Answer:
a only cells that have cell walls
Explanation:
Have a good day
In a randomized trial, scientist try to make sure that there is only one difference between the two groups. What do we call all the things that are the SAME Between the two groups?
A. Predictions
B. Controls
C. Constant
D. Variables
Hey there! I'm happy to help!
A. Predictions are guesses you make about the result of a trial. Let's say that you want to test what will happen if you put less eggs into a cookie recipe. You could make a prediction that the cookies will be more crumbly. This is not the term for things that are the same between two groups, so this is incorrect.
B. Controls are a type of variable that isn't influenced in a unique way as part of the experiment. This is to be able to compare the things you change to a thing that hasn't changed. With our cookie example, a control group would just be a cookie recipe with the normal amount of eggs. Then we can compare a normal cookie to one with less eggs. We see that a control is a type of group, and not a specific thing that is similar or different between the groups, so this is incorrect.
D. Variables are things that can change or vary in your experiment. There are independent variables, which are things that you change, such as the number of eggs in the recipe. Then, you have dependent variables such as color, texture, taste, etc. However, these can change depending on the group because the number of eggs could switch, so this is the wrong term and incorrect.
C. Constants are things that you do not change as part of your experiment. You do not change these variables. In our case, the constants will be all of the other ingredients like the amount of flour, milk, water, sugar, etc. If we have a control group and a group with less eggs, these things will remain constant in both of them. So these things are the same between the two groups, so this answer is correct.
We call the things that are the same between the two groups C. constants.
Have a wonderful day and keep on learning! :D
Pls help me answer thank you
Answer:
b is the correct answer
Explanation:
hope it helps u..
Enzyme is lock or Key?
Q: Predict the final masses of the following dialysis tubes.
Dialysis tube is semi permeable membrane which is made of cellulose acetate. This tube is used during the dialysis process.
The initial mass and final mass of dialysis tube will differ.
Initial Mass Final Mass Difference is mass
0 M Sucrose 29.13 g 29.93 g 0.8 g
0.2 M Sucrose 28.37 g 29.97 g 1.6 g
0.4 M Sucrose 30.84 g 33.04 g 2.2 g
0.6 M Sucrose 27.56 g 35.36 g 7.8 g
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what is the definition of Concentration Gradient?
Bacillus anthracis is the causative agent of anthrax.
a.True
b. False
Which of the following are measurable? (Select all that apply)
✓ How often a plant is watered
✓ How much sunlight a plant receives
Seeing the pretty leaves on a plant
The actual number of new leaves on a plant
Answer:
a
Explanation:
well of you use a cup to give a plant water you can measure how much it drinks
The measurable factors are A) How often a plant is watered, B) How much sunlight a plant receives, D) The actual number of new leaves on a plant.
Options (A) (B) & (D) are correct.
Measurable factors are those that can be quantified or expressed numerically. A) The frequency of watering can be counted and tracked over time. B) Sunlight can be measured in terms of intensity, duration, or light levels. C) "Seeing pretty leaves" is subjective and not quantifiable.
D) The actual number of new leaves is a concrete count, making it measurable. When studying or managing plants, it's essential to focus on quantifiable aspects, like watering frequency, sunlight exposure, and counts of observable changes, for accurate analysis and decision-making.
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The complete question is:
Which of the following are measurable? (Select all that apply)
A) How often a plant is watered
B) How much sunlight a plant receives
C) Seeing the pretty leaves on a plant
D) The actual number of new leaves on a plant
Which phrase describes a protobiont?
brown goo
primordial soup
warm little pond
early life form
Answer:
Its early life form. I got it right
Explanation:
describe the possible long term effects of HIV on the immune system
Explanation:
HIV attacks a specific type of immune system cell in the body. It's known as the CD4 helper cell or T cell. When HIV destroys this cell, it becomes harder for the body to fight off other infections. When HIV is left untreated, even a minor infection such as a cold can be much more severe.
During Transcription, an)
is created in the
A. mRNA strand, nucleus
B. polypeptide chain, nucleus
C. protein, cytoplasm
D. tRNA strand, cytoplasm
Answer:
A. mRNA stand, nucleus
Explanation:
Transcription is defined as the process of copying DNA. This happens so that the cell can produce the proteins necessary for basic life functions.
DNA cannot simply be taken out of the nucleus that easily. So, the DNA must be copied into a different form. That's what RNA is for, specifically mRNA.
mRNA stands for "messenger RNA", which is a copy of DNA that can be transported outside the nucleus and be read to produce proteins in ribosomes.
Transcription happens in the nucleus, where the DNA is housed in. It can't be located anywhere else anyways since DNA cannot leave the nucleus.
Therefore, our answer is A.
Topic: AP Biology
Brainstorm and write at least 3 potential challenges or important points to consider when conducting the described
data collection
Example: repeated trials are not mentioned, and this would be important for optimal data collection
A)
B)
C)
The three(3) potential challenges or important points to consider when conducting a data collection are described below.
Data collection is a detailed process that is used in gathering and measuring information from a selected source by a researcher.
To perform a data collection, the following important points are to be considered :
Cost of data: before data collection, a researcher should check if the data that is being considered is affordable. this is done to avoid quitting.Accuracy: there are different types of data collection techniques these include: questionnaires, interviews, focus groups, observation and case studies. the data collection technique that should be chosen should provide the most accurate results.Validity of data: if your findings will truly represent the phenomenon you are claiming to measure, then the data collected is valid.Therefore the above important points needs to be considered during data collection.
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What is the summer sleep of frog called??
Answer:
answer is aestivation
Explanation:
Love ya bye!
Fitness in an evolutionary sense is measured in:
a. Number of viable offspring produced
b. Physical appearance
c. Lifespan
d. Ability to survive
Answer:
D. ability to survive
"The central concept of natural selection is the evolutionary fitness of an organism. Fitness is measured by an organism's ability to survive and reproduce, which determines the size of its genetic contribution to the next generation."
Fitness in an evolutionary sense is measured in the ability to survive in a particular habitat. Thus, the correct option is D.
What is Fitness?Fitness may be defined as the situation of survivability of an organism under a given condition.
It is the concept of natural selection that it is only the relative fitness that estimates the existence or extinction of species in a particular habitat.
The Relative fitness of an organism overall depends on relative survival and relative reproduction.
Therefore, Fitness in an evolutionary sense is measured in the ability to survive in a particular habitat. Thus, the correct option is D.
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Can someone please help me on number 11
Answer:
what is number 11
Explanation:
what could a human living millions of years ago have in common
What are your options, kid?
The force that pulls planets toward the Sun is called
gravity
magne
Offerentiation
Answer:
The force that pulls planets towards the Sun is called gravity.
24. Approximately how wide is each time zone?
a. 15"
b. 30°
e. 60°
d.180°
(*Its actually Physical Science)
Which kind of bond would occur between sodium (Na, Group IA) and chlorine (CI, Group VIIA)?
*I need this ASAP
A. ionic
B. no bond
C. metallic
D. covalent
Someone help me please lol
Answer:
what do you need help with.
Explanation:
PORQUE SE REPRESENTA EN FORMA DE PIRÁMIDES LOS NIVELES TRÓFICOS Y LA ENERGÍA?
attached below, open it (translated)
Enzymes and substrate fit together at the active site to form a lock and key mechansim. This means
a) if they don't fit, it is the wrong substrate or the enzyme is denatured.
b) substrates work on enzymes, allowing them be be denatured.
c) the shape and size of the enzymes does not matter.
d) enzymes are not specific and work on a variety of substrates.
Answer:
the answer is option b hope you understand
The lock and key mechanism of enzyme and substrate means that if they don't fit, it is the wrong substrate or the enzyme is denatured.
WHAT IS AN ENZYME?
An enzyme is a protein substance that regulates biochemical activities in living cells by acting as a catalyst. Enzymes act on substrates but they do not get changed during the process. This means that enzymes can be used over and over again. Enzymes are substrate-specific i.e. they act on specific substrates. The lock and key model explains the mechanism of action of enzymes. Enzymes attach to substrate at their active sites and act on them to form products.The lock and key model explains that if enzyme and substrate don't fit, it is either the wrong substrate or the enzyme is denatured.
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Our solar system is just a small part of the Milky Way galaxy, which is just a tiny part of the universe.
true or false
why?
Answer:
True
Explanation:
Our solar system is just a small part of the milky way galaxy. Our galaxy is a huge collection of gas, dust, and billions of stars and their solar systems and there are many galaxies in the universe. This is because of the big bang.
When it happened, many galaxies were formed and then in these galaxies many solar systems developed.
Hope this helps.
There are 3 main categories of environmental problems that have come about because of the population growth. What are they and explain how the growth of the population has brought about each one?
Answer:
i)declination of resources
ii) air, water and land pollution
iii) global warming
Explanation:
As we all know that population is increasing day by day, all the country of the world are facing rapid population growth.we are facing many problems, the population growth is increasing day by day, the more the population, the more resources we need due to this, the resources is decreasing day by day, we need more resources as there is more population, the increasing population makes more pollution due to this global warming is increasing. We know that there is no more more resources in our world if the resources is finished in this day the future generation will not be able to survive and will not be able to use such resources.we should prevent such resources for future generation also the future generation should get the chance to use such resources .the pollution is increasing day by day .we should control it .the main thing is that we should control the rapid population growth population growth should be controlled due to this global warming is increasing which is very dangerous leading to the declination of ozone layer due to which the harmful rays of sun may enter the earth which may cause various problems in us and cause various diseases due to which we may die.the main thing is that we should stop the population growth, we should conduct public awareness programmes and many more programmes to educate people. Population growth also creates deforestation as the number of people are increasing day by day they need more place to live ,they need more Land due to this they cut down the trees of forest and used to make houses there due to which deforestation takes place. we all know that deforestation is the process of cutting down trees. so the tree should not be cut down as it is the source of oxygen for all creatures living in this whole world and the main thing is that we should provide education to the children and the youth and many more. if we are educated we can stop such population growth. so the main thing is that we should stop population growth by giving education. Education is the only one way to stop such population growth.
Define Histology
will give BRAINLEIST
What properties of carbon explain carbon's ability to form different large and complex structures?
The properties that allow this are the carbon's four valence electrons, and the fact that they can bond with other carbon atoms.
what is meaning of reclusive???
Answer:
The meaning of reclusive is avoiding the company of other people, solitary.
hope it helps
Answer:
living a solitary life
Hindi m Akelapan
Prophage refers to: (please give right answer only)
Answer:
: an intracellular form of a bacteriophage in which it is harmless to the host, is usually integrated into the hereditary material of the host, and reproduces when the host does.
Which of the following types of compounds is unlike the other three?
A wax
B saturated fat
C phospholipid
D polysaccharide
Which of the following best explains why Mars' and Venus' surface temperatures vary, despite both planets having atmospheres that contain mostly carbon dioxide?(1 point)
Venus has a surface of high mountains which absorb heat.
Mars has a surface of red rocks and sand which reflect heat.
Venus has a thick atmosphere which blocks heat from the surface.
Mars has a thin atmosphere that cannot hold much heat.
Mars and Venus are the planets of the solar system and vary in their temperatures. Mars has a thin atmosphere that cannot much amount of heat. Thus, option D is correct.
What is the atmosphere of Mars?Mars has been the fourth planet of the solar system that is also called the red planet due to its red appearance. It has more amount of carbon dioxide than oxygen gas. It comprises various gases and has a thin atmosphere.
The thin atmosphere of Mars unlike Venus cannot hold the heat and transmits it back to space. Venus has a thick atmosphere that traps heat and results in an increased surface temperature. The atmospheric particle of Mars cannot retain heat and hence vary in temperature.
Therefore, option D. Mars has a lower temperature than Venus due to its thin atmosphere.
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Answer:
Mars has a thin atmosphere that cannot hold much heat.
Explanation:
bc science
difference between observation and inference
Answer: You can consult:
An observation uses your five senses, while an inference is a conclusion we draw based on our observations. It might be helpful to have some examples. Observations can be made only with the five senses.
Explanation:
I'm not sure but hope it helps.
