Answer:
Mean is 28.3
Mode is 7
Explanation:
Which of the following is not true about the matter in ecosystems?
A) matter is recycled over and over in ecosystems
B) Biogeochemical cycles transfer or use nutrients in ecosystems
C) matter in an ecosystem flows in one direction and is never reused
Answer:
c) matter in an ecosystem flows in one direction and is never reused.
Explanation:
A is true
What causes changes in the sizes, shapes, and positions of Earth's continents and oceans?
A.
very strong ocean currents
B.
global wind belts
C.
continental drift
D.
tectonic plate motion
Answer:
D
Explanation:
I got it right
Tectonic plate motion causes changes in the sizes, shapes, and the positions of the Earth's continents and oceans. Thus, the correct option is D.
What is Tectonic plate motion?Tectonic plates are the gigantic pieces of the Earth's crust and the uppermost mantle of the Earth. These layers of the earth are made up of oceanic crust and continental crust. Earthquakes mainly occurs around the mid-ocean ridges and the large faults which mark the edges of the plates in the Earth.
The heat from radioactive processes within the planet's interior causes these tectonic plates to move, which sometimes results towards and sometimes away from each other. This movement of the tectonic plates is called as plate motion or tectonic shift.
Therefore, the correct option is D.
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a. Which form of nitrogen in the soil is NOT usable by organisms?
b. Why is this form not usable? Be specific.
c. How can this form be made usable to organisms?
Answer:
A)Fixation. Nitrogen in its gaseous form (N2) can't be used by most living things
B) it can not be used because it most be converted or, ’fixed’ to a more useable form. To do this it goes through a process called fixation.fixation is the change in a gene pool from a situation where there exists at least two variants of a particular gene (allele) in a given population to a situation where only one of the alleles remains.
C) This form can be made more usable if it’s converted. It has to go through the process of fixation so the gene pool changes.
Explanation:
Nitrogen in the form of gas i.e., nitrogen molecule (N₂) in soil is not usable by the plants. This form cannot be used by the plants as plants do not have any enzyme which can use this molecule.
What is Nitrogen fixation?Nitrogen fixation is any natural or industrial process that causes free nitrogen (N₂), inert gas in air, to combine chemically with other reactive elements to form more-reactive nitrogen compounds such as ammonia, nitrates, or nitrites that can be used by the plants.
Nitrogen in its gaseous form (N₂) cannot be used by most of the living things. Plants do not have the required enzymes to use of atmospheric nitrogen. This molecule has to be converted or 'fixed' to a more usable form through a process called fixation. This requires specific enzymes and conditions.
Nitrogen molecule converted into nitrate, nitrite, and ammonia by the plants through the process of nitrogen fixation are then used by the plants and other living organisms.
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What is the graphical representation of age structure known as
Answer:
The age structure is a population pyramid which depicts the population of a country and what is the age of the average population of a country.It can be depicted with the help of pyramid. A population pyramid, also called an age pyramid or age picture diagram, is a graphical illustration that shows the distribution of various age groups in a population, which forms the shape of a pyramid when the population is growing.
hope this helped x
Explanation:
What are two factors that determine an object's thermal energy?
Answer: MASS AND TEMPATURE
An object's thermal energy is dependent upon its temperature and mass. The higher the temperature of a given quantity of a substance, more is its thermal energy. Similarly, for the same temperature, higher mass of a substance will contain more thermal energy.
Explanation:
Two factors that determine an object's thermal energy are Mass and temperature.
Mass:
The mass of an object influences its thermal energy. The greater the mass of an object, the more thermal energy it possesses. This is because a larger mass contains a larger number of particles that are in motion, contributing to the overall thermal energy of the object.Temperature:
The temperature of an object is a measure of the average kinetic energy of its particles. The higher the temperature, the greater the average kinetic energy and thus the greater the thermal energy of the object. Temperature determines the intensity of the thermal energy and how vigorously the particles are moving.Thus, mass and temperature, play significant roles in determining the thermal energy of an object.
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Centromers split during ...
A. Prophase
B.metaphase
C. Anaphase
D. Telophase
Answer:
C
Explanation:
Meiosis: The centromeres do not separate during anaphase I, but during anaphase II.
Mitosis: The centromeres split during anaphase.
Answer: prophase II
Explanation:
Just did the assignment
What is non-specific immunity to disease? *
(1 Point)
Production of cloned plasma cells
var
Production of antibodies by lymphocytes
Endocytosis of pathogens by white blood cells
Blocking prokaryotic metabolism with antibiotics
Answer:
Production of antibodies by lymphocytes
Explanation:
Non specific immunity to disease refers to those immune cells that protect the body from bacterias, viruses, and pathogens that is they respond to more than one antigen compared to specific immunity to disease.
Production of antibodies by lymphocytes is an example of nonspecific immunity to disease. This is because antibodies produce help fights bacteria, pathogens and viruses. It is non specific.
I need help please and thank you
You work for a zoo where you manage the breeding program for the cheetah. Your goal is to prevent inbreeding by obtaining mates from other zoos, making sure that your cats produce healthy offspring. In analyzing the genes of the cheetahs in all the zoo breeding programs, you notice very little variety of traits (alleles). Select all of the following conclusions which could be supported by your findings?
a. All of the zoo cheetahs come from just a few common ancestors.
b. The number of individual cheetahs currently in Zoos must be very low.
c. The variety of trats found in wild cheetahs is very narrow, possibly due to only a few of the animals surviving some event or series of events in thepast.
d. Even aner several generations, the baby cheetahs produced at your zoo wil show very ame geneto variaton.
Answer:
the answer is a
Explanation:
most cheetahs that are added to a zoo are from the same area
Following conclusions supports the findings:
a. All of the zoo cheetahs come from just a few common ancestors.
b. The number of individual cheetahs currently in Zoos must be very low.
c. The variety of traits found in wild cheetahs is very narrow, possibly due to only a few of the animals surviving some event or series of events in the past.
What are characteristics of cheetah?Cheetahs are large cats that are known for their speed and agility. They have a distinctive appearance, with a slender body, small head, and long legs. They have a yellow-tan coat with black spots, and a long, bushy tail. They have a high flexibility and a unique skeletal structure that allows them to run at high speeds of up to 75 mph.
They have a unique tear-strip pattern on the face which helps to protect the eyes from the sun and dust while running at high speeds. They are also known for their endurance, and are able to maintain high speeds for longer periods of time than other big cats. They are carnivorous animals and mainly hunt small mammals, birds, and reptiles. They are also solitary animals, only coming together during mating season.
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Why couldnt water vapor have come to the earth when it was created?
a. All the water vapor was directed to Mars.
b. The atoms forming water were too light to stay in the inner Solar System and were blown out by the solar winds.
c. Water wasn’t around at the time.
d. There was no hydrogen in the solar system at that time.
Answer: The answer is B
Explanation:
A is not practically possible as mars is such a great distance away
C water of course wasnt around in earth at the time but other planets did have water so this isnt an accurate answer
D cracks me up, Hydrogen was the first element in space after the Big Bang this is also an in accurate answer
Which statement best explains why the overall charge on an atom is zero?
The positive charge of the neutrons in the nucleus equals the negative charge in the electron cloud.
The positive charge of the protons in the nucleus equals the negative charge in the electron cloud.
The negative charge of the neutrons in the nucleus equals the positive charge in the electron cloud.
The negative charge of the protons in the nucleus equals the positive charge in the electron cloud.
Answer:
the answer is B) The positive charge of the protons in the nucleus equals the negative charge in the electron cloud.
Explanation: hope that helps <3
Which of the following is an example of a physical trait? A. nesting B. hair color C. burrowing D. cystic fibrosis
Answer:
B. hair color
Explanation:
A physical trait generally means something you can see with the naked eye and discern what it is. Hair color is a physical trait, because you can tell what the person's general hair color is just by looking at it.
~
Answer:
B) hair color
Explanation:
um a physical traits are features or characteristics about your body so I eliminated the answer choices that were not features about your body and that's how I got my answer
i'm bad at explaining
the big five does not include
Answer:
can you post a picture of the question
Explanation:
Answer:
What are the options?
Explanation:
The big five INCLUDES
Openness, conscientiousness, extraversion, agreeableness, and neuroticism
or OCEAN.
Have a good day and stay safe!
d. How is shadow form? Give example of shadows when the sun is behind, top and front of up. Draw and show.
Answer:
Shadow is formed when an opaque object blocks the rays of light.
When the son is at top the shadow is seen down and long
When the sun is behind the shadow is seen shorter in comparison
When the sun is at front of us the shadow is seen backup of us
Hope u have understood
Mark my answer as brainliest
I love you would you like to be my valentine
Answer:
Shadow is formed when an opaque object blocks the rays of light.
will get brainliest answer
14. A fox population eats rabbits that have a population cycle of about ten years. Which is a likely effect of the foxes preying on the rabbits?
A. The rabbits will change to a five-year population cycle.
B. The rabbits will change to a twelve-year population cycle.
C. The foxes will have a ten-year population cycle.
D. The foxes will have a five-year population cycle.
Answer:
C. ) The foxes will have a ten-year population cycle.
Explanation:
How has the Douglas-fir adapted to enable its survival in the taiga biome?
a. low growing
b. perennial
C.
waxy needles
d. survive on limited nutrients
Answer:
b. perennial
Explanation:
because the Douglas fir several years because of which the area remains covered with forest and survives and adapt itself to the Taiga biome
When the CAU anticodon of a tRNAMet was modified to UAC, the anticodon for tRNAVal, valine aminoacyl-tRNA synthetase, recognized the altered tRNAMet and added valine rather than methionine to it. When the converse modification was made, the altered tRNAValcontaining a CAU anticodon (rather than UAC) was recognized and activated by methionine aminoacyl-tRNA synthetase. What do these data suggest about the mechanism by which aminoacyl-tRNA synthetases recognize their cognate tRNAs
Answer:
With the information obtained, it can be deduced that the tRNA anticodon region is recognized by an aminoacyl-tRNA synthetase, however some of these enzymes may have different elements in their structure and which would be the majority and which may trigger a fundamental role in the aminoacyl-tRNA synthetase recognition
Scientists have recently discovered a new species that lives attached to the side of a tree. This organism
- is multicellular
- has vascular tissues
- has membrane bound organelles
The scientists put the organism in a sealed glass container filled with carbon dioxide and oxygen for several hours. Which of the following is evidence that this new species is an animal?
a
decrease in phosphate levels
b
decrease in nitrogen levels
c
increase in oxygen levels
d
increase in carbon dioxide levels
Answer:
D
Explanation:
Animals and plants preform a process known as cellular respiration.
This process is:
oxygen+glucose--> carbon dioxide+ water + ATP (energy)
If a plant was placed in this container with carbon dioxide and oxygen, it would preform cellular respiration, but it would also use another process called photosynthesis:
carbon dioxide+water+light energy-->oxygen+glucose
Since a plant performs both, the levels of carbon dioxide and oxygen wouldn't change a lot.
However, if this was an animal, the carbon dioxide levels would increase. An animal would inhale oxygen, use it in cellular respiration, and then exhale carbon dioxide as a waste product.
Therefore, the correct answer is D: increase in carbon dioxide levels.
Mitochondria are vital to cells by carrying out which of the following functions
Answer:
Cellular Respiration.
Explanation:
Mitchondria are cell organelles that are essential to cells due to them being the site of Cellular Respiration. This is how cells produce energy to function by the use of Oxygen and breaking down Glucose molecules.
If you see a diseased plant, it is most likely in the
stage of its life cycle.
O adult
death
growth
beginning
NEKOGU
NE HAUESTION
ASK FOR HELP
A plane that divides an animal into dorsal and ventral portions is _______________.
A) Sagittal
B) Midsagittal
C) Coronal
D) Transverse
Answer:
Coronal
Explanation:
A frontal plane (also called a coronal plane) separates the front (ventral) from the back (dorsal).
Sara read in a book that in 1800, the Italian physicist Alessandro Volta observed that two metals connected by a conducting liquid produced a continuous transfer of electrons. This phenomenon was different from the rapid static discharge observed by Benjamin Franklin.
Sara’s book was describing Volta’s observation of:
Answer:
the process described in the question, described by Alessandro Volta refers to superconductivity, in which two metals connected by a conductive liquid produce a continuous transfer of electrons, these metals are considered superconductors since they do not have electrical resistance and this is always maintained and when the temperature is adequate, different from terms such as the resistance that is the impediment to the flow passage, or to the electric static in which the energy accumulation is maintained without movement or transfer or the electric current that is the energy in the same metal.
Answer:
C) Electric current, which is the flow of electrons through a material.
Explanation:
Under what conditions can pieces of DNA be artificially combined?
Answer:
Combining pieces of DNA artificially is known as DNA cloning, the DNA formed is known as recombinant DNA.
Explanation:
The donor DNA that is to be combined is cut into fragments in specific sequences using restriction enzymes which are individually introduced to replicating DNA molecules such as bacterial plasmid known as vectors.
The process is Isolating -> Cloning -> Sequence DNA.
You need to refuel your PWC. When should you check for gas fumes?
Options are not provided in the question. The complete question is:
You need to refuel your PWC. When should you check for gas fumes?
A. before fueling
B. while fueling
C. after fueling and before starting the engine
D. after fueling and restarting the engine
Answer:
C. after fueling and before starting the engine
Explanation:
A personal watercraft (PWC) is popularly known as jet skis or water scooter which run over water as its name suggest and ride by a rider who either sits or stands on the PWC rather than sitting inside of.
PWC run on unleaded gasoline and premium gasoline. Gas fumes in PWC is required to check after fueling and before starting the engine because if the tank will overfilled, fuel can expand into the water or leakage can cause explosion as well. After fueling and just before staring the engine it is must to check for evidence of gas fumes and one is smelling gas fumes, the source need to repair immediately.
Hence, the correct option is C.
A population of western skinks, a type of lizard, lives in a grassland habitat along the base of a mountain range. The construction of a multi-lane highway will divide the habitat into two separate regions. How will the construction of the highway most likely affect the western skink population?
Answer:
The western skink population would be separated into two groups, and genetic diversity would decline in each group.
Explanation:
It can be explained with the help of a bottleneck effect due to which population size decreases suddenly due to events like a natural disaster, habitat destruction etc.
Which of the following is true about the genetic code?
Answer:
It is universal among all life on Earth.
Explanation:
Several different codons may encode the same amino acid is true about the genetic code.
What is a Codon?This is referred to as a sequence of three nucleotides which match a corresponding amino acid and useful in protein synthesis.
Different codons may encode the amino acid as a result of how they bind to transfer RNA (tRNA) which makes it the most appropriate choice.
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2. What does ectothermic mean?
Answer:
Ectotherm, any so-called cold-blooded animal—that is, any animal whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface. The ectotherms include the fishes, amphibians, reptiles, and invertebrates.
Explanation:
What are the similarities and differences between a predator-prey relationship and a herbivore-plant relationship?
Answer:
Predator-prey relationship and a herbivore-plant relationship have some of the similarities and some differences.
Similarities:
In both relationship, Predator-prey and a herbivore-plant, the interaction is between two species in which one organism or species fed over other organism. in predator-prey relationship, predator is the species that fed over prey and in herbivore-plant relationship, herbivores are the species that fed over plants. So, both are type of predation .In both relationship, one species dependent on other for their survival or food.Both relationship controls the size of recessive species such as prey and plants in the environment.Differences:
herbivore-plant has mutual interaction as herbivores eat plants and also helps plants to spread their seed and when animals die it decompose to the soil which is beneficial for plant growth while this is not same with predator-prey relationship, they have symbiotic relationship.In herbivore-plant relationship, the plants are unable to move in order to defend themselves except some mechanical advantages while in predator-prey relationship, prey can move themselves and fight for their survivalHence, predator-prey relationship and a herbivore-plant relationship have some similarities and differences as well.
TGC TAC GGC AAG transcribed into RNA
Answer:
sorry I don't know understand
You are researching an enzymatic protein in the lab and make the following observations. The usual form of the protein is globular (spherical) however, when a sample of the protein is treated with a chemical that reduces disulfide bonds, the rate of enzymatically driven product formation decreases dramatically and multiple globular proteins can be detected in the sample. From these observations you conclude: A. The primary structure of the protein contains multiple cysteine residues that are hydrolyzed by the chemical reductant. B. The protein is most likely composed of multiple polypeptide chains that are held together by disulfide bonds C. The protein is most likely composed of a helices that are held together by disulfide bonds. D. The primary and secondary structure of the protein depends on disulfide bonds. E. None of the provided statements are reasonable conclusions based on the observations,
Answer:The protein is most likely composed of multiple polypeptide chains that are held together by disulfide bonds
Explanation:
The Disulfide bonds in protein membranes are usually seen in bacteria and eukaryotes.
Answer:
Option B
Explanation:
Since the usual shape of the protein is supposed to be globular and even after treatment, it still produces the same globular proteins despite the reduction of its disulphide bonds.
The disulphide bonds should have disrupted the shape formation if it had been a mechanism for its shape formation but since multiple globular polypeptide resulted from the treatment it can be assumed that the multiple polypeptide chains are held together by disulfide bonds which are hydrolyzed by the chemical.