(a) Describe why DNA replication is said to be a semiconservative process. Explain how random mutations such as those in pathogens with a mutator phenotype may arise in the DNA of an organism.
Answers
Explanation:
yan po sana makatulong po
sainyo
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As surface water in a lake cools from 4 °C to 0 °C, the water expands and becomes less dense. Why is this change in the water beneficial to the organisms living in the lake? As the water cools to freezing, spaces form between water molecules, providing microhabitats for small organisms. Frozen surface water insulates the water below it, maintaining a habitat where organisms can overwinter. Cooler water is less viscous than warmer water, making it easier for organisms to move through the water. Less dense water holds more dissolved compounds, keeping water from freezing so organisms survive winter.
Answers
Answer:
As the water cools to freezing, spaces form between water molecules, providing microhabitats for small organisms.
Explanation:
This change in the water is beneficial to the organisms living in the lake because the water which freezes formed spaces between water molecules, that providing microhabitats for small organisms. The cold temperature causes formation of ice crystals on the surface of water which work as an insulator whereas the lower part of the water remain warm and the organisms can survive in that environment.
Can someone help me?
Answers
Answer:
1. lytic/losigenic cycle
2. Restriction enzymes (breaks) and DNA ligase (joins)
3.mitosis (creation of twin daughter cells)
4. mitosis had helped humans with cell growth and repais (and keeps a steady supply of new cells)
Explanation:
it first goes through the lytic cycle where one bacterium inserts it's own dna into a host (human cell) and into the human DNA and it starts multiplying inside human cells in the lysogenic cycle
Consider this plant cell. The organelles in a plant cell are labeled. Part G is the middle layer of the cell. Which organelle is labeled G?
Answers
Answer:
Hi. You didn't show the picture that shows organelle G, but since you showed that organelle is the middle layer of the cell, we can say that it is the plasma membrane.
Explanation:
In general, we can state that the plant cell has three layers, the cell wall, the plasma membrane and the cytoplasm. The cytoplasm is the inner layer, where most of the organelles and the cell nucleus are located. Above the cytoplasm is the plasma membrane, which is semi-permeable and promotes the regulation of the entry and exit of substances from within the cell. Above this membrane is the cell wall, which is an impermeable structure that protects the cell and promotes its rigidity. In this case, we can consider that the middle layer of the cell is the plasma membrane.
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Which choice BEST explains why each island in the Galapagos has unique kinds of iguanas?
A. Iguanas prefer a marine environment.
O B. Some iguanas are better swimmers than others.
O C. The species arrived on the islands in different ways.
OD. The species adapted to each island's unique habitat.
Answers
The statement that explains each island in the Galapagos has unique kinds of iguanas is that the species adapted to each island's unique habitat. The correct option is D.
What is adaptation?Adaptation is defined in biology as a heritable behavioral, morphological, or physiological trait that has evolved through natural selection and maintains or increases an organism's fitness under a given set of environmental conditions.
To survive, all organisms must adapt to their surroundings. This entails adapting to the climatic conditions of the ecosystem, predators, and other species that compete for the same food and space.
The marine iguana is the only lizard in the world that can live and forage at sea, and it is only found in the Galapagos Islands.
There are eleven very similar subspecies found on various islands, with Isabela and Fernandina having the most. The species adapted to the distinct habitats of each island.
Thus, the correct option is D.
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1) What is the term for the product that results from hydrocarbons that react with
other chemicals and sunlight?
photochemical smog
gaseous emissions
particulate matter
carbon monoxide
2) What is the colorless , oder less gas that binds red blood cells causing the body not to get the oxygen it needs?
hydrocarbons
carbon monoxide
photochemical smog
gaseous emissions
3) which of the following are ways that pollution is be controlled? (Choose all that apply)
Automobiles have been built to release less pollutants in the air
Industrial factories have been closed down
residential properties must use solar energy to power homes
clean air acts have been established that reduce the amount of poullutants released from the industrial processes.
Answers
Answer:
photochemical smog
2).carbon monoxide
3).clean air acts have been established Reduce the amount of pollutants released from the industrial process
Explanation:
Photochemical smog is used for the product that results from hydrocarbons that react with other chemicals and sunlight.
What do you mean by photochemical smog?Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.
Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. Nitrogen oxides come from car exhaust, coal power plants, and factory emissions.
Photochemical smog can have a tremendous impact on humans, animals, plants, and materials. The harmful substance can hinder photosynthesis, thus inhibiting plant growth.
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Identifying an individual's genetically influenced health risks could increase their potential to achieve optimal health.
Answers
Answer:
Yes.
Explanation:
Yes, Identifying an individual's genetically influenced health risks could increase their potential to achieve optimal health because necessary steps can be taken in order to prevent the disease from more spreading and cause damaged to the body. Identification of genetical disease can be prevented to cause damage if the factors that triggers the disease can be avoided so we can conclude that identification of genetically influenced health risks can increase the chances of getting good health.
Answer:
true
Explanation:
One of the major function of the skin is the production of Vitamin D
True
False
Answers
Answer:
one of the major function of the skin is a production of vitamin d false.
what is kranz anatomy in biology ?
Answers
Answer:
This is what I found. So if you use this please reword it as your own.
Explanation:
Have a great summer
The microscopes we use today are far more complex than those first microscopes like the one used in the 1600s by Anton van
Leeuwenhoek. Despite the limitations of his simple microscope, van Leeuwenhoek observed some cells he termed
"animalcules." Robert Hooke then coined the term "cell" for the box-like structures he observed when viewing cork tissue
through a lens. Later advances in lenses, microscope construction, and staining techniques enabled other scientists to see
some components inside cells. Just as the microscope has been a work in progress with advances that have led to our current
technology, so the cell theory changed as new discoveries changed the understanding of cells.
Which of these contributed to the cell theory? Select ALL that apply.
A)
Robert Brown discovered the nucleus of plant cells.
B)
Matthias Schleiden discovered that plants are made of cells.
o)
Rudolf Virchow proved that cells come from preexisting cells.
D)
Theodor Schwann discovered that animals are composed of cells.
E)
Karl Rudolphi conducted experiments that proved cells had their own cell
walls.
Answers
The microscopes we use today are far more complex than those first microscopes like the one used in the 1600s by Anton van Leeuwenhoek. Robert Brown discovered the nucleus of plant cells, and Karl Rudolphi conducted experiments that proved cells had their own cell walls.
What is microscope?
The instrument that is used to observe tiny particles as well as objects or cell of the body has been known as microscope. One lens in the microscope has been used to magnify the image at least once. The main function of the lens has to bend the light in the direction of the eye and forms the larger image of the object.
There are several types of microscope and these are electron microscope,scanning probe microscope, stereomicroscope, simple microscope, and light microscope.The main function of the lens has to bend the light in the direction of eye and forms the larger image of the object.
Each microscope have different function and ability to observe the object. As we know that the size of the cell has very small and it has impossible to observe it without microscope. So, microscope helps to observe the interior part of the cell and it will help in the study of different part of cell.
Therefore, The microscopes we use today are far more complex than those first microscopes like the one used in the 1600s by Anton van Leeuwenhoek.
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What is fracking???????????
Answers
Reproduction for dolphins and badgers and people is more complicated because
A. we have to apply for a license before we can reproduce
B. have to find a partner
C. go through the cellular process of MITOSIS to produce sex cells.
Answers
Answer:
B. have to find a partner
Explanation:
When two badgers get together and fall in love, a sperm cell from the father which contains a copy of half of his DNA, only half, combines with the egg cell of the mother, which contains half a copy of her DNA. The result is a brand new cell with all the information to divide and grow up into a brand new badger. The new child matures to be similar to our parents, but also unique, because she developed some traits from her mother’s DNA, and some from her father. Her new combination of traits can be passed on to her children, and again.
To determine the density of a rabbit population, one would need to know the number of rabbits and __________. View Available Hint(s) To determine the density of a rabbit population, one would need to know the number of rabbits and __________. their pattern of dispersion the size of the region in which they live the factors that limit population growth for that rabbit population the growth rate of the population the birth rate
Answers
Answer:
The growth rate.
Explanation:
To determine the density of a rabbit population, one would need to know the number of rabbits and the growth rate of rabbit's population because both factors allow us to determined the population of rabbit in a specific region. If we know the existing population of rabbits in a particular area as well as the growth rate at which the rabbit population increases so we can find out the density of rabbit population in a specific time period.
Dynein feet Group of answer choices are found on microtubules in cilia and flagella and cause movement by grabbing and pulling at adjacent microtubule doublets. are knobs of carbohydrate that are essential to the movement of cilia and flagella. are present in cilia but not in flagella. are the anchoring proteins in basal bodies.
Answers
Answer:
The correct answer is - are found on microtubules in cilia and flagella and cause movement by grabbing and pulling at adjacent microtubule doublets.
Explanation:
Dynein feet or arm is made up of dyneins a family of cytoskeletal motor proteins that present on microtubules in flagella or cilia or both and drives the beating motion of cilia and flagella.
These form the rows of arms or feet inside and outside, associated with the doublet microtubules of motile cilia that produce microtubule sliding to move along. It gets its energy through ATP hydrolysis.
who constructed the periodic table
Answers
Answer:
well the modern day periodic table was created by Henry Moseley
Dmitri Mendeleev constructed the periodic table .
hope it is helpful to you
Which countries have the largest carbon footprints in the Oceanic, Asian, European, Caribbean/Central American, South American, North American regions? Include reasons why. (Please don't answer if you don't know)
Answers
Answer:
Asia - China (followed by India)
north America - USA (closely followed by canada)
european - Russia ( followed by Germany)
oceanic - Australia
For each of the following elements, write the chemical symbol, the atomic number, the atomic mass, the number of protons, and the number of neutrons. Don’t forget to round the atomic mass to the nearest whole number.
Plutonium
Chromium
Neon
Gold
Radon
Answers
Answer:
neon bc neon is it PEriot and don't forget to round the atomic mass to the nearest whole number in assuming this is one ur assignments
Answer:
here are your answers :)
Explanation:
What bodies of water may be cold
Answers
Answer:
Flowing rivers and streams,Spring-fed bodies of water,Most open water except in tropical regions,
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Describe the course of the water cycle which formed in Biosphere 2
Answers
The sun warms the ocean surface and other surface water, causing liquid water to evaporate and ice to sublime. It turn directly from a solid to a gas. These sun driven processes move water into the atmosphere in the form of water vapor.
The sun warms the ocean surface and other surface water, causing liquid water to evaporate and ice to sublime. It turn directly from a solid to a gas.
These sun driven processes move water into the atmosphere in the form of water vapor.
Describe two ways that water moves through Earth’s biosphere in the water cycle?Some ways that water moves through the Earth's biosphere in the water cycle evaporation, combustion, decay, and respiration.
Thus, These sun driven processes move water into the atmosphere in the form of water vapor.
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Only forager bees leave the nest for their jobs
A
True
B
False
Answers
What are chromosomes ? explain
Answers
Explanation:
sana po makatulong sainyo
What are chromosomes?
Answer:Chromosomes are thread-like structures found within the nucleus of both animal and plant cells. Protein and a single molecule of deoxyribonucleic acid make up each chromosome (DNA). DNA is passed along from parents to children and carries the precise instructions that distinguish each living thing.
The word "chromosome" is derived from the Greek terms "chroma" and "body" (soma).
--------------------------hope it helps...have a great day!!Three reasons that might have influenced authorities in the department of agriculture to use a higher percentage of Nguni on the communal and emerging sector of livestock farmers in South Africa in 2003
Answers
Answer:
Tolerance to heat, light and parasite.
Explanation:
Characteristics of tolerance to heat, light and parasite are the three reasons that might use a higher percentage of Nguni on the sector of livestock farmers in South Africa in 2003. The temperature of South Africa is extremely high which can be tolerated by the Nguni cattle due to its good characteristics. The Nguni cattle can bear extreme temperature, high intensity of light and resistance to parasites make it best suited for that environment.
Biological knowledge is important in all of the following except
Answers
Answer:
both a body of knowledge and an intellectual activity encompassing observation, description experimentation, and explanation of natural phenomenon.
Explanation:
4. Which makes up most of Earth's surface? (1) the
atmosphere (2) the lithosphere (3) the hydrosphere
Option 1
Option 2
Option 3
Answers
Answer:
3) hydrosphere
Explanation:
About 71 percent of the Earth's surface is water
Which of these groups is the smallest level of classification?
O A. Class
O B. Order
O C. Family
O D. Phylum
Answers
Answer:
family
Explanation:
Explanation
2. Define biomagnfication.
Answers
Answer:
It is the gradual accumulation of substances
what is the vegetative body of a rhizopus?
Answers
Answer:
Rhizopus fungi are characterized by a body of branching mycelia composed of three types of hyphae: stolons, rhizoids, and usually unbranching sporangiophores. The black sporangia at the tips of the sporangiophores are rounded and produce numerous nonmotile multinucleate spores for asexual reproduction.
Identify the steps of the lytic cycle.
The pieces made in replication are
assembled to complete the new virus
particles
The new viral nucleic acid and viral
proteins are replicated
The virus attaches to the host cell.
The original virus releases a protein that
causes the cell wall to burst (lysis), killing
the cell and releasing viruses.
The host's DNA is disassembled and the
virus takes over the cell's metabolic
activity
Answers
All the given steps are of lytic cycle.
Lytic cycle is used by a bacteriophage to reproduce inside a bacteria.Bacteriophage are the viruses.What is lytic cycle?
The lytic cycle is production of new phage progeny and death of the host bacterial cell, this is a multistep process involving precise coordination of gene transcription and physical processes.
The six stages are:
Attachment.Penetration. Transcription. Biosynthesis. Maturation. Lysis.To know more about lytic cycle here
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Answer: c b e d a
Explanation:
Which of these is an example of nonpoint-source pollution?
A. A textile factory
B. A city's traffic
C. An oil refinery
O D. A car repair shop
Answers
Answer:
I hope that the answer should be C. An oil refinery
Answer:
The answer is indeed C) An oil refinery
Explanation:
In this process, a vesicle moves large substances, such as cells' waste products or specific products, out of the cell. What process does this describe? pinocytosis exocytosis endocytosis phagocytosis
Answers
Answer:
exocytosis is the process described above
Which is one way that analyzing ice benefits scientists who study ancient climates?
Scientists can analyze frozen volcanic dust to help predict eruptions.
Scientists can study the layers of ice cores to gather information about past atmospheric composition.
Scientists can use pollen grains in ice to make inferences about the climate area.
Scientists can study tree rings in ice to learn more about past climates.
Answers
Answer:
B
Explanation:
edge 2021
Analyzing ice benefits scientists who study ancient climates scientists as they can study the layers of ice cores to gather information about past atmospheric composition.
What are benefits of studying ice?Ice refers to frozen water which is found on ocean or on land.
Ice helps to preserve ancient life forms.
The study of ice and ice structures helps scientists to discover ancient life formations as well as the composition of the ancient atmosphere.
Therefore, analyzing ice benefits scientists who study ancient climates Scientists as they can study the layers of ice cores to gather information about past atmospheric composition.
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