What is the meaning of science?

Answers

Answer 1

The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

Related Questions

Which two organs do not have glands at all? Name it.

Answers

Answer:

The esophagus and large intestine. If this is for humans

Explanation:

answer asap plz i need this for my a

Answers

They are reactants because they are present before the reaction.

Which of the following is NOT a category that is used to describe soil?


A particle size

B absorbency

C density

D texture

Answers

it would be density.
You’re answer would be “c”

What percentage of the total incoming radiation to the Earth reaches the ground?

A. 20
B. 30
C. 40
D. 70

Answers

Answer:

A. 20

Explanation:

Truth is its actually 22.5 but including that you can just round it, 20 is the best answer.

Answer:

20

Explanation:

You find a rock sample with radioactive atoms present. 25% of the original radioactive atoms were present, how many half lives have passed

Answers

Answer:

Im literally taking a test that my teacher made and i have no idea what the answer is

Explanation:

Which process occurs during the growth and development of a fertilized human egg?
(1) cell division
(2) natural selection
(3) germination
(4) evolution

Answers

Answer:

cell division

Explanation:

Answer:

option A

Explanation:

option A is the correct answer.

as for the growth and development of the fertilized egg zygote which is a single cell it divides and form new cells and became embryo and foetus later on .

hope this will be helpful to you.

plz mark my answer as brainlist plzzzz.

Emma lives in Wisconsin and wants to plant geraniums in her yard. The average daily temperature in her area is 21°C (70°F) and the nighttime temperatures are averaging 18°C (65°F). The area where she would plant the geraniums gets full sun all day. Would you suggest she plant her geraniums? Why or why not?

Answers

Answer:

Please mark brainliest

Explanation:

Yes, because geraniums live on land that has a temperature of 65 degrees F and 70 degrees F.

PLEASE MARK BRAINLIEST

What is the region that is located between Mars and Jupiter and is labeled A
in the illustration?
Solar System
А
O A. The Kuiper belt
OB. The asteroid belt
O C. The terrestrial belt
OD. The comet belt

Answers

Answer:

asteroid belt

Explanation:

region between Mars and Jupiter became the asteroid belt. Occasionally people wonder whether the belt was made up of the remains of a destroyed planet, or a world that didn't quite get started. However, according to NASA, the total mass of the belt is less than the moon, far too small to weigh in as a planet.

answer for brainlist

Answers

B!!!!!!!!!!!!!!!!!!!!!!!!!!

Animals are made up of which type of cells?

Answers

Animal cells are typical of the eukaryotic cell, so that's what they  are made out of hope it helps

Explanation:

Answer:

dog

Explanation:

The process of natural selection requires all of the following, except:

Group of answer choices:

A.) genetic inheritance through reproduction

B.) environmental pressure

C.) advanced or complex species

D.) variation of a trait

Answers

Answer:

C.) Advanced or complex species

Scientists are now studying human DNA in labs all over the world. Which are current goals for the scientists at these labs? Select three answers that apply. A. completing a full sequence of human DNA (the Human Genome Project) B. identifying the regions of human DNA that are transcribed into RNA C. identifying the regions of human DNA that bind to proteins D. analyzing the regions of human DNA that vary among individuals E. describing the molecular structure of human DNA

Answers

Answer:

B. identifying the regions of human DNA that are transcribed into RNA

C. identifying the regions of human DNA that bind to proteins

D. analyzing the regions of human DNA that vary among individuals

Explanation:

The double helix structure of the deoxyribonucleic acid (DNA) molecule was characterized and published in April 1953 by Francis Crick and James Watson. Moreover, the Human Genome Project was a project aimed at completing mapping and sequencing of the human genome. This project was completed and published in April 2003. Nowadays, scientists are focused on identifying which genes are expressed (i.e., transcribed into RNA) in specific cell types/tissues. For this purpose, it is imperative 1-to identify the promoter and enhancer regions that bind to specific proteins (transcription factors) in order to activate gene expression, and 2-to understand how genetic variation is related to gene expression patterns in specific cell types and/or in response to specific environmental stimuli.

A scientist performed an experiment during which she measured the energy transferred in each step of her experiment. The total quantity of energy transferred in all of the steps was less than the amount she measured at the beginning. What is the most likely explanation for this result?

Answers

Answer:

Option D

Explanation:

The complete question is

A scientist performed an experiment during which she measured the energy transferred in each step of her experiment. The total quantity of energy transferred in all of the steps was less than the amount she measured at the beginning. What is the most likely explanation for this result?

a) Energy was destroyed during certain steps in the experiment.

b) The steps in the experiment required more energy than was available

c) The experiments created energy that was then used up at a faster rate.

d) Some energy was transformed into unwanted heat or sound that was not detected

Solution -

Option D is correct

While transfer of energy through any medium, some energy is lost in the form of heat and light. This loss of energy is not accounted at the beginning of the process and hence the initial energy loss was zero. With the succession of the process energy kept loosing and hence the final energy count was low at all steps.

I NEED THIS ASAP!!!!!
Gravity is an example of which kind of force??
A) contact
B) noncontact
C) speed
D) direction

Answers

Answer:

I want to say B. Noncontact

Explanation:

I hope this helps!

Answer:

b

Explanation:

What is an autotroph?
Select one:

An organism that eats other organisms for food.

An organism that does not need food.

An organism that eats itself for food.

An organism that can build its own food.

Answers

An autotroph is an organism that can build its own food

Answer:

option D is correct answer of this question

Which of the following statements explains the importance of enzymes that check for and repair mistakes during DNA replication?

A
The enzymes replace the DNA with RNA
B
The enzymes speed up the rate of RNA synthesis.
C
The enzymes prevent many genetic mutations from being expressed
D
The enzymes remove many recessive gene copies from the nucleus.

Answers

Answer:

C!!

Explanation:

The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed. Thus, the option C is correct.

What is RNA polymerase?

RNA polymerase is an enzyme that aids in the transcription of DNA into RNA during transcript in the nucleus. The enzymes prevent many genetic mutations from being expressed.

Primase is an enzyme that synthesizes short RNA sequences called primers. These primers serve as a starting point for DNA synthesis during replication as the DNA polymerases cannot begin the synthesis of the new strand, they only extend it after primase begins it and primase produces RNA molecules, the enzyme can be said to be a type of RNA polymerase.

Therefore, The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed. Thus, the option C is correct.

Learn more about genetic mutations on:

https://brainly.com/question/1282397

#SPJ6

Select ALL that apply-All living things *
are made of cells
have the ability to reproduce
drink soda
are multicellular
grow and develop
use energy
respond to their environment

Answers

Answer:

All living things are made of cells, have the ability to reproduce, grow and develop, use energy, and respond to their enviorment.

Why are some genes expressed (turned on) and some genes not expressed (turned off) in a cell?

Answers

Answer:

some genes can funtion on their own

Explanation:

the distance from Earth to the moon is about 384,400 km. How many light-years is this?

Answers

Answer:

10-8

Explanation:

How is the age of the earth used as evidence of evolution?

Answers

Answer:

Explanation:

All radiometric evidence points to the age of the Earth as about 4.54 billion years old. The old age of the Earth is evidence for evolution, a change in the genetic makeup of a population over time.

Answer:

The age of the earth can be used as evidence of evolution because it withholds the past that we are capable of uncovering bit by bit. We excavate fossils buried in the ground which we use accordingly. The fossil record reveals that the deeper you go, the farther back in history you unearth. This is known as the Law of Superposition. With these fossils, we can compare and contrast the anatomy of closely related organisms and possibly uncover vestigial structures. All of which is evidence that evolution has taken place.

PLEASSSSSE HELP ME
PLS :(

The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.

What shared characteristic can be written at point X? Use complete sentences to explain your answer.

Answers

Answer:Multicellular and Eukaryotic are traits that can be true for every Kingdom past Protists on this branching tree diagram. These are the traits which were evolved that Protists just missed, plants and fungi got these traits and transferred them to their descent as well.

Explanation:

Consider the generalized cladogram of fish.

A cladogram is shown. At point B, the organism shares jaws but not bones.

A fossilized fish is found that has jaws but no true bones. Where does this fossil belong on the cladogram?
A
B
C
D

Answers

Answer:

A

Explanation:

Answer:

D

Explanation:

yes

Connect the importance between meiosis and the process of sexual reproduction. Is it possible to survive without your reproductive system? Explain.

Answers

Answer:

This can be made possible through reproductive cells undergoing meiosis since such process has specialized sex cells split and multiple after copulation. To answer the question if is it possible for a human to survive without a reproductive system, the answer is yes.

Explanation:

does coal, solar energy, hydroelectric power, or wind power take the most power

Answers

Answer:

wind power

Explanation:

on average onshore winter buying with a capability of 2.5 - 3 MW can produce more than 6 million kwh in a year minus enough to supply 1500 average EU household with electricity.

A solar eclipse occurs when the moon
1. passes into the penumbra of earth
2. passes into the umbra of earth
3. passes at a slight tilt between Earth and the sun
4. passes directly between Earth and the sun

Answers

The correct answer is passes directly between earth and the sun

Is energy recycled?

Answers

Answer:

Energy is not recycled in ecosystems and each ecosystem requires a continuous input of energy to sustain it. There is some energy transformed at each level of the food chain or food web in an ecosystem. In an ecosystem, energy is frequently transformed from one form to another

I don't know what subject to put this under, but my friend just told me she's a furry. how should I respond to this, and what should I say? thanks :)

Answers

Answer:

I mean I don't think there's any thing wrong with being a furry, try to be supportive and that you don't think of them any differently, overall just try to be supportive. :)

Answer:

Just be supportive, there is nothing wrong with being a furry.

Explanation:

What pigment absorbs sunlight for photosynthesis?

A. chloroplast
B. thylakoid
C. grana
D. chlorophyll

Answers

D . Chlorophyll is the answer

Consider the diagram of the basic structure of a bacterium. A diagram of a bacterium is labeled. Part A is the cell membrane, part B is the flagellum, part C is the nucleoid, and part D is the pilus. Which of the labeled structures in the image allows bacteria to exchange genetic material and thus evolve to be better pathogens?

Answers

Answer:

Part D: pilus

Explanation:

Conjugative pili allow for the transfer of DNA between bacteria and thus evolve to be better pathogens.

The structure in bacteria that allows them to exchange genetic material and evolve is the pili

Bacteria pili

Pili (pilus, singular) are thin, proteinous structures located on the surface of bacteria that serves as:

they help bacterial cells to attach to surfacesthey serve as channels for the transfer of genetic materials during conjugation

When genetic materials are transferred through the pilus, gene recombination occurs and bacteria evolve as a result.

More on bacterial pili can be found here: https://brainly.com/question/6168872

Though all humans start off the same way, give a brief explanation about what makes us all so different

Answers

Haha yep what they said
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