9. Why is it not reasonable to think that all variables can be controlled?
I

Answers

Answer 1

Answer:

Any given experiment has numerous control variables, and it's important for a scientist to try to hold all variables constant except for the independent variable. If a control variable changes during an experiment, it may invalidate the correlation between the dependent and independent variables.

Explanation:


Related Questions

it's funni to be rog

Answers

Answer:

facts

Explanation:

kefka pfp go brr

Answer:

Ha

Explanation:

how might the biotic and abiotic features change during different seasons?

Answers

Answer:

The biotic and abiotic features change during different seasons through various factors.

Explanation:

Biotic and abiotic factors are referred to as the living and non living components of the ecosystem respectively. An example of biotic factor include plants, animals and an example of abiotic factors are water, sunlight etc.

The biotic and abiotic features change during different seasons through various factors. Biotic factors in dry season for example will lead to a decrease in abiotic factors such as rainfall and increase in abiotic factors such as sunlight while leading to a decrease in biotic factors such as plants and animals through the lack of water vital for them.

Biotic factors in wet season for example will lead to a increase in abiotic factors such as rainfall and decrease in abiotic factors such as sunlight while leading to a increase in biotic factors such as plants and animals.

From where do autotrophs obtain their energy?
Other organisms
O From fertilizers
Other decaying organisms
O The sun

Answers

Answer:

B

Explanation:

Choose TWO human activities that can help to increase the biodiversity of the Amazon rainforest
A
creating more urban settlements
B
mining and resource extraction
C
increasing agricultural run-off
D
practicing sustainable agriculture
E
creating protected land areas
TI
introducing non-native species

Answers

The answer would be A and C
Please mark me the brainliest ty

The two activities that can help to increase the biodiversity of the Amazon rainforest are as follows:

Creating more urban settlements.Increasing agricultural run-off.

Thus, the correct options for this question are A and C.

What is Biodiversity?

Biodiversity may be defined as the sum total of all the variety of living organisms that are present on the earth's surface. In a more simple sense, it is also characterized by the number of species of all living organisms exist on the earth.

Mining and resource extraction disrupts the quality and quantity of resources that living organisms utilize in order to enhance biodiversity. The introduction of non-native species utilizes all resources present in the area of native species and furnishes the process of competition. Creating protected land areas restricts the resources at specific parts/locations.

Therefore, the correct options for this question are A and C.

To learn more about Biodiversity, refer to the link:

https://brainly.com/question/11542363

#SPJ6

Galileo and newton both study the night sky. Galileo study Jupiter and its moons. Newton study the gravitational force that held the planets in orbit. Which of these statements best explains why the two scientist propose different theories about the solar system?

a. both scientist had different interests.
b. both scientist lacked scientific evidence.
c. they wanted to be the first to discover new planets.
d. they wanted to contradict each other‘s theories.

Answers

Answer:

a. both scientists had different interests.

Explanation:

Newton focused in physics for the most part and the study of what we know now as Newton's laws

while Gallileo focused on planets and astrology

A. They’re both discovering different things

The neuromuscular junction (muscle contraction)
Label the picture?

Answers

Answer: not possible

Explanation: no picture

How does nitrogen gas make its way into the atmosphere?
O animals eating plants
O decomposition
O using denitrifying bacteria
O cell respiration

Answers

Answer:

Explanation:

Using denitrifying bacteria is the correct answer

Identify What system moves blood
through the body?

Answers

Answer:

the circulatory system

Explanation:

Answer:

The Cardiovascular System

Explanation:

The Cardiovascular System is made up of the heart and arteries which pump blood through the body.

Select the correct answer. A motorcycle is moving at a constant velocity of 15 meters/second. Then it starts to accelerate and reaches a velocity of 24 meters/second in 3 seconds. What's the acceleration of the motorcycle over this time? Use.​

Answers

the answer is 3m/s^2

Answer:

the answer is 3m/s^2 explain; 15m/s +24m/s times 3

I'll give brainlist enginuity
You're with a team of conservationists who've been assigned to control the marsh mosquito. You can't use chemicals that might harm the valuable organisms that aboung in salt marshes. Plan a strategy that will limit mosquitos without endangering the marsh ecosystem.

Answers

I would make a spray that is not harmful to the environment, but instead it kills mosquitoes. If any other animals eats this, they will not die. It is for mosquitoes specificly.

Enzymes are A.) Homogenous catalyst B.) Base catalysts C.) Acid Catalysts D.) Heterogeneous Catalysts,​

Answers

Answer:

B

Explanation:

Answer:

i want to say acid catalyst, but dont put that as your answer yet.

Explanation:

Help, middle school science

Answers

Answer:

It's the second one because the rest are wrong

Answer:

They may be used to replace dead or damaged cells

Explanation:

when cells die or damage the body makes new cell to replace them and the process is called division

What kind of features would you expect to find in a transitional
fossil between Ichthyostega and Eusthenopteron?

Answers

Answer:

hope that help you

Explanation:

Fossils or organisms that show the intermediate states between an ancestral form and that of its descendants are referred to as transitional forms. There are numerous examples of transitional forms in the fossil record, providing an abundance of evidence for change over time.

Emily has a class assignment to study conservation of energy and collisions she starts with two golf balls that hang from strings and hit each other when they swing explain how Emily's is the two golf balls that collide​

Answers

Answer

its the force of gravity

Explanation:

subscribe to my channel

Gravity an why out of all names Emily

D. None of the above are correct.
32. A hypothesis
A. a list of independent variables used in a scientific experiment
B. an educated prediction of the outcome of a scientific experiment
C. the number of treatments applied to the organisms in an experiment
D. None of the above.

Answers

Answer:

B

Explanation:

trust

Answer:

B

Explanation:

A hypothesis is a prediction you make based off the evidence you currently have to figure our what your end result will be.

Which option distinguishes why Johnny refused to eat the pie in the following scenario?
Johnny is cutting fast food out of his diet and is increasing his fruit and vegetable intake an effort to
lose weight. At a family dinner, apple pie was served for dessert, but Johnny politely declined.
The baked apples contain more sodium and nitrates than whole, uncooked apples.
O The baked apples are more nutritious than uncooked apples, but this is offset by added sugar
The baked apples contain more carbohydrates and sugar than uncooked apples.
O The baked apples in the pie are a whole food, which contains more calories than processed.

Answers

The baked apples contain more carbohydrates and sugar than uncooked apples.

what is a glycoprotein? and what is one of the uses of glycoproteins?

i'll mark you as a brainliest if you help.

Answers

Answer: it’s is proteins that are conjugated with a small number of monosaccharides or short typically branched chains of carbohydrates ( oligosaccharides). And one use of glycoproteins is they have something to do with immune system examples the molecules of as such as antibodies ( immunoglobulins) which they just interact with antigens.

Explanation: hope this help I take biology it can be tough.

Please give the answer for this!

Answers

for the first picture the stimuluis is light and the respons is phototropism(the plant is oriented towards the source of the light)

for the second picture the stimulus is the signt and smell of the food. the respons is salivary secretion

Answer:

1.

Stimulus: The light

Response: The plant gets light energy required to function

2.

Stimulus: The food in the bowl

Response: The dog digests the food absorbing nutrients needed to continue operating.

Hope this helps, feel free to give brainliest :)

HURRY IM TIMED ON THIS PLZ HURRY!!!

Answers

Answer: Aauaporin

Explanation:

Answer:

Exocytosis

Explanation:

I just did the and I got it right <3

HELPPPPP :p

Explain how precipitation happens. Use complete sentences and give at least two supporting details.

Answers

Answer:

In a general aspect, humid and warm air moves to lower latitudes or in altitude, losing heat and getting colder. Its humidity condenses and causes precipitation. Depending on the air movement there are different kinds of rain.  

Explanation:

At a global level, it occurs unequal warming of the atmosphere, which depends on many factors and varies with latitude. This occurs because solar radiation reaches the earth differently at different latitudes, resulting in big convective cells of atmospheric circulation: Hardley cell, Ferrel cell, and Polar cell.    

A convective cell is the movement of the humid air among different latitudes. Air moves from higher latitudes to lower latitudes, getting warm, getting less dense, and ascending. As the air gets higher in altitude, it´s density and pressure decrease, so the air tends to expand with elevation in response to the reduced pressure. Gases in expansion experiment adiabatic cooling, losing caloric energy as their molecules move getting farther away from each other. As the air gets higher, it gets colder, and hence, denser. The result is that descends again. Humidity gets denser and precipitates.

• Rain is controlled by temperature on the earth´s surface, atmospheric global air circulation, the position of the mountains and oceans, closure to the oceans.  

• There are different kinds of precipitations according to their origin.

i. Convective precipitation: These are the most typical ones. Air gets warmer and less dense, elevating in altitude with humidity. On the way, it starts to get colder, and the humidity condenses, resulting in precipitation. Depending o the degree of condensation, the precipitation might be in a liquid state (rain), semisolid-state (snow), or solid-state (hail).

ii. Frontal Precipitations: They occur when a polar front coming from higher latitudes collide with a warm front coming from lower latitudes, resulting in a strong rain. This is typical of grasslands or temperate forests (approximately 40 º latitude)

iii. Orographic Precipitations: They occur when humid wind ascends by a mountain range, causing its adiabatic cooling, condensing the humidity, and precipitating.  

A student noticed that when a dog is cut, the dog periodically licks its wounds. Usually
after a few days, the wound begins to heal without ever showing
signs of infection. The
following steps outline the student's line of reasoning:
1. I wonder why the dog's wound doesn't become infected.
2. The dog's saliva must prevent the growth of infection-causing bacteria.
3. I'll obtain a bacterial culture and grow the same kind of bacteria in two identical
culture dishes. Once the bacteria start growing, I'll add dog saliva to only one of the
dishes and leave the other alone. I'll cover both dishes. Then I'll observe what
happens each day for a week.
4. Even after adding the dog saliva to one of the dishes, the bacteria continued to grow
in both dishes over the course of the week. However, the bacteria in the treated dish
grew more slowly than the bacteria in the untreated dish.
5. I think I'll try something else. I'll start with two identical culture dishes, as before, and
use the same kind of bacteria in each dish, but this time I'll treat one dish with dog
saliva before I add the bacteria. I'll observe what happens each day for a week. 12.
For the dog scenario above, what is the control
Look?

Answers

Answer:

the dish the student did not add dog spit to

Explanation:

list three facts about the specific body system for endocrine system

Answers

Answer:

The endocrine system is a chemical messaging network. Endocrine glands secrete hormones, which are carried by the circulatory system throughout the body. The primary endocrine glands are the pituitary, hypothalamus, pineal gland, thyroid, parathyroid, adrenal, pancreas, ovary, and testis. Hormones maintain homeostasis in the body.

Explanation:

Hope this helps!

What is the coriollis effect

Answers

Answer:

The Coriolis effect is defined as how a moving object seems to veer toward the right in the Northern hemisphere and left in the Southern hemisphere.

Explanation:

Please give brainliest!

How does the amount of light affect how plants grow?

Answers

Answer:

Light is an essential factor in maintaining plants. The rate of growth and length of time a plant remains active is dependent on the amount of light it receives. Light energy is used in photosynthesis, the plant's most basic process.

Explanation:

Hope it helped :)

Why is mitosis so important? 3 complete sentences

Answers

Answer:

Mitosis is important because it is essential for growth and repair in the body. Mitosis happens when a parent cell divides, creating two identical copies, referred to as daughter cells. During this process, it is essential that the daughter cells are exactly the same with the same copies of DNA.

Explanation:

Which systems interact to maintain homeostasis and send electrical signals through the body?

Answers

homeostasis is what the human body does to adapt and stay healthy in their environment

Question 10 (2 points)
Careless work, fraud, biases, confirmation bias, are all examples of
O poor science
O good science
higher level science
popular science

Answers

poor science:) hope this helps

List the features of reptiles that indicate that they are higher vertebrates than amphibians.

Answers

Answer: Top 5 Characteristics of Reptiles. Reptiles Are Four-Legged Vertebrate Animals. Most Reptiles Lay Eggs. The Skin of Reptiles Is Covered With Scales (or Scutes) Reptiles Have Cold-Blooded Metabolisms. Reptiles Breathe With the Aid of Lungs.

Explanation:

where is the dna located in the eukaryotic cell

Answers

Answer:

Nucleus

I did this and I think it was right

Answer:

nucleus

The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA.

at what temperature are are particles more densely packed?

cold
warm
hot​

Answers

Hottttttttttttttttttttt
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