Answer:
latent variations,
sterility
structural differences
reproductive isolation
DNA isolated from the bacterial virus M13 contains 25% A, 33% T, 22% C, and 20% G. Do these results strike you as peculiar? Why or why not? How might you explain these values?
Answer:
Yes, Adenine and thymine have to equal each other. Guanine and cytosine as well since they are to pair with each other. With these numbers, we can suggest that the virus is not double-stranded and is a single-stranded DNA organism.
Explanation:
rate if this helps! :)
Which of the following takes place during fertilization in animals and most flowering plants?
A. production of sperm and egg
B. Joining of sperm and egg
C. Division of egg
Answer:
A is d answer
Explanation:
production of egg
In 1987, the population of Black Footed Ferrets in the world was 18 individuals. By 1989 through captive breeding, the number rose to 120. What percent change is this
In 1987, the population of Black Footed Ferrets in the world was 18 individuals. By 1989 through captive breeding, the number rose to 120. percent change in this [(120-18)/2]/18.
Why did black-footed ferrets become extinct?
There may have been as numerous as 5 million black-footed ferrets in the United States in the earlier 1900s. while by the 1970s they were stressed to be expired as a result of habitat fragmentation and general prairie dog drops due to: Being slowly exterminated.
Thus, the number rose to 120. percent change in this [(120-18)/2]/18.
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I am gonna ask this question again just want more advise
Answer:
tell him face to face rather than someone's help
A resource that is changed by this pollution is
Answer:
Water
Explanation:
water is polluted by pollution
How is food moved through the
esophagus and small intestine?
A. The process of peristalsis which is small
muscle contractions squeeze food down the tube.
B. Food is moved by the pull of gravity through
the tubes in the body.
C. The food gets pushed through, as you eat
more it pushes the other food along.
D. Peristalsis is when long muscles the size of
the organ open the tube up for food to slide
through
nododemu of Science. All Rights Reserund
Answer:
A
Explanation:
your stomach moves the food through the intestines by contracting itself and pushing the food through your stomach
The primary reservoir for calcium that is released during excitation-contraction coupling in a skeletal muscle fiber is the
The primary reservoir for calcium that is released during excitation-contraction coupling in a skeletal muscle fiber is sarcoplasmic reticulum.
What is the function of sarcoplasmic reticulum?The sarcoplasmic reticulum is responsible for storeing calcium ions which it releases when a muscle cell is stimulated.
So we can conclude that the primary reservoir for calcium that is released during excitation-contraction coupling in a skeletal muscle fiber is sarcoplasmic reticulum.
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Species found in only one place on earth are called ________ species.
Answer:
endemic species
Explanation:
Species found in only one place on earth are called endemic species
Can some help me please I can’t figure this out
The model shows a carbon cycle in an ecosystem.
Which process decreases the amount of atmospheric carbon dioxide?
A animal respiration
B factory emissions
C photosynthesis
D plant respiration
Answer:
C. Photosynthesis
Explanation:
A. Animal Respiration increases the ammount of carbon dioxide because the animals are exhaling the carbon dioxide.
B. Factory Emissions release carbon dioxide because of the fossil fuels that are being burned.
D. Plant respiration increases the amount of carbon dioxide because, as much as they do take in carbon dioxide, they also release carbon dioxide.
C. Photosynthesis is the only available answer because the plants are turning the carbon dioxide into oxygen within the process.
Which item is made from nonrenewable resources? solar panels in a field. a ring with a blue gem. different types of vegetables. a field of wheat.
A nonrenewable resource is a raw substance that is not filled item is made from nonrenewable resources a ring with a blue gem.
What are 3 renewable and nonrenewable resource?Renewable help aids include timber, wind, and solar while nonrenewable resources include coal and natural gas.
Thus, option "B" is correct.
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Answer:
B - Gemstones
Explanation:
When the water turns yellow, which gas is most common?
carbon dioxide CO2
hope it helps...!!!
How would you describe water flow?
Answer:
it's just go like umm... like.... ahhh..... don't know how to say it but I really know believe me...
Answer:
Water flow is the motion of water moving on the surface of rocks, the ground, sometimes in air like a water fall its flowing all to the same place or going to other points of the world.
Explanation:
I heard it from my sink :D
Use the drop-down menus to complete the sentences about air pollution. the burning of causes dangerous gases to enter the atmosphere. heavy, dense fog caused by dangerous gases mixing in the atmosphere is called . occurs when dangerous gases mix in the atmosphere and fall back to the surface in liquid form.
Air pollution is caused the burning of fossil fuels, resulting in the formation of smog and acid rain.
What is air pollution?Air pollution is the release of harmful substances into the air which makes it unfit and unhealthy for breathing.
Substance which pollute the air are known as air pollutants.
The burning of fossil fuels causes dangerous gases to enter the atmosphere. Heavy, dense fog caused by dangerous gases mixing in the atmosphere is called smog. Acid rain occurs when dangerous gases mix in the atmosphere and fall back to the surface in liquid form.
Therefore, air pollution is caused by releasing pollutants air.
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Answer:
yee
Explanation:
The burning of ✔ fossil fuels causes dangerous gases to enter the atmosphere. Heavy, dense fog caused by dangerous gases mixing in the atmosphere is called ✔ smog
✔ Acid rain occurs when dangerous gases mix in the atmosphere and fall back to the surface in liquid form.
During the process of protein synthesis, which could cause the wrong amino acids to bond together and form an incorrect protein?
Answer:
missense mutation
Explanation:
What happens when the wrong amino acid is placed during protein synthesis? A missense mutation is a mistake in the DNA which results in the wrong amino acid being incorporated into a protein because of change, that single DNA sequence change, results in a different amino acid codon which the ribosome recognizes.
HELP PLEASE
These particles in the bloodstream interact with proteins to become a sticky web of fibers that stick together across the opening in a blood vessel to close the wound.
A- leukocytes
B- thrombocytes
C- erythrocytes
D- protocytes
Answer:
B thrombocytes
Explanation:
Thrombocytes are something that forms in your bone marrow. Also known as platelets, these will clot up to prevent bleeding.
Genes are the only factor affecting whether or not an individual will contract a disease. please select the best answer from the choices provided t f
It is false statement that; "Genes are the only factor affecting whether or not an individual will contract a disease. "
What is gene?Genes are the units of inheritance located on the chromosomes. The total number of genes that an individual recieves from its parents is called the genotype of the individual.
While many illnesses may result from the genotypemof an individual, it is false statement that; "Genes are the only factor affecting whether or not an individual will contract a disease. "
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Answer:
its false
Explanation:
5. Which process releases nitrogen into the air?
a. breaking down waste
b. fixing nitrogen
c. using fertilizer
d. making sugar
ANSWER IS B
CORRECT ME IF IM WRONG :D
What is Primary Succession?
Describe pioneer species in your own words.
What is the meaning of Climax Community?
Define Secondary Succession?
What is the difference between primary and secondary succession?
Answer:
Primary succession is the beginning step of ecological succession after an extreme , which usually occurs in an environment devoid of vegetation.
In second at succession, an area that was previously occupied by living things is disturbed,then re colonized following the disturbance.
climax community is a historic term for a community of plants, animals, and fungi which, through the process of ecological succession in the development of vegetation in an area over time, have reached a steady state.
Primary succession is the beginning step of ecological succession after an extreme , which usually occurs in an environment devoid of vegetation.for example: the formation of new ecosystem after a volcano, glacier outburst etc.In second at succession, an area that was previously occupied by living things is disturbed,then re colonized following the disturbance.for example: succession after forest fire,flood etc.What is currently being done to reduce PFAS in food packaging.
anyone know what this is?? im stuck:(
QUESTION 20 The process of producing a mature spermatozoon through mitosis and meiosis is called ________. spermatogenesis HoLEP BPH ejaculation
The process of producing a mature spermatozoon through mitosis and meiosis is called spermatogenesis
According to this periodic table, how many differents types of atoms are there? Are they all the same size?
Answer:
Currently there are 118, it might be different from your table though. And no, atoms are not the same size.
Explanation:
No atoms are not of the same size unless they are the same element. Atoms increase in size as you go up on the Periodic Table because of the number of protons and neutrons.
In sp²-hybridized orbitals, how many p-orbitals remain to form multiple bonds?.
Answer:
1 remains
Explanation:
In sp²-hybridized orbitals only one p-orbitals remain to form multiple bonds.
What is Hybridization?Hybridization is a mixing of atomic orbitals which are of different shapes and have nearly same energy with give rise to same number of hybrid orbitals of same shape, equal energy and orientation so that there is minimum repulsion between these hybridize orbitals.
This is useful to explain the covalent bonds in organic molecules.
There are 3 types of hybridization which are based on the mixing of the orbitals
1. [tex]SP^{3}[/tex] hybridization- In this type of hybridization one s orbital and 3p orbital which are of same shell of atom mix together to form new orbital.
2. [tex]SP^{2}[/tex] hybridization - In this type of hybridization one s orbital and 2p orbitals mix together to form equivalent orbitals.
3. [tex]SP[/tex] hybridization - When 1 s and 1 p orbital goes in the process and mix together to form new orbital. The molecules who possess sp hybridization have linear shift with an angle of 180 degree.
Thus, in sp²-hybridized orbitals only one p-orbitals remain to form multiple bonds.
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A leaf from a deciduous forest that falls into a large stream and is consumed by insects would be a source of _______ energy for the stream ecosystem
A leaf from a deciduous forest that falls into a large stream and is consumed by insects would be a source of primary energy for the stream ecosystem
Flow of energy in the food chainMost of the energy that enters an ecosystem comes from solar radiation. The producing organisms that carry out photosynthesis absorb solar energy and fix it in chemical energy. When consumers feed on producers, part of that energy goes to these organisms, which, by serving as food for other living beings, also pass on part of their energy to them. This, therefore, flows, in a unidirectional direction, passing from a lower level to a higher one.
With this information, we can conclude that a leaf from a deciduous forest that falls into a large stream and is consumed by insects would be a source of primary energy for the stream ecosystem
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Which macromolecule is involved in how hemophilia is passed from parents to their children?
carbohydrate
lipid
nucleic acid
protein
Answer:
nucleic acid
Explanation:
nucleic acid is involved in how hemophilia is passed from parents to their children.
HELP ASAP!!!!
Drag the tiles to the boxes to form correct pairs.
Match each hypothesis for how the Moon formed with the statement that best describes it.
Answer:
Giant Impact Theory: The Moon was formed from the collision between Earth and another Mars sized body
Colliding planetesimal Hypothesis: The Moon was formed from collisions and combining of planetesimals
Capture Hypothesis: The Moon was locked into orbit by Earth's gravity as it was passing by it
Accretion Hypothesis: The Moon was formed from the same cloud of material as Earth
Explanation:
what are 2 reasons of why birds die out on the Easter island?
Answer:
How did the extinction of the birds affect Easter Island?
Consequently, the consumption of land birds, migratory birds, and mollusks increased. Soon land birds went extinct and migratory bird numbers were severely reduced, thus spelling an end for Easter Island's forests.
Have a good day!
~Jack!~
Answer:
They die because there’s lose of forest there animal populations is decreased and there’s lose of seeds for them to eat.
Explanation:
Hope this helps :)
Addison
How does the extraction of energy resources change their distributions?
Answer:
Most natural resources, including fossil fuels, are not distributed evenly around the Earth. Deposits of fossil fuels depend on the climate and organisms that lived in that region millions of years ago, and the geological processes that have since taken place.
Explain how an adaptation can enable an organism to survive a long-term environmental change. Describe and example to support your answer
Answer:
survival of the fittest
Some die, some survive. Those that survive to reproduce pass along their genes. Some survive by good luck. Others survive because they happen to have some quality that gives them a better chance to tolerate the environmental changes. Assuming those qualities are heritable, they’ll become more common in the genes of the surviving population. Eventually they’ll predominate. The population will have adapted to the changes.
With the exception of very primitive organisms, living animals have various senses including those familiar to us as sight, sound, touch, taste, and smell. Certain organisms have senses that we do not share. For instance, the class of snakes we call “pit vipers” have a specific organ that senses heat from prey animals, even in total darkness.
Bats use echolocation, bouncing high-pitched sound waves off of obstacles and prey alike. So do dolphins.
Many insects have the ability to smell only a few molecules of pheromones from potential mate
I took the question differently than everyone else, but it sounded to me like the OP was asking for examples of HOW organisms adapt, not two organisms that adapted.
Adaptation often begins with environmental monitoring systems. Lets say antibiotics are taken by a patient and a small amount gets in the area of a pathogen who is testing its environment. The pathogen detects the threat and begins to construct a genomic edit that can counter it. Unfortunately for us, cells are still more skilled with biochemistry than humans.
If you mean like to adapt in an instant, we humans release adrenaline to overcome stress and it actually makes us more prone to overcome stress. Another example its σ32 is the heat shock sigma factor in Escherichia coli, which it helps the bacteria to survive in a “heat shock”.
When we look at evolution, we often look at bacteria or animals that aren't really related to us, like the dinosaurs and how they evolved into avian animals.
There are two examples in human history that are great for this question.
Humans
Yup. People have made adaptations to the environment. Well, at least the environment that we create for ourselves.
Milk contains lactose, which requires a special enzyme to break down. After a few months of age, babies lose this enzyme and become lactose intolerant. So why can we drink milk now?
That's because in our past, farmers began to drink milk from other an
(1) Antibiotic resistance
(2) Mitochondria losing unnecessary genes for symbiosis w/ eukaryotes
this is a miracle of evolution as we have read in our childhood about camels and about xerophytes(cactus) they got adapted to their environment but according to Darwin there is survival of the fittest which means there may be various types of a single species now under a harsh environment it may be that not all types of a single specie lives so they perish