what step does every scientific experiment begin with?

Answers

Answer 1

Answer:

make objective observations.

Explanation:


Related Questions

Someone plz help me :(

Answers

The answer to the question is B

Answer:

32

Explanation:

how does the phospholipid bilayer form

Answers

Answer:

Being cylindrical, phospholipid molecules spontaneously form bilayers in aqueous environments. In this energetically most-favorable arrangement, the hydrophilic heads face the water at each surface of the bilayer, and the hydrophobic tails are shielded from the water in the interior.

Explanation:

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during which of the following processes do sister chromatids separate from each other?

Answers

Answer:

Sister chromatids separate from each other during anaphase of mitosis and the anaphase II of meiosis II. During the anaphase stage of mitosis these chromatids separate and one chromatid goes into each daughter cell. During cell division they are separated from each other and each daughter cell receives one copy of the chromosome.

Explanation:

What causes muscles to get sore?

Answers

When muscles are required to work harder than they're used to or in a different way, it's believed to cause microscopic damage to the muscle fibres, resulting in muscle soreness or stiffness. DOMS is often mistakenly believed to be caused by a build up of lactic acid, but lactic acid is not involved in this process.

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What is the function of active transport in moving small molecules and ions across the cell membranes? Give an example.

Answers

Active transport enables cells to move some materials against a concentration gradient. For example, cell can concentrate substances such as sodium and potassium ions in particular locations.

Hope this helps

D. How is the energy produced by respiration stored?

Answers

Answer:

the nucleoside triphosphate ATP

Answer:

Respiration releases energy - it is an exothermic process. The energy is stored in molecules of ATP . ATP can be broken down in other processes in cells to release the stored energy.

Explanation:

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Why do we have high and low tides?

Answers

Answer:

It often accompanies a new moon and when the moon is closest to the Earth. The moon's gravitational pull on the Earth and the Earth's rotational force are the two main factors that cause high and low tides. Tides move around the Earth as bulges in the ocean.

what is the ultimate source of energy for almost all organisms?

Answers

Answer: The sun. The sun fuels all plants which fuels the animals, which fuel people.

Answer:

The sun

Explanation:

how does the cell membrane aid the cell in maintaining homeostasis?

Answers

Explanation:

Cell membranes enable organisms to maintain homeostasis by regulating the materials that may enter or leave a cell.

Some materials easily cross the cell membrane without the input of energy, other materials require energy input in order to cross through the cell membrane.

Resource partitioning reduces the number of species that can share a given resource.


True

False

Answers

Answer:

true

Explanation:

When two species compete with one another for the same resource, their niches overlap. Resource partitioning reduces the number of species that can share a given resource. Some bats prey on certain moths, hunting them using echolocation. i.e. bats, have evolved to change the frequency they use for echolocation.

9th grade biology please help it’s crazy because I’m in 10th grade asking for help on 9th grade work

Answers

Answer:

Mitochondria

Explanation:

They generate most of the chemical energy needed to power the cell's biochemical reactions.

Hope this helps! Sry if I get it wrong!

Answer:

free

Explanation:

The human population can maintain an exponential growth rate indefinitely because humans are exempt from population crashes.


True

False

Answers

Answer:

Most likely false

Explanation:

Humans aren't exempt from population crashes, if we spent up our recourses, started wars, etc. It HAS happened before, so most likely false.

science a:Class B;kingdom c:order or d:phylum​

Answers

Answer:

A. Class

Explanation:

Kingdom can be answered but the most specific is class

define dark reaction ?​

Answers

Answer:

: any of a series of chemical reactions in photosynthesis not requiring the presence of light and involving the reduction of carbon dioxide to form carbohydrate especially : calvin cycle.

PLEASE HELP ASAP I REALLY NEED HELP PLEASEEE 02.08 What's Your Big Idea?
You have previously written the introduction to your compare and contrast article. Now you will write the two body paragraphs to continue your compare and contrast article.
Note: One body paragraph is to compare similar features of both of your two chosen articles, and the other body paragraph is to contrast different features of both of your chosen articles. The body paragraphs are not summaries of each article.

View the grading rubric as you complete your assignment. This is your guide to a super submission.

You have previously written the introduction to your compare and contrast article. Now you will write the two body paragraphs to continue your compare and contrast article.
Be sure to use the information you previously wrote in your Compare and Contrast Organizer.
In your body paragraphs, remember to include:
Topic sentence for each body paragraph that relates to thesis
Support for your topic sentence with facts from your research
Signal phrases to identify ideas that are not your own
One direct quote, correctly punctuated
Transition phrases at the beginning of each paragraph
Technical language to show your understanding of the topic
Body paragraphs that compare and contrast two helpers
Write three or more complete sentences in each paragraph
Write in formal style using the third person point of view.
Use correct grammar, punctuation and spelling.
Add your introduction to the body.
Save your work to your computer or drive.
Submit your work in 02.08 What's Your Big Idea?
If needed, review your chosen articles.

Read the articles.
Article 1-Minutes That Matter
Article 2-Defeating Dragons
Article 3-Food That Fuels

Answers

Answer:

To start off, let's discuss how these two heroes are similar. First, these heroes we are talking about are teens. Yes, you heard it here folks these people are in between the age of 14 - 18. They also both help others. For example, Brittany Bergquist and her brother Robbie take time out of their day to provide more talk time for soldiers. On the other hand, team made up of girls and boys help people that need medical assistance 24 hours a day. But most importantly they both enjoy, love, and are amazed by what they are doing.

thats paragraph one youre going to do paragraph 2 yourself because im still working on paragraph 2

Explanation:

The distinguishable between Food that fuels and minutes that matter is one's to benefit soldiers to help communicate with his family while they fight for our country.

On the other hand is to help keep their families warm during the winter for the parents working to make ends meet.

First similarity of these two are that they both used recycled items to solve their problem within their families and meet the needs in their community.

But don't forget about the smart kids that came up with the idea to recycle their belongings to solve the problem and let nothing go to waste.

Another difference is that the solution to the obstacle affected the families and households different because the circumstances were totally opposite and now a family warm while a solider can call home to his family but all with smiles on their faces.

What is Food?

Food is a substance consisting essentially of protein, carbohydrate, fat, and other nutrients used in the body of an organism to sustain growth and vital processes and to furnish energy.

The absorption and utilization of food by the body is fundamental to nutrition and is facilitated by digestion.

Plants, which convert solar energy to food by photosynthesis, are the primary food source.

Animals that feed on plants often serve as sources of food for other animals.

What is Fuel?

Fuel is a substance that is burned to provide nuclear energy, heat or power.

Materials like coal, wood, oil, or gas can provide heat when burned. Methanol, Gasoline, Diesel, Propane, Natural gas, Hydrogen are types of fuel. Nuclear energy is produced by burning plutonium.

From fuel efficiency or fuel economy, we can measure how long any vehicle could travel, which is the opposite of fuel consumption.

Fuel consumption is the amount of fuel vehicle uses to travel a particular distance.

Fuel efficiency can be measured in kilometers per liter. The efficiency with which the fuel does a conversion of energy is known as fuel efficiency.

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.

Who influenced Darwin to come up with the idea of Natural Selection (also sometimes called “Survival of the Fittest”)?

Answers

Answer:Jean Baptiste Lamarck was a botanist and zoologist who was one of the first to propose that humans evolved from a lower species through adaptations over time. His work inspired Darwin's ideas of natural selection.

Explanation:

I took the test

What is happening to the growth of a population in which death rate equals birthrate, but emigration is greater than immigration?

Answers

Answer:

Explanation:

A negative growth rate means it is decreasing. The two main factors affecting population growth are the birth rate (b) and death rate (d). Population growth may also be affected by people coming into the population from somewhere else (immigration, i) or leaving the population for another area. i mean

The growth of the population is decreasing.

Growth rate of the population depends upon:-

          -Birth rate

          -Death rate

          -Immigration

          -Emigration

What is emigration?Movement of organism from its residing place to another place.This generally happen because of certain factors like not suitable habitat, occupation, food, etc.

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what is photosynthesis

Answers

Answer:

It is the process where the plants use sunlight to gain their food.

Explanation:

Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Hope this helps!

Answer:

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar

Explanation:

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Which biome do you think had the most biodiversity? Why?

Answers

Answer:

Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes.

Explanation:

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bio

pls help!!

—————-

Answers

Answer: it's the 3rd one " the brown rabbit in parental generation heterogeneous for the fur color trait." because the brown rabbit is dominant and the black rabbit is recessive.

Explanation:

Who is credited with coming up with the
name cell ?

Answers

Answer:

Robert Hooke

Explanation:

Have a nice day

How could we model seismic waves in a different way? Come up with another model for this activity and explain the model.

Answers

Answer:

clarify please.

Explanation:

Answer:

Image result for How could we model seismic waves in a different way? Come up with another model for this activity and explain the model.

There are three basic types of seismic waves – P-waves, S-waves and surface waves. P-waves and S-waves are sometimes collectively called body waves.

Explanation:

in humans, how many chromosomes are in each gamete after meiosis?

Answers

15

If a cell has 15 pairs of chromosomes (n = 15), it has 30 chromosomes (2n = 30). At the

end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter

cell will have 30 chromosomes. At the end of meiosis II, each cell (i.e.,

"Good science" is based on evidence, and results are able to be repeated. *

True

False

Answers

Answer:true

Explanation:

true
explanation: looked it up

in the process of respiration, organisms use carbon-based molecules to make __ and carbon dioxide.

Answers

Answer:

The products of respiration are CO2, Water Vapour and Energy.

C6H1206 + O2 ➔ CO2 + H20 + Energy

In the process of respiration, organisms use carbon-based molecules to make energy and carbon dioxide.

What do you mean by Respiration?

Respiration may be defined as the process by which cells use oxygen to break down sugar and obtain energy.

The product of respiration depends on the condition where it is held. But the ultimate product that will definitely release is energy and carbon dioxide.

Therefore, In the process of respiration, organisms use carbon-based molecules to make energy and carbon dioxide.

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during dna replication the chromosomes contract and the identical halves are called

Answers

Answer:

Explanation:

Sister chromatids

During DNA replication the chromosomes contract and the identical halves are called sister chromatids.

What is DNA replication?

A double-stranded DNA molecule is copied to create two identical DNA molecules through the process of DNA replication.

Because every time a cell splits, the two new daughter cells must have the same genetic material, or DNA, as the parent cell, replication is a crucial process.

In prokaryotes, DNA replication takes place in the cytoplasm, whereas it happens in the nucleus in eukaryotes.

Before dividing, cells must copy their DNA. This promotes successful inheritance of genetic features by giving each daughter cell a copy of the genome.

The two identical copies of the DNA that are produced as a result of this replication are known as "sister chromatids," and they are connected to one another by a section of the chromosome known as the centromere.

Thus, the identical halves of chromosome is sister chromatid.

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How are a potato, a bacterium, and a human alike?
O They are prokaryotes.
o They are all made of cells,
O They are all eukaryotes,
O They all live in soil,
1
2
3
Please I need help

Answers

Answer:

All made of cells →

Explanation:

The potato, bacteria and a human is alike in the way that they all are made up of cells. The correct option is B.

What is a cell?

Cells are the fundamental cornerstones of all life. Gazillions of cells make up the human body.

They support the body's framework, absorb nutrients from food, convert those calories into energy, and perform specialized functions.

The cell, first discovered by Robert Hooke in 1665, has a rich and interesting history that has led to many of today's scientific advances.

Cell theory is a biological theory first proposed in the mid-nineteenth century that states that living organisms are made up of cells, that cells are the basic structural/organizational unit of all organisms, and that all cells originate from pre-existing cells.

Thus, the correct option is B.

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the time interval required for the formation of two cells from one is called the

Answers

Answer:

The Generation Time.

Explanation:

When septum formation is complete the cell splits into two progeny cells. The time interval required for a bacterial cell to divide or for a population of bacterial cells to double is called the generation time.

Hope this helps!! Brainliest? Anyways have a great day!! :))

Cells are living entity, which undergo division for the continuity of life and transmitting genetic information.

The time interval required for the formation of two cells from one is called the generation time.

Generation time is defined as:

The time required for a bacterial cell or population of the bacteria to double in number is referred to as generation time.

In general, generation time is the average interval of time required between the birth of an individual and the birth of offspring.

Thus, the generation time is the interval between the formation of two cells.

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What evidence exists that non-verbal behaviour is innate? (3 marks)

Answers

Answer:

Evidence that non-verbal behaviour is innate

Facial expressions should therefore be the same across all cultures and research evidence suggests expressions for anger, disgust, happiness, sadness, fear and surprise are universally recognised by most cultures throughout the world.

what is the identity of the planets ?
a:
b:
c:
d:

Answers

Answer:

A - Jupiter

B - Neptune

C - Saturn

D - Uranus

hope that hepled :DD

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