Drag the terms on the left to the appropriate blanks on the right to complete the sentences about the observational study.
What is an non example of cytoplasm
the place in the lungs where the gases exchange is the
A biology student wants to conduct a study of how the amount of sunlight affects the length of sleep for mice. she sets up for cages with a mouse in each cage. what are the constants? what is the independent variable? what is the dependent variable? what data do you need to collect during this experiment?
In the biology student's experiment, the constants include the cage environment and mice care conditions. The amount of sunlight is the independent variable, while the sleep length for the mice is the dependent variable. They must collect data on sunlight exposure and sleep length.
Variables in a Biology Experiment
When a biology student conducts an experiment to study the effects of sunlight on the length of sleep for mice, several components must be identified. The constants are the conditions kept the same across the experiment, such as the type of mouse, the environment within the cages aside from varying light, the mice's diet, and other care conditions.
The independent variable is the amount of sunlight that the mice are exposed to, as it is the condition being manipulated or changed. The dependent variable is the length of sleep for the mice, which is the observed outcome that may change in response to alterations in the independent variable.
To collect relevant data during the experiment, one needs to record the exact amount of sunlight each mouse receives (which potentially could be measured in hours of exposure or intensity of light) and the length of sleep for each mouse, quantified in hours or minutes of sleep.
How could cutting down trees affect water quality in a watershed
A.water levels would be reduced
B. Rivers and streams might become clogged with slit
C.The watershed divide would change
D.There would be no effect on water quality
Answer:
b
Explanation:
Cutting trees affects water quality in watersheds which can cause water levels would be reduced. So, the correct option is A..
What are Watersheds?Watershed is defined as an area of land where all water flows to a central point, such as a lake, river or stream which refers to an area of land that contains a group of streams or rivers that flows like a big water body, sea or river.
A watershed is described as the entire river system that is the area drained by a river and its tributaries. It is also called as a drainage basin. Deforestation reduces the water holding capacity of the soil where the movement of water from the soil surface into the ground is reduced resulting in depletion of groundwater level.
Thus, cutting trees affects water quality in watersheds which can cause water levels would be reduced. So, the correct option is A.
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Mildred is a 74-year-old woman in good health. when asked who she expects to take care of her when she can no longer care for herself, mildred (like most elderly americans) expects that she will be taken care of by her:
Thylakoids are membrane sacs that contain what?
chlorophyll is the answer
Which of the following statements does not accurately describe stem cells?
a. The use of stem cells may allow scientist to use undifferentiated cells to repair or replace bad cells.
b. the use of stem cells is without any objections since it can be used in therapies to help humans.
c. Embryonic stem cells make up te inner cell mass of blastocyst .
d. Adult stem cells are multipotent and can differentiate into types of cells .
Johnny has a penny removed from his left nostril in the provider’s office. what cpt® code is reported?
The answer is CPT Code 30300. The explanation behind this is a penny in the nostril is measured as a foreign object. In the CPT® Index, look up Nose/Removal/Foreign Body and it will directly lead you to the code 30300. The explanation of the code verifies that this is an elimination that would be performed in a doctor’s office
The fact that we have unicellular and multi cellar organisms underlines which properties of life?
The answer is
"cells".
The simple difference between unicellular and multicellular organisms is that unicellular organisms consist of only one cell as opposed to
multicellular organisms which are composed of multiple cells. Unicellular
organisms are mostly not seen by human eye (though there are some which can be
seen), one need to use a microscope to see them.
Explain how new discoveries influence contemporary psychological perspectives
Answer:
Explanation:
Psychology is the scientific study of mental and behavioral process and since past new discoveries have played crucial role in the development of these mental and behavioral process because discoveries provide new perspective which lighten up new and alternative route to look at different things. For example, discovery of fire and wheel in early stone age period left a psychological impact on the people of that era which slowly led to the evolution of human civilization.
In order for the growth rate to remain constant what must happen to the birth rate?
Final answer:
To maintain a constant growth rate, the birth rate must be equal to the death rate, achieving a balance where the population size remains stable. This scenario is typically reached in Stage 4 of population growth dynamics, where both birth and death rates are low, hence no significant change in population size occurs.
Explanation:
In order for the growth rate to remain constant, the birth rate must be equal to the death rate. This balance ensures that the population size stays stable over time. Population growth dynamics can be understood through different stages:
Stage 1 - High birth and death rates lead to slow population growth.Stage 2 - The death rate falls but the birth rate remains high, leading to faster population growth.Stage 3 - The birth rate starts to fall, slowing the population growth.Stage 4 - The birth rate and death rate reach the same low level, resulting in zero population growth.At Stage 4, the key to maintaining a constant growth rate, which is essentially zero growth in this context, is having the birth rate decrease to match the lower death rate. This equilibrium prevents any significant increase or decrease in the total population size. Factors such as societal development, healthcare improvements, and policies like the One-Child Policy in China have been historical influencers on birth and death rates, affecting population stability.
Two beakers contain what are clearly identical amounts of a liquid. however, a child suddenly judges them as holding different amounts of liquid after the liquid in one beaker is poured into a shorter, wider beaker. the child apparently lacks a concept of _____. your answer:
A client in the ambulatory care clinic is experiencing shortness of breath and facial and throat edema while receiving a pegloticase infusion. what is the nurse’s best action?
If jennifer wants to reduce the risk of having a baby with a birth defect caused by an environmental substance like drugs or alcohol, she should try her best to avoid these substances during
How can habitat corridors be beneficial to species that need large areas in which to live and move around?
Answer:
A habitat corridor is an area of land that connects to populations and is separate from all human activities such as logging. It can be beneficial because if there were two populations that needed large areas of land they could connect for an even larger area and it would prevent the damaging effects of inbreeding.
Explanation:
A habitat corridor is an area of land that connects to populations and is separate from all human activities such as logging.
What is habitat corridor?It can be beneficial because if there were two populations that needed large areas of land they could connect for an even larger area and it would prevent the damaging effects of inbreeding.
The term "corridor" is prone to misunderstanding and incorrect definition. A habitat corridor is defined by Beier and Noss (1998) as: a linear habitat embedded in a heterogeneous matrix.
A habitat corridor's significance can only be determined by the main habitat it connects. To reach their full potential, corridors depend on a network of already-existing but discontinuous natural areas (dechant).
Therefore, A habitat corridor is an area of land that connects to populations and is separate from all human activities such as logging.
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In order for an organism to survive it must do what.
Answer:
to stay healthy
Explanation:
i took the k12 7th science quiz 1.02
For sediment to be transformed into rock, what processes must take place?
A. weathering and erosion
B. melting and spreading
C. crystallization and solidification
D. compaction and cementation
Compared to today, the treatment of breast cancer in the 1960s, typically:
A pesticide inhibits the activity of a particular enzyme a, which can therefore be used to assay for the presence of the pesticide in an unknown sample.
Since vitamin a and carotenoids are bound to proteins in foods, ___________ is necessary to release them for absorption.
You are a sun worshipper, constantly sunbathing without sun screen or other protective devices. in addition you are a smoker. these together have significantly increased your chances of getting what disease?
In this exercise, you will use the cytochrome c oxidase i (coi) gene to investigate relationships among salmon species. (this gene encodes a protein that functions in the mitochondrial electron transport chain.) you will compare the coi gene sequences from your salmon test samples to the standard sequences for each salmon species. in order for the coi gene to be useful for distinguishing among the different salmon species, which three statements must be true?
Dogs will often turn their heads or bodies and/or exhibit behaviors such as yawning and licking as a way to calm or diffuse aggessive situations. These actions are often referred to as _______ signals.
A. cutoff
B. submission
C. fight or flight
D. subordination
The part of the ear that acts as a funnel to concentrate sounds and guide them into the ear canal is called the
The carbon dioxide absorbed by plants is an example of an ________ to a forest and an ________ from the atmosphere.
The carbon dioxide absorbed by plants, such as those in forests, is an input to the forest ecosystem and an output from the atmosphere. The forest acts as a carbon sink, storing carbon, while the atmosphere acts as a carbon source, supplying carbon dioxide. The balance of these processes influences atmospheric carbon dioxide levels and climate change.
Explanation:The carbon dioxide absorbed by plants functions as an input to a forest and an output from the atmosphere. This concept is part of the biological carbon cycle, where carbon moves between the atmosphere and various ecosystems. Plants, or autotrophs, absorb carbon dioxide from the atmosphere in a process known as photosynthesis, and incorporate this carbon into high energy compounds like glucose. Therefore, forests become carbon sinks as they lock away this carbon.
Meanwhile, the atmosphere functions as a carbon source, continuously providing carbon dioxide. The burning of fossil fuels, for example, releases vast amounts of carbon dioxide into the atmosphere, contributing to this carbon source. It's important to note that the rates of these processes greatly influence atmospheric carbon dioxide levels and thus impacts climate change.
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Is being in a "habitable zone" enough to say the planet is habitable for human life? What characteristics would an Earth-like planet need to have to support life? What challenges would we face traveling to and colonizing Kepler-186f, or other Earth-like planets outside of our solar system? Do you think scientists should spend time looking for Earth-like planets before we have the technology to visit them? Why or why not?
Making rough estimates of physical quantities is useful so that
glucose,fructose,and sucrose are all carbohydrates. what elements make up all carbohydrates?
Carbohydrates are organic compounds made up of carbon (C), hydrogen (H), and oxygen (O) atoms.
Carbohydrates are organic compounds made up of carbon (C), hydrogen (H), and oxygen (O) atoms. The general formula for carbohydrates is Cn(H2O)n, where n represents the number of carbon atoms in the molecule. Glucose, fructose, and sucrose are all examples of carbohydrates.
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Anthropomorphism is the tendency to?