Answer:
When you have "if" and "then" in the assumptions
Explanation:
example: "If I give a plant an unlimited amount of sunlight, then the plant will grow to its largest possible size."
A good scientific hypothesis gives a relationship between the variables. An example will be "a certain type of mango has a gene for orange pigment, that mango will be orange coloured". This is then proved by experiments.
What is a scientific hypothesis?A defined idea whose validity or applicability can be tested using defined scientific experiments is called a scientific hypothesis. The scientific hypothesis has always undergone several processes of test and evaluation. It is always presented in such a way that it can be proven to be wrong. That means it must be falsifiable.
Science is a continuous process of using data to understand the various phenomena of the world. Nothing in the world of science can be considered absolute.
A scientific hypothesis is just a carefully worded statement of an idea that has to then undergo various experiments, and tests and face scientific argumentation in order to be proven valid.
Therefore, a good scientific hypothesis example will be "a certain type of mango has a gene for orange pigment, that mango will be orange coloured".
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Which of the following is a disadvantage of wind as an energy source?
O
A. It does not use fossil fuels.
B. It is a nonrenewable resource.
O
C. It may alter habitats and harm birds.
O
D. It produces greenhouse gases.
Final answer:
The disadvantage of wind energy is that it may alter habitats and harm birds, despite being renewable and not producing greenhouse gases.
Explanation:
Among the listed options, the disadvantage of wind as an energy source is C. It may alter habitats and harm birds. While wind energy does not use fossil fuels, is a renewable resource, and does not produce greenhouse gases, it can have negative impacts on wildlife. Wind turbines can pose a significant threat to flying creatures like birds and bats, who may collide with the rotors. In addition, the construction of wind farms can alter natural habitats and landscapes. Although these impacts are a concern, they are generally considered to be less damaging than the effects of fossil fuel consumption on the environment.
What can be interpreted from the graph?
A)Number of microbes reduces with the time.
B)Number of microbes remains constant with time.
C)Number of microbes increases at a constant rate.
D)Number of microbes increases exponentially with time.
Answer:
The correct option is D) Number of microbes increases exponentially with time.
Explanation:
As we can see from the graph, the population of the microbes is starting with a slow growth in the start but as time increases, the population starts to grow in an exponential manner. Exponential growth occurs when there is enough supply of food and other resources to support growth. But with the passage of time, the resources will start to decline and we will see a decline phase after the exponential phase has occurred.
Dr. Phillipi is writing an article to be published in the journal Psychological Science. At the beginning of her paper, she provides a short summary of the entire work. What is this brief description called?
Choice A., an introduction
Choice B., an abstract
Choice C., a summary
Choice D., a reference
The brief description of the project is called Abstract.
Option B.
Explanation:An abstract is defined as a brief description of the project or content of an article, speech, or a book. An abstract is given at the beginning of the book or project to describe what's the topic of the project, what the project is going to prove, or to explain.
An introduction on the other hand is a description about the project topic, the prevailing idea, or explaining the topic of project.
A reference is described as the source from where the data of the project are collected or hints are taken.
A summary is the paragraph briefly describing the project conclusion at the end of the project, to briefly explain everything about the project.
We see here a method of asexual reproduction, binary fission, in which one organism splits into two separate organisms. In
other organisms, part of an individual separates and forms a second individual. This process occurs in many asteroid echinoderms
through splitting of the central disk. This type of reproduction is analogous to growth in humans because relies on the process of
Answer:
mitosis
Explanation:
.
Analogous features are often referred as features performing a similar function but having a different evolutionary origin, such as the wings of insects and birds.
This type of reproduction is analogous to growth in humans because it relies on the process of mitosis.
Mitosis in human is an avenue for growth. It is a cell division process that also ensures growth through multiplication of cells. The cell itself divides to give rise to two daughter cells containing identical components.
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Global air circulation cells move air _____.
A) from the equator to the poles
B)
clockwise in the Northern hemisphere and counterclockwise in the Southern hemisphere.
C) randomly
D)
from low pressure to high pressure
E)
in different directions at different latitudes
Global air circulation cells move air "clockwise in the Northern hemisphere and counterclockwise in the Southern hemisphere".
Answer: Option B
Explanation:
Global circulation is defined as the global connection of winds, through which the requisite heat transport from tropical latitudes to polar latitudes carried out. Each hemisphere comprises with three cells, such as Hadley, Ferrel and Polar cell, air circulation take place in this through the complete depth of the troposphere.
The worldwide circulation cells allow passage of air in clockwise pattern in the northern hemisphere while in southern hemisphere circulate in counter-clockwise pattern from equator to poles but in different directions and at different latitudes.
Answer::::::::::::::::::::
B
2)
Substance Specific Heat (J kg-1 K-1)
Aluminum 900
Copper 390
Brass 380
Silver 230
Platinum 130
How many Joules of heat would be required to heat 0.5 kg of aluminum by 2K?
A) 300 J
B) 450 J
C) 900 J
D) 1800 J
Answer:
How many Joules of heat would be required to heat 0.5 kg of aluminum by 2K?
300J
Explanation:
Answer:
It's C) 900 J
Explanation:
USA Test Prep 2020
Why do bird embryos have gill slits?
(I’m confused, I think it has something to do with the evolution...)
Explanation:
bird embryos have gill slits because, yes, of evolution. These slits are found in the embryos of all vertebrates because they share as common ancestors the fish in which these structures first evolved. even human beings have gill slits as embryos that disappear before birth.
In which direction does wave energy travel?
Answer:
The wave travels in a direction that is perpen- dicular to the direction of the disturbance. The medium is the water, and energy is transferred outward in all directions from the source.
Answer:
perpen- dicular
at least i think it is
hope this helps !!!
Which three elements make up most of the human body?
Answer:
oxygen, carbon, hydrogen,
Explanation:
Answer:
c,h,o I believe
Explanation:
Question 7 (1 point)
glucose + fructose -> sucrose + water is a type of
reaction
Answer: The given reaction is a "Dehydration Synthesis Reaction".
Explanation:
In chemical science the antonym of hydration is dehydration reaction which is a common process of conversion take place by involving loss of water from reacting molecule or ion. For an instance the dehydration process help in formation of disaccharide (sucrose) from two monosaccharides (glucose + fructose) as given in reaction.
Some other examples are like conversion of an acid and an alcohol into an ester and reaction called as "Fischer–Speier esterification", Conversion of an alcohol to alkene etc. Normally dehydration is followed by heating or leaving at room temperature, although it is a time taking process. Some common dehydrating agents are like alumina and sulfuric acid for organic synthesis.
what’s an independent and dependent variable
Answer:Independent Variable
A variable that you (the scientist) changes and you have control over. The factor being tested in an experiment.
Dependent Variables
Factor(s) that change in response to other factors. It's what your measuring in your experiment to see whether or not the independent variable made an impact. This is what the scientist focuses their observations.
Explanation:
Answer:
one is control in scientific experiment while the other is being tested
Explanation:
The two main variables in an experiment are the independent and dependent variable. An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.
What are two reasons that this research was significant?
The main purpose of research is to inform action, to prove a theory, and contribute to developing knowledge in a field or study.
Why is research important?Research is "creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization and analysis of evidence to increase understanding of a topic, characterized by a particular attentiveness to controlling sources of bias and error.
Generally, research is the organised and systematic method of finding answers to questions. It is systematic because it is a process broken up into clear steps that lead to conclusions. Research is organised because there is a planned structure or method used to reach the conclusion.
There are four main types of Quantitative research: Descriptive, Correlational, Causal-Comparative/Quasi-Experimental, and Experimental Research.
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Final answer:
Research is vital for creating evidence-based public policy and informed personal decisions, as well as for demonstrating scientific links, like those between smoking and cancer. Studies' replication ensures the validity and reliability of findings, which is essential in fields that impact public health and policy.
Explanation:
Research is significant for various reasons, particularly in guiding public policy and personal decisions with evidence-based findings. One reason research is important is that it allows scientific demonstrations of links between phenomena, such as how early longitudinal studies by the American Cancer Society showed connections between smoking and increased cancer rates. Another reason is that replicating studies strengthens the reliability of the findings, providing confidence that results are not due to chance or specific conditions. In addition, by using archival or secondary data, researchers lay a solid foundation for developing their central research questions and conducting thorough investigations.
For researchers, it is paramount that others attempt to replicate their studies to ensure that the findings are valid and not an anomaly. This replication contributes to the strength of scientific evidence and eventually, to consensus within the scientific community on certain issues. This is crucial in psychological research and any field where understanding behavior and its implications can significantly affect public health, policy, and individual life choices.
Help, correct answer only!!!!!!!!!!!!!!
Which situation involves mainly biotic factors?
A drop in the pH of ocean water prevents coral from growing properly, which harms the coral reef ecosystem.
A fungus wipes out a bat population, which allows the mosquito population to increase and spread disease to people.
Dust from a volcanic eruption blocks sunlight to Earth's surface, and as a result the weather gets colder.
A drought causes crops to die, and as a result cattle go hungry.
Answer: It is B
there you go good luck
Biotic factors:
A biotic factor is a living organism that shapes its environment.
Biotic and abiotic factors work together to create a unique ecosystem.
For example: Humans, insects, wild animals, birds, bacteria, etc.
The situation which mainly involve biotic factors are:
B. A fungus wipes out a bat population, which allows the mosquito population to increase and spread disease to people.
This situation mainly involve biotic factors such as fungus, bat, mosquito, people.
Thus, option B is correct.
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What happens during prophase?
Answer: The cell increases in size and chromatin condenses into chromosomes
Explanation:
Human beings are most capable of survival at an internal temperature of about 37 degrees Celsius. However , the temperature outside is rarely exactly 37 degrees Celsius
Humans have a system of homeostasis inside their body which helps maintain temperature accordingly.
Explanation:
Human body is blessed with full-fledged thermoregulatory system inside it to sustain the temperature change in the environment.
Homeostasis can be defined as a tendency of the human body to maintain constant temperature inside in comparision to the environment temperature.
Blood helps human beings maintain homeostasis by vasoconstriction or vasodilation of the blood vessels.
The heat is lost in high temperatures by sweating resulting in maintenance of body temperature.
The waste material released is ejected to maintain temperature.
Answer:
reduce heat production and release sweat
Explanation:
study island
What would be the answer for this question?(Biology)
Which is the first step in the fusion process?
Answer:
Option C would be the correct one.
Explanation:
Answer:
C is the correct option
Explanation:
describe the structure and shape of dna
It has a double helix structure. A double helix, which is made up of two linked strands that loop around one another to resemble a twisted ladder, is the shape of DNA.
What is DNA?Deoxyribonucleic acid, or DNA, is the molecule that contains the genetic information required for an organism to grow and function. The shape of DNA is a double helix, which is made up of two linked strands that loop around one another to resemble a twisted ladder.DNA is a double-stranded nucleic acid that contains the genetic code of all living things. It is required for cell development, division, and operation in an organism. In general, RNA is a single-stranded nucleic acid. DNA is composed of chemical building blocks known as nucleotides. These building blocks are composed of three components: a phosphate group, a sugar group, and one of four different types of nitrogen bases.To learn more about DNA refer to:
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The equation below represents a biological process. Where is this process completed?
carbon dioxide + water glucose + oxygen
Question 2 options:
mitochondria
ribosomes
cell membranes
chloroplasts
Answer:
The equation represents a biological process that is Photosynthesis. This process is done by plant cell in their chloroplast.
Expanation:
Plants contain Chlorophyll Pigment that helps in the process of photosynthesis( a biological process through which plants can produce their own food with the help of sun light, Carbon dioxide and water and form glucose and oxygen).
This process takes place in chloroplast which contain double membrane with many folds. The double membrane encloses a structure called thylakoid that contain pigment chlorophyll. The function of chloroplast is to capture light that is required in the process of photosynthesis.
The process of converting carbon dioxide and water to glucose and oxygen using light energy, or photosynthesis, occurs in the chloroplasts of green plant cells.
Explanation:The process of converting carbon dioxide and water into glucose and oxygen is called photosynthesis. This process takes place in the chloroplasts of green plant cells. Chloroplasts contain the pigment chlorophyll, which absorbs light energy from the sun, and utilize this energy to facilitate the production of glucose and oxygen from carbon dioxide and water.
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example on plant that make flowers
Answer:
plants make flowers
Explanation:
Peppered moth simulation
Answer:
yes
Explanation:
because
The Peppered Moth Simulation is a biological illustration of natural selection. The color of these moths changed in response to industrial pollution in 19th-century England, with darker moths having a survival advantage because they were better camouflaged. This color balance has been shifting back as air quality improves.
The Peppered Moth Simulation is a classic example of adaptation and survival in biology, often used to demonstrate the concept of natural selection.
In the mid-19th century, nearly all peppered moths in industrialized areas of England were dark (or 'melanic'), whereas before industrial pollution the majority were 'typica' or lighter colored. The color change is believed to have been a response to pollution: dark moths were better camouflaged against soot-covered trees and therefore less likely to be eaten by birds. This is known as industrial melanism.
Tests carried out in various ways have shown that the large changes in frequency of the dark moth could not have happened by chance, which indicates natural selection. With improvements in air quality, the 'typica' variety of the moth is again predominant today.
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According to the text, what happens when organisms cannot adapt to changes in their environment?
A. They move to another environment.
B. They risk dying out.
C. Nothing happens.
D. They wait for the environment to change again.
Answer:
The correct options are A) They move to another environment.
B) They risk dying out.
Explanation:
According to natural selection, only those organisms are able to live and survive in an environment which can adapt to the changes in an environment. Such organisms reproduce and pass on their characteristics to their offsprings.
Organisms which are not able to adapt to changes in an environment either migrate to other places or die as they are not able to survive by the changes being made.
If organisms can't adapt to environmental changes, they risk dying out, which can lead to extinction. Adaptation is key for maintaining internal stability and handling external changes.
Explanation:When organisms cannot adapt to changes in their environment, they risk dying out. The inability to adapt may lead to extinction, as has happened with the majority of species in evolutionary history. Adaptation is crucial for survival because it enables organisms to maintain their internal environments and respond to external changes. If a species develops a disadvantageous mutation, competing species that remain unchanged could become relatively better adapted without any change on their part. This concept reflects the importance of continuous adaptation just to maintain a species relative standing in its ecosystem.
What is the relationship between mitosis and the cell cycle?
Brainliest if correct
Mitosis represents only about 10% of the cell cycle.
The cell cycle represents about 90% of mitosis.
DNA synthesis takes place during mitosis; the cell divides in two during the cell cycle.
The parent cell is created during mitosis; the daughter cells are a result of the cell cycle.
Answer:
The cell cycle represents about 90% of mitosis.
Explanation:
The cell starts the process resulting in division. The entire cell cycle may be considered to be in four phases; G1, S, G2, and M. In the G1 phase, the cell doubles in size, and there is formation of new organelles and materials required for two cells. During this phase, there is nucleus migration to the center of the cell. This phase ends with the G1/S checkpoint. The process can be terminated at this point, or proceed to S phase in which DNA and associated nuclear proteins are replicated. By the end of the S phase, the cell contains two entire copies of its genetic information. The cell proceeds to G2 phase where the chromosome starts condensing, and structures required for division are formed. A discrete band of microtubules forms around the cytoplasm marking the plane of cell division. At the end of the G2 phase, the cell undergoes another checkpoint: G2/M checkpoint, upon which, if conditions are appropriate, the cell enters M phase in which it divides.
Consuming even moderate amounts of alcohol can cause drunkenness and to do what to
the body
Even moderate alcohol consumption causes dis-balance in movement.
Explanation:
The alcohol consumption causes severe ill effects on brain, liver and other body parts.
It can lead to memory loss and intelligence loss. It disturbs the coordination of signalling of the brain to the body. The most affected part of the brain would be cerebellum even in moderate drinking which is the centre of balance and movement in the body.
The liver will be the most affected organ in the body.
Answer:
not enliven so it's probably poison
Explanation: I'm not 100% sure
Describes the interactions that occur among systems are perform the functions of transportation response and reproduction in plants
Transportation system is maintained by xylem and phloem, response is maintained by endocrine system, and sexual reproduction is maintained by flowers and seeds.
Explanation:All the systems in plants are very well collaborated with each other, and the response between each one of them results in effecting other systems. The transportation system of plants consists of xylem and phloem. This tissues grow and flourish due to endocrine system. The auxin, cytokinin, and the gibberellin has direct effects on the growth of the plant tissues.
Now the plant reproduction i.e flowering and seed formation are also dependent on the endocrine system. Auxin is responsible for bud formation. So each and every system is dependent on each other for their flourishing.
Final answer:
The interconnected systems of plant transport, response, and reproduction are integral for plant functionality. The vascular system, including xylem and phloem, is crucial for distributing water and nutrients, while the shoot and root systems play essential roles in growth and absorption. Inter-species interactions contribute to plant reproduction and species propagation.
Explanation:
The interactions among plant systems such as the transport, response, and reproduction systems enable plants to function effectively in their environments. The vascular system, consisting of xylem and phloem, plays a crucial role in transporting water, nutrients, and photosynthates throughout the plant. The xylem primarily moves water and minerals from the roots to the rest of the plant, while the phloem distributes sugars produced during photosynthesis to all parts of the plant, including the roots.
Plant organ systems consist of a shoot system for above-ground growth and a root system for water and mineral absorption. Within these systems, individual organs such as leaves, stems, and roots work together to perform essential functions including photosynthesis, respiration, and nutrient transport. During reproduction, plants also interact with other species, such as pollinators and animals that disperse seeds, which are necessary for the continuation of plant species.
These interactions illustrate the concept that structure relates to function within biological systems. By understanding how systems like water potential and features like plant roots and leaves are adapted for their roles, we gain insight into the complex properties that arise from interactions within these biological systems.
The number of covalent bonds that an atom tends to form is equal to:
A: the number of valence electrons.
B: the number of unbalanced neutrons.
C: the number of unpaired electrons.
D: the atomic number.
E: the number of nearby atoms.
The number of covalent bonds that an atom tends to form is equal to the number of valence electrons.
Explanation:
Covalent bonds are formed between non-metals by sharing of the equal number of valence electrons between the two atoms. The valence electrons are the number of electrons in the outermost shell of the atom. These valence electrons share between the atoms and from bonds. eg. are NH3 and H2.
The sharing of valence electrons complete the octet rule and covalent bonds are formed.
7. What is the probability of a homozygous recessive offspring?
Answer:
If two heterozygotes are crossed, the probability that an offspring will be homozygous recessive is 25% or 0.25. Homozygous dominant: 25% or 0.25. Heterozygous: 50% or 0.50.
What happens if the enzyme temperature was decreased.
Answer:
enzymes died slowly when temperature reduces
Wildebeest and red-billed quelea engage in resource partitioning, where each uses a different
part of the grass. Explain how this works.
Answer:
In an environment where resources such as food are being depleted, organisms within a species and organisms belonging to different species need to find a way in which they can coexist and survive in the environment. This is done by the organisms so in order to avoid competition. Resource partitioning is a method that organisms use for survival by dividing their resources so that there is lesser competition.
The wildebeest and the red-billed quelea are also using this phenomenon in order to survive. They have divided their part of the grass so that there is lesser competition and both of the species are able to coexist.
The Robinsons are out sailing on a Saturday afternoon. Their boat is located at position X on this map. They didn’t check the weather forecast before they left and they need your help. Complete the sentences to describe the weather trends on the map.
The Robinsons are sailing in a region of relatively blank (1) pressure. The weather front located closest to the family is blank (2) front. Based on their current location, the Robinsons should expect the weather to include blank (3).
1- low, high, stable
2- an occluded, a stationary, a warm
3- a light breeze and pleasant conditions, intense sunlight and heat, heavy rain and strong wind
HELP more points
1 - High
2 - Occluded
3- a light breeze and pleasant conditions,
The Robinsons are sailing in a region of relatively blank HIGH pressure. The weather front located closest to the family is blank OCCLUDED front. Based on their current location, the Robinsons should expect the weather to include blank A LIGHT BREEZE AND PLEASANT CONDITIONS.
Explanation:
The lines on the map are isoclines that join areas of the same atmospheric pressure. When they are close together, this means the area is a high-pressure system. High-pressure systems cause winds to move from the region to region of low pressure.
Therefore areas of the high-pressure systems are characterized by the following weather conditions, light breeze, clear skies because they push clods away. In addition, the region is characterized by a larger temperature range between night and day.
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Answer:
Low
an occluded
heavy rainstorms and strong winds