Answer:
“Food chain” and “food web” relate to the ecological cycle of life in which one species eats another to survive. While a “food pyramid” is used to describe the ideal balanced diet for a human being.
Explanation:
which statement best explains why some cells in the reproductive system only respond to certain hormones
Answer:
These cells have specific types of receptors on their membranes.
most of the carbon on Earth is stored in the form of
Answer:
Gas
Explanation:
Carbon is stored as carbon dioxide gas in our atmosphere. It is in a repetitive cycle called the carbon cycle in which carbon travels from the atmosphere to humans, then back to the atmosphere.
What could explain the curve in this population growth graph?
a reduction in predators
a natural disaster
a population crash
a reduction in the birth rate
Answer:
d. a reduction in the birth rate
Explanation:
Answer:
D
Explanation:
Mosquitoes can often transmit viruses from one organism to another, acting as _______ of the virus.
A. symbionts B. parasites C. bacteriophage D. vectors
Hello There!
Mosquitoes can often transmit viruses from one organism to another, acting as VECTORS of the virus.
Answer
(D). vectors is a correct answer
Explanation:
A vector transferred the infected agent from the animals which are infected to the human, which results in vector-borne disease.Mosquitoes are one of the examples of the biological vector which causes vector-borne diseases by carrying an infectious agent they transfer to the human through its bite.Disease which is transmitted by the mosquitoes is dengue, yellow fever, malaria, etc. Thus this how mosquitoes can transmit viruses from one organisum to another by acting as biological vector which carry infectious agent.What is the product of transcription and translation
Answer: the product of transcription is RNA, while the product if translation is polypeptide amino acid chain which form a protein
Answer:
Transcription can be defined as the process by which the the information from the DNA is copied to messenger RNA for the protein synthesis. This process takes place in nucleus.
We can say the product of Transcription is mRNA.
The process by which the information is used to build protein is known translation. Protein synthesis takes place in the cytoplasm.
The product of translation is protein.
Why are common names not always useful to biologists?
Answer:
One reason why many common names are not always useful to biologists is because "They can apply to more than one animal," since terms like "cat" and "dog" refer to large families of animals, not specific ones.
What controls activities within a eukaryotic cell?
What causes differences in air pressure? the windchill factor the horizontal movement of air the speed at which wind moves the unequal heating of Earth’s atmosphere
Answer:
D) unequal heating of the earths atmosphere
Explanation:
Can't explain taking timed test, But I did get this question correct in an assignment.
Hope this helped!
Have a good day!
The unequal heating of Earth's atmosphere causes differences in air pressure. Hence, option D is correct.
What is air pressure?Everything you touch is pressed upon by the weighty air that surrounds you. This pressure is referred to as air pressure or atmospheric pressure. It is the force that the air above a surface applies to it while gravity pulls the surface toward Earth. A barometer is frequently used to measure atmospheric pressure.
The molecules and atoms that make up the many layers of the atmosphere are continually moving in arbitrary directions. Despite their small size, when they hit a surface, they apply pressure that humans perceive as a force.
The unequal heating of Earth's atmosphere causes differences in air pressure. Hence, option D is correct.
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Which statement correctly describes glucose (C6H12O6)?
Answer: What you have is correct!
Explanation: Nah, honestly I just looked at google, but that is correct tho.
C6H12O6 is a chemical formula. It is a specific type of chemical formula that people often call a molecular formula. A molecular formula communicates the atomic composition of a molecule. Thus, by writing C6H12O6, we are referring to a molecule composed of six carbon, twelve hydrogen, and six oxygen atoms.
Answer:
D: It is a compound made of twenty-four total atoms. Explanation:
The South Korean government was led by President ..
Answer:
Syngman Rhee
He was elected the first president of the Republic of Korea from July 24, 1948 - April 26, 1960.
Syngman Rhee led the South Korean government after winning the elections in 1948.
Who was Syngman Rhee?
The very first government established in Korea was in August 1948. The First Republic of Korea was formed when the US military army ended its rule in Korea after Japanese colonialism.
In 1948, the general elections were conducted, and as a result, Syngman Rhee of the Liberal party was chosen as the first President of the Republic of Korea.
He served his term from 1948 to 1960 and was the only candidate from the Provisional Government to be elected as the President. He resigned from his post due to various reasons which led to the formation of the second Republic of Korea.
Therefore, Syngman Rhee was the President of the First Republic of Korea.
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What statement correctly compares chemical reactions with nuclear reactions?
Chemical reactions involve the transfer or sharing of electrons without changing the nuclei, while nuclear reactions involve changes in the nucleus, leading to different elements and the release or absorption of a massive amount of energy.
Explanation:Chemical reactions and nuclear reactions differ fundamentally in the processes and changes that occur at the atomic level. In a chemical reaction, electrons are transferred or shared between atoms, leading to the formation and breaking of chemical bonds. However, during these reactions, the nuclei of the atoms remain unchanged, and the number of atoms of each element is conserved, indicating adherence to the law of conservation of mass. On the other hand, a nuclear reaction involves changes to the nuclei themselves, which can result in the transformation of elements and a notable release of energy.
Nuclear reactions often involve the rearrangement of nucleons (protons and neutrons) within the nucleus, leading to the emission or absorption of particles, such as alpha (α) particles, beta (β) particles, or gamma (γ) rays. These reactions are accompanied by enormous energy changes, far exceeding those of chemical reactions. Nuclear reactions can lead to a change in mass that, according to Einstein's equation E=mc², corresponds to a significant release or absorption of energy. Unlike the case of chemical reactions, in nuclear reactions the laws of conservation of mass and energy are not individually valid but are combined into the law of conservation of mass-energy.
The energy changes in nuclear reactions can be observed in processes such as fission, where heavy nuclei split apart releasing energy, or fusion, where light nuclei combine to form a heavier nucleus, also releasing energy. The amount of energy involved in nuclear reactions is orders of magnitude greater than for chemical reactions, illustrating the major difference in energy scales between the two types of reactions.
3. Roads in urban areas are generally
Answer:
parallel and intersect at right angles
Explanation:
The roads in the urban areas tend to be very well organized and constructed. They tend to be parallel to each other, and also to intersect at right angels. The reason for this kind of building of the roads in the urban areas is to make the movement in the urban areas much easier and more efficient, mostly putting the accent on the traffic. It is a fact that the traffic is a big problem in the urban areas, so by constructing the roads in a well organized manner, the traffic jam eases up and the citizens can move more easily and quickly.
Answer: C
Explanation: I am doing the class as well
How does the body maintain homeostasis when its inner temperature becomes higher than the normal body temperature?
Answer:
Blood vessels dilate, resulting in heat loss to the surrounding.
Sweat glands secrete fluid. As the fluid evaporates, heat is lost from the body.
Explanation:
When the inner temperature becomes higher than the normal body temperature;
Blood vessels dilate, resulting in heat loss to the surrounding.
Sweat glands secrete fluid. As the fluid evaporates, heat is lost from the body.
In this way the body is able to maintain homeostasis following a rise in body temperature.
Answer:by sweating (b)
Explanation:
When is a hurricane considered to have made landfall?
A. When at least one inch of rain occurs
B. When the eye reaches the land mass
C. When the outer wind bands make landfall
D. When it moves inland from the coast
Question 14 (5 points)
All organisms on earth require energy to live. Which statement best describes how ferns,
people, and flatworms obtain energy?
A.Ferns produce ATP during photosynthesis, while flatworms and people produce ATP
during digestion.
B.Ferns and flatworms absorb food from their surroundings, while people must digest food
found in their surroundings.
C.Producers such as ferns do not require a source of energy, while flatworms and humans
must consume food for energy.
D.Ferns produce glucose that can be broken down by cellular respiration, while flatworms
and people digest foods containing glucose for use in cellular respiration.
Answer:
A.
Explanation:
Ferns are a type of plant, therefore the way they obtain will be the same way as any other plant: by creating energy (ATP) during photosynthesis.
Flatworms cannot create their own energy, they're not autotrophic. Therefore, they must obtain energy by digesting any food they may find.
Hope it helped,
BiologiaMagister
- Your license can be cancelled for failing to complete a required school.
A. True
B. False
Answer:
I believe it's true but I'm not entirely sure.
Answer: True
Explanation:
The driver's license can be cancelled for the following negligence and circumstances:
1. If the driver gives false information or identity.
2. If the driver fails to give the complete the driver school he/she will not receive a valid driving licence.
3. If the licence consists of errors.
On the basis of the above description, the given statement is true.
which is a gamete
A. cervix
B. egg
C. embryo
D. estrogen
Answer:
Egg
Explanation:
Apex
What codes for RNA?
A. DNA
B. Protiens
C. Polypeptides
D. Amino Acids
Hello!
Answer:
The correct answer is D. DNA
Explanation:
DNA is code for RNA.
Hope this helps you!
Have a nice day! :)
Thank you so much!
-Charlie
Hello There!
"DNA" codes for "RNA"
DNA stands for "Deoxyribonucleic Acid" and is the hereditary material in humans and almost all other organisms.
goup of cells that work together to perform a specific function.
Answer: Tissue
Explanation:
The DNA double helix is antiparallel. This means that the two strands
A. are parallel and are identical to each other.
B. cross over each other many times.
C. are parallel and run in opposite directions.
D. are parallel and are the mirror images of each other.
C. are parallel and run in opposite directions.
Explanation – Deoxyribonucleic acid (DNA) is double stranded molecule present inside the nucleus of the cell and has double helical symmetry. The two strands run or proceeds antiparallel to each other which means that one strand proceeds from 5' to 3' direction while the other strand proceeds from 3' to 5' direction.
It so happens because the nitrogenous base from one strand binds to its complimentary base pair of the other strand. Hydrogen bond is the bond that connects nitrogenous bases of two strands.
Answer:
C
Explanation:
What is it called when two forms of a trait are both dominant at the same
time?
A. Alleles.
B. Incomplete dominance.
c. Recessive.
D. Codominance.
Answer:
codominance
Explanation:
Answer:
D Codominance..it's correct I just did it:)
Which of the following practices that are needed to run a nuclear power plant has a negative impact on both air and water?
a.
cooling of the power plant
b.
mining of uranium
c.
storage of radioactive waste
d.
monitoring the reactor
Please select the best answer from the choices provided
A
B
C
D
answer is (B)
Answer:
b.
mining of uranium
Explanation:
Uranium is one of the radioactive elements o the earth's crust. Uranium mining is associated with quite a number of demerits despite its numerous advantages in nuclear energy production. Being a radioactive substance, uranium mining impacts both the air, surface water as well as underground water negatively.
Answer:
it is actually
b( mining of uranium)
what do complement proteins do?
a- they heal tissue.
b-they cause fever
c-they signal phagocytes
d-they transport hormones
Answer:
Heal tissue
Explanation:
The complement system is a part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promotes inflammation, and attacks the pathogen's cell membrane.
Which organ controls breathing? lungs alveoli heart diaphragm
Some protists, called _______, can use sunlight to produce their own food but can also switch to consuming food from their environment.
A. chemotrophs
B. heterotrophs
C. autotrophs
D. mixotrophs
Some protists, called mixotrophs can use sunlight to produce their own food but can also switch to consuming food from their environment.
What is a protist?Protists are eukaryotic, microscopic organisms that may be unicellular or multicellular.
In terms of feeding, some protists are autotrophic while some are heterotrophic.
The difference between them is that the autotrophic protists produce their own food through the process of photosynthesis, while the heterotrophic protists cannot photosynthesize but they obtain their food by ingesting other organisms or decaying organic matter.
Thus, option "D" is correct.
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what supplies deoxygenated blood from lower part of the body
Answer:
The superior vena cava and inferior vena cava are veins that return deoxygenated blood from circulation in the body and empty it into the right atrium. The pulmonary artery carries deoxygenated blood from the right ventricle into the lungs for oxygenation.
Explanation:
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HELP!! Are the Earth's ocean floor and continents the same age geologically? Why or why not?
Answer:
No, the ocean floor is much younger because new crust forms there.
Explanation:
The Earth's ocean floor and the continents are not the same age geologically. The ocean floor is much younger because new crust forms there. New crust is usually formed at the oceanic spreading centers. This process takes place when the oceanic plates pull apart, and molten lava wells up from the mantle to fill the openings. This effectively functions as a recycling system for the oceanic lithosphere.
What can be classified as
macronutrients,micronutrients,and water
Final answer:
Macronutrients include carbohydrates, proteins, lipids, and water, which the body needs in relatively large amounts. Micronutrients include vitamins and minerals that the body needs in smaller amounts.
Explanation:
Macronutrients are nutrients that the body needs in relatively large amounts. They include carbohydrates, proteins, lipids, and water. Carbohydrates are the body's main source of energy and can be found in foods such as bread, rice, and potatoes. Proteins are essential for growth and repair of tissues and can be found in foods like meat, fish, and beans. Lipids, also known as fats, provide energy and insulation and can be found in foods like butter, oil, and nuts. Water is essential for many bodily functions and can be obtained from beverages and foods with high water content.
Micronutrients are nutrients that the body needs in smaller amounts. They include vitamins and minerals. Vitamins are organic compounds that help regulate various physiological functions in the body. They can be obtained from a variety of foods such as fruits, vegetables, and dairy products. Minerals are inorganic substances that are necessary for proper bodily functions. They can be found in foods like meat, dairy products, and leafy greens.
Please help with as much as you can. Thank you. I will give brainlest.
Horizontal gene transfer can occur through several mechanisms. Why is this relevant to humans?
A. Bacteria can divide quickly using binary fission.
B. Bacteria can exchange genes for resistance to antibiotics in this way.
C. Viruses can infect bacteria, inserting their genetic material into the bacterial DNA.
D. Bacteria are never beneficial to humans.
All animals are
A. autotrophs.
B. heterotrophs.
C. polytrophs.
D. biotrophs.
Species can vary in several ways. Which of the following is one of Darwin's ideas that was accepted by most scientists of his time due to the large number of fossils being discovered at that time?
A. Species vary around the world.
B. Species have specific adaptations to their local environment.
C. Species that live in seawater can also live on mountains.
D. Species change over long periods of time.
Dinoflagellates can perform photosynthesis and provide energy for themselves and for the coral that they live near. The coral provide protection to the dinoflagellates. This is an example of a
A. parasitic relationship.
B. commensalistic relationship.
C. mutualistic relationship.
D. dependent relationship.
Dinoflagellates can perform photosynthesis and provide energy for themselves and for the coral that they live near. The coral provide protection to the dinoflagellates. This is an example of a
A. parasitic relationship.
B. commensalistic relationship.
C. mutualistic relationship.
D. dependent relationship.
The idea that viruses originated as genetic material that was able to move within a genome, eventually exiting a cell and entering another is the _______ hypothesis.
A. coevolution
B. regressive
C. recessive
D. progressive
The wings of insects, birds, and bats evolved independently but carry out similar functions. This is an example of
A. analogous structures.
B. embryonic structures.
C. vestigial structures.
D. homologous structures.
Answer:
79
Explanation:79
if you explain9
Answer:
1. B
2.B
3.B
4.C
5.C
6.C
7.A
Explanation:
B. Bacteria can exchange genes for resistance to antibiotics in this way. Bacteria can take up genetic material from other bacteria or the environment during a process called transformation. This is relevant to humans because we can modify bacterial ADN with a gene of our choice and due to this transformation process, other bacteria can take up this modified ADN. B. All animals are heterotrophs. This means we can not produce food for ourselves inside our bodies. Instead, we have to consume it from another source in nature, for example, animal meat, fruits or vegetables.B. Species have specific adaptations to their local environment. In Darwin's finches for example, he found out that very similar birds had different peaks and head shape. He wanted to find out why they were so different yet so similar. He found out that depending on the food source available on the environment, the birds had a particular shape of peaks and head so they can feed properly.This adaptations and changes allow the birds to survive in a particular local environment.C. Mutualistic relationship. A mutualistic relationship is a biological interaction in which both organisms benefit. In this particular case, the Dinoflagellates provides energy to the coral and the coral protects the dinoflagellates against predators. This question is the same as the 4th one.C. recessive. The recessive hypothesis exposes that viruses were intracellular parasites that lost the required genes for replication and maintenance. So, they depend on host cells and their replication genes and processes to live.A. Analogous structure. An analogous structure is a trait that has a similar role, but whose origin is different. In this particular case, the insects, birds, and bats have different origins and ancestors but they all evolve wings to fly.Approximately what percentage of Earth’s water is fresh water? a. 97 percent b. 71 percent c. 30 percent d. 3 percent
Answer:
d. 3%
Explanation:
Answer:
d
Explanation:
the right answer comrades