Answer:
When a plant fertilizes a plant of a different species, it results in (B) cross-pollination.
I hope this helped at all.
Why are braided streams common in sedimentary rocks before the arrival of plants on land ?
Answer:
Braided rivers have a multithreaded plan form comprising many confluences and diffluences (Miall, 1977). Braid bars and channels can be classified as a hierarchy depending upon their relative size, and three orders of braiding can be seen in proglacial rivers with constant discharge. First-order braid bars are those largest bars which are separated by major channels. First-order bars are made up of a series of smaller, second-order braid bars, which are separated by smaller channels. Third-order braid bars are contained within second-order bars. Complexity of braid pattern is, however, strongly stage dependent, with rivers losing their braided character during peak flood conditions. Braid bars, mid-channel bars, unit bars, and islands have been described in braided river systems on a range of scales ranging from meters to kilometers. All bars are subject to dissection , remobilization, and migration by the appropriate discharge magnitude and frequency (Miall, 1977, 1983).
Explanation:
what is iris diaphragm
Answer:
noun Optics, Photography. a composite diaphragm with a central aperture readily adjustable for size, used to regulate the amount of light admitted to a lens or optical system. Also called iris.
Explanation:
How does golgi apparatus and lysosomes work together
Answer:
A lysosome is basically a specialized vesicle that holds a variety of enzymes. ... Those proteins are packaged in a vesicle and sent to the Golgi apparatus. The Golgi then does its final work to create the digestive enzymes and pinches off a small, very specific vesicle. That vesicle is a lysosome.
If you have been vaccinated against a virus, what should happen when you are exposed to that virus?
the primary immune response
a potentially fatal infection
a lifelong infectious disease
the secondary immune response
Answer:
the primary immune response
Explanation:
<3
Animal physiology and anatomy
Describe briefly the importance of energy diet in reproduction
Answer:
Animal Physiology
Animal physiology is the study of how animals work, and investigates the biological processes that occur for animal life to exist. These processes can be studied at various levels of organization from membranes through to organelles, cells, organs, organ systems, and to the whole animal. Animal physiology examines how biological processes function, how they operate under various environmental conditions, and how these processes are regulated and integrated. The study of animal physiology is closely linked with anatomy (i.e., the relationship of function with structure) and with the basic physical and chemical laws that constrain living as well as nonliving systems. Although all animals must function within basic physical and chemical constraints, there is a diversity of mechanisms and processes by which different animals work. A comparative approach to animal physiology highlights underlying principles, and reveals diverse solutions to various environmental challenges. It can reveal similar solutions to a common problem, or modifications of a particular physiological system to function under diverse conditions. The discipline of animal physiology is diverse and here the major areas of research and investigation are outlined.
TROPICAL SOILS | Humid Tropical☆
S.W. Buol, in Reference Module in Earth Systems and Environmental Sciences, 2013
Chemical and Mineralogical Composition of Soils
Of the chemical elements essential for plant and animal physiology, only carbon, oxygen, and hydrogen, are derived directly from air and water. Nitrogen and to some extent sulfur are derived from the air but must be present as inorganic ions in the soil before they can be utilize by plants. The other essential elements are obtained from the dissolution of minerals in the soil. Essential element bearing minerals are derived from the geologic material within which the soil is formed. An inadequate supply of any essential element limits plant growth. The most frequent limitations result from insufficient plant-available nitrogen, phosphorus, potassium, calcium, or magnesium.
Practically no nitrogen is present in soil minerals. Nitrogen enters the soil as ammonium and nitrate dissolved in rainwater or via fixation from the air by nitrogen-fixing microbes in the soil. Some nitrogen-fixing microbes in the soil are symbiotic and the nitrogen they extract from the air is incorporated into their legume plant host. Other nitrogen-fixing microbes are not symbiotic, and the nitrogen they extract from the air is incorporated into their cells. Nitrogen is also present in the organic residues of dead organisms in and on the surface layers of soil. Plants do not ingest the organic forms of nitrogen but as microbes in the soil decompose organic residues and exhaust carbon dioxide to the air inorganic forms of nitrogen are released into the soil solution and become available to growing plants, leach into the groundwater during periods of excessive rainfall, or return to the air as nitrogen gas during periods when the soil is saturated with water. Plant-available nitrogen contents in soil are transient and closely related to the nitrogen content in the organic residue and the rate at which the residue is decomposing.
Phosphorus is present in only a few minerals in the soil. Apatite, a soluble calcium phosphate mineral capable of supplying plant-available phosphorus, is the most common source of phosphorus and most abundant in soil formed in limestone. Iron and aluminum phosphate minerals are extremely insoluble and do not release phosphorus rapidly enough for rapid plant growth. Soils with high iron and aluminum contents tend to absorb phosphate applied as fertilizer and decrease its availability to plants. This is a serious problem in attempts to fertilize food crops in many soils in the tropics.
Potassium is present in mica and feldspar minerals. These minerals are rather easily decomposed in the soil environment and consequently are sparse in soils formed in siliceous materials and sediments that have been repeatedly transported and deposited on the land surface.
Calcium and magnesium are most abundant in carbonate minerals associated with limestone and some carbonate rich sandstone. Carbonate minerals are also relatively unstable when subjected to weathering and therefore most abundant in soils formed directly from limestone, some sandstone, and recently deposited sediments derived from carbonate rich rock.
Name the three common states of matter on earth.
Which states of matter have a set shape? Explain why this is, based on the animations you observed for the different states of matter.
Which states of matter have a set volume? Explain why this is, based on the animations you observed for the different states of matter.
The boiling point is the temperature at which a liquid substance will turn to vapor, and also the temperature at which vapor will condense to a liquid. The boiling point of ethanol is about 80°C, and the boiling point of water is about 100°C.
What can you conclude about the intermolecular forces in water and ethanol?
Do you predict water freezes at a higher temperature or at a lower temperature than ethanol?
Recall how different Van der Waals attractions and how ionic charges changed the movement of atoms in the animation. Do you think that Van der Waals attractions or ionic charges are stronger? Why?
1. solid, liquid and gas
2.Solid can move but gas and liquid is more flexible than solid. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid is flexible.
3.Among the 3 state, solid has a fixed volume while liquid takes the volume of its container. When gas is compressed, it takes the volume of its container likewise.
the answer is solid, liquid and gas
Answer:
1. Liquid, Solid, Gas
2. Solid has a set shape. Solid can move but gas and liquid is more flexible than solid.
3. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid are flexible.
4. A. The stronger the intermolecular forces in a liquid the higher the boiling point. Therefore, water has a stronger intermolecular force than ethanol.
B. Water molecules are more attracted to each other than ethanol (alcohol) molecules, because water has more hydrogen atoms bonded to oxygen. ... So, that's why alcohol has a much lower freezing point
5. Ionic charges are stronger.
Covalent bonds are known to have the strongest and most stable bonds since they go deep and into the inter-molecular state. A diamond is an example of a compound with this characteristic bond.
Ionic bonds are the next strongest molecular bond following covalent bonds. This is due to the protons and electrons causing an electro-static force which results to the strong bonds. An example would be Sodium Chloride (NaCl), which when separated is Na⁺ and Cl⁻.
Van der Waals forces, also known as Dispersion forces, are the weakest type of molecular bonds. They are only formed through residual molecular attractions when molecules pass by each other. It doesn't even last long due to the uneven electron dispersion. It can be made stronger by adding more electrons in the molecule. This kind of molecular bonds appear in non-polar molecules such as carbon dioxide.
Explanation:
These are the answers based on the reading material provided by James Madison High School
which describes fat?
A. a lipid that stores energy
B. a nucleic acid that directs cell function
C. a protein that speeds up a chemical reaction
D. a carbohydrate that produces energy
Answer:
The answer is A
Explanation:
a lipid that stores energy
low elevation and low latitudes result in ____________________
Group of answer choices
cold temperatures
hot temperatures
wetter climate
more change in temperature
Answer:
5
Explanation:
What is ingestion?
A. getting rid of the parts of the food that the body
couldn't use
B. absorbing nutrients from the food that was eaten
into the blood stream
C. breaking down of the food after it has entered the
body
D. putting food and drinks into your body
What is the chemical name of K2O? (correct answer gets brainliest)
A) potassium oxygen
B) potassium oxide
C) oxygen potasside
D) oxygen potassium
Answer:
A because K is potassium
Question 5 (True/False Worth 1 points)
(02.02 LC)
TRUE OR FLASE QUESTION (WORTH 50 POINTS)
Water takes a longer time to change temperature than alcohol does because water requires a larger amount of heat to be absorbed to cause the change.
()True
Or
()False
Answer:
True
Explanation:
Water freezes faster than alcohol due to lower freezing point.
Water takes less time to freeze than alcohol but can absorb a large amount of heat with only a small change in its temperature. Alcohol has -114.7 degrees Celsius of freezing temperature whereas water has freezing point of 0 degrees Celsius.
The given statement is true. Water freezes faster than alcohol. Due to its lower freezing point than alcohol, water freezes more quickly.
Why water freezes faster than alcohol?Alcohol takes longer to freeze than water, but water can absorb a lot of heat with just a slight change in temperature. Water has a freezing point of zero degrees Celsius, but alcohol has a freezing point of -114.7 degrees Celsius.
Because water molecules must be forced to move more quickly within the water in order for the temperature to rise, water is more able to absorb heat than many other substances. As a result, water freezes more quickly than alcohol.
Therefore, The given statement is true. Water freezes faster than alcohol. Due to its lower freezing point than alcohol, water freezes more quickly.
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Name three reasons, as to why, bacteria is so widespread into different life/ecosystems
Answer:
Bacteria are decomposers which break down dead material and recycle it. They also can be producers, making food from sunlight, such as photosynthetic bacteria, or chemicals, such as chemosynthetic bacteria.The most influential bacteria for life on Earth are found in the soil, sediments and seas. Well known functions of these are to provide nutrients like nitrogen and phosphorus to plants as well as producing growth hormones. By decomposing dead organic matter, they contribute to soil structure and the cycles of nature. Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers.Explanation:
What occurs if kelp is not present to absorb CO2 or produce O2?
there won't be fresh oxygen and CO2 will be dangerous for out health and we may not have some of the energy that we have today because kelp also can produce energy.
All other living organisms in the aquatic environment will be negatively affected if Kelp is not present to absorb CO2 or produce O2.
ROLE OF PHOTOSYNTHESIS:
Kelp are living organisms in the kingdom Protista, which possess the ability to photosynthesize or use energy from sunlight to produce food. Photosynthesis is a process that absorbs CO2 from the atmosphere and release O2 as a gaseous product. Kelp is a producer of aquatic environment, which means it helps to absorb CO2 and release O2 into the atmosphere. This O2 is used for cellular respiration by other living organisms. If kelp is not present to absorb CO2 or produce O2, other other living organisms in the aquatic environment will be negatively affected.Learn more about the role of photosynthesis at: https://brainly.com/question/1388366?referrer=searchResults
what type of stress is placed on a normal fault
PLEASE HURRY IM ON A TIMER
What causes the differences in physical characteristics like hair color among people?
A. different versions of genes
B. variations in DNA length
C. different numbers of chromosomes
D. variations in cell nucleus size
Answer:
i think B
Explanation:
:)))))
do you think carbon sinks can ever completely reverse global warming, why or why not?
Answer:
Explanation:
Framed in this way, the problem of climate change becomes not one of simply producing greenhouse gas, but how quickly we do so when compared with the Earth’s natural ability to soak it up again. And it makes that natural ability – the continuing capacity of forests and oceans to act as carbon sinks – as significant a factor in deciding the likely course of rising temperatures in the near future as intended controls on our greenhouse gas emissions. Yet many people are unaware of this side of the carbon balancing equation. And if they are, they take it for granted – they expect that forests and oceans and other carbon sinks will continue to act as our environmental get-out-of-jail-free card.
Or, more accurately, our go-to-jail-slightly-slower card. While sinks have managed to grab about half the carbon released as human pollution in recent centuries, the rest steadily accumulates in the atmosphere. The forests and oceans simply can’t suck it in fast enough. At the last count, atmospheric levels of carbon dioxide registered almost 412 parts per million (ppm) and rising. That’s a 47 per cent jump since the beginning of the industrial age, when the concentration was near 280 ppm, and an 11 per cent rise since just 2000, when it was near 370 ppm. Without our natural carbon sinks working to buffer the impact, that figure would probably be closer to 700ppm today.
It makes sense, then, that the future behavior of Earth’s massive carbon sinks – and specifically the question of whether they will continue to bail us out by taking in carbon dioxide – is a key topic of research for scientists. How will tropical forests respond to warmer temperatures? Will ocean currents continue to carry carbon to the depths? What happens to the pace of climate change if the carbon-catching capacity of these sinks weakens?
PLEASE HELP!!! WILL MARK AS BRAINLIEST!!! D:
A. SICKLE CELL ANEMIA: GENETICS AND EVOLUTION
Circle the mutation in DNA of the sickle-cell beta-globin gene fragment in the table below:
Wild-type beta-globin gene fragment
C A C G T A G A C T G A G G A C T C
Sickle-cell beta-globin gene fragment
C A C G T A G A C T G A G G A C A C
Transcribe beta-globin DNA into mRNA. Note: DNA is already arranged in triplet sets (below).
Translate mRNA codons into amino acids of hemoglobin protein sequence using the chart on page 3.
Wild-type beta-globin gene fragment
C A C G T A G A C T G A G G A C T C
Transcription produces mRNA fragment:
Translation produces wild-type beta-globin polypeptide fragment:
Sickle-cell beta-globin gene fragment
C A C G T A G A C T G A G G A C A C
Transcription produces mRNA fragment:
Translation produces mutant beta-globin polypeptide fragment:
In this example an adenine replaces a thymine. Wild-type mRNA GUGCAUCUGACUCCUGAG/ Protein Val-His-Leu-Thr-Pro-Glu. Mutated mRNA GUGCAUCUGACUCCUGUG/ Protein Val-His-Leu-Thr-Pro-Val.
--------------------------
Mutations are changes that occur in DNI nucleotide sequences that introduce new variants.
There are different types of mutations. In the exposed example, the last thymine from the Wild-type beta-globin gene fragment is replaced by an adenine in the Sickle-cell beta-globin gene fragment. The other bases remain equal.
Wild-type gene fragment ⇒ C A C G T A G A C T G A G G A C T C
Sickle-cell gene fragment ⇒ C A C G T A G A C T G A G G A C A C
Wild-type beta-globin gene fragment
TranscriptionTranscription occurs in the nucleus. In RNA uracil replaces thymine.
While growing mRNA molecule,
adenine pairs uracil, thymine pairs adenine, and guanine pairs cytosine.DNA ⇒ C A C G T A G A C T G A G G A C T C
mRNA ⇒ G U G C A U C U G A C U C C U G A G
TranslationTranslation occurs in the cytosol. mRNA codons codify for amino acids.
Codons have been separated by a space.
mRNA ⇒ G U G C A U C U G A C U C C U G A G
Protein ⇒ Valine - Histidine - Leucine - Threonine - Proline - Glutamine
Sickle-cell beta-globin gene fragment
TranscriptionDNA ⇒ C A C G T A G A C T G A G G A C A C
mRNA ⇒ G U G C A U C U G A C U C C U G U G
Translation
mRNA ⇒ G U G C A U C U G A C U C C U G U G
Protein ⇒ Valine - Histidine - Leucine - Threonine - Proline - Valine
---------------------------------------
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can someone please help me out :)
Answer:
A
Explanation:
The pharynx is part of the digestive system as well as the respiratory system because it carries both food and air.
Question 6
The electrical charge of a particle called
Answer:
The electrical charge of a particle is called an electric charge.
Explanation:
Electricity always comes in units of the Coulomb, which is the unit of measurement for electric charges. One Coulomb is defined as follows: "the quantity or magnitude of electricity carried by an electron in the electrostatic field around a point on the Earth with coordinates (latitude, longitude)". We can use units like volts and amperes to communicate this kind of data now, but typically you'll see it written as Cs.
To do some simple arithmetic with these units you need to know that one Couloth will equal 93 millimeters squared per second times per second (mC/s*ms).
13. It is strongly recommended that pesticides be applied by:
It is strongly recommended that pesticides be applied by competent professionals.
What are Pesticides?Pesticides are chemicals that are designed to get rid of pests.
Because these chemicals can be poisonous to other organisms in the environment, including humans, pesticides should be carefully applied.
Thus, it is strongly recommended that only those that are trained in the art of pesticide applications are called upon to apply the chemicals in the environment.
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which of the following food nutrients is needed to build structural components of the body
Answer:
Carbohydrates, fats, vitamins, minerals, fibre, water, and proteins!!!
Explanation:
Proteins. Proteins give your body amino acids — the building blocks that help your body's cells do all of their everyday activities. Proteins help your body build new cells, repair old cells, create hormones and enzymes, and keep your immune system healthy. There are also, carbohydrates, fats, vitamins, minerals, fibre and water. It is important that everyone consumes these seven nutrients on a daily basis to help them build their bodies and maintain their health.
Have a great day! :D
Why do most food chains only two, three or rarely ,four consumers after the green plant producer?
Answer:
It is rare to find food chains that have more than four or five links because the loss of energy limits the length of food chains. At each trophic level, most of the energy is lost through biological processes such as respiration or finding food
Explanation:
Answer:
Because so much energy is lost to life processes.
Explanation:
As you progress through each trophic, each organism on that level loses energy gained from the previous trophic. This is due to losing energy through wasted material (e.g. bones) and to life processes, 7 of which can be remembered by MRS GREN:
M ovement
R espiration
S ensitivity
G rowth
R eproduction
E xcretion
N utrition
This means that each time, energy is wasted and lost from the food chain. More than four trophics would result in so much energy being lost from the initial trophic (producer), that it would be largely pointless!
All cells in the body have the same genome, with a couple of exceptions. What are these exceptions?
Answer:
red blood cells, which contain no DNA in their mature state, and some immune system cells that rearrange their DNA while producing antibodies
Cell is the basic unit of life and they contain the needed information known as the DNA (genetic material) to carry out the basic life functions and processes.
All cells in the body essentially have the same genome except some red blood cells and some immune cells.
Red blood cells do not contain as DNA as they lack a nucleus so they are an exception to the rule. While some immune cells needs to reassemble their genome in order to aid in the production of antibodies.
Actually, gene expression comes in with this because cells become different as a result of the fact that a cell can decide which gene is to be expressed or not in accordance to its function it is supposed to perform.
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Cessation of breathing is called
Answer:
I would be willing to bet that the answer to this is Apnea
Apnea is defined as "temporary cessation of breathing, especially during sleep"
I need someone to fully describe interphase, prophase, metaphase, anaphase, telophase, and cytokenisis
Answer: Interphase is the phase of the cell cycle in which a typical cell spends most of its life. Interphase is the 'daily living' or metabolic phase of the cell, in which the cell obtains nutrients and metabolizes them, grows, replicates its DNA in preparation for mitosis, and conducts other "normal" cell functions, prophase is the first stage of cell division, before metaphase, during which the chromosomes become visible as paired chromatids and the nuclear envelope disappears. The first prophase of meiosis includes the reduction division, metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell. During this stage in human cells, the chromosomes then become visible under the microscope, anaphase is the stage of mitosis after the process of metaphase, when replicated chromosomes are split and the newly-copied chromosomes are moved to opposite poles of the cell, Telophase is the final stage in both meiosis and mitosis in a eukaryotic cell. During telophase, the effects of prophase and prometaphase are reversed, Cytokinesis is the part of the cell division process during which the cytoplasm of a single eukaryotic cell divides into two daughter cells. Cytoplasmic division begins during or after the late stages of nuclear division in mitosis and meiosis.
Personal public appearances are a form of advertising.
True
False
Answer: True
Explanation:
What do organisms do with the products of cellular respiration?
Explanation:
it combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life sustaining activities and discarding
I'll give brainist to the correct answer!!
Which choice is a compound?
oxygen
carbon
carbon dioxide
air
Answer:
Carbon dioxide
Explanation:
The others are just lonely elements all by themselves. A compound is when they are joined together, like carbon dioxide, or CO2, which is one carbon atom and two oxygen atoms.
Original dna: CTGCAA
MUTATED DNA: CGCAA
THIS IS AN EXAMPLE OF
Hey, I need help with this question:
Answer:
A) Phylogenetic species concept.
Explanation:
Phylogenetic species concept defines a species as a group of organisms that shares a common ancestors and can be distinguished from other that do not share that ancestor.