chambers and valves is made up of simple squamous epithelial cells. The epicardium, pericardial space, parietal pericardium, and fibrous pericardium are all components of the pericardium, a fibrous sac that surrounds the heart.The contractility of the heart and consequent pumping motion is caused by the cardiac muscle. The heart muscle must contract with sufficient force and blood flow to meet the body's metabolic needs. The formula for this idea, known as cardiac output, is heart rate x stroke volume.It is based on the heart muscle's ability to contract and how frequently that ability is used. The metabolic demand changes along with the heart's ability to contract.
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Given the sequence of DNA nucleotide bases TAGTAGTAG, give the complementary strand of mRNA produced during transcription.
A) AAGGUAGUA
B) AAUCGGAAC
C) AUCAUCAUC
D) GAGGAGGAG
T=A
A=U
G=C
so the answer is (C)
Answer:
C) AUCAUCAUC
Explanation:
The genetic information which is stored in DNA is transcribed into a complementary strand of mRNA during protein synthesis. This is called transcription. In this process, the DNA nucleotide bases transcribed the complementary bases of mRNA. In the given question, the sequence of DNA nucleotide bases is TAGTAGTAG which will be transcribed on mRNA complementary bases as AUCAUCAUC as A pairs with U and G pairs with C in mRNA.