3) Which of the agents below might cause physical weathering in the mountains of norther Montana?
A.) acid rain
B.) carbonic acid
C.) frost wedging
D.) root intrusion Save
Answers
Answer:
B..
Explanation:
carbonic acid....
Related Questions
two radioactive nuclei a and b are present in equal numbers to begin with. three days later, there are 2.42 times as many a nuclei as there are b nuclei. the half-life of species b is 1.40 days. find the half-life of species a (in days).
Answers
A and B, two radioactive nuclei, start out with an equal quantity of radioactive atoms. Sources A and B each have a half-life of one hour and two hours, respectively.
After two hours, the ratio of A's and B's rates of disintegration is- No cause for concern. The half lifetimes of two radioactive nuclei, A and B, are respectively 10 and 20 minutes. After six minutes, the ratio of the decayed numbers of nuclei A and B will be A. 9:8, assuming that the initial number of nuclei in a sample is equal.A and B, two radioactive compounds, have decay constants of 5 and 1, respectively. They both contain the same number of nuclei at time zero.
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What is most likely to increase rates of gene flow for a marine organism that is benthic (bottom dwelling) as an adult and planktonic (in the water column) as a larva?
Answers
The most likely increased rate of gene flow for a marine organism that is benthic as an adult and planktonic as a larva is an Increased lifespan of planktonic larvae.
In people, gene flow go with the flow typically comes about thru the actual migration of human populations, each voluntary or forced. no matter the fact that gene drift does now not change allele frequencies for a species as an entire it can adjust allele frequencies in nearby populations.
High gene drift in a pathogen will boom the size of the populace and of the geographical location wherein its genetic cloth occurs. consequently, pathogens that show an immoderate degree of gene glide normally have more genetic diversity than pathogens that show a low degree of gene glide. Gene drift is the motion of genes into or out of a population. Such motion can be due to the migration of private organisms that reproduce in their new populations, or to the motion of gametes.
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Discuss the principles of natural selection and why it is that all three principles must occur for evolution to take place?
Answers
Natural selection is the process by which individualities with certain traits that are more acclimated to their trait are more likely to survive and reproduce.
The three principles of natural selection are variation, heritability, and discriminational reduplication. Variation means that there's variability among individualities of a species; heritability means that the traits that are more favorable for survival are passed on from one generation to the coming; and discriminational reduplication means that individualities with traits that are more profitable for survival are more likely to reproduce and pass on their traits to the coming generation.
All three principles must do for elaboration to take place; if any one of the principles is missing, the process of natural selection can not do, and the species won't evolve.
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brush up on what you learned about eukaryotes this week! one could easily use the evolutionary tree labeled below to make a dichotomy key to separate the three main eukaryotic kingdoms of plantae, fungi, and animalia. however, the protista kingdom is a more difficult group to add to a simple key as there are many exceptions (see the right side of the tree).
Answers
A: presence of cell walls B: Ability to obtain nutrients through absorption C: presence of chitin in cell walls D: ability to move
Character A, which separates plants from fungi and animals, is the presence of cell walls. Plants have cell walls composed of cellulose, while fungi and animals do not have cell walls. Character B, Fungi and animals are heterotrophs that obtain nutrients by absorbing organic material from their environment, while plants are autotrophs that can perform photosynthesis.
Character C, that fungi have, but animals don't, is the presence of chitin in their cell walls. Fungi have cell walls made of chitin, while animals do not possess cell walls. Character D, that animals have, but fungi don't, is the ability to move. Animals are generally capable of locomotion, while fungi are non-motile organisms that rely on other means, such as growth and spore dispersal.
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The question is inappropriate; the correct question is:
Eukaryotes Brush up on what you learned about eukaryotes this week! One could easily use the evolutionary tree labeled below to make a dichotomous key to separate the three main eukaryotic kingdoms of Plantae, Fungi, and Animalia. However, the Protista kingdom is a more difficult group to add to a simple key as there are many exceptions (see the right side of the tree). Using the tree above, answer each question below with the correct matching answer. Use each answer only once. 1. What is character A, which separates plants from fungi and animals? 2. What is character B, that both fungi and animals share, but plants don't have? 3. What is Character C, that fungi have, but animals don't? 4. What is character D, that animals have, but fungi don't?
Eukaryotes:
AnimaliaFungiPlantaeProtistawhat implication(s) does the law of conservation of matter have for humans? a. as matter is recycled it loses some of its integrity so we need to be careful when we dispose of goods. b. we cannot create energy because it is neither created nor destroyed. c. natural resources are unlimited because they are used and reused by living organisms. d. all of these are implications of the law of conservation of matter. e. disposable goods are not going away when we throw them out.
Answers
implication for the law of conservation of matter have for humans is
disposable goods are not going away when we throw them out.
Conservation law, often known as the law of conservation, is a physics principle that asserts that a certain physical attribute (i.e., a measurable quantity) does not change over time inside an isolated physical system. These kinds of principles govern energy, momentum, angular momentum, mass, and electric charge in classical physics. Other conservation rules in particle physics apply to subatomic particle characteristics that remain constant throughout interactions. The ability to forecast a system's macroscopic behaviour without having to think about the minute specifics of how a physical process or chemical reaction would unfold is a key function of conservation laws.
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a bacterium that produces an extracellular enzyme may
Answers
A bacterial extracellular enzyme or exoenzyme can be beneficial or pathogenic.
What is exoenzyme?Extracellular enzymes or exoenzymes are enzymes that are produced by a cell and act outside that cell. These enzymes are important building blocks of many biological processes. Most often these enzymes are involved in the degradation of larger macromolecules. Bacteria and fungi also produce exoenzymes to digest nutrients in the environment. Exoenzymes are used with the help of endoenzymes to power cellular pathways. Some pathogenic species also use exoenzymes as virulence factors to help spread these disease-causing microbes, and many exoenzymes are also used as virulence factors. Some examples of beneficial exoenzymes include proteases, pectinases, cellulases.Some examples of pathogenic exoenzymes include Necrotizing enzyme, coagulase.A bacterial extracellular enzyme or exoenzyme can be beneficial or pathogenic.
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Why does the C5 on D-glucose perform nucleophilic attack on C1 to form a cyclic ring instead of the other carbons?
Answers
A hemiacetal is created when the carbonyl group (C=O) on C1 and the hydroxyl group (-OH) on C5 engage in a nucleophilic assault. Because of the cyclic ring's favorable shape and stability, the C5 carbon on D-glucose attacks the C1 carbon via nucleophilic assault rather than the other carbons.
Because of the ideal bond angles and tetrahedral geometry around each carbon atom in the ring, the resulting six-membered ring, known as a pyranose, is more stable than other ring types. Under physiological settings, this cyclization reaction happens on its own and plays a crucial role in the metabolism and storage of carbohydrates in living things.
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Which endocytotic processes is important for moving fluid into cells?
Answers
The endocytotic process that is important for moving fluid into cells is called pinocytosis.
Pinocytosis is a form of endocytosis in which the cell takes in extracellular fluid along with dissolved solutes and small molecules. It allows the cell to sample its environment and uptake nutrients or other molecules present in the surrounding fluid.
During pinocytosis, the cell's plasma membrane invaginates, forming small vesicles called pinocytic vesicles or fluid-filled vesicles. These vesicles contain the fluid and solutes that were engulfed by the cell. Pinocytosis does not specifically target or discriminate molecules, but rather engulfs a portion of the extracellular fluid.
Compared to other forms of endocytosis like receptor-mediated endocytosis or phagocytosis, pinocytosis is generally involved in the uptake of smaller molecules and fluids. It plays a role in nutrient uptake, maintenance of cellular homeostasis, and receptor turnover.
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Which is the toughest and most durable of the different types of cytoskeletal filaments?.
Answers
Intermediate filaments are the toughest and most durable of the three types of cytoskeletal filaments and can survive treatment with concentrated salt solutions and detergents.
Which healthcare professional requires the greatest amount of education prior to working?
O neurosurgeon
O neurologist
neuroscience nurse
O neuro physical therapist
Answers
Answer:
Neuroligsts
Explanation:
Answer:
A. neurosurgeon
Explanation:
:D
AO3 – Analyse using table 1 the distribution of blood to the working muscles and other organs at rest and during exercise (4 marks)
Answers
Answer:
When at rest, most blood flows to other organs. But during exercise, most blood flows to the working muscles.
At birth, Himalayan rabbits are usually white over their entire bodies. But when parts of their bodies reach temperatures below 35°C, a pigment that causes these parts to turn black is produced.
Which of the following is the most likely cause of this?
Responses
Answers
Gene expression that is regulated by temperature.
A pigment is a fabric that adjustments the shade of reflected or transmitted light because the result of wavelength-selective absorption. In different words, it's a substance that appears a sure colour because it selectively absorbs certain wavelength of light.
Pigments are the compounds added to substances to give them coloration. This deceptively simple software has shaped our perception of the world via artwork, style, and even laptop presentations and medication. Pigments are utilized in paints, inks, plastics, fabric, cosmetics, and food.
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Denaturation disrupts the secondary and tertiary structure of proteins. However, denaturation is not strong enough to disrupt what interaction that is relevant to protein structure?.
Answers
Denaturation is not strong enough to disrupt the primary structure interaction that is relevant to protein structure.
What is Denaturation?This is the process in which weak linkages which make a protein structure to be highly ordered are broken.
Denaturation is mostly caused by heat and isn't strong enough to break the peptide bonds which are responsible for the primary structure and helps it t maintain the amino acid sequence.
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which of the following best compares the male and female reproductive structures of a gymnosprem
Answers
Answer:
gymnosperms produce male cones and female cones, and the pollen from a male cone fertilize the egg inside a female cone
31. What type of transport is shown in the picture?
a. Facilitated Diffusion
b. Exocytosis
c. Osmosis
d. Endocytosis
Answers
Answer:
B. Exocytosis
Explanation:
some tumor cells may produce a surface molecule, which may defend them from t cell attack. these surface molecules are called
Answers
Tumor cells can defend against invading T cells by producing surface molecules called FAS ligands.
What are FAS ligands?Fas ligand or FasL is a type II homotrimeric transmembrane protein that is expressed on cytotoxic T lymphocytes. It signals by trimming FasR, which contains “target cell membranes”. This trimerization usually causes apoptosis or cell death. Soluble Fas ligands are produced by the cleavage of membrane-bound FasL at cleavage sites managed by extra-matrix metalloproteinase MMP-7.
Upon ligand binding, Fas forms the Death-Inducing Signaling Complex (DISC). Fas ligand trimers are membrane-anchored to adjacent cell surfaces causing Fas receptor trimerization. This event is also mimicked by the binding of Fas agonist antibodies, although some evidence suggests that antibody-induced apoptotic signaling is unreliable in studies of Fas signaling. For this purpose, several smart trimerized antibodies have been used for in vitro studies.
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True or False, When respiration takes place in the presence of oxygen, it is called anaerobic respiration.
Answers
Aerobic - with oxygen
Anaerobic - without oxygen
What organisms make up the Amazon rainforwsr community ?
What is one species of organism that can be found in the Amazon Rainforest ?
What is a Biotic factor that affects the Amazon Rainforest?
What are two abiotic factors that affect the Amazon Rainforest ?
Answers
The two abiotic factors that affect the Amazon rain forest community is rainfall and sunlight.
What is the Amazon rain forest community?The Amazon rain forest community refers to the region that surrounds the Amazon basin. There are a lot of living organisms that are found around that community.
The organisms that make up the Amazon rain forest community are mostly tree species. The biotic factors that affects the species in the Amazon rain forest community is the presence or absence of climber species.
The two abiotic factors that affect the Amazon rain forest community is rainfall and sunlight.
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DESPERATE PLEASE HURRY, WILL MARK BRAINLLIST FOR CORRECT ANSWER
In the United States, 17% of energy is used for agriculture. How is this possible, if plants photosynthesize with sunlight?
Answers
Explanation:
17% of energy is used for agriculture...
how? plants need sunlight to do photosynthesis and maybe if only 17% of is used for agriculture people might get low product.. and they should atleast apply 50 to 60 percent so that more plants can do more photosynthesis and thus, they will get more products.
based on your investigation, which nucleotide change is most likely to have resulted in jenny developing tay sach's?
Answers
It happens when a kid receives a defective (mutated) copy of the HEXA gene from both parents. A lack of the enzyme beta-hexosaminidase A occurs from the genetic mutation that causes Tay-Sachs disease. The fatty compound GM2 ganglioside must be broken down by this enzyme.
Tay-Sachs disease is what kind of point mutation?The central nervous system is affected by Tay-Sachs disease, an autosomal recessive condition. The lysosomal enzyme beta-hexosaminidase A, which is made up of alpha and beta polypeptides, has an abnormality caused by mutations in the gene encoding its alpha subunit.
A genetic flaw in a child's DNA results in Tay-Sachs disease, which affects how well their nerves function. Only if both parents carry the defective gene may a child be born with it.
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Can someone help me with this one please
Answers
Answer:
I'm pretty sure the 3rd one is correct.
Explanation:
Mitosis helps to make things grow (for example, trees)
A liquid exerts a buoyant force on an object that increases as the density of the fluid increases. true or false
Answers
Answer:
true
Explanation:
which of the statements are true? cell membranes in cold tolerant winter wheat plants have a higher ratio of unsaturated fatty acids to saturated fatty acids than do cold intolerant wheat varieties.
Answers
By being squeezed, unsaturated fats can maintain membrane fluidity by causing the "kinks" in their tails that push apart neighboring phospholipid molecules. the membrane's fluidity at low temperatures.
Do fat cells die in cold temperatures?The frigid temperature damages the fat cells. Fat cells die as a result of the body's inflammation to the wound. Macrophage, a type of fatty white bloodstream cell that is part of the body's immune system, is "subpoenaed to the harm location" to eliminate the dead fats and also other waste products from the body.
At what temperature are fat cells killed?Studies by Fat Freezing have demonstrated that between 20% and 40% of fat cells can be permanently destroyed by being exposed to extreme cold (below -9 degrees). When you keep your weight stable following the surgery, this can produce results that last a long time.
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Provide an example of taxonomy being used to help identify an organism.
I dont understand its for my study guide
Answers
To identify plants, animals, snakes, fish, and minerals by their scientific names, natural scientists utilise a taxonomy key. A domestic cat, for instance, is Felis catus.
Which taxonomic system does the classification of organisms use?From lowest to highest, the eight levels of the present taxonomic hierarchy are: species, genus, family, order, class, phylum, kingdom, and domain.
What does taxonomy look like in real life?Although taxonomy is frequently used to divide organisms into many categories, it may also be used to categorise a wide variety of other objects. Taxonomy can be applied to everyday life, for instance, by organising a closet.
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Which cell type is produced by mitosis?
haploid
diploid
sperm
gamete
Answers
Answer: Your answer is B. Diploid
Hope this helps!
Answer:The Answer is
Explanation:Germ cells can divide by mitosis to make more germ cells, but some of them undergo meiosis, making haploid gametes (sperm and egg cells). Fertilization involves the fusion of two gametes, usually from different individuals, restoring the diploid state.
During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. Prior to this event, this species did not inhabit the island, but with the ample vegetation on the island and a lack of predators, the displaced individuals were able to survive and reproduce. When the butterflies initially arrived on the island, they did not have to compete for food or space. What type of population growth did they likely exhibit
Answers
Answer: Exponential
Explanation:
The main requirement for the population of a species to grow is food. When there is food, a organisms that are born will be able to live longer because food will be able to sustain them.
This is what happened with humans during the Neolithic Revolution when we began farming.
The general trend is that the more food that is available, the higher the population growth. When these butterflies arrived and found no competition for food, their population would increase in the highest way possible which is exponentially because there would be plenty of food to go around.
Answer:
Exponential growth
Explanation:
Without any competition for food or space, the butterfly species likely experienced exponential growth.
The lack of competition would have allowed the population to flourish, as they would have excess amounts of resources, food, space, and other limiting factors.
So, they most likely exhibited exponential growth.
Visualize It!
6 Identify Name three examples of matter found in
this photo.
Answers
Answer:
bag, human beings and bridge
describe 2 ways that mitosis is important for your body.
Answers
Answer: your cells are extremely hard
Explanation:
Predict the results of a mating between a hemophiliac male and a carrier female. Hemophilia is a SEX LINKED, RECESSIVE trait. Fill in the following information.
21. Genotype male _______
22. Genotype female _______
23. Punnett square:
% of total offspring:
24. % normal males ________
25. % hemophiliac males ________
26. % normal females _______
27. % hemophiliac females _______
28. % carriers _______
Answers
21.Genotype male: XhY
22. Genotype female: XHXh
23. Punnett square: XH Xh
24. % normal males: 25% (1 out of 4)
25. % hemophiliac males: 25% (1 out of 4)
26. % normal females: 25% (1 out of 4)
27. % hemophiliac females: 25% (1 out of 4)
28. % carriers: 50% (2 out of 4)
What is a Punnett square?The Punnett square is described as a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.
We can see from the Punnett square the possible genotypes of the offspring.
We see that there are are four possible genotypes:
XHXh (carrier female) XhXh (hemophiliac female), XY (normal male), Y (normal male).The percentages shows the proportion of each genotype that is among the total offspring which is four.
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Translation termination occurs whenever a {{c1::stop codon reaches the A site}}
Answers
The statement "Translation termination occurs whenever a stop codon reaches the A site" refers to the process by which the ribosome stops synthesizing a protein during translation.
Translation is the process by which the genetic information in mRNA is used to produce a protein. During translation, ribosomes read the mRNA sequence and assemble a chain of amino acids based on the codons (sequences of three nucleotides) in the mRNA.
A stop codon is a specific sequence of three nucleotides (UAA, UAG, or UGA) that does not code for an amino acid. When a stop codon reaches the A site of the ribosome, it signals the end of translation and the release of the newly synthesized protein.
At the stop codon, a release factor protein binds to the A site and triggers the release of the newly synthesized protein from the ribosome. This process is known as translation termination. Thus, whenever a stop codon reaches the A site, translation termination occurs, and the protein synthesis is completed.
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Explain the statement " Translation termination occurs whenever a stop codon reaches the A site".