Answer:
the partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules.
Explanation:
S
1. What two scientific theories support the Big Bang?
Newton's Law of Gravity and the Cosmological Principle
The 1920s discovery by Hubble of a correlation between galaxy speed and distance from Earth and the 1960s discovery of cosmic microwave background radiation are two significant scientific findings that lend considerable support to the Big Bang idea.
Which two concepts underlie the big bang theory?A wide variety of known phenomena, like as the abundances of the light elements, the CMB, large-scale structure, and Hubble's law, are fully explained by the Big Bang theories.
What are the Big Bang theory's supporting facts, according to the Regents?Measured elemental abundances, observed space expansion, and the finding of the cosmic microwave background are three crucial pieces of observational data that support the Big Bang idea (CMB).
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Mutation happens during which of the following processes?
D Protein synthesis
A DNA transcription
B DNA replication
CTranslation
How is an actual greenhouse similar to the natural greenhouse effect?
Explanation:
That's because the glass walls of the greenhouse trap the Sun's heat. The greenhouse effect works much the same way on Earth. Gases in the atmosphere, such as carbon dioxide, trap heat just like the glass roof of a greenhouse.
Why would it be harder to deprive someone of just NREM sleep than just REM sleep?
Explanation:
During REM sleep, your eyes move around rapidly in a range of directions, but don't send any visual information to your brain.That doesn't happen during non-REM sleep.
More information
It is harder to wake someone up when their in NREMREM reports are typically rated as more intense, bizarre, perceptually vivid, emotional and kinesthetically engaging [8,11,14] than non-REM reports, which are typically more thought-like and conceptual [16,18].(I just thought that the extra information would help)
(By the way could you mark me as brainliest?)
what re stomata?how do they help leaves tomae food.
love you all
Answer:
Stomata allow a plant to take in carbon dioxide, which is needed for photosynthesis. They also help to reduce water loss by closing when conditions are hot or dry. Stomata look like tiny mouths which open and close as they assist in transpiration.
:)
What is the relationship between bond type and electrical conductivity? How can you use this relationship to predict the bond type in a substance based on electrical conductivity?
Answer:
If a compound is conductive when dissolved in water, it is ionic. If a compound is not conductive when dissolved in water, it is covalent. If a compound is conductive in its pure state, it is metallic.
Explanation:
please I need help with the pedigree questions
Pedigrees can be used to determine the inheritance pattern of a gene, among other uses. In the exposed example, a) No, the allele is not dominant. b) Yes, the gene is sex-linked (X-linked). c) II8: X+X-. III13: X+Y. III14: X-Y.
What is a pedigree?
A Pedigree is the representation of a family's history. This graph is used to track a trait through different generations, and analyze the inheritance pattern of a particular gene and its expression.
It is a tool used to understand how genes are transmitted from the parental generation to the descendants, and what are the probabilities of inheriting them.
In the e xposed exaple, we have three generations I, II, and III.
Affected individuals are colored in black.
Healthy individuals are represented with empty figures.
a) The allele that codes for the dissease must be recessive. We can assume this because
Most individuals in the pedigree are healthy. Only two are affected.Carriers are not affected.No, the allele is not dominant. It is recessive. We can see this because most individuals are not affected, and heterozygous individuals are not affected either.
b) Because of the pattern in which affected individuals appear, we can assume the gene is located in a sex chromosome and it is an X-linked gene.
We can see that only males are affected. If it was an autosomal gene, affected males should be homozygous. If this was the case, they should die. Affected males carry only one copy of the recessive allele. They express the dissease but they do not die. Homozygous females die. Heterozygous females do not express the affection.The gene is sex-linked. It is transmitted in the X chromosome and only males express the affection.
c) Assuming
+ is the dominant allele- is the recessive alleleX-linked geneI1: X+X+ or X+X-
I2: X-Y
I3: X+X+ or X+X-
I4: X+Y
II5 and II10: X+X+ or X+X-
II6 and II7: X+Y
II8: X+X-
II9 and II11: X+Y
III12: X+X+ or X+X-
III13: X+Y
III14: X-Y
Individual II8 is a heterozygous female, X+X-.Individuals III13 is a healthy male, X+Y.Individuals III14 is an affected male, X-Y.You can learn more about pedigrees at
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What information did you include in your answer?
Check all that apply.
the definition of theory
the definition of hypothesis
a reference to repeated experimentation
when a hypothesis is tested
an example of a theory, such as the cell
theory
a connection between the definitions of
theory and hypothesis
I characterized the theory as a well-supported clarification and the hypothesis as a proposed clarification for testing. I emphasized rehashed experimentation and gave a case of the cell hypothesis.
What is the information I included in my answerBased on the given alternatives, the data included in my answer include:
The definition of theory.The definition of hypothesis.A reference to rehashed experimentation.When a hypothesis is tried.A case of a theory, such as the cell theory.An association between the definitions of theory and hypothesis.I gave the definitions of hypothesis and theory, clarifying that a hypothesis could be a well-substantiated explanation for a marvel whereas a theory may be a proposed clarification to be tried. I said the importance of rehashed experimentation in approving or negating theories.
I too insinuated the method of testing the hypothesis. Furthermore, I advertised the case of the cell theory as a logical hypothesis. In conclusion, I associated the definitions of hypothesis and theory, highlighting their relationship within the logical strategy where hypotheses are proposed and tried to back or challenge existing hypotheses.
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Identify the tissue sample and answering the following questions
The organism has different types of Connective tissues providing support and connectin to organs and other structures. 1) Connective tissue. 2) Dense irregular connective tissue.
What is the connective tissue?The connective tissue, also known as support tissue, supports and connects all the other tissues and organs in the body. Every substance exchange between epitheliums, muscles, nerves, and the vascular system must be done with the connective tissue as an intermediate.
According to its specialization, there are different kinds of connective tissue, such as cartilage, blood, bony tissue, or lymphatic tissue, among others. Each type of connective tissue has its own cell type according to its functions. Cellular types, fibers, and aqueous medium appear in different amounts in different parts of the organism.
The connective tissue is composed of cells that are very separated from each other because of the abundant extracellular matrix, which is produced by fibroblasts, a predominant cell population. The extracellular matrix has fibrillar proteins of different natures such as collagen, fibrillin, and elastin that determine tension properties. There are also adessive proteins such as fibronectin and laminin. All of these proteins are included in a medium that contains water, salts, GAGs, proteoglycans, glycoproteins, and other macromolecules that confer turgidity and facilitate diffusion. The properties of this matrix in different connective tissues mark the difference between each other.
The connective tissue originates in the mesoderm, which in the early stages of development, differentiates from an embryonary connective tissue called mesenchyme.
1) Connective tissue
2) Dense irregular connective tissue
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What is the allele that determines the phenotype with respect to a particular gene?
A. Dominant allele
B. Recessive allele
C. Deleterious allele
D. Dominant trait
The allele that determines the phenotype with respect to a particular gene is the option A. dominant allele.
In genetics, alleles are alternate forms of a gene that occupy the same position (locus) on a chromosome. Each individual inherits two alleles for each gene, one from each parent. The interaction between these alleles determines the expression of the gene and ultimately the phenotype, which refers to the observable characteristics or traits of an organism.
A dominant allele is one that exerts its effect even if there is only one copy present in the individual's genotype. It masks the effect of the recessive allele, which is only expressed when two copies of the recessive allele are present.
When an individual possesses a dominant allele for a particular gene, it determines the phenotype associated with that gene. This means that the trait associated with the dominant allele will be expressed, regardless of whether the other allele in the pair is dominant or recessive. Therefore, the correct answer is option A.
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Frequency of U2 allele in the population
we have 300+300+50+350=1000 individuals
400 have the u2 gene
that means 40% or a frequency of 0.4
Lab 9: Kingdom Plantae (12 Points) Introduction Plants are defined as multicellular eukaryotes with cell walls made of cellulose. Nearly all of them contain chlorophyll and carry out photosynthesis. Being photoautotrophs, plants can make all their own organic molecules. All they need is energy from light, carbon from carbon dioxide, water, and various elements (like N, P, K, Ca, and Mg). Water can be absorbed into a plant by osmosis, but it can only travel a few cells away from a source. In order to transport water long distances, some groups of plants have specialized tissues (vascular tissue). Plants without vascular tissues must live in wet areas and cannot grow very tall. Consult the plant lecture, slides, and links on Canvas for more information on defining features of plants and groups of plants. Part 1: Comparing major groups of plants Within the plant kingdom, biologists separate plants into four major groups: bryophytes (mosses and llverworts), pteridophytes (ferns), gymnosperms (conifers), and anglosperms (flowering plants). The separations are primarily based on anatomical structures, particularly the ones they use to transport water in their bodies, and on the different ways in which plants reproduce sexually. **What to submit for this activity** Use the information from lectures, the textbook, and any other sources of your choice to fill out the table comparing the four major groups of plants. Submit your completed table as part of what you upload to the Canvas lab assignment for this week. (5 Points) What are one or more examples? Do they have vascular tissue (xylem and phloem)? Which part of the life cycle/generation is more dominant in structure? (Gametophyte or Sporophyte?) What other characteristics can help you identify this group? (List at least 2 or more) Mosses and liverworts (Bryophytes) Ferns and relatives (Pteridophytes) Conifers (Gymnosperms) Flowering plants (Angiosperms)
Mosses and liverworts (Bryophytes):
- Example: Mosses (e.g., Sphagnum moss) and liverworts (e.g., Marchantia)
- Vascular tissue: No true vascular tissue (lack xylem and phloem)
- Dominant structure: Gametophyte generation is more dominant in structure
- Other characteristics:
1. Lack of true roots, stems, and leaves; instead, they have rhizoids.
2. Reproduce via spores and require water for fertilization.
Ferns and relatives (Pteridophytes):
- Example: Ferns (e.g., Polypodium) and horsetails (e.g., Equisetum)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Reproduce via spores produced in structures called sporangia.
2. Exhibit well-developed leaves called fronds and often have underground stems (rhizomes).
Conifers (Gymnosperms):
- Example: Conifers such as pine trees (e.g., Pinus) and spruces (e.g., Picea)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce seeds in cones.
2. Typically have needle-like or scale-like leaves and are often evergreen.
Flowering plants (Angiosperms):
- Example: Flowering plants include roses (e.g., Rosa), sunflowers (e.g., Helianthus), and oak trees (e.g., Quercus)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce flowers for sexual reproduction.
2. Seeds are enclosed within fruits.
3. Have a wide range of forms, from small herbs to large trees.
Please note that the examples provided are just a few representatives of each plant group, and there are many more species within each group.Mosses and liverworts (Bryophytes):
- Example: Mosses (e.g., Sphagnum moss) and liverworts (e.g., Marchantia)
- Vascular tissue: No true vascular tissue (lack xylem and phloem)
- Dominant structure: Gametophyte generation is more dominant in structure
- Other characteristics:
1. Lack of true roots, stems, and leaves; instead, they have rhizoids.
2. Reproduce via spores and require water for fertilization.
Ferns and relatives (Pteridophytes):
- Example: Ferns (e.g., Polypodium) and horsetails (e.g., Equisetum)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Reproduce via spores produced in structures called sporangia.
2. Exhibit well-developed leaves called fronds and often have underground stems (rhizomes).
Conifers (Gymnosperms):
- Example: Conifers such as pine trees (e.g., Pinus) and spruces (e.g., Picea)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce seeds in cones.
2. Typically have needle-like or scale-like leaves and are often evergreen.
Flowering plants (Angiosperms):
- Example: Flowering plants include roses (e.g., Rosa), sunflowers (e.g., Helianthus), and oak trees (e.g., Quercus)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce flowers for sexual reproduction.
2. Seeds are enclosed within fruits.
3. Have a wide range of forms, from small herbs to large trees.
Please note that the examples provided are just a few representatives of each plant group, and there are many more species within each group.
fill the attachment
1) A deficiency disease is caused by the absence of a food nutrient
2) Deficiency of vitamin D causes rickets
3) Deficiency of vitamin C can lead to a condition called scurvy.
4) Deficiency of iron leads to anemia
What are food nutrients?Carbohydrates has glucose as the small molecules and they give energy to the body. It can be gotten from rice.
Proteins have amino acids as the building blocks and they help to repair the worn out tissues. They can be found in legumes.
Fats are composed of fatty acids and they help in the insulation of the body. It can be obtained from margarine.
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Which option describes a step in designing an experimental investigation?
O A. Identifying the variables that will be controlled for all experimental groups B. Writing a procedure that prevents other scientists from repeating the results C. Making sure that the hypothesis will be supported and not refuted O D. Collecting each piece of data in a different way so that there is more variety
Answer:
a
Explanation:
because i studied like tht
Answer:
A. identifying the variables that will be controlled for all experimental groups
Explanation:
it is ;)
Help me please I don’t understand what to do here.
What is the Calvin cycle?
A series of light dependent reactions
A series of light independent reactions.
Light dependent and light independent reactions
Another name for the production of chloroplasts.
The Calvin cycle is a series of light-independent reactions that occur in the chloroplasts of plants.
These reactions are responsible for converting carbon dioxide into glucose, which is the main source of energy for the plant. The Calvin cycle is also known as the Calvin-Benson cycle or the C3 cycle. The cycle consists of three main stages: carbon fixation, reduction, and regeneration. During carbon fixation, an enzyme called Rubisco combines carbon dioxide with a five-carbon molecule called RuBP. This results in the formation of two three-carbon molecules known as PGA. In the reduction stage, ATP and NADPH, which are produced during the light-dependent reactions, are used to convert PGA into G3P. Some of the G3P molecules are used to regenerate RuBP, while others are used to produce glucose and other organic compounds.For more questions on Calvin's cycle
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How can fire both benefit and threaten forest ecosystems?
Fire can both benefit and threaten forest ecosystems depending on the frequency, intensity, and type of fire.
What is forest ecosystem?In some forest ecosystems, periodic fires are essential for the survival and growth of certain plant species. Fires can stimulate the germination of certain seeds, promote the growth of new vegetation, and clear out dead plant material that can hinder the growth of new plants.
However, when fires occur too frequently or are too intense, they can become a threat to forest ecosystems. Intense fires can cause significant damage to vegetation, soil, and wildlife habitats. They can also lead to erosion and soil degradation, which can make it difficult for vegetation to grow back.
Moreover, human-caused fires can pose a serious threat to forest ecosystems. In many cases, fires are started accidentally by people, or intentionally by individuals who want to clear land for agriculture or development. These fires can quickly spread out of control and cause significant damage to forest ecosystems.
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A Potassium-Argon
(K-Ar) age measures which of the following
the time since last cooling below the gas retention temperature - Potassium is the gas
the time since last cooling below the gas retention temperature - Argon is the gas
the time since the tree containing the Potassium died
the time since crystallization of a mineral containing Potassium
Brouiquc
A Potassium-Argon (K-Ar) age measurement is a dating technique used in geochronology to determine the age of rocks and minerals. It relies on the radioactive decay of potassium-40 (K-40) into argon-40 (Ar-40) over time. The correct answer to the given question is (D) The time since crystallization of a mineral containing Potassium.
When a mineral containing potassium crystallizes, it starts accumulating K-40. Over time, K-40 decays into Ar-40. By measuring the ratio of K-40 to Ar-40 in a mineral sample, scientists can estimate the time elapsed since the mineral's crystallization.
The process of crystallization occurs when molten rock, or magma, cools and solidifies. During this crystallization process, minerals with potassium incorporate the K-40 isotope into their crystal lattice. From that point forward, the K-40 atoms in the mineral begin to decay, producing Ar-40 as a byproduct. By comparing the amounts of K-40 and Ar-40 in a mineral, scientists can calculate the age of the mineral.
It is important to note that the K-Ar dating method is most suitable for dating minerals that have formed from volcanic activity or have been subjected to high temperatures. The technique is commonly used to date rocks and minerals in the range of thousands to billions of years old.
In summary, a Potassium-Argon age measurement determines the time since the crystallization of a mineral containing potassium. It relies on the accumulation of potassium-40 and the subsequent decay into argon-40 in the mineral over time. This dating method provides valuable insights into the age and geological history of rocks and minerals.
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What is the law of conservation of energy?
Answer:
energy can neither be created nor destroyed.
Explanation:
energy can neither be created nor destroyed. only converted from one form of energy to another.
HElP PLEASE
Which best describes the effect on another population in the food web below if nearly all of the field mice are removed?
grass
black-footed
ferrets
field mice
seeds
lynx
The number of lynx will increase.
The amount of grass will decrease.
The amount of seeds will increase.
The number of ferrets will decrease.
Answer:
The number of ferrets will decrease.
Explanation:
In communities, organisms occupy specific niches. These gradually evolve over time as these organisms interact with their geosphere. In each community, organisms maintain specific relationships among each other; these can be depicted within a food web.
Black-footed ferrets are typically found within prairies, and consume other small animals such as rodents. The removal of mice reduces their food supply, limiting their chance for survival. Thus, the ferret population would decrease due to migration, or death.
Where are the A, B and RH antigens located
Answer: The A, B, and Rh antigens are located on the surface of red blood cells.
Explanation:
8 Sediment samples A through D below have the same volume and packing, but contain different percentages
of various particle sizes.
Sample A: 75% clay and 25% silt
Sample B: 25% clay and 75% sand
Sample C: 50% pebbles and 50% sand
Sample D: 50% pebbles and 50% cobbles
Which sample most likely has the greatest permeability?
(1) A (2) B (3) C (4) D
When sedimenting samples A through D below have the same volume and packing, but contain different percentages the most likely sample with greatest permeability is Sample D: 50% pebbles and 50% cobbles.
What exactly is sediment sampling?Sediment measurement entails measuring the water-sediment mixture to ascertain the mean suspended sediment concentration, particle size distribution, specific gravity, temperature, and other physical and chemical characteristics of the transported solids.Sediment sampling is the process of removing marine, brackish, or freshwater sediments from the seafloor using either professional divers or a grab device, such as the PONAR Grab, so that they can be examined in a licensed laboratory. Grain size, moisture, and pH are typically evaluated, along with metals, PAHs, and PCBs.For more information on sediment sampling kindly visit to
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A substance has a volume of 20 ml and a density of 2.5 g/ml.What is it mass? A:0.125g ,B:8g, c:22.5g or D:50g
Answer:
D. 50g
volume : 20ml
= 0.02 l
density : 2.5g/ml
= 2500 g/l
therefore, p=m/v
m= p x v
= 2500 x 0.02
= 50
In this lab you will be utilizing the scientific method in order to adress the following question:
Can humans determine the color of Skittles by taste alone
Answer:
yes because lemon skittles are bussingly bussin
Explanation:
Genetics Problem Solving Chapter 25
The problem involved a cross between homozygous purple and homozygous white pea plants, where purple is dominant. The Punnett square showed that the probability of the offspring having purple flowers is 3/4 or 0.75, which is a 75% chance.
The genotype of the homozygous purple-flowered pea plant is PP and the genotype of the homozygous white-flowered pea plant is pp. When these two plants are crossed, all of the F1 generation plants will be heterozygous (Pp) for flower color because they inherit one allele from each parent.
To determine the probability of the offspring having purple flowers, we can use a Punnett square
Each box represents a possible genotype combination of the offspring. The probability of an offspring inheriting the dominant P allele is 3/4, while the probability of inheriting the recessive p allele is 1/4. Therefore, the probability of the offspring having purple flowers is 3/4 or 0.75.
Thus, there is a 75% chance that the offspring of this cross will have purple flowers.
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--The given question is incomplete, the complete question is given
" Genetics Problem Solving Chapter 25
In pea plants, flower color is determined by a single gene with two alleles: the dominant allele for purple flowers (P) and the recessive allele for white flowers (p). A homozygous purple-flowered pea plant is crossed with a homozygous white-flowered pea plant.
What is the probability that the offspring will have purple flowers?"--
Which function is linear?
The function that is linear is (a) x/8-2.
What is function?In mathematics, a function is a rule that maps each element (input) from a set called the domain to a unique element (output) from a set called the range. A function can be thought of as a machine that takes an input and produces an output based on the given rule. The input variable of a function is typically denoted by a symbol such as x, and the output variable is denoted by a symbol such as y. The function itself is denoted by a symbol such as f, and the rule that relates the input and output is usually expressed using algebraic or other mathematical expressions.
Here,
In option (a), the coefficient of x is 1/8, which means that for every 1 unit increase in x, y decreases by 1/8 units. This constant rate of change satisfies the definition of a linear function. To be linear, a function must have a constant rate of change, meaning that as the input variable (x) increases or decreases by a certain amount, the output variable (y) changes by a constant amount.
Options (b), (c), and (d) are not linear functions because they contain a term with x raised to the power of 2 or -1, which causes the rate of change to vary depending on the value of x. Therefore, their rates of change are not constant, and they cannot be linear functions.
To check whether a function is linear, you need to determine whether it satisfies the criteria of a linear function. A linear function is a function that has a constant rate of change, meaning that as x increases by a certain amount, y increases by a consistent multiple of that amount. Mathematically, a linear function can be written in the form:
y = mx + b
where m is the slope (rate of change) of the line, and b is the y-intercept (the point where the line intersects the y-axis).
To check whether a function is linear, you can plot its graph and see if it forms a straight line. If the graph is a straight line, then the function is linear. However, if the graph is curved, then the function is not linear.
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The DNA double helix is antiparallel. This means that the two strands…
Answer:
d
Explanation:
antiparallel is like one strand starts with 5' prime and ends with 3' prime and it's complimentary strand is the the opposite with 3' prime on top and 5' prime down
What is the total amount of carbon removed
from the atmosphere each year by the
ocean and land plants?
Answer:
Carbon gets removed by a number of 65 GtC each year from the ocean and land plants.
Explanation:
Discuss the definition of bioavailability relative to ecotoxicology and pharmacology.
Bioavailability in both ecotoxicology and pharmacology is concerned with the availability and accessibility of substances to organisms or target sites, considering various factors that influence their absorption, distribution, and elimination.
Bioavailability refers to the proportion of a substance that is available to have an effect on an organism, either in ecotoxicology or pharmacology. In ecotoxicology, bioavailability relates to the uptake and availability of contaminants in the environment to organisms.It considers the processes that affect the ability of organisms to absorb, distribute, metabolize, and excrete contaminants. In pharmacology, bioavailability refers to the extent and rate at which a drug reaches its target site and is available to produce a therapeutic effect. It involves factors such as drug absorption, distribution, metabolism, and elimination.For more questions on Bioavailability
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Question 6 of 10
An independent variable is a factor in an experiment that:
A. is manipulated by the scientist.
B. is deliberately kept the same.
C. responds to the test variable.
D. fails to affect the observations.
Answer:is A.is manipulated by the scientist.
Explanation: