Which statement accurately describes the variables in this study?

Answers

Answer 1

Answer:

write full question please


Related Questions

answer please it's urgent​

Answers

Answer:

b

b

c

b

Explanation:

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HOPE IT HELPS

HAVE A GREAT DAY

Directions Design a mock experiment that investigates how Screen Time (TV/Video Games/Computer/Phone ect.) can affect a student's performance at school.

Answers

Answer:

video games

Explanation:

there coool

Which biome is considered endangered? A. Coniferous forest B. Deciduous forest C. Rainforest D. Mountains

Answers

The answer is C, rainforest

Fill in the blanks please I’ll mark you brainliest!

Answers

Answer:

16. a, research

Explanation:

you should form your hypothesis on research because based on what you researched is what will help you try predict the outcome of the experiment

I WILL GIVE BRAINLIEST​

Answers

Carbon dioxide can be transported through the blood via three methods. It is dissolved directly in the blood, bound to plasma proteins or hemoglobin, or converted into bicarbonate.

The majority of carbon dioxide is transported as part of the bicarbonate system. Carbon dioxide diffuses into red blood cells. Inside, carbonic anhydrase converts carbon dioxide into carbonic acid (H2CO3), which is subsequently hydrolyzed into bicarbonate (HCO3−) and H+. The H+ ion binds to hemoglobin in red blood cells, and bicarbonate is transported out of the red blood cells in exchange for a chloride ion. This is called the chloride shift.

Bicarbonate leaves the red blood cells and enters the blood plasma. In the lungs, bicarbonate is transported back into the red blood cells in exchange for chloride. The H+ dissociates from hemoglobin and combines with bicarbonate to form carbonic acid with the help of carbonic anhydrase, which further catalyzes the reaction to convert carbonic acid back into carbon dioxide and water. The carbon dioxide is then expelled from the lungs.

Some drugs are made of fairly large polar molecules which cannot easily enter cells. To correct this problem, drugs are now being delivered into cells by containing them inside liposomes, in which the drug is surrounded by a phospholipid bilayer. How do liposomes help the drugs enter into the cell

Answers

Answer: The liposome fuses with the phospholipid bilayer of the cell and delivers its internal contents to the cytoplasm.

Explanation: :)

1. As a group, you and three other students must make a presentation on an animal. Which option is the best example of your group coming to a consensus on the presentation topic?(1 point)
A. A group member is selected as the team leader and the team leader chooses the presentation topic.

B. Each member gets a vote and the animal with the most votes will be the presentation topic.

C. The group writes options on slips of paper, puts them in a hat, and the paper that is selected will be the presentation topic.

D. The group cannot agree on what animal to choose so your teacher chooses your presentation topic.

2. Why might a paleontologist who works with fossils and an archaeologist who specializes if recovering human artifacts work together to determine where a fossil belongs in the hominid family tree?(1 point)

A. They both know how to remove objects carefully from the ground.

B. They both have different skills to help answer the question about ancient humans.

C. They both understand the relationship between fossils and early humans.

D. They both are experts on different types of bones.

3. Suppose a team of scientists has uncovered the site of an ancient city along a river. Which question could an anthropologist and archaeologist work together to help answer?(1 point)

A. Which plants did humans grow at this site and how were they grown?

B. How have humans impacted the rock layer of the city changed over time?

C. What tools were found at the site and which civilization used them?

D. How did changes in the depth of the river affect the houses people built at the site?

4. Insects are important to many ecosystems. For example, bees help pollinate many different plants and many animals rely on insects as food sources. Citizen science projects allow the public to work together with scientists by collecting observational data on many types of organisms such as plants, birds, or insects.

Which question could citizen science data answer that best illustrates insect population responses to climate change?
(1 point)

A. “What tree species provide the best habitat beetle species in this area?”

B. “What types of foods can butterflies eat?”

C. “How many dragonfly species are native to this region?”

D. “How does caterpillar abundance and distribution change over the year?”

5. Coral bleaching occurs when coral become stressed and expel the algae that they contain. According to scientists, what steps can society take to fix coral bleaching?(1 point)

A. Scientists have concluded that society can only fix coral bleaching by stopping climate change entirely.

B. Scientists have concluded that society can fix coral bleaching by reducing stressors, such as sedimentation and pollution, and limiting climate change.

C. Scientists have concluded that society can fix coral bleaching by reducing stressors, such as sedimentation and pollution.

D. Scientists have concluded that society can only fix coral bleaching by controlling ocean temperatures by reducing greenhouse gas emissions.

Answers

Answer:

1). b

2) d

3). d

4). d

5) b

I hope it's helps you

_____ and _____ present in air are harmful ​

Answers

Answer:

Acess Carbon dioxide and nitrogen

Which statement correctly describes a model? (1 point)


models perfectly mimic the system

models are never updated

models focus on specific details

models show all system details

Answers

Answer:

C. Models focus on specific details

Explanation:

Because A doesnt make sense because how would a model look exactly like the real thing?

B. Is incorrect because models can be updated from time to time whenever scientists find new informations

D. is incorrect because it couldnt shoow all system details and would be too large of a model to understand.

Answer: models focus on SPECIFIC details

Explanation:

I just know;) plus I took the test

What was the manipulated (independent) variable and the responding (dependent) variable?

Answers

hi, may you please give me the full question.

Complete the sentence using one of the following
words:
toxins, waste or food.
Working together, organ systems eliminate bodily
and provide required substances to all cells in the body.

Answers

Answer:

food

Explanation:

food is a required substance that works together with the body to keep you alive :)

Define Histology
will give BRAINLEIST

Answers

Histology, also known as microscopic anatomy or microanatomy, is the branch of biology which studies the microscopic anatomy of biological tissues. Histology is the microscopic counterpart to gross anatomy, which looks at larger structures visible without a microscope

Difference between bacteria and fungi

Answers

Answer:Bacteria and Fungi both come under different categories. Bacteria is the prokaryotic cell while the fungi are Eukaryotic cells. On the other hand, fungi grow their own and are heterotrophs and hence depend on others for their food. ...

Explanation:

Define the concept of "risky behaviour" and explain two factors why it is important for youths to investigate and be knowledgeable about it

Answers

Behavior of an individual that may result in negative consequences

what is inertia ? write down the relation between mass and inertia?

Answers

Answer:

The tendency of an object to resist changes in its state of motion varies with mass. Mass is that quantity that is solely dependent upon the inertia of an object. The more inertia that an object has, the more mass that it has. A more massive object has a greater tendency to resist changes in its state of motion.

how air pollution affects environment and living thing

Answers

Answer:

Air pollution is harmful to human beings and other living things. Breathing polluted air increases the risk of developing lung diseases such as asthma and lung cancer. Breathing bad air also increases the chances of dying from other diseases. Children are most likely to be affected by air pollution

Explanation:

They can increase the risk of heart and respiratory diseases, as well as lung cancer. Ozone is a major factor in causing asthma (or making it worse), and nitrogen dioxide and sulfur dioxide can also cause asthma, bronchial symptoms, lung inflammation and reduced lung function.

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Explique por qué a los protistas se le consideran un grupo polifilético-

Answers

Answer:

I don't know

El reino de los protoctistas es un grupo polifiletico, es decir formado por varios filos, se caracterizan porque son organismos unicelulares eucariotas. Son organismos acuáticos de vida libre, aunque tambien los hay parásitos. el reino protoctista se divide en dos grandes grupos, los protozoos y las algas.



I hope it made sense x

Tomato plants grown with music will have more tomatoes.
What is the independent variable *

Answers

Answer:

The independent variable is whether or not the tomato plants are grown with music.

Explanation:

An independent variable is what is changed during an experiment to produce different results.

Answer:

The independent variable is the plants grown with music.

Explanation:

An independent variable is something directly changed/manipulated by the scientist(s).

Btw, congrats on your first question!

an organism that invades a region can have negative consequences and not region what kinds of shifts can take place?

Answers

Invasive species provoke significant damages in the structure of native ecosystems. They also cause economical and socio-cultural problems.

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When talking about dispersion we refer to the change in a species´ range or distribution area.

When a species move and establish in a new area out of their original distribution range, they might be considered exotic or invasive, according to their

reproductive rate, population growth, and interaction with native species.

The introduction of invasive species has ecological, economic, socio-cultural consequences. Once an invasive species has been established, it overgrows. In the new areas, these species have less environmental pressure and better conditions than in their origin area -fewer predators, more resources, better nitches-, and these factors favor their establishment. They interact with native species by competing for resources such -water, place, radiation, exposure, shelter, food, etcetera-. They provoke significant damages in the structure of native ecosystems, causing severe damage in endemic species. They produce ecological imbalances in the trophic chains and the dynamics of communities. Invasive species are uncontrollable.

As they expand, they can also affect human in an economical manner and has socio-cultural effects. Many invasive species might cause crops loss by eating cultures. They attack farm animals. They affect buildings and other structures or ships by eating wood. They might even attack humans and cause health problems.  

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Hello i need hell to answer this, thank you in advance <3 (The subject is science)
and please take your time, again thank you in advance. <3
(I’m sorry if I got the subject wrong from the above)

1. Which is not part of the respiratory system?

a. bronchus b. nasal cavity
c. esophagus d. trachea

2. A long-term smoking habit can destroy the cilia along the lining of the air passages. How could this affect a smoker’s health?

a. the smoker will have very limited air.
b. the smoker will have difficulty in breathing.
c. the smoker’s respiratory tract will be blocked.
d. the smoker will not be able to filter pollutants.

3. In which blood vessel does the exchange of nutrients and wastes happen?

a. arteries b. capillaries
c. lymphocytes c. venules

4. Which type of white blood cells is the most abundant and combats bacterial and fungal infections?

a. eosinophil b. monocytes
c. lymphocytes d. neutrophil

5. Which is the largest artery in the body?

a. aorta b. leg artery
c. lymphocytes d. neutrophil

6. Which among the following choices below is the right pathway of oxygen from the lungs to the body tissues?

a. Alveoli-blood stream-RBC-tissues
b. Alveoli-RBC-bloodstream-tissues
c. RBC-alveoli-bloodstream-tissues
d. RBC-bloodstream-tissues

7. All of the following actions are part of exhalation, EXCEPT

a. The ribcage contracts inward
b. The volume of the thoracic cavity decreases
c. The diaphragm contracts and pull downward
d. The pressure of the thoracic cavity increases

8. What is the difference between haploid and diploid?

a. Haploid contains 46 chromosomes; Diploid is 23 chromosomes
b. Haploid contains 44 autosomes; Diploid is 6 sex chromosomes
c. Haploid contains 6 sex chromosomes; Diploid is 44 autosomes
d. Haploid contains 23 chromosomes; Diploid is 46 chromosomes

9. How many pairs of autosomes do human body?

a. 20 pairs b. 21 pairs
c. 22 pairs d. 23 pairs

10. Genetics is a branch of science that studies heredity and variations. How will you be able to describe heredity?

a. It is the study of genes.
b. It is the study of variation.
c. It is responsible for the uniqueness of individual.
d. It is the passing of traits of parents to their offspring.

11. All of the following are Non-Mendelian inheritance, EXCEPT

a. Segregation
b. Condominance
c. Multiple Alleles
d. Incomplete Dominance

12. Gene is a part of a cell that controls or influences the appearance and growth of a living organism. Where are genes specifically located?

a. Inside the cell.
b. Segment of the DNA.
c. Inside the chromosomes.
d. Segment of chromosomes.

13. Nadine who is a homologous dominant curly hair (CC) married James, a heterozygous dominant (Cc), and gave birth to a jolly and beautiful curly hair girl named Jadine. What principle of inheritance was shown in the result?

a. Dominance and Recessiveness b. Segregation
c. Independent Assortment d. Incomplete dominance

14. In carnations, when a red flower is crossed with a white flower, pink is produced. What principle of Inheritance was shown in this breeding result?

a. Condominance b. Segregation
c. Sex-linked Traits d. Incomplete dominance

15. Why is biodiversity important to ecosystems?

a. It increases at each level of the food chain.
b. It helps population adapt to ecological changes.
c. It reduces the number of insects in a given ecosystem.
d. It allows animals to feed permanently from specific type of plant.

Answers

Answer:

1). c

2) d

3) b

4) c

5) a

6) a

7) d

8) d

9) c

10) d

11) a

12) c

13)

14) d

15)

Based on this image of a
container with a
selectively permeable
membrane, which way
will the water move if the
solute concentration is
higher on the left than
the right?
A. Water will move from right to left
to get the concentration of solutes
at equilibrium.
B. Water will move from left to right
to get the concentration of solutes
at equilibrium
C. The water will not move because
equilibrium is not necessary.

Answers

Answer:

(A):Water will move from right to left to get the concentration of solute at equillibrium.

The diaphragm can be classified as part of which two organ systems?(1 point)
A. muscular and respiratory
B. immune and skeletal
C. muscular and nervous
D. circulatory and respiratory

Answers

Answer:

D. circulatory and respiratory.

Explanation:

not sure though

Answer:

A. is the answer

Explanation: took the quick check.

Anyone know how to do this if so can u help me out pls!!!

Answers

1. 1000000 g
2. 62cm
3. ??
4. 8.45 ( not sure)
5. 0.825 m

Answer:

1) 1000000g

2) 62 cm

3) 8.7535 daL

4) 8.5 L

5) 0.825 m

6) 8.54e-7 kL

7) 1000000mg

8) 85.4578 km

What is an example of positive feedback?
A)A herd of buffalo running away after one of them spots a lion
B)A pressure cooker valve opening to reduce the high pressure inside
C) A computer screen dimming or when the battery gets low
D) A thermostat switching on an air conditioner when the temperature gets too hot

Answers

Answer:

D) A thermostat switching on an air conditioner when the temperature gets too hot

Explanation:

All other answers choices are negative feedback.

hope this helped!

A thermostat switching on an air conditioner when the temperature gets too hot is an example of positive feedback. Option D is correct.

Positive feedback is a process in which a change in a system causes further changes in the same direction, leading to an ever-increasing effect. In the case of a thermostat, the increase in temperature causes the thermostat to switch on the air conditioner, which cools down the room. This cooling down causes the thermostat to switch off the air conditioner, which then allows the temperature to rise again. This cycle continues until the temperature reaches a desired level.

In negative feedback, a change in a system causes other changes in the opposite direction, leading to a return to the original state. For example, when a herd of buffalo runs away after one of them spots a lion, the other buffalo will also run away, which will reduce the number of buffalo in the herd that are in danger. This will eventually lead to the herd returning to its original state. Option D is correct.

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What are reactants in a chemical reaction?(1 point)

substances that are formed by reactions



outputs

inputs


substances that speed up reactions

Answers

Answer

D

Explanation:

inputs are the substances put in to make a chemical reaction.

The reactants are the inputs that are combined to form a product. The correct option is C.

What is a chemical reaction?

A chemical reaction is a process that converts one or more substances, known as reactants, to one or more different substances, known as products. Chemical elements or compounds are examples of substances.

The most important types of events in the universe are chemical reactions. Plants grow, produce fruit, and decompose to become compost for new plants through chemical reactions.

Humans (and all other animals) reproduce, digest, grow, heal, and think as a result of chemical reactions.

Nuclear reactions are processes that involve the atomic nucleus. Reactants are the input substances that take part in a chemical reaction.

Products are the substances that are formed. The properties of the products differ from those of the reactants.

Thus, the correct option is C.

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What evidence exists for the theory of evolution?

Answers

Answer: A scientific theory is a well-substantiated explanation of such facts. The facts of evolution come from observational evidence of current processes, from imperfections in organisms recording historical common descent, and from transitions in the fossil record.

Explanation:

What is The Semmelweis reflex?

Answers

Answer: unconscious bias

Explanation:

Answer:

The tendency to reject new evidence or new knowledge because it contradicts establish norms, beliefs or paradigm

Part A
Describe the natural environment of the species in terms of abiotic and biotic factors,

Answers

Answer:

Abiotic and biotic factors make up an ecosystem. Abiotic factors are the non-living parts of an environment. These include things such as sunlight, temperature, wind, water, soil and naturally occurring events such as storms, fires and volcanic eruptions. Biotic factors are the living parts of an environment, such as plants, animals and micro-organisms.

Together, they are the biological factors that determine a species' success. Each of these factors impacts others, and a mix of both is necessary for an ecosystem to survive.

How does an
enzyme speed up a chemical
reaction?

Answers

Answer:

By lowering the activation energy

Explanation:

Enzymes are biological catalysts. Catalysts reduce the activation energy for reactions. The lower the activation energy for a reaction, the quicker the rate. Common enzymes convert shape when substrates unite. Enzymes lower the activation energy required to turn a reactant into a product. Consequently, an enzyme-catalyzed reaction pathway has a smaller energy activation to succeed ere the reaction can progress. Therefore, enzymes speed up reactions by lowering the activation energy.

Which is longer- a centimeter and an inch? By how much?

Answers

Answer:

In terms of distance, an inch is longer than a centimeter. 1 in = approx. 2.54 cm.

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