Answer:
Due to its thin width and elasticity.
Explanation:
A jumping rope could be used to model the cell membrane of a plant cell because of their elasticity that acts like cell wall or cell membrane of the cell. Just like a cell wall or cell membrane which is the outer covering is thin in width and has the ability to elasticity so the jumping rope is also used in the model due to its elasticity and thin width so that's why we can used it in the cell model.
which of the following hypotheses can be tested with experiments? select all that apply
1.) a diet low in sugar reduces the risk for heart disease
2.) coffee increases subject performance on intelligence tests
3.) people that brush their teeth live longer than those who don't brush their teeth
4.) scientists will find a cure for cancer before the year 2020
I know that 4 isn't the answer so I selected the other three and it said I was wrong. isn't a hypotheses something that can be experimented on so can't all of the three have experiments If I'm making sense
Options 1 and 2 can be tested through experimental procedures.
A hypothesis is an explanation for a given phenomenon from the real world.A testable hypothesis is a plausible explanation that can be proved (or rejected) by an experimental and/or observational procedure. A well-designed experiment should have into account the following characteristics: randomization, replication and local control.Manipulation indicates that one variable (dependent variable) is purposefully changed by the scientist in the environment.The controls must be used to prevent non-controlled factors which might be influencing the outcomes of the experiment.Option 3: it is not possible to carry out an experiment to test this hypothesis.Option 4: it is not a hypothesis and a false anachronic statement (cancer is a multifactorial disease that currently still has not been cured).In conclusion, only Options 1 and 2 can be tested through experimental procedures.
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Write a short paragraph (3- -4 sentences) to compare TWO different locations in the world. You should focus on the type of precipitation and the reason(s) why it is different. Make sure to mention the names of your chosen locations and the type of precipitation experienced in your comparison.
Answer:
i would write about a well economically developed country like " USA, China, Japan or Germany" Vs a badly developed country like "Fiji , Peru , South Africa" its easy to research these places :)
Explanation:
good luck champ
who is the fathers of plants cell
Answer:
explain? are you looking for the male parts of a cell
What would most likely happen to a unicellular if it was exposed to a hypotonic solution for an extended period of time
define the term colony as it relates to bacterial growth on solid media
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A colony is a territory under the complete political and military control of the settlers of a state, which is distinct from the home territory of the sovereign.
Dichotomous key (PLZ HELPLPP)
Answer:
The answers are the following.
Explanation:
The candy no. 3 and 4 is hard whereas the candy no. 5 and 7 is not hard. The candy no. 3 is on the stick whereas the candy no. 1, 2, 4, 5, and 7 is not on the stick. The snicker and candy no. 7 are long and thin whereas the candy no. 1, 3, 4, 5 are not long and thin. The Snickers candy is made of chocolate whereas the candy no. 1, 3, 4, 5 and 7 are not made of chocolate, they are made of other substances. The candy no. 1 is triangle shaped whereas all the candies except candy no. 1 is not present in triangle shaped.
A family is relocating from St. Louis, Missouri, to California. Due to an increasing inventory of houses in St. Louis, it is taking longer than before to sell a house. The wife is concerned and wants to know when it is optimal to put their house on the market. Her realtor friend informs them that the last 21 houses that sold in their neighborhood took an average time of 60 days to sell. The realtor also tells them that based on her prior experience, the population standard deviation is 14 days.
What assumption regarding the population is necessary for making an interval estimate for the population mean?
Answer:
The assumption regarding the population which is necessary for making an interval estimate for the population mean is that:
a. We assume that the population has a normal distribution.
b. We assume that the central limit theorem applies.
Explanation:
The assumption regarding the population which is necessary for making an interval estimate for the population mean is that:
a. We assume that the population has a normal distribution.
b. We assume that the central limit theorem applies.
A normal distribution describes how the values of a variable are distributed. It is a probability distribution that is symmetrical about the central value or the mean, i.e. 50% of data are found to the left and right of the mean respectively. Most of the data are clustered around the mean, i.e. they occur or are found near the mean than far away from the mean. The graph form of a normal distribution will appear as a bell curve. In a normal distribution, mean = mode = median.
The Central Limit Theorem states that irrespective of the underlying distribution of a sample, when a variable does not follow a normal distribution, repeated random samples from the population will give sample means they are normally distributed. This means that the sampling distribution of the sample means approaches a normal distribution as the sample size gets larger.
Which of the following is a base used in DNA replication that is NOT used in translation?
i need asap!
Answer:
Hi, there, but I don't see multiple choices. May you please give me the answer choices. So I can help you
Explanation:
THYMINE
When dealing with base pairing in DNA...
g pairs with c and c with g.
a pairs with t and t with a.
But when dealing with base pairing involving RNA...
a pairs with u and u with a.
t pairs with a.
Hope this helped, if it did please mark me brainliest!
(I had misread your question before. Uracil couldn't be that base because it's not in DNA, and is in translation.)
how does the kidney help with excretion
Answer:
kidneys filter about a half cup of blood every minute, removing wastes and extra water to make urine
In a cell undergoing meiosis, during which stage do the sister chromatids separate from each other?
anaphase l
anaphase ll
telophase l
telophase ll
Answer:
anaphase ll
Explanation:
anaphase ll
BRAINILIEST PLEASE
pa help naman po....
Answer:.
Explanation:
Answer:
planetrevolution year different Seaons ..( not sure bout this)The nervous system interacts with the endocrine system by ____.
A. sending neurotransmitters to endocrine target cells
B. sending neurotransmitters to neuroendocrine cells
C. translating messages from endocrine cells
D. receiving messages from hormones
Answer: D. Receiving messages from hormones.
Explanation:
Two normal parents produce a child affected with the autosomal recessive disease homocysteinuria. They want to have 3 more children. You tell them the chance of 1 OR MORE affected among the next three children is:
Answer:
Zero
Explanation:
Because in a situation whereby both parents are carriers of an autosomal recessive condition there is a 1 in 4 chance of them having an affected child.
Hence, given that these two normal parents have already had one affected child with the autosomal recessive disease homocystinuria. There is ZERO chance of having an affected child in the next three kids they will be having.
Which of these is true for a fertilized egg?
O A. It has DNA from both parents.
B. It has a haploid number of chromosomes.
O C. It has DNA but no chromosomes.
.
D. It has too many chromosomes until it splits.
Answer:
A. DNA from both parents
Explanation:
without DNA there would not be fertility at all or any similarities with the parents
list 3 thing that you dont like
witch element are involved in creating genetic matirials
Answer:
Carbon, Oxygen, hydrogen , Nitrogen , and phosphorus.
The compression sleeve would increase the interstitial fluid hydrostatic pressure and would decrease the amount of fluid leaking from the capillaries in the right arm.
a. True
b. False
A scientist is studying the impact of a new manufacturing plant on the local ocean ecosystem. How could she best monitor the impact of the manufacturing plant on populations in this ecosystem? A. She could perform several wildlife surveys over time to observe any changes in the number and type of marine organisms in the ecosystem. B. She could add a chemical to the water to react with the waste products that the manufacturing plant is dumping into the marine ecosystem. C. She could ask the manufacturing plant to treat all of the waste products that they are dumping into the marine ecosystem. D. She could collect data on the amount of product made by the manufacturing plant and how much the product sells for in local cities.
Answer:
A. wild life survey
Explanation:
That's was the only answer that involved observing the wild life while the manufacturing plant is operating.
The diagram below does not represent a sustainable energy pyramid in an ecosystem because
Answer: more energy must be available in the producer level than in the consumer levels
Explanation:
Please Fill in the blanks (plato)
Immune responses can be either innate (nonspecific) or adaptive (specific). Suppose a person comes into contact with bacteria that cause a disease that the person has experienced previously. The production of antibodies to fight off the infection is considered an _____ response, while the development of a fever to inhibit bacterial growth is considered an _____ response. (the possible answers to the blanks are "Adaptive" and "Innate")
Answer:
adaptive; innate
Explanation:
The adaptive immune system refers to a specific type of immunity which is found only in vertebrates. Adaptive immunity is defined by the presence of specialized immune cells (i.e., lymphocytes such as T and B cells). The B cells produce molecules known as antibodies which destroy specific pathogenic microorganisms (e.g., bacteria, viruses) and thus prevent diseases in the future. On the other hand, the innate immune system is the first (and evolutionary more ancient) defense line against pathogenic infections or tissue injury. Innate immunity includes, among others, physical barriers, anatomical barriers, phagocytic enzymes (i.e., lysozymes), phagocytic cells (i.e., macrophages), inflammation, etc. Inflammation is defined as an innate immune response composed of complex biological processes that protect the body by eliminating harmful microorganisms and intracellular danger signals, thereby regulating signaling pathways of many diseases.
what defies a species?
Answer:
their color, their size, their life I guess
Fat cells are expandable. How does this structure relate to a fat cell's function?
A) Fat cells store energy for the body to use later, so being
expandable would help with storage.
B) Fat cells burn energy quickly when other food source is available, so being expandable would help with the rapid burn.
C) Fall cells protect organs, so being expandable can help with cushioning.
D) Fat cells do not expand
Fat cells burn energy quickly when other food source is available, so being expandable would help with the rapid burn.
The relationship between the expandability of fat cells and a fat cell's function is ; ( A ) Fat cells store energy for the body to use later, so being expandable would help with storage.
Fat cells specialized for the storage of energy in human body is the Adipose tissue which can expand between 60 to 70% of the weight of the human body in response to changes in the energy balance of the body.
Adipose tissues store energy in form of triglycerides and in order to store more energy for later use the Adipose would need to be expandable to accommodate the required amount of energy.
Hence we can conclude that the relationship between the expandability of fat cells and a fat cells' function is Fat cells store energy for the body to use later, so being expandable would help with storage.
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what is it called when a seismic wave bends as it passed from liquid to solid
Answer:
Refraction
Explanation:
The bending of seismic waves is called refraction. The fact that S-waves do not travel through the outer core suggests that the latter is liquid.
how can an irreverible step in a metabolic pathway be reversed?
A. When both the reactants and products have equal amounts of energy
B. When the reactants contain large amounts of energy
C. When another chemical reaction with a large amount of energy occurs at same time
D. when collision of substances generate the energy needed
how can an irreverible step in a metabolic pathway be reversed?
A. When both the reactants and products have equal amounts of energy
B. When the reactants contain large amounts of energy
C. When another chemical reaction with a large amount of energy occurs at same time
D. when collision of substances generate the energy needed
Order the sequence of events in transcription?
1- free ribonuleotide triphosphates base-pair with the deoxyribonucleotides in the DNA template
2- RNA polymerase binds to the promoter region of a gene
3- primary rna transcript is formed
4- two DNA strands are seperated
Which organic molecule is not found on the plasma membrane?
A. carbohydrates
B. cholestrol
c. phospholipids
d. proteins
What does this statement mean : "Information flow between cells tissues and organs is an essential feature of homeostasis and allows for integration of physiological processes"
A. the nervous system is the most prominent body system for integration of physilogical processes
B. some substances can affect local processes while others travel to exert their effects on other distant parts of the body
C. communication between body structures through body fluids is the most important physiological processes
D. Neurotransmitters, hormones, paracrine and autocrine substances exert their efferts locally as well as distant body structures
which statement best describes the orientation the phospholipid molecules in a membrane:
A.) the nonpolar fatty acids are oriented towards the cholestrol molecules
B.) the hydrophilic layer is oriented towards the middle of the phosphlipids
C.) phospholipids align themselves in the membrane in a bimolecular layer
D.) the hydrophobic and hydrophilic structures point away from the cell
Which is NOT a product of glycolysis under aerobic and anaerobic conditions?
A.) lactate
B.) FADH
C.) pyruvate
D.) NADH
Which reason is why water is an essential nutrient?
A.) water needs to move between compartments
B.)can be obtained through ingestion
C.) body cant make enough water for its needs
D.) water evaporates from the skin that has the largest surface area among all body structures
Answer:
WEEEE pero tu crees que yo voy a traducir todo eso?
Explanation:
me da flojera y aparte tengo que estudiar.
Which of the follow is not a part of the quality control process?
Question 1 options:
1)
Preparation of reagents
2)
Calibration and maintenance of critical equipment
3)
Continuing education
4)
Experimental controls
5)
Validation of protocols
Answer:
I don't understand the question
Explanation:
but number 2
how are seasons in the northern hemisphere related to seasons in the southern hemisphere?
Answer: In the Northern Hemisphere, the seasons are the polar opposite of those in the Southern Hemisphere.
Explanation: As a result, winter in Argentina and Australia begins around June. In the Southern Hemisphere, the winter solstice occurs on June 20 or 21, while the summer solstice, the longest day of the year, occurs on December 21 or 22.
hope this helps good luck mate! :)
Answer:
Reveresd.
Explanation:
Northern/Southern
Summer/Winter
Fall/Spring
When it is summer in the northern it is winter in southern. After that the northern goes into fall while the southern goes into spring.
HELP!!!!!
I WILL MARK YOU AS THE BRAINLIEST ANSWER!!!
Annotate the symbol by the reference image. Then, explain why this symbol represents an ion and how many electrons it has.
• the name of the element
• the charge
• the mass number
• the atomic number
Answer:
since the symbol has a "+1" sign at the top right corner it represents a positively charged ion.
it has 4 electrons as it has "+1" symbol meaning it lost one electron out of initially 5 electrons present.
name of element = Boronthe charge = +1the mass number = 11the atomic number = 5Answer: ion has a 2+ charge then it must have lost electrons to form the cation. If the ion has 18 electrons and the atom lost 2 to form the ion, then the neutral atom contained 20 electrons. Since it was neutral, it must also have had 20 protons. Therefore the element is calcium.
]
explain the factors that contribute to the success of class insecta.
Answer:
It is believed that insects are so successful because they have a protective shell or exoskeleton, they are small, and they can fly. Their small size and ability to fly permits escape from enemies and dispersal to new environments. ... In addition, insects can produce large numbers of offspring relatively quickly.
There are a number of important aspects that contribute to the success of the Class Insecta, which includes insects. The factors are their size, thin exoskeleton, reproduction, etc.
First off, because of their modest size and effective body composition, they may occupy a variety of environments and fill a variety of biological niches.
Insects have a thin exoskeleton that allows for flexibility and motion as well as protection and support.
Because of their diminutive size, they can access a variety of microhabitats, cracks, and supplies that larger species cannot.
In addition, insects have remarkable methods and capacities for reproduction. The majority of insects reproduce quickly and give birth to numerous young.
They use a variety of reproductive techniques, such as internal fertilisation and complex courtship rituals.
Thus, the small size, effective body structure, variety of reproductive techniques, flexibility, and resilience of Class Insecta are factors in their success.
Thus, these elements have made it possible for insects to survive in a variety of habitats, use a range of resources, and play essential roles in ecosystems as pollinators, decomposers, predators, and prey.
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ecologically, termites are classified as a carnivore b, detritivores c, insectivore d, herbivore
Answer:
b. detritivores
Explanation:
Detritivores (also known as detrivores, detritophages, detritus feeders, or detritus eaters) are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as faeces).
Which feature of the ocean floor is caused by one tectonic plate moving under another at a convergent boundary? A. A flat plain B. A mid-ocean ridge C. A continental shell D. A trench PREVIOUS
Answer:
D
Explanation:
A trench is formed, a mid ocean ridge is formed while doing the opposite of what is described, a shelf is when land sinks, and a plkain isjust a plain
Answer:
D. A trench
Explanation:
