Answer:
The nitrogen cycle represents one of the most important nutrient cycles found in terrestrial ecosystems (Figure 9s-1). Nitrogen is used by living organisms to produce a number of complex organic molecules like amino acids , proteins , and nucleic acids .
Explanation:
The molecules which are involved in a Nitrogen Cycle include the following:
Nitrate ions (NO3−)Ammonium ions (NH4+)UreaNitrogen cycle is the biogeochemical cycle which involves the conversion of
nitrogen into various forms. This helps to ensure adequate availability and
distribution of the element in the soil and in the atmosphere.
The following below are processes which ensures nitrogen distribution
FixationAmmonificationNitrificationDenitrification.Read more about Nitrogen cycle here https://brainly.com/question/1380063
Why are plants and animals able to survive in the tundra?
The Arctic and the summits of mountains are home to tundra ecosystems, which are characterized by their lack of trees and harsh climates with little rainfall.
What is tundra region?Snow covers tundra lands for the majority of the year, but summer provides bursts of wildflowers.
The small plants of the tundra employ dormant strategies, producing seeds only occasionally, turning with the sun to absorb energy, and growing protective coverings.
The ability to build subterranean insulated tunnels as well as heavy winter coats, seasonal color-changing camouflage, and efficient body shapes have all been developed by animals that live in the Arctic tundra.
Therefore, The Arctic and the summits of mountains are home to tundra ecosystems, which are characterized by their lack of trees and harsh climates with little rainfall.
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Answer: Plants and animals are able to survive in the tundra because they have adaptations that allow them to thrive in the harsh conditions of the Arctic and sub-Arctic regions. These adaptations include thick fur or feathers to insulate against the cold, small body size to minimize heat loss, and the ability to store food and nutrients during the short growing season. Additionally, many tundra plants have shallow roots that can absorb nutrients quickly when they are available, and some have developed the ability to photosynthesize at low temperatures and with minimal sunlight.
Which of the following best explains the flow of energy in this food web?
Mushrooms → Hawk → Squirrel → Grasshopper
Mushrooms → Snake → Squirrel → Plants
Grasshoppers → Snake → Wolf → Hawk
Plants → Grasshopper → Snake → Mushrooms
Answer:
Plants → Grasshopper → Snake → Mushrooms
Explanation:
Read it from the sun, then it points to the grass, then grasshopper, then snake, then mushroom.
What kind of skull is this
Answer:
The skull is from a fossil skull of Styracosaurus - a horned dinosaur.
Explanation:
This skull image is the skull of a Styracosaurus dinosaur who was a huge dinosaur almost 5 meters or more with the horned present on the skull. This is a fossil skull representation from the fossils.
Styracosaurus was present 75 million years ago during the Cretaceous period who was a completely herbivorous ceratopsian dinosaur.
Thus, the skull is from a fossil skull of Styracosaurus - a horned dinosaur.
Do you like pineapple pizza?
Answer:
Nah
Explanation:
Don’t need fruit on pizza
Ground pork should be cooked to an internal temperature of _______________ to destroy the parasite Trichinella spiralis.
Answer:
160°
Explanation:
Ground pork should be cooked to an internal temperature of 160° to destroy the parasite Trichinella spiralis. 160°F (71°C) 89. All of the following are good instructions for preventing foodborne illness except when shopping, select meat, poultry, or fish first.
Which process of evolution would best explain why closely neighboring sites have very similar beetle populations
Answer:
Gene flow
Explanation:
Gene flow can be defined as the transfer of genes from one population to another, which may be due to the migration of individuals that reproduce in the new population or due to gamete dispersal (for example, pollen dispersal in plants). Gene flow is a very important mechanism capable of changing allele frequencies in populations. Gene flow is low in species with low dispersal ability and has a huge effect in populations with small sizes. Moreover, high rates of migration among nearby populations are expected to increase their genetic homogeneity (thereby constraining speciation processes).
Down syndrome occurs when an individual has a mutation of chromosome 21. In what organelle does this mutation occur? A)cell wall B)genes C)mitochondria D)Nucleus
Answer: B
Explanation: A chromosome is a long strand of DNA. Your DNA is the sequence that holds the "info" to make a gene.
help !! please I’m lost !! I’m not too sure
Answer:
the answer is west part of state
down syndrome is the result of an extra chromosome 21. Which type of mutation is down syndrome
Answer:
Genetic
Explanation:
because of the genes being passed
Answer:
Abnormal cell division.
Explanation:
Abnormal cell division is the type of mutation that causes down syndrome.
its not that hard 20 points! im just too lazy
Ferns have _____.
A.nonvascular tissue and no seeds
B.vascular tissue and no seeds
C.nonvascular tissue and seeds
D.vascular tissue and seeds
Answer:
I think the answer is gonna be b
Answer:
B
Explanation:
it is correct because I did it
Helpppp !!!!!!! Plis
Answer:
Sample 4.
Explanation:
Oxygen is very important for life, so this should be present.
what are the characteristics of trichloysis in a paramecium?
HELLLPPP!!!!!!! What are some aquatic animals named after big musical instruments?
Answer:
a
Explanation:
a
SOMEONE PLEASE HELP ME OUT WITH THIS PLEASE HELP me!!!!!
Answer:
B. The nucleus is responsible for housing the genetic information needed for cell division.
Explanation:
I am pretty sure it is B from the information I found.
- The nucleus is a highly specialized organelle that serves as the information and administrative center of the cell. This organelle has two major functions. It stores the cell's hereditary material, or DNA, and it coordinates the cell's activities, which include intermediary metabolism, growth, protein synthesis, and reproduction (cell division). -
What statement best describes the role of DNA in protein synthesis?
DNA forms the structural parts of the ribosomes
DNA joins the chains of amino acids to form a protein
DNA carries the amino acids to the ribosome during translation
DNA contains the code for the order of amino acids in proteins
Answer:
DNA contains the code for the order of amino acids in proteins
Explanation:
Describe how the genetic code found in DNA bases is used to synthesize a polypeptide chain.
Answer:
The genome of an organism is inscribed in DNA, or in some viruses RNA. The portion of the genome that codes for a protein or an RNA is referred to as a gene. Those genes that code for proteins are composed of tri-nucleotide units called codons, each coding for a single amino acid.
What are the three major steps involved in mRNA processing?
The three major steps in mRNA processing are capping, splicing and polyadenylation.
What is mRNA processing?The mRNA produced by the process of transcription of DNA is not functional and needs further processing. This mRNA is called precursor mRNA or pre mRNA.
The result of the processing is the production of mature mRNA which can be translated to form proteins.
mRNA modifications required to yield mature mRNA are 5' capping, splicing of introns, and 3' polyadenylation.
5' capping means the addition of a 7' methylguanosine cap (m7g) to the 5' end of the mRNA.
Introns are non-coding regions present in the precursor mRNA which need to be removed. These are removed by the process of mRNA splicing. The coding regions are called exons which are joined after the introns are removed. Exons can be translated into proteins.
At the 3' end of the pre mRNA, cleavage occurs and 250 adenine residues are added. This forms a polyadenylated tail at the 3' end of the mRNA.
Therefore the three major steps in mRNA processing are capping, splicing and polyadenylation.
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Which of the following describes what happens on March 21st?
autumnal equinox
summer solstice
vernal equinox
winter solstice
Answer:
(C) vernal equinox
Explanation: hope this helps!
In the carbon cycle, how is carbon stored in organisms and then exchanged with the environment?
Answer:
The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.
Explanation:
Which electrical device runs on direct current
Answer:
A converter
Explanation:
Bottom-oriented fish have large, broad pectoral fins and depressed( flattened top-to-bottom) body shapes. Explain how these adaptations are well suited for life at the bottom of a body of water.
Answer:
they are better for camoflauge and for deep pressure
Explanation:
the fins helps control the crushing pressure that is constant at deep depths and the flattened bodies make them less visible since it is dark
Bottom-oriented fish have large, broad pectoral fins and depressed (flattened top-to-bottom) body shapes.These adaptations are well suited for life at the bottom of a body of water.
What is adaptation?Adaptation refers to the process where organisms inherit traits that help for better survival and reproduction in its environment.The large, broad pectoral fins and depressed body shapes of bottom-oriented fish are well-suited for life at the bottom of a body of water for several reasons:
The broad pectoral fins provide the fish with greater surface area, which allows them to maintain their position and stability while resting on the bottom of the water body The depressed body shape of these fish allows them to minimize their profile and reduce their exposure to the water current.Hence, the large, broad pectoral fins and depressed body shapes of bottom-oriented fish are adaptations that help them to survive and thrive in the challenging conditions of the bottom of a body of water.
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GIVING BRAINLIEST AND 20 POINTS PLS HELP lol
A bird’s body cells have 36 chromosomes. How many chromosomes are in the same bird’s sperm or egg cell?
Answer:
Explanation:
4
I need extreme help!!1 I'm doing an essay in biology that is only 5 sentences long. I'll leave my teacher's example. The question is "How can science improve our lives?" (THIS IS THE EXAMPLE: “In today’s world, science can be used to improve the lives of many people. One example of how science can improve our lives is by allowing us to gain new knowledge and perspectives about how the world works. We can learn from our mistakes and build new ideas as we continue to research and learn more about the world around and inside of our bodies. Another example of how science can improve our lives is by providing new advancements in technology such as medicines and vaccines that help eliminate certain diseases. One final way that science can be used to improve our lives is by creating a universal language in the scientific method that we can all contribute to in our own ways. In conclusion, learning about science can benefit us as individuals and as a society by making our lives better in a number of ways- it helps us see new perspectives, make advances in technology and medicine, and creates a universal method for how we interpret the world.") PLEASE AND THANK YOU!!
Answer:
Science is involved in cooking, eating, breathing, driving, playing, etc. The Clothing we where is a fabric that has been studied. The air we breath has been studied. The food has also been studied. Everything we do in our life's has been studied by scientists. It improves how we live. We would not know about the air we breath, the tech were using, the medicines we use. Imagine not knowing what your breathing or you don't know about what your having to make you feel better it might not be even right for your sickness.
Explanation:
Hope this helps. I can prove it by: when I looked it up this came up. But I changed up and add some tuches into it. Feel free to change what you like or use it.
LOOKED UP INFO: Scientific knowledge can improve the quality of life at many different levels—from the routine workings of our everyday lives to global issues. Science informs public policy and personal decisions on energy, conservation, agriculture, health, transportation, communication, defense, economics, leisure, and exploration.
Plant seedlings with sunlight shining on them.
What is one energy transformation that is taking place in the photo?
radiant energy to thermal energy
thermal energy to nuclear energy
chemical energy to thermal energy
radiant energy to chemical energy
Answer:
radiant energy to chemical energy
EXPLANATION:
sunlight is ntg but radiation, it falls on leaf and through the process of photosynthesis it converts radiant energy to chemical energy
Answer:
D
Explanation:
The person above me is right.
To help explain surface tension, use a single water molecule in the template, and draw arrows representing the possible locations of hydrogen bonds formed by the molecule. The possible hydrogen bonds formed by a water molecule below the surface are shown.
Answer:
The correct representation is attached with the explanation.
Explanation:
In this representation of the surface tension, blue arrows between green water molecules are the possible molecules that can be used as the location for forming hydrogen bonds by a single molecule. Surface tension is the tendency of a liquid surface strectch to neighbouring molecules or ability to shrink in minimum surface area possible. Hydrogen bonds is an intermolecular force or interaction responsible for the surface are of liquide molecules. This bonds is towards every direction where the similar molecule present.
C.___P2O3 ___P4+ ___O2 right answers only
Answer: The answer is B
Explanation: It’s P2O3 and P4 and O3, to balance them you have to put a 2 in the first so it’ll be P4O6 ——— P4 , O6.
Water has a pH of 7. If you add and acid to this water, how would it affect the pH?
)
A)
pH would increase
B)
pH would decrease
pH would not change
D)
All of The Above
Answer:
pH would decrease in this case
Explanation:
Adding water to an acid or base will change its pH. Water is mostly water molecules so adding water to an acid or base reduces the concentration of ions in the solution. When an acidic solution is diluted with water the concentration of H + ions decreases and the pH of the solution increases towards 7.
When sodium ions enter a neuron through chemically gated channels, they always cause depolarization, and thus firing of the cell. The same effect occurs when we contract skeletal muscle cells because they also contain
Answer:
Calcium ions
Explanation:
This is because the contraction of skeletal muscle occurs as a result of the release of Calcium ions from internal stores which is a result of the function of a neural signal.
So, skeletal muscles contract when calcium ions are released. There is also an action potential which is generated which causes the muscle to contract. This action potential is present in both skeletal muscle cells and neurons and is as a result of the movement of sodium ions in neurons and calcium ions in skeletal muscle cells.
Why we should care that greenhouse gases have been increasing? (2-3 sentences at least please).
Answer:
We should care about greenhouse gasses becasue, to much of it is causeing global warming. Which causes glaciers/polar ice caps and ice to melt. Greenhouse gasses also cause things like hurricanes, cyclones, typhoons. And sooner or later the ozone layer will break more and will allow radiation to come and heat up the planet more, and can disrupt the atalntic current and then could cause superstorms to start a new ice age. This is why we should care
Explanation:
In rabbits, black fur (B) is dominant to white (b), and long ears (E) are dominant toshort ears (e). What is the expected phenotypic ratio of the offspring ofa BBee x bbEE cross if these alleles sort independently? (B.6F)16 Black/Long Ears : 0 Black/Short Ears : 0 White/Long Ears : 0 White/ShortEars8 Black/Long Ears : 0 Black/Short Ears : 8 White/Long Ears : 0 White/ShortEars4 Black/Long Ears : 4 Black/Short Ears : 4 White/Long Ears : 4 White/ShortEars1 Black/Long Ears : 3 Black/Short Ears : 3 White/Long Ears : 9 White/ShortEars
Answer:
16 Black/Long Ears : 0 Black/Short Ears : 0 White/Long Ears : 0 White/ShortEars
Explanation:
Black fur (B) is dominant over white (b) and long ears (E) is dominant over short ears (e).
BBee was crossed with bbEE:
BBee x bbEE (See the attached image for the Punnet's square)
Offspring:
16 BbEe - Black fur and Long ears
All other phenotypes are 0.
Hence, the answer would be 16 Black/Long Ears : 0 Black/Short Ears : 0 White/Long Ears : 0 White/ShortEars.
