Question

Living plants may be valuable additions to science classrooms. Which is the most important safety consideration when planning to grow plants in a classroom?
How much light will the plants need to grow?
What type of plant food will the plants need?
Who will take care of the plants in the room?
Do the plants have any poisonous parts?

Answer 1

@Teddyiswatshecallsme

Answer 2

I would say A what do you think?

Answer 3

meeh idk i told u im so bad at it lol

Answer 4

can i ask u the second question?

Answer 5

Oh safety considerations, yeah sorry I misread that it would probably be D.

Answer 6

ok thanks

Answer 7

Conlan wants to answer the question, “Does phosphorus affect tomato fruit production?” Which statement represents a hypothesis that he can test to answer his question?
If phosphorus affects tomato fruit production, then tomatoes that are fertilized with phosphorus will have larger leaves.
If phosphorus affects tomato fruit production, then phosphorus should be added to the soil during planting.
If phosphorus affects tomato fruit production, then adding phosphorus to the soil will make tomatoes taste better.
If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.

Answer 8

Was it correct?

Answer 9

the plant question?

Answer 10

Yeah

Answer 11

idk we have to answer all the questions first then it will show what was right and what was wrong

Answer 12

Oh okay.... What school do you go to?

Answer 13

freeman :p

Answer 14

I would say D because if it effects their production then the amount of Tamatoes produced would depend on how much fertilizer used....

Answer 15

Freeman?

Answer 16

yeah freeman high school

Answer 17

Oh it isn't an online school?

Answer 18

it's not but im talking the bio online in e2020 class

Answer 19

Okay okay.. Next question?

Answer 20

One way that scientists ensure that data is reliable is through
data display.
replicating experiments.
Internet research.
clear explanation.

Answer 21

I would say replicating experiments...... But i really don't know :P

Answer 22

yeah that's what i thought

Answer 23

A lightweight material is being tested for effectiveness in blocking ultraviolet (UV) rays from the sun that cause skin to burn and possibly develop skin cancer. Which method would be most helpful for testing this material?
Use specialized equipment to measure how much UV light passes through stacks of one, five, or 20 layers of the material.
Test the material in controlled natural settings by using natural UV light, and measure the UV light that passes through.
Write a survey that asks people on beaches about their preferences for sunscreen and protective materials.
Test the material in a lab setting by using humans and a variety of UV light sources, and develop a scale to measure the damage that is caused to human skin.

Answer 24

I would say B...

Answer 25

A lab investigation involves using food coloring to track diffusion. Which action should students take to avoid damaging their clothing?
Wear old, stained clothing to the lab.
Wear a lab apron or lab coat over clothing.
Have plenty of paper towels for cleaning up spills.
Tuck sleeves into long safety gloves.

Answer 26

can u answer me faster please if u can cuz it's timed

Answer 27

O okay how much time do you have left?

Answer 28

30 mints

Answer 29

Okay how many more questions?

Answer 30

I would say B, btw.

Answer 31

15 :( :(

Answer 32

Okay..

Answer 33

Next question?

Answer 34

A recent encyclopedia entry about dogs cites multiple research papers done by scientists at veterinary schools. According to the article, Labrador retrievers come in two specific breeds: English and American. The English breed is described as stocky and heavy, while the American breed is described as tall and lanky. The article describes current scientific research as showing that males of both breeds usually weigh about 29-41 kg (65-90 lb), and females weigh 25-32 kg (55-70 lb). Coat colors for both breeds come in solid black, yellow, or chocolate. All labs have strong tails and webbed feet, which help them swim. Devon would like to use this information to determine if his new dog is an English or American Labrador retriever.

Which best describes the reliability of the information?
It is not reliable because only scientists can use scientific information for reference.
It is not reliable because it doesn’t talk about how to test and only gives data about the breeds.
It is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools.
It is reliable because it gives information about both types of Labradors in addition to information about other types of dogs.

Answer 35

I would say the last one.........

Answer 36

A scientist asks a question and discovers that increased temperature decreases the number of offspring that an organism produces. Then, the scientist asks a new question about the impact of climate change on the species because
the scientist’s first question was not a scientific question.
the scientist modified the hypothesis for the investigation.
the results of the investigation led to new scientific questions.
questions about the impact of temperature reflect an opinion.

Answer 37

the results of the investigation led to new scientific questions. I would say

Answer 38

(btw im not a biology genius so if you get a bad grade i am really really sorry ;-;)

Answer 39

oh damn

Answer 40

if there is any question u r not sure about just tell me

Answer 41

Okay.

Answer 42

Next question?

Answer 43

Which statement best explains why the development of a new area of science can lead to changes in a theory?
A new area of science attracts new scientists who study old theories for flaws.
A new area of science promotes experimentation from a different point of view.
A new area of science allows old theories to be reworded using new terminology.
A new area of science encourages scientists to replace old theories with modern ones.

Answer 44

I would say A.

Answer 45

Which occurs directly before forming a hypothesis?
proposing a law
drawing a conclusion
developing a testable question
analyzing experimental data

Answer 46

Developing a testable question......

Answer 47

In a recent survey of students who graduated from a large public high school, nine out of ten students reported that they passed biology with a grade of seventy-five percent or higher. What further data could be produced to be sure that this information is accurate?
a review of the students’ school transcripts
a survey of students from nearby high schools
a consult with the students’ parents
an interview of students from the previous graduating class

Answer 48

A review of students school transcripts.....

Answer 49

Which question about dinosaurs is a scientific question?
Should scientists try to clone dinosaurs from DNA remains?
Is the skeletal structure of a tyrannosaurus or brontosaurus more interesting?
How big was the average velociraptor?
Why do people believe that dinosaurs existed?

Answer 50

How big was the average velciraptor...

Answer 51

How should you test a hypothesis?
by writing a mathematical equation
by making a single observation
by performing a controlled experiment
by answering a series of questions

Answer 52

By preforming a controlled experiment

Answer 53

Suppose that Louisa is cut by broken glass during a lab accident. Which is the proper place to dispose of the paper towels that are used to clean up the blood?
broken glass container
hazardous waste container
spilled chemicals container
classroom waste container

Answer 54

classroom waste container

Answer 55

Edward Jenner’s smallpox inoculation experiment was based on an observation by a dairymaid that she could not get smallpox because she had already had cowpox. How did Jenner form his hypothesis from this observation?
He asked what would happen if he deliberately inoculated someone with cowpox fluid from another person.
He tested different existing inoculations to see which one was most effective in preventing smallpox.
He observed dairymaids milking cows with cowpox to see if the statement was true before forming a hypothesis.
He drew a conclusion about cowpox infection based on the comment he overheard from the dairymaid.

Answer 56

He tested different existing inoculations

Answer 57

Hybrid seeds are deliberately crossbred for particular traits, such as growth pattern or disease resistance. They have been hand-pollinated and are patented, often sterile, and genetically identical within food types. These plants are usually grown in a monocultural environment and are cultivated for mass production and sale. They must be sturdy to withstand mechanical picking and cross-country shipping. They do not compare to the quality and taste of heirloom plants, but they do produce large, healthy fruit that appeals to most shoppers. Unlike heirloom seeds, if one saves a hybrid seed, one will not get the same plant again.

Which statement can be removed and not affect the excerpt’s reliability?
Hybrid seeds are deliberately crossbred for particular traits, such as growth pattern or disease resistance.
They do not compare to the quality and taste of heirloom plants, but they do produce large, healthy fruit that appeals to most shoppers.
Unlike heirloom seeds, if one saves a hybrid seed, one will not get the same plant again.
They have been hand-pollinated and are patented, often sterile, and genetically identical within food types.

Answer 58

They do not compare to the quality and taste.

Answer 59

Which observation would most likely be made before an experiment?
measuring plant growth in response to different fertilizers
determining the mass of a product from a chemical reaction
counting the number of seeds that germinated after soaking in water
noticing the number of tulip plants that sprouted late in a garden

Answer 60

Measuring

Answer 61

How does a law differ from a theory?
A law is a theory that has been proven to be true and universal.
A theory is a group of hypotheses that prove a law is true.
A law is a statement of fact, but a theory is an explanation.
A theory is a proposed law that has not yet been peer reviewed.

Answer 62

C. law is a statement of fact, but a theory is an explanation

Answer 63

Some theories are developed from repeated testing of a single hypothesis. Cell theory, germ theory, and the theory of evolution all have developed from the testing of multiple related hypotheses. Which statement best explains why some theories develop this way?
A hypothesis tests many variables at once, which can lead to new hypotheses.
Multiple related hypotheses will become theories before a single hypothesis does.
Each scientist has used different wording when developing his or her hypothesis.
Each experiment reveals a different piece of information that is needed to develop the theory.

Answer 64

How many more questions/ minutes left?

Answer 65

1

Answer 66

Many variables at once leading to a new hypothesis.