Answer:
The correct answer is - The membrane depolarization is not amplified along the axon.
Explanation:
Tetrodotoxin, a neurotoxin present in the liver and gonads of Marine organisms. it can inhibit the soidum channels which means it blocks the entering of the sodium in the cells or neurons if consumed it and it can lead to neurological and gastrointestinal disorders.
These toxins block the signals to move along the nerves to muscles In absence of sodium action potential cannot be sent along the axon by blocking the sodium channels. This results in weakening and paralysis.
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
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.
4. Which makes up most of Earth's surface? (1) the
atmosphere (2) the lithosphere (3) the hydrosphere
Option 1
Option 2
Option 3
Answer:
3) hydrosphere
Explanation:
About 71 percent of the Earth's surface is water
what is the vegetative body of a rhizopus?
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.
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.
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.
One of the major function of the skin is the production of Vitamin D
True
False
Answer:
one of the major function of the skin is a production of vitamin d false.
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.
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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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.
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.
Biological knowledge is important in all of the following except
Answer:
both a body of knowledge and an intellectual activity encompassing observation, description experimentation, and explanation of natural phenomenon.
Explanation:
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
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:
2. Define biomagnfication.
Answer:
It is the gradual accumulation of substances
What are monoclonal antibodies and how do they work?
Answer:
Monoclonal antibodies can treat cancer as well as other illness such as the coronavirus by mimicking the body's immune system. They recognize and target specific proteins on cells. Some on cancer cells by basically blocking signals that tell cancer cells to divide.
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)
Answer:
Asia - China (followed by India)
north America - USA (closely followed by canada)
european - Russia ( followed by Germany)
oceanic - Australia
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?
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.
Identifying an individual's genetically influenced health risks could increase their potential to achieve optimal health.
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:
This equation is unbalanced. Which of the following is the correct balanced equation for this reaction?
Answer:
There is no any unbalanced equation
what is kranz anatomy in biology ?
Answer:
This is what I found. So if you use this please reword it as your own.
Explanation:
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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.
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.
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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help pls will give brainliest
Answer:
6 months
Explanation:
1 years is full round 6 months is half
Answer:
6 months
Explanation:
Earth orbits the Sun at an average distance of 149.60 million km (92.96 million mi), and one complete orbit takes 365.256 days (1 sidereal year), during which time Earth has traveled 940 million km (584 million mi).
Where are temperatures rising fastest due to global warming?
a.
At the equator
c.
In the Pacific ocean
b.
In the arctic
d.
In the Amazon basin
Please select the best answer from the choices provided
A
B
C
in the arctic, global warming is a massive issue that is melting the ice caps.
Magnetic __?_______ don't exist.
Answer:
Those materials which are not attracted by a magnet are called non- magnetic materials. All the substances other than iron, nickel, and Cobalt are non-magnetic substances for example plastic, rubber, water, etc are nonmagnetic materials. Non-magnetic substances cannot be magnetized.
Which of these groups is the smallest level of classification?
O A. Class
O B. Order
O C. Family
O D. Phylum
Answer:
family
Explanation:
Fill in the blank to complete each statement.
The land that supplies water to a river system is called a___
Pollution from a single, identifiable source is called____
source pollution
Pollution that is difficult to link to a particular origin is called______ source pollution
Answer:
other guy is right
Explanation:
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
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:
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.
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.
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
Answer:
I hope that the answer should be C. An oil refinery
Answer:
The answer is indeed C) An oil refinery
Explanation:
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
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.
What are chromosomes ? explain
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).
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Describe the course of the water cycle which formed in Biosphere 2
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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Can someone help me?
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