Energy from food must be transformed into the bonds of _________ before it can be used by cells.
a.atp
b.gnc
c.nadp eliminate
d.cellulose
Why are coastal mountains in a straight line?
Infants are born with some connections between brain cells. True or false.
Answer:
True
Explanation:
It has been found that during birth, a child possess several neurons as well as synapses. These synapses indicate the connection between the brain cells. During birth a child has 2500 synapses per neuron which indicate pre-established neuron connections. With a scale of 2500 synapses per neuron, a child’s brain has billion of neurons which start developing and deleting additional neurons as a normal part of brain development activity.
Yes, infants are born with some connections already established between their brain cells, which play key roles in learning and memory. As a person grows and learns, new connections are constantly formed.
Explanation:The statement, 'Infants are born with some connections between brain cells' is true. In fact, infants are born with all the neurons (brain cells) they will have in their lifetime and there are already some connections, or synapses, established. The connections between these cells play essential roles in learning, memory and overall cognitive functioning. However, the brain constantly forms new connections as a person experiences and learns new things throughout their lifespan. This is a process known as neuroplasticity.
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What is cotton candy made out of?
Which species is most closely related to the origin moth species?
Answer: Lack of information
Explanation:
You need to give the full question with options to select. As I don't know the answer I can explain Species C 14 is wrong.
Here is the full question:
A scientist is trying to determine how closely related a moth species (Species Z) is to four other moth species (Species A, B, C, and D). He examined the DNA of each species and compared it to the study subject. He then created this table.
Species # of genetic differences
Species A 12
Species B 3
Species C 14
Species D 28
Which species is most closely related to the moth species (Species Z)?
- species A
- species B
- species C (X) Not the answer
- species D
Recent genetic studies have blurred the lines between moths and butterflies, showing that they may not have a true divergence. Moths like the Marbled emperor may share close relations with some butterfly species. The case of the peppered moth demonstrates industrial melanism and the dynamic nature of evolutionary processes within the Lepidoptera order.
Recent genetic studies suggest that moths (Sub-Order Heterocera) and butterflies (Sub-Order Rhopalocera) may not have a true divergence between them, as some species previously classified separately show close genetic relations. The Marbled emperor moth, for instance, which evokes the image of an owl, might be more closely related to certain butterfly species than to other moths. This information comes from a broader understanding of the phylogeny of insects, which is supported by cladograms showing evolutionary relationships.
The phenomenon known as industrial melanism further illustrates the adaptive nature of moths. The example of the peppered moth, Biston betularia, vividly demonstrates this. Before the Industrial Revolution in England, the typically light-patterned peppered moths blended in with lichen-covered trees, avoiding predation. With rising pollution, darker moths had an advantage, and their population numbers surged by the late 19th century. This real-time observation of a population's adaptive response points to shared evolutionary pressures and similarities within the Lepidoptera order, which encompasses both moths and butterflies.
which of the following organelles can be best be compared to a conveyer belt
A. ribosomes
B. golgi apparatus
C. nuclear envelope
D. E.R
what component of the earth's atmosphere is decreased due to photosynthesis
Using at least three sentences, explain the cycling of energy through the processes of photosynthesis and cellular respiration.
What is one evolutionary advantage pteridophytes have over bryophytes?
The answer is B. Pteridophytes have vascular tissue that aids in transport of water and nutrients within a plant.
Which statement best describes the relationship of photosynthesis and energy?
The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which stored in the bonds of glucose.
The process of photosynthesis is energy-releasing because the process converts light energy into free energy that can be used for cell functions.
The process of photosynthesis is energy-conserving because no energy is used throughout the process of forming glucose and oxygen molecules.
The process of photosynthesis is energy-wasting because photosynthesis is ineff
Answer:
Explanation:
B
Compare the properties of the parent and daughter cells in mitosis and meiosis and explain the reason for any differences. it needs to be simple and short
PLEASE HELP!!!
Mendel crossed two plants that were heterozygous for purple flower color. Which genotypes could he have used to represent the cross?
A. PP PP
B. Pp Pp
C. pp pp
D. Pp PP
The answer would be B. Pp'Pp.
Which is an example of a biomass fuel?
A)wood
B)coal
C)natural gas
D)petroleum
For the common ancestor of all the Bilateria, what was the fate of the blastopore?
For the common ancestor of all the Bilateria, what was the fate of the blastopore?
neither (N)
deuterostomy (D)
protostomy (P)
It is impossible to tell from the data provided.
Answer;
It is impossible to tell from the data provided.
Explanation;
Different animals can be categorized as either protostomes and deuterostomes based on certain features of their embryonic developments.
For those categorized as protostome; the features include; mouth from blastopore, spiral,determinate cleavage, and coelom from solid masses of mesoderm
Those categorized as deuterostome have features such as coelom from folds of archenteron, radial, indeterminate cleavage, and anus from blastopore.
By conserving energy and making energy transformations more efficient, fossil fuel use could be decreased. True or false
True
Fossil fuels like coal and petroleum takes millions of years to form. The rate of usage of fossils is not equal to its formation. As the rate of formation is slow it is important to use energy in an efficient way so that it is not consumed in a wrong way. The transformation of energy should be more efficient to avoid the wastage of energy. By doing this we can decrease the consumption of fossil fuels as it cause pollution in the environment. The burning of fossil fuel releases carbon dioxide, nitrogen oxide ,and other harmful gases which is injurious to the health of people. So, the fossil fuel should be used in a decreased manner.
Two heterozygous purple-flowering pea plants are crossed. If purple is dominant over white, what are the expected phenotypic results?
75% purple, 25% white.Doing the Punnett square will show that 1/4 will be PP and 1/2 will be Pp, so 75% will be purple. The last 25% (pp) will be white.
Why do meteorites that hit earth provide evidence of the composition of earths interior?
Meteorites provide evidence of the composition of Earth's interior through their composition, martian origin, and the presence of organic molecules.
Explanation:Meteorites that hit Earth provide evidence of the composition of Earth's interior for several reasons. First, many meteorites are primitive stones that are similar in composition to the outer layer of the Earth's crust. They contain silicates and metallic grains, which are also present in Earth's interior. Second, the analysis of gas bubbles trapped inside some meteorites has confirmed their martian origin. These bubbles match the atmospheric properties of Mars, providing insights into the composition of both planets. Lastly, the presence of complex organic molecules and amino acids in meteorites suggests that they could have delivered the molecular building blocks of life to Earth.
The only haploid cells in an organism are _____.
a.parent cells
b.gametes
c.homologous
Answer:
Gametes.
Explanation:
The haploid cells contains the single set of chromosomes as compared with diploid cells. Haploid cells are mainly produced by the process of meiosis.
The haploid cells in an organism includes the gametes. The gametes cells are produced by the process of meiosis. These gamete cells contains the half number of chromosomes as parent cell.
Thus, the correct answer is option (b).
______ is a pesticide that influenced society by increasing crop yield, but it also caused human and animal sickness
Dichlorodiphenyltrichloroethane or DDT is a pesticide and insecticide, which was very useful for the yielding of the crops. The DDT exceptionally increased the crop yield, but this pesticide was very harmful for the human and the animal health.
The DDT was well known for causing decreased fertility and reproduction in birds by causing death of the embryo due to thin egg shells. The DDT was very harmful to the aquatic animals. DDT is a carcinogen to humans, and a well known factor for the induction of breast cancer as well as leukemia, lymphoma, and pancreatic cancer.
Hence, the given blank can be filled with DDT.
. Panthalassa was ______.
the supercontinent that formed before Pangaea
one of the continents that formed from Pangaea
the large ocean that surrounded Pangaea
a body of water cut into the eastern edge of Pangaea
When a nucleus decays why do the particles fly apart at an extremely high speed? And what holds the particles together in the nucleus of a stable atom?
Mountains that have developed because of compressional stress—colliding plates that force rock layers upward—are called _____.
Answer:
folded mountains
Explanation:
A folded mountain is formed when two plates moving together under compression stress.Due to these compression stress thrust line or pressure is created which causes folding of layer within the upper part of earth's crust thereby forming large fold-like structures on the earth's crust.
Most of the existing mountainous ranges are examples of fold mountains
Hence, Mountains that have developed because of compressional stress—colliding plates that force rock layers upward—are called __Folded Mountain
Which of the following best summarizes the function of the respiratory system?
A. to transport oxygen to cells and wastes away from cells.
B. to protect the organs in the chest cavity C. to move oxygen from the air into the body and carbon dioxide from the body into the air
D. to provide a barrier between the body and the environment
C** Which of the following is not true about the structure of an alveolus?
A. it has thick walls to trap gases that enter during breathing.
B. it has high surface area to allow lots of gas exchange.
C. it has a high concentration of oxygen and a low concentration of carbon dioxide.
A**
describe the process of translation ...?
Translation is the process by which the information now on the RNA molecule is used to make a new polypeptide chain
a. The mRNA strand binds on to a ribosome at the end with the 'start' condon AUG. A tRNA carrying the amino acid methionine at one end and the anticodon UAC at the other, binds to the 'start' condon on the mRNA within the ribosome.
A second tRNA binds to the next condon. Its amino acid links with a peptide bond to the first amino acid.
b. The first tRNA is released from the ribosome. The ribosome moves along the mRNA strand one condon at a time. Two tRNAs at a time are temporarily bound within the ribosome and their amino acids linked together. A polypeptide chain forms
c. When a 'stop' condon is reached the polypeptide chain is released into the cytoplasm.
d. A polypeptide chain is only the primary structure of a protein. Each protein has a particular conformation or shape formed by the twisting or folding of its polypeptide chains
Proteins are vital components of a cell. If the DNA sequences are changed by mutation, protein production will change. If no protein or a different is made then a cell's structure or activites may also change. In this way any variation in the genetic material will be expressed by the cell. Variation shown by an organism is the basis on which natural selection can act.
Translation is a process in Biology where mRNA's information is used to create a protein. The mRNA binds to a ribosome, tRNAs bring the corresponding amino acids, and a polypeptide chain is formed. It halts when it reaches a 'stop' codon.
Explanation:Translation is a biological process by which information coded in mRNA is used to synthesize a protein. It involves three primary steps:
The mRNA strand binds to a ribosome starting at the 'start' codon AUG. An tRNA carrying the amino acid methionine with an anticodon UAC pair up with the 'start' codon on the mRNA within the ribosome. A second tRNA then binds to the next codon and links its amino acid to the first, forming a peptide bond.The first tRNA is released while the ribosome moves along the mRNA string. Two tRNAs temporarily bind to the ribosome, resulting in the linkage of their corresponding amino acids and forming a polypeptide chain.Upon reaching a 'stop' codon, the production ceases and the newly formed polypeptide chain is released into the cytoplasm.It's important to note that the polypeptide chain formed is the primary structure of the protein. If any mutation occurs in the DNA sequence, it affects the protein production, therefore, changing the cell's structure.
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The energy of the electrons passing along the electron transport chain is directly used to???
Answer:
Option D
Explanation:
Please see the attachment
moving your jaw forward causing an underbite is called
Moving your jaw forward causing an underbite is called protraction.
What is protraction?
The group of bones in your jaw is where your teeth are held. There are two key components to it. The maxilla is the upper portion. It is stationary.
Chin is where the mandible's two halves come together. The temporomandibular joint is the point at which your mandible and skull converge.
Any opposable articulated structure at the mouth's opening is referred to as a jaw, and it is often utilized to grab and manipulate food. The term "jaws" is often used widely to refer to the entire group of structures that make up the vault of the mouth and function to open and close it.
Therefore, Moving your jaw forward causing an underbite is called protraction.
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Haploid cells are
A) mutated cells with missing chromosomes.
B) fused cells with double the chromosome number.
C) sex cells with half the original chromosome number.
D) sex cells with the original chromosome number as the parent cell.
Answer: The correct option is -
C) sex cells with half the original chromosome number.
Explanation:
Sex cells are the reproductive cells, which are also known as gametes (such as eggs and sperms) and are produced through meiosis.
Meiosis is a type of cell division that occurs during gamete formation, specifically in sexually reproducing organisms.
It is also called reductional division as it produces haploid sex cells, which possess half the number of original chromosomes.
Thus, option C) is the right answer.
why are the male testes located in the scrotum outside the body?
Final answer:
The male testes are located in the scrotum outside the body to ensure a cooler temperature necessary for effective sperm production. The scrotum regulates this temperature through its position and muscle contractions, optimizing conditions for spermatogenesis. Incorrect temperature can lead to infertility, highlighting the importance of the testes' external positioning.
Explanation:
The male testes are located in the scrotum outside the body to maintain a temperature that is conducive to sperm production. Sperm are known to be immobile at the core body temperature, which makes it essential for the testes to be situated in an environment that is approximately 2 degrees Celsius cooler than the body's internal temperature. This cooler temperature is necessary for spermatogenesis, the process of sperm production, to occur effectively.
The scrotum, a sac of skin located between the upper thighs, plays a critical role in regulating this temperature. It does so by adjusting its position relative to the body: contracting to pull closer to the body for warmth when too cold, and relaxing to move away from the body to cool down when necessary. Such temperature regulation is vital as it can impact fertility - with infertility being a consequence in land mammals when the testes do not properly descend during fetal development.
Additionally, the scrotum is equipped with smooth muscles that help in this temperature regulation by contracting or relaxing as needed. This precise temperature control in the scrotal environment optimizes conditions for spermatogenesis and ensures the stability of reproductive cells, underlining the critical reason why the testes are external to the body.
Which structure,composed mainly of proteins and lipids, aids in maintanining homeostasis in a cell?
20 POINTS MORE THAN ONE ANSWER
Which examples of artificial selection are caused by human activity without people even realizing it?
A. an increase of tuskless Asian elephants because of ivory poaching
B. growing human organs from pig stem cells because of increased research on stem cell therapy
C. a decrease in rams’ horn size because of hunters’ preference for long-horned rams
D. cows producing milk with more protein because of genetic engineering
E. chickens producing more meat because of selctive breeding
Answer:
A and C
Explanation: