The hydrogen bond is responsible for many of the anomalous physical and chemical properties of compounds of N, O, and F. In particular, intermolecular hydrogen bonding is responsible for the high boiling point of water (100 °C) compared to the other group 16 hydrides that have much weakerhydrogen bonds
Explanation:
Therefore, option b is correct.Hydrogen bonding is primarily responsible for the high boiling point of the water. Thus, the correct option is B.
What is Hydrogen bonding?Hydrogen bonding is an interaction which involves a hydrogen atom that is located between a pair of other atoms such as nitrogen, oxygen, and fluorine which have a high affinity for electrons, and such a bond is weaker than an ionic bond or a covalent bond but are stronger than van der Waals forces and dispersion forces.
Hydrogen bonding is primarily responsible for the high boiling point of water solvent. Hydrogen bonding is a strong affinity. Hydrogen bonding is created when a hydrogen atom is bonded to an electronegative atom by approaching a nearby electronegative atom.
Therefore, the correct option is B.
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Newton's 2nd Law is F= ma. Write a problem that gives the mass and the acceleration of an object and asks us to find the force.
Answer:
An object having a mass of 20kg is pushed by John and it then accelerates down the inclined plane at a rate of 0.5m/s². Find the force applied on the object.
Explanation:
Newton's Second Law of Motion states that the acceleration of a physical object is directly proportional to the net force acting on the physical object and inversely proportional to its mass.
For example, an object having a mass of 20kg is pushed by John and it then accelerates down the inclined plane at a rate of 0.5m/s². Find the force applied on the object.
Given the following data;
Mass = 20kg
Acceleration = 0.5m/s²
To find the force;
Force = mass * acceleration
Substituting into the equation, we have;
Force = 20 * 0.5
Force = 10 Newton.
Maintaining blood glucose levels is an important homeostatic activity of the body, not specifically because every cell of the body must have glucose but primarily because the brain relies on glucose for its metabolism.
a. True
b. False
Answer:
a. True.
Explanation:
Even though the cells in our body rely on glucose as a source of energy, they can replace glucose's energy with lipids or proteins' energy. In the brain's case, this is not possible since the blood-brain barrier, which is a highly selective barrier between the blood and the extracellular fluid in the central nervous system, allows the passage of glucose as the only source of energy. This is why maintaining the correct levels of glucose is crucial for the metabolism in the brain.
8. a) How are the events in the menstrual cycle triggered by the body? (1 point)
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There is a supply of undeveloped eggs in the ovaries. At the beginning of the menstrual cycle, between 6 and 12 undeveloped eggs in the ovaries start to mature. A layer of cells grows around them. At around day 5 of the menstrual cycle, the biggest follicle will continue to grow for another week. At around day 14, the follicle breaks apart, and the wall of the ovary ruptures. The egg is released from the ovary into the fallopian tube, where it can get fertilized. This process is called ovulation. The uterus also changes during the course of the menstrual cycle. It has a lining of cells on the inside, kind of like a cushion with a lot of blood vessels. Fallopian tubes connect the ovaries and the uterus. The uterine cycle begins with menstruation. This is the process through which most of the lining and blood from the last uterine cycle are cleared out of the uterus to prepare for a new attempt at pregnancy. Starting at around day 5, the lining starts to grow. It builds back up to prepare a place for the egg to grow if it gets fertilized. After ovulation, the egg reaches the oviduct. If sperm cells have entered the vagina during intercourse, fertilization may occur at any time in the next two weeks. Then the fertilized egg will move into the uterus and implant itself into the lining, where development will begin.
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The events in the menstrual cycle are primarily triggered by hormonal signals from the body. The menstrual cycle is a complex process regulated by the interplay of hormones produced by the hypothalamus, pituitary gland, and ovaries.
1. Hypothalamus: The hypothalamus, a region of the brain, releases gonadotropin-releasing hormone (GnRH) in a pulsatile manner. GnRH stimulates the pituitary gland.
2. Pituitary gland: In response to GnRH, the pituitary gland secretes two important hormones: follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
3. Follicular phase: At the beginning of the menstrual cycle, FSH stimulates the growth and maturation of ovarian follicles, which contain the developing eggs (oocytes).
As the follicles grow, they produce estrogen, a hormone that helps prepare the uterus for a possible pregnancy.
4. Ovulation: As the estrogen levels rise, it triggers a surge in LH production by the pituitary gland. The LH surge leads to the release of a mature egg from the ovary, a process called ovulation.
5. Luteal phase: After ovulation, the ruptured follicle in the ovary transforms into a structure called the corpus luteum. The corpus luteum produces progesterone, which prepares the uterus for potential implantation of a fertilized egg.
6. Menstruation: If pregnancy does not occur, the levels of estrogen and progesterone decline. This drop in hormone levels triggers the shedding of the uterine lining, resulting in menstrual bleeding.
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True or False: There are only a couple of different ecosystems on Earth.
Answer:
False
Explanation:
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment. There are so many different types of communities on Earth!
What is it called when pairs of homologous chromosomes fail to SEPARATE normally
during MEIOSIS.
Answer: Nondisjunction occurs when homologous chromosomes or sister chromatids fail to separate during meiosis, resulting in an abnormal chromosome number. Nondisjunction may occur during meiosis I or meiosis II.
Explanation:
2 cells will have the normal haploid number of chromosomes. Additionally, one cell will have an extra chromosome and one will be missing a chromosome
Cinder cones have steeper flanks than shield volcanoes, but cinder cones occupy the same area of land as shield volcanoes.
a. True
b. False
Answer:trueeeee
Explanation:
In some bunnies, the gene for fur color is controlled by condominance. The allele for gray color is G and the allele white color is W. The heterozygous phenotype results in a gray and white bunny/ What is the genotype for gray bunnies? what is the genotype for white bunnies? what is the genotype for gray and white bunnies?
Answer:
Genotype gray bunnies: GG
Genotype white bunnies: WW
Genotype gray and white bunnies: GW
Explanation:
In diploid species (2n), organisms receive one gene copy (allele) from each parent. Codominance is a relationship that occurs when both alleles of the same gene show dominance. In consequence, the expression of both alleles in heterozygous individuals results in a new phenotype. In this example, the expression of G and W alleles results in a gray and white phenotype. Examples of codominance include individuals with type AB blood group in humans or the roan coat color in horses.
Answer:
Genotype gray bunnies: GG
Genotype white bunnies: WW
Genotype gray and white bunnies: GW
Explanation:
In diploid species (2n), organisms receive one gene copy (allele) from each parent. Codominance is a relationship that occurs when both alleles of the same gene show dominance. In consequence, the expression of both alleles in heterozygous individuals results in a new phenotype. In this example, the expression of G and W alleles results in a gray and white phenotype. Examples of codominance include individuals with type AB blood group in humans or the roan coat color in horses.
The relationship between a carnivore and an herbivore can be stated as
A
parasite and host
B
predator and prey
C
prey and predator
D
scavenger and parasite
The relationship between a carnivore and an herbivore can be stated as B predator and prey.
What are the predator and prey ecological relationships?The predator and prey ecological relationships can be defined as ecological associations in which an organism serves as food for others in the food web, thereby leading to the homeostasis of the whole system in the food chain.
Therefore, with this data, we can see that predator and prey ecological relationships are based on different trophic levels where one organism situates below in the food chain is the prey of another.
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Ecologists are interested in quantifying different kinds of biodiversity. In each of the two studies outlined here, which kind of biodiversity are ecologists studying?
Ecologists establish 20 small areas, called plots, randomly scattered across a California grassland. They count the number of different plant species present in each plot.
By noting how many species appear in the plots, the ecologists are able to estimate the number of species in the entire grassland.
a. Genetic diversity
b. Functional diversity
c.Ecosystem diversity
d. Species diversity
Ecologists draw blood samples from basking shark (Cetorhinus maximus) specimens caught from a single large population in the Atlantic Ocean. From each blood sample, the ecologists isolate DNA. Comparing several DNA sequences across the individuals that were sampled, the ecologists are able to estimate the variation in DNA sequences in the entire population.
a. Genetic diversity
b. Ecosystem diversity
c. Species diversity
d. Functional diversity
One way to think about the importance of biodiversity is simply to think in terms of natural capital: the roles that genes, species, ecosystems, and ecological processes play in supporting human society and a healthy biosphere. Which of the following are benefits provided by biodiversity?
a. Controlling pests
b. Providing medically useful chemicals
c. Keeping topsoil fertile
d. Eliminating the ozone hole
Answer:
1. --> d. Species diversity
2. --> a. Genetic diversity
3. --> a. Controlling pests, b. Providing medically useful chemicals , and c. Keeping topsoil fertile
Explanation:
1) Kinds of biodiversity
Genetic diversity: Among species. Refers to genes variability among species that differentiate them and allows them to adapt to different environments. The genetic charge of one species differs from other species´ genetic charge. Species diversity: Refers to the diversity of species, which can be measured by: Species richness: Number of species in a defined unit sample, Species abundance: Describe the distribution of the species abundance.Species richness is the number of species present in a sample, within a community, habitat or microhabitat, ecosystem, landscape, region, or any well-defined spatial unit. It is simple and easy to interpret. It is the simplest and straightforward measure of biodiversity. It is just a count of species, with no need for abundance data. In some cases, this can be the cause of criticism, as it ignores information about the species-abundance distribution.
2) Ecosystem services
When talking about ecosystem services, we are referring to the benefits that ecosystems provide us. There are four types of ecosystem services:
Provision or supply:These are the products obtained by nature to be used or consumed, directly or with previous processing. Among them, we might mention food, clear fresh-water, fertile soils, geotic materials, raw materials (that can be used for clothing, construction), renewable fuels, biochemical compounds, pharmacological/medicinal resources, among others.
Regulation:Refers to ecological processes that improve life. Among others, we might mention climate regulation, CO² absorption, water purification, air purification, erosion control, natural disaster avoidance such as flooding, soil fertility maintenance, waste recycling, pests/plagues control, etc.
Cultural:Refers to not the material benefits. Ecosystems also provide a recreational place or area to spend time, to learn, provides a spiritual/religious space, is a source of inspiration, it is considered to be cultural patrimony, and the source of scientific knowledge.
4. The lowest level of organization in living
organisms isA. cellB. system C. tissue D. organ
Explanation:
a. cell . . . . . . . .......
Answer:
cell
Explanation:
What is a limiting factor of a desert frog that requires rocks for shelter & insects for food?
a. drought
b. scarcity of rocks
c. abundance of insects
d. shelter
e. rain
Answer:
D and E
Explanation:
they both sound right
How contipedes differ from millipedes
Answer:
Millipedes have two sets of legs per segment positioned directly under their body, while centipedes have one set of legs per segment positioned on the side of their body.
Here are a few tips to spot the differences: Millipedes have two sets of legs per segment positioned directly under their body. Centipedes have one set of legs per segment positioned on the side of their body. ... Millipedes feast on decomposing plants.
Explanation:
#carryonlearningYou have successfully engineered E. coli to make human insulin by adding a transgene that has an E. coli promoter and the coding sequence of human insulin. You try to generate a new strain that would make a lot more insulin by making one with 10 copies of the transgene. Although your genetic engineering is successful, your new strain doesn't make much more insulin. What do you think could have gone wrong
Answer:are you asking a question?
Explanation:
ples HEL MEEEEEEEAndy learns in school that plants grow best when they receive an optimal range of water, sunlight, and nutrients. He decides to do an experiment with bean plants to test this idea. Over the course of a month, he is planning on giving five bean plants different amounts of water. His watering schedule is outlined below. Amount of Water Plant Every Week A O mL B 10 mL с C 100 mL D 1.000 mL E 10,000 mL What will be the most likely result of his experiment?
Answer:
plant and e will die
Explanation:
The Law of Conservation of energy states what?
a. energy can always be created and destroyed
b. energy can be created but not destroyed
c. energy can never be created but can be destroyed
d. energy can never be created or destroyed
Answer:
D hope it helps for your quiz and goodluck
Explanation:
d-energy can neither be created nor destroyed but it can be chanfed from one form to another.
What is the probability that the son is colorblind?
Answer:
I do believe 50 percent
Explanation:
You get traits from both mom and dad
compares and contrasts transformation, transduction, and conjugation
Answer:
In transformation, a bacterium takes up a piece of DNA floating in its environment. In transduction, DNA is accidentally moved from one bacterium to another by a virus. In conjugation, DNA is transferred between bacteria through a tube between cells.
Explanation:
7. Explain how the equations for photosynthesis and cellular respiration compare.
Answer: In Photosynthesis, carbon dioxide and water is yielded to glucose and oxygen. In respiration, glucose and oxygen is yielded to carbon dioxide and water. C6H12O6 (glucose) + O2(oxygen) → CO2(Carbon Dioxide) + H2O(water) + ATP energy. The products of one process are the reactants of the other. Notice that the equation for cellular respiration is the direct opposite of photosynthesis: Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O. Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O.
Explanation:
What are examples of carbohydrates rich foods
Answer:
Which Foods Have Carbs?
Dairy. Milk, yogurt, and ice cream.
Fruit. Whole fruit and fruit juice.
Grains. Bread, rice, crackers, and cereal.
Legumes. Beans and other plant-based proteins.
Starchy Vegetables. Potatoes and corn.
Sugary Sweets. Limit these! Soda, candy, cookies, and other desserts.
Examples of carbohydrate-rich foods include bread, pasta, rice, potatoes, fruits, sugary snacks, and sweets.
What are carbohydrates rich foods?Carbohydrates are one of the three main macronutrients found in food and are a primary source of energy for the body. Carbohydrates can be found in many different foods, including:
Grains: bread, pasta, rice, cereal, oatmeal, etc.Starchy vegetables: potatoes, sweet potatoes, corn, etc.Fruits: apples, bananas, grapes, oranges, etc.Sugary snacks and sweets: candy, cakes, cookies, soda, etc.It is important to note that not all carbohydrates are created equal. Simple carbohydrates, such as those found in sugary snacks and sweets, can cause spikes in blood sugar levels and can lead to weight gain if consumed in excess. On the other hand, complex carbohydrates, such as those found in whole grains and starchy vegetables, are a more slowly digested form of energy and are a healthier option for providing energy for the body.
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What is the identity of the planets?
A:
B:
C:
D:
Answer:
Explanation:
Distance from Sun (km)
778,600,000
4,495,100,000
1,433,500,000
2,872,500,000
Answer:
A: Jupiter
B: Neptune
C: Saturn
D: Uranus
Explanation:
Hope this helps! Have a great day!! ❤
In prokaryotes, certain proteins act to regulate genes by binding to DNA. What could be the effect of these binding proteins?
Answer:
increase/reduced transcription of those genes
Explanation:
protein binds either allowing or preventing transcription
The bananas eaten today are not the bananas that have always been eaten. In the early 1900's a different banana called the "Gros Michel" or "Big Mike' was the primary banana sported By 1950 a fungus had wiped outalmost all of the banana plantations that used the Big Mike and crops had to be changed. Bananas that are available throughout stores worldwide are all clones of the Cavendish banana Cloning is a process where the DNAfrom one organism is identically replicated and used to create a genetically identical organism Some plantations are starting to report a fungus impacting their Cavendish crops the same way the Big Mike crops wereImpacted. What is likely outcome for Cavendish bananas since most of the crops are clones?
Answer: d
Explanation:
which of the following statements is true? hydroelectric power does not damage the environment. waste from nuclear power plants is dangerous to human health thermal pollution decrease as the temperature of aquatic ecosystems oil sinks in water which me most spills sink before harming plants and animals
Answer:
waste from nuclear power plant is dangerous to human health
Answer:
B) Waste from nuclear power plants is dangerous to human health.
Explanation:
Its was right on Odyssy ware
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How are coral reefs similar to tropical rainforests? Both are home to just a few types of rare animals. Both can easily be restored if they are destroyed. Both support a huge quantity and variety of organisms. Both are found in all types of climates around the world.
Answer:
c
Explanation:
Answer:
its C
Explanation:
i took the test on edge 2021
Use the forked-line method to solve this problem (SHOW YOUR WORK): In cucumbers, there are 3 genetic traits, as follows: dull fruit is dominant to glossy fruit orange fruit color is dominant to cream fruit color bitter cotyledons are dominant to nonbitter cotyledons You cross a plant that is heterozygous for all 3 genes to another plant that is heterozygous for dull fruit but has cream fruit color and nonbitter cotyledons. Among the next generation, what proportion of the offspring will be a) dull, orange, bitter b) glossy, cream, nonbitter c) heterozygous for all 3 genes (HINT: it's not the same answer as a) above
Answer:
a) dull, orange, bitter ----> 3/16 D- Oo Bb
b) glossy, cream, nonbitter ---> 1/16 dd oo bb
c) heterozygous for all 3 genes ---> 2/16 Dd Oo Bb
Explanation:
Available data:
dull fruit (D-) is dominant to glossy fruit (dd)orange fruit color (O-) is dominant to cream fruit color (oo)bitter cotyledons (B-) are dominant to non-bitter cotyledons (bb)Cross: a plant heterozygous for all 3 genes with a plant that is heterozygous for dull fruit but has cream fruit color and non-bitter cotyledons.Parentals) Dd Oo Bb x Dd oo bb
To get the proportions of the offspring using the forked-line method, we must analyze each gene separately.
D gene:
Parentals) Dd x Dd
Gametes ) D d D d
Punnett square) D d
D DD Dd
d dD dd
F1) 1/4 DD
2/4 Dd
1/4 dd
O gene:
Parentals) Oo x oo
Gametes) O o o o
Punnett square) O o
o Oo oo
o Oo oo
F1) 1/2 Oo
1/2 oo
B gene:
Parentals) Bb x bb
Gametes) B b b b
Punnett square) B b
b Bb bb
b Bb bb
F1) 1/2 Bb
1/2 bb
What proportion of the offspring will be
a) dull, orange, bitter
(1/4 DD + 2/4 Dd) x 1/2 Oo x 1/2 Bb = 3/4 D- x 1/2 Oo x 1/2 Bb
3/16 D- Oo Bb
b) glossy, cream, nonbitter
1/4 dd x 1/2 oo x 1/2 bb
1/16 dd oo bb
c) heterozygous for all 3 genes
2/4 Dd x 1/2 Oo x 1/2 Bb
2/16 Dd Oo Bb
List two advantages and two disadvantages of a having a selective permeable membrane.
Pls help
How are fern sporophytes and moss sporophytes different?
Answer
The main difference between mosses and ferns is the presence or absence of a vascular system.
Explanation:
The gametophyte is prominent is mosses, but the sporophyte is prominent in ferns. The sporophyte of ferns is differentiated into true leaves, stem, and roots. In contrast, mosses lack true leaves, stem or roots.
What is a phenotype that is influenced by the environment called?
In comparing the behavior of a 10,000 and 45,000 molecular weight protein using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and gel filtration column chromatography, which of the following statements is most likely to be true. Assume other proteins are single polypeptide chains with no disulfide bonds.
a. The smaller protein will migrate (move) faster relative to the larger protein in SDS-PAGE but slower in gel filtration.
b. The smaller protein will migrate (move) slower relative to the larger protein in both SDS-PAGE and gel filtration
c. The smaller protein will migrate (move) faster relative to the larger protein in both SDS-PAGE and gel filtration
d. The smaller protein will migrate slower (move) relative to the larger protein in SDS-PAGE but faster in gel filtration
Answer:
a. The smaller protein will migrate (move) faster relative to the larger protein in SDS-PAGE but slower in gel filtration.
Explanation:
Gel filtration chromatography is a technique of chromatography in which particles facilitate separation based on molecular size. The larger protein come out of the column and form gel permeation chromatograph. The smaller proteins move faster to migrate from the column.
The poles of a solenoid can be reversed by