Answer:
D
Explanation
no need to thank me
Will the hammer or the feather reach the ground first? 30 points quick
Answer:
Hammer
Explanation:
Feather is slowed down by air resistance. Hammer reaches first because of drag. Air resistance increases as it falls.
Hope the helps!
--Applepi101
Answer:
hammer
Explanation:
beacuse its heaveir
an otto hemp variety with the genotype rrbb is crossed with a kush hemp variety rrbb (given that rr is homozygous resistance to mildew, bb is homozygous large buds). what percent of fraction of the offsprings would have large buds and resistant to mildew?
75% of offspring will have both large buds and resistance to mildew. in the offspring's genotypic ratio, the dominant and recessive traits are in a 1:2:1 ratio.
The parents are Otto hemp variety with genotype rrbb and Kush hemp variety with genotype rrbb. rr represents homozygous resistance to mildew while bb represents homozygous large buds. Cross between two heterozygous (F1) plants produces offspring with a genotypic ratio of 1:2:1 for homozygous dominant: heterozygous: homozygous recessive phenotypes. In other words, in the offspring's genotypic ratio, the dominant and recessive traits are in a 1:2:1 ratio. For each trait, homozygous and heterozygous genotypes are present.In this case, R represents resistance to mildew and B represents large buds.
Since rr is homozygous for resistance to mildew and bb is homozygous for large buds, R and B are the dominant alleles, respectively.The genotypic ratio of offspring from the F1 heterozygous parents is 1:2:1, which means there is a 1:2:1 ratio of homozygous dominant to heterozygous to homozygous recessive genotypes. rrbb (homozygous for both recessive alleles) is the only genotype that will not produce large buds and resistance to mildew in offspring. The offspring's genotypes will be Rrbb, rrBb, RrBb, and RRbb, with phenotypic ratios of 1:1:2:0, respectively.
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PLEASE ANSWER QUICKLY
Which characteristic is shared by all mollusks and echinoderms?
live only in salt water
lack a backbone
use tube feet to move
have an open circulatory system
Answer:
have an open circlitory system
Explanation:
Answer:
D) have an open circulatory systemExplanation:
Hope this helps!
the evolution of the house fly body plan was the result of several evolutionary events, which may have included organisms with the following characteristics given here in no particular order: organism 1 - 3 body segments, with a head organism 2 - 3 body segments, with a head, and wings organism 3 - many body segments, with a head organism 4 - no body segmentation, no head organism 5 - no body segmentation, with a head question: who would you consider to be the outgroup if you made a clade with organisms having these characteristics?
In considering the characteristics given, organism 4 - no body segmentation, no head - would be the most basal or outgroup.
This is because it lacks the defining characteristics of the other organisms, namely body segmentation and/or a head. In evolutionary terms, the presence of body segmentation and a distinct head are considered more advanced or derived characteristics that have evolved from simpler body plans. Organism 5 - no body segmentation, with a head - could be considered more derived than organism 4, but it still lacks body segmentation, which is a more fundamental characteristic. Organisms 1, 2, and 3 all have body segmentation and a head, but differ in the number of body segments and the presence of wings. They could be considered part of a clade that has evolved from the more basal organism 4. Overall, the evolution of the house fly body plan was likely the result of a complex series of evolutionary events involving multiple organisms and adaptations.
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What do we call a group of cells that have similar structure and function.
Answer: tissue
Explanation:
Answer:
TISSUE Tissue is a group of cells that have similar structure and that function together as a unit.I WILL GIVE BRAINLIEST. <33 PLEASE HELP
The nervous system is one system among several in the human body. In order to function, does the nervous system depend on other systems such as the muscular system or the respiratory system? Conversely, do these systems depend on the nervous system? Explain your reasoning for each answer.
Answer:
The nervous system takes in information through our senses, processes the information and triggers reactions, such as making your muscles move or causing you to feel pain. For example, if you touch a hot plate, you reflexively pull back your hand and your nerves simultaneously send pain signals to your brain.
Explanation:
I hope that helps
Which two particles add to make the mass number?
a. protons
b. neutrons
Answer:
A and B
Explanation:
Which of the following factors does not impact the infiltration rate of
water?
The porosity/permeability of the soil
The water table level
The rate of precipitation
The amount of pollution in a nearby stream
Answer:
The amount of pollution in a nearby stream
Infiltration is the process in which the water seeps into the soil surface. Thus, option B is correct.
What is Infiltration?Infiltration is an important phenomenon that defines percolation of water in the soil. It is important for maintaining the ground water level.
The water seeps down into the soil gradually through capillary action. Infiltration is mostly observed during a rainfall.
Infiltration takes place till the soil accomodates maximum water. Beyond that, infiltration will stop as the soil is said to be saturated with water.
Infiltration is measured in inches per hour. It is the depth of water enters into the soil in an hour.
Infiltration rate is determined by various factors. Soil porosity and texture of the soil is one such important factor for water infiltration.
Porosity of the soil can be deteriorated through human activities. Large pores hinder percolation of water.
Infiltration is also determined by the intensity and duration of precipitation.
Therefore, infiltration is important for increasing the water table for further water storage.
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a researcher has identified a new dna sequence in rabbits that is involved in the transcriptional regulation of sox9, a gene involved in bone development. she notes that this dna region is actually far from the sox9 promoter and only appears to regulate the transcription of sox9 in rabbit bone cells. this dna region is most likely a(n) .
She mentions that this DNA region only appears to control sox9 transcription in rabbit bone cells and is far from the sox9 promoter. this DNA district is no doubt a(n) enhancer.
Enhancers are DNA-regulatory elements that raise transcription levels of a gene or genes beyond what would be normal in the absence of enhancers. By forming chromatin loops, these elements bring the enhancer and target gene closer together from a distance. Other genes with enhancers include the human ß-hemoglobin gene and soybean storage proteins. One significant element of these enhancers is their tissue particularity. The soybean seed is the only place where storage proteins are expressed.
The gene that an enhancer controls can be either upstream or downstream of it. In addition, enhancers have been found to be located in several hundred thousand base pairs either upstream or downstream of the start site, so it is not necessary for them to be close to the transcription initiation site.
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How are the processes of asexual reproduction and sexual reproduction different? Select three options. In both processes, all offspring have identical DNA. They involve a different number of parents. Only one process involves sperm and eggs. Only one process involves meiosis. Only one process involves cell division.
Answer:2,3,4
Explanation:just took the test
Answer:
It’s is 2 3 4
Explanation:
It’s right on edge
Name the process by which the present diversity of plants and animals arose from the earliest and primitive organisms
The process is called evolution, specifically biological or organic evolution.
What is evolution?The process of change in the inherited features of populations of organisms over many generations is called evolution. Genetic diversity, natural selection, mutation, gene flow, and genetic drift are some of the forces that propel it. Biology's foundational idea of evolution is what gives life on Earth its diversity. It examines the relationships between species and the ways in which they have evolved to the various habitats in which they dwell. Charles Darwin and Alfred Russel Wallace initially put forth the theory of evolution in the 19th century, and it has since been backed by an abundance of empirical data from disciplines like genetics, palaeontology, and biogeography.
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Which ion is a found in a glass of water
In a glass of water, the most common ion found is the hydroxide ion (OH-) and the hydrogen ion (H+).
These ions are formed when water molecules dissociate through a process called self-ionization or autoionization.
In a glass of water, several ions can be found, originating from the dissociation of water molecules. The main ions present are hydrogen ions (H+) and hydroxide ions (OH-), resulting from the self-ionization of water.
Water molecules can break apart spontaneously into equal concentrations of H+ and OH- ions through a process called autoionization. This occurs when a water molecule donates a proton (H+) to another water molecule, forming H3O+ (hydronium ion) and OH-.
Additionally, other ions might be present in a glass of water depending on its source. For example, tap water can contain various dissolved ions like calcium (Ca2+), magnesium (Mg2+), sodium (Na+), chloride (Cl-), and bicarbonate (HCO3-). These ions come from minerals and other substances present in the water source, such as groundwater or surface water.
It's worth noting that the specific ion composition of water can vary depending on factors like location, treatment processes, and water source. However, the fundamental ions present in water are H+ and OH- resulting from the autoionization of water molecules.
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physical and psychological factors that play a role in succumbing to body issues
Physical and psychological factors play a crucial role in succumbing to body issues. Body image is a multifaceted phenomenon that is influenced by numerous physical and psychological factors.
Physical factors that play a role in succumbing to body issues: Body weight: Body weight is the most apparent physical factor that affects body image. People with low body weight or obesity are more susceptible to body image concerns. Body Shape: Body shape is another physical factor that impacts body image. People with specific body shapes like pear-shaped or apple-shaped are prone to body image issues. Skin color: Skin color can also have an impact on body image. For instance, people with dark skin may feel inferior or ashamed of their bodies because of societal norms. Psychological factors that play a role in succumbing to body issues: Depression and anxiety: Depression and anxiety are among the most common psychological factors that impact body image. People with depression and anxiety are more likely to experience body dissatisfaction. Low self-esteem: Low self-esteem is another psychological factor that influences body image. People with low self-esteem have negative thoughts about themselves, which can lead to body image issues. Social pressure: Social pressure is a psychological factor that contributes to body image problems. Social pressure from friends, family, or media can lead to unrealistic body image expectations.
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A person's blood pressure varies sinusoidally with each heartbeat. Maxi- mum pressure is when the heart contracts, and is called systolic pressure. Minimum pressure is when the heart relaxes, and is called diastolic pressure. Blood pressure is measured in millimeters of mercury (mmHg). Now, suppose that at a time t seconds after the start of a blood pressure measurement, a person's blood pressure is given by P(t)=18sin((3/2)πt)+100mmHg. (a) What is the person's systolic pressure? (b) What is the person's diastolic pressure? (c) What is the person's number of heartbeats per minute? (d) Write down a function of the form Acos(B(t−C))+D that is identical to P(t). (e) Find the rate at which blood pressure is changing at t=2 seconds in mmHg per second.
The person's systolic pressure is 118 mmHg. (b) The person's diastolic pressure is 82 mmHg. (c) The person's number of heartbeats per minute is 80 bpm. (d) The function of the form Acos.
The rate at which blood pressure is changing at t = 2 seconds in mmHg per second is approximately −40.849 mmHg/s. We have the blood pressure equation P(t) = 18 sin((3/2)πt) + 100.The maximum blood pressure is systolic pressure, which occurs when the heart contracts. The minimum blood pressure is the diastolic pressure, which occurs when the heart relaxes. Therefore, Systolic pressure = P(t) + 18 mmHg.
We know that 1 minute = 60 seconds. Therefore, the number of heartbeats per minute = number of heartbeats per second × 60The pressure is given by P(t) = 18 sin((3/2)πt) + 100Differentiating with respect to t gives: dP(t)/dt = 18 × (3/2)π cos((3/2)πt) × (3/2)πThe rate at which blood pressure is changing at t = 2 seconds in mmHg per second is approximately −40.849 mmHg/s. Therefore, the number of heartbeats per second is the frequency f = (3/2)π = 4.712 rad/s The number of heartbeats per minute is therefore:4.712 × 60/(2π) = 80 bpm(d)
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Cell organelle
Holds water solutions, provides support to the
cell when full
Answer:
It is the vacuole - Holds water solutions, provides support to the cell when full
Which of the following is not excreted ( metabolic waste) in humans?
Urine
Sweat
feaces
carbon dioxide
Answer:
Answer B is correct
Explanation:
The options:
A)Carbon dioxide
B)Water
C)Uric acid
D)Faeces
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you need vitamins to use the carbohydrates, fats, and proteins you consume and to sustain numerous chemical reactions in your body.
True, B vitamins help human bodies utilize minerals, produce new red blood cells, use carbohydrates, protein, and fat, and maintain a healthy nervous system. The three most well-known B vitamins are thiamin, riboflavin, and niacin. Everybody has to take B-Complex vitamins every day.
Thiamin- Vitamin B1
Riboflavin- Vitamin B2
Niacin- Vitamin B3
Red Blood Cells (RBC)- Red blood cells are the cells responsible for the oxygen transport to all the cells of the living organism. RBC have hemoglobin which is responsible for red color in blood.
B-Complex vitamins contains 12 different types of Vitamin B which also includes, B1, B2, and B3.
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describe the advancement of cell technology by describing what scientists are currently working on (with regards to cells and medicine)
Answer:
science are still working on so many levels of institution like medical aspect
Explanation:
science are still working on so many levels of institution like cells and medicine
research has not been ended on finding cure to most in curable disease like;
1. cancer :oestosarcoma
2. virus
which best describes bacterium?
Answer:
Bacteria (singular: bacterium) are classified as prokaryotes, which are single-celled organisms with a simple internal structure that lacks a nucleus, and contains DNA that either floats freely in a twisted, thread-like mass called the nucleoid, or in separate, circular pieces called plasmids. Hope this helps :))
Explanation:
Answer:
Bacteria are classified as prokaryotes, which are single-celled organisms with a simple internal structure that lacks a nucleus, and contains DNA that either floats freely in a twisted, thread-like mass called the nucleoid, or in separate, circular pieces called plasmids.
Explanation:
Explain the function of the cell membrane in both plants and animal cells.
Answer:
The cell membrane is permeable to small solutes to let them easily diffuse in and out of the cells.
The correvisin sequires a prim perised adiuartmant. a The wormita +ntry will be difierent than if the erroe had besw सacrerted the poritul year whest it ocrarred. 6. The 20×1. Pepriciation Expener arroent will be involved in the poereving eutigh d. Aal sheve natemente arv trae. 44. Which of the fallowing is an ancurafe description ef the w failare to recerd ab ecriasl is Hikely tio be found? a. An expense that was not acrerued is paid, but there ia no poyaBLe wn thr tooks as thres thould be b. A revenue that was not aceroed is received, but there is ne receiv. attle on the beoks as there shoald be. c. A review of the trial balnnce teveals that aat asset or liability. actoant that ia norrally pireient after secrals are recorded is. fit presest. 4. All abere statemant are sccurate deseriptions of how faiture to fecord an accual is likely to be found 45. A comparison of thin your's trial bolance with lant year's may be w good พay to discever … a. whetber nurmal accuals were made this year- b. whether normal defirrals were made this year c. errers in accruate of deferrals that have resalted in overi or ugderetatement of revenues or expensef d. all of the abowe? 46. When trying to find errun in a trialhalance that docs not balance, the first step should be to ... it. mork from the ledger to the trial balance in check the jourran! entries and postings for errors b. see if the ledger acerant balanter have been calcalated correctly c. work from the ledper to the trial balance to verify that ledger account balances were transferred to the ourrect debit or credit: colurans d work from the trial balance to the ledger to verify that ledger: account balances were transferred to the corrcet debit or credit columns
The accurate descriptions are as follows: For question 44, none of the options accurately describe the likely finding when a failure to record an accrual occurs. For question 45, the accurate description is option (d): all of the above. For question 46, the correct first step to find errors in an unbalanced trial balance is to work from the ledger to the trial balance and verify the correct transfer of ledger account balances, which corresponds to option (c).
It appears that the text provided contains several errors and inconsistencies. However, I will attempt to address the questions based on the context and assumptions made.
44. The inaccurate description of the failure to record an accrual that is likely to be found is option (c): A review of the trial balance reveals that an asset or liability account that is normally present after several are recorded is not present. In reality, if an accrual is not recorded, it would lead to an understatement or omission of expenses or revenues, not the absence of assets or liabilities in the trial balance.
45. A comparison of this year's trial balance with last year's may be a good way to discover whether normal accruals or deferrals were made this year and whether errors in the accurate or deferred recognition of revenues or expenses have resulted in over- or understatement. Therefore, the correct option is (d): all of the above.
46. When trying to find errors in a trial balance that does not balance, the first step should be to work from the ledger to the trial balance to verify that ledger account balances were transferred to the correct debit or credit columns. This option corresponds to option (c).
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How might pesticide resistant insects affect your life? Explain.
Which of the examples given has made the most beneficial adaptation in your opinion? Explain.
Which organism has developed the best adaptation for defense? Explain.
Assume, in humans, a bacteria were to become antibiotic resistant. How might that affect your life?
pls
The answers include the following;
Pesticide resistant insects can affect life by resulting in more prevalence of diseases and death.Thick scales and skin is the most beneficial adaptation in my opinion because a deviation from the normal temperature will result in death.The organism which has developed the best adaptation for defense is porcupine due to its quills which prevents it from being attacked.If in humans, a bacteria were to become antibiotic resistant then it will most likely lead to increase in death rate.What is Adaptation?These are the changes which occurs in the body structure of organisms and makes it better suited for the environment thereby increasing growth and survival.
The porcupine for example has quills which is an adaptation for defense and prevents attack by other predators and organisms. Drug resistance will lead to increase in death rates as drugs will become ineffective.
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A student is participating in the school science fair. She wants to investigate household cleaners.
Which question can she best answer through scientific investigation?
Which household cleaner is most effective at removing stains?
Which household cleaner smells the best?
How often should a person use household cleaners?
Where should a person buy household cleaners?
Answer:
How often should a person use household cleaners?
Explanation:
yoIt doesn't matter how a household cleaner smells, because they are there to clean the house, not themselves. Stains is also not the only thing they clean. Lastly, you don't go somewhere to shop for a worker. Therefore the answer is "How often should a person use household cleaners?"
What angiosperm structures correspond to micro and macro-gametophytes?
The microgametophyte is found within the pollen grain, while the megagametophyte is formed within the ovule.
In angiosperms, the microgametophyte refers to the male gametophyte and the megagametophyte refers to the female gametophyte.
The microgametophyte is typically produced within the pollen grains of the flower, and it is composed of just a few cells.
In flowering plants, the microgametophyte is also known as the pollen grain. It contains two cells: the generative cell, which will eventually form the sperm cells, and the tube cell, which will grow to form the pollen tube that delivers the sperm cells to the ovule.
The megagametophyte, on the other hand, is formed within the ovule of the flower, and it is composed of many cells. It is sometimes referred to as the embryo sac.
The megagametophyte contains the female gametes, which are the egg cells. It is formed by the process of megasporogenesis, which involves the production and development of the megaspore, followed by the growth and differentiation of the megagametophyte.
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Name 2 body systems that interact to maintain
homeostasis in the human body and explain how they do
Answer:
Internal Temperatures
Similarly, the cardiovascular, integumentary (skin and associated structures), respiratory, and muscular systems work together to help the body maintain a stable internal temperature. If body temperature rises, blood vessels in the skin dilate, allowing more blood to flow near the skin's surface.
OR,
The nervous and endocrine systems exert the ultimate control over homeostasis because they coordinate the functions of the body's systems. Regulation of body temperature, blood pressure, pH, and glucose concentration are four examples of how the body maintains homeostasis.
Hope you know
The phenotype frequency in a populatin changews after each generation which would most likely be cause this
The total lung capacity minus the residual volume equals the ____________ .
The total lung capacity minus the residual volume equals the vital capacity.
What is vital capacity?
Vital capacity (VC) is a lung volume that is a measure of the maximum amount of air a person can inhale and exhale during breathing. This calculation considers the volume of air left in the lungs after the lungs have been emptied as much as possible. VC is equivalent to total lung capacity (TLC) minus residual volume (RV).
What is residual volume?
The residual volume (RV) is the air remaining in the lungs after maximal exhalation. During normal, relaxed expiration, approximately 30% of the total lung volume is expelled. The residual volume typically ranges from 1.0 to 1.5 liters.
What is total lung capacity?
Total lung capacity (TLC) is the maximum amount of air that can be present in the lungs at the end of a full inhalation. The TLC is calculated by adding together four lung volumes: tidal volume, inspiratory reserve volume, expiratory reserve volume, and residual volume. The total lung capacity is determined by size, age, sex, and other factors.
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give an example of how bacteria can be beneficial. explain
Answer:
They help digest food, make vitamins, and play other important roles. Humans also use bacteria in many other ways, including: Creating products, such as ethanol and enzymes. Making drugs, such as antibiotics and vaccines.
Darwin called differential reproductive success due to variation among individuals in success
at getting mates ________.
A) sexual success ratio
B) sexual selection
C) reproductive selection
D) dimorphic selection
Darwin used the term "sexual selection" to describe differential reproductive success based on mate acquisition. Therefore, the correct option is (B).
Darwin referred to differential reproductive success due to variation among individuals in their ability to obtain mates as "sexual selection." This concept involves the competition for mates and the selection of traits that increase an individual's chances of reproductive success. It encompasses both male-male competition and female choice.Sexual selection plays a significant role in shaping certain traits and behaviors in species, such as elaborate displays, physical ornaments, and courtship rituals. These traits often enhance an individual's attractiveness to potential mates and increase their chances of successful reproduction.Through sexual selection, certain traits become more prevalent in a population over time, leading to sexual dimorphism, where males and females exhibit distinct physical or behavioral differences.Overall, sexual selection is a key mechanism in Darwin's theory of evolution, driving the evolution of traits related to mating success and reproductive fitness.Therefore, the correct option is (B).
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using anatomical terminology, what is the position of the sacral bones relative to the lumbar bones?
The position of the sacral bones relative to the lumbar bones is superior
The lumbar vertebrae, which are found in the lower back, are the bones that make up the spinal column or backbone. These bones are located above the sacrum or pelvis but beneath the cervical and thoracic vertebrae. They are bigger than the bones above them and are the biggest of the unfused vertebrae. Humans have five lumbar vertebrae.
In relation to the lumbar bones, the sacral bones are superiorly positioned, which means that they are situated above or in the direction of the head. A group of bones in the lower back known as the sacral bones make up the pelvis. They are situated behind the lower back bones of the lumbar region, which are situated above the sacral bones.
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