HELP I DONT KNOW IF THIS IS RIGHT

Answers

Answer 1

The correct answer would be hand lens

Related Questions

ASAP! What is the control variable?

Answers

the controlled variable is an element that is not changed throughout an experiment, because it’s unchanging state allows the relationship between the other variables being tested to be better understood.

Answer:

A control variable is the element that is constant. it does not change throughout the experiment as it helps researchers understand the effect of what's being tested by comparing it to the control variable.

The function of the nucleic acids contained in the body cells of an organism is -

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Answer:

Explanation:

Nucleic acids are the main information-carrying molecules of the cell, and, by directing the process of protein synthesis, they determine the inherited characteristics of every living thing. The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Using radio telescopes, astronomers have found evidence
that no new matter is forming in the universe, which is
what the big bang theory predicted.
This work is part of which process used in developing scientific theories?
A. Using new technology to provide additional supporting data
B. Using imagination to spark new ideas
C. Using new technology to replace outdated theories with new ideas
O D. Using new data to modify an existing scientific theory

Answers

Answer:

Explanation:

Scientific theories are explanations of natural phenomena that have been repeatedly examined and verified using the scientific process of observation, measurement, and analysis. Therefore, option (A) is correct.

What is scientific theory?

A scientific theory is an explanation of an aspect of the natural world and the universe that has been repeatedly tested and corroborated in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of the results. In other words, a scientific theory is an explanation of something that has been proven to be true through the scientific method.

Einstein's Special Relativity, which describes the relationship between space and time for objects moving at a consistent speed in a straight line, is one of the most well-known scientific ideas. It also happens to be one of the most controversial. Additionally, the concept of time dilation is investigated by this theory.

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Question 2 of 10
Methane gas is burned to provide heat. The chemical reaction for this
process is shown in the equation below.
CH4 + 202 -> CO2 + 2H20 + energy
What are the products in this chemical reaction?
A. O2 + CO2 + energy
B. CO2 + CH4
C. CO2 + 2H20 + energy
D. CH4 + 202
9

Answers

Explanation:

The chemical reaction is represented by a chemical equation where we use some basic elements like:

Reactants are kept on the left hand side.Products are kept on the right hand side.They are divided by a arrow which hear towards the products.

This shows that reactants are forming or giving rise to different products in the reaction.

Back to the Question:

Here a chemical reaction is taking olace, where methane is being burnt in the presence of oxygen to form the products Carbon dioxide, water and energy.

Methane + Oxygen ➝ Carbon dioxide + water + energy.

So, the arrow head is towards the CO2, H2O and energy, so they are products according to the above explanation.

Correct option is:

[tex] \large{ \boxed{ \bf{ \purple{Option \: C}}}}[/tex]

And we are done !!

#CarryOnLearning....

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The three factors that created gemstones are??
I need an answer asap

Answers

Answer:

Molten rock and associated fluids. Environmental changes. Surface water. Gem formation in the Earth's mantle.

Identify the chemical change below

A.a piece of wood burns in a fire
B.two pieces of paper are stapled together
C.a large log is cut into boards
D.water is removed by drying wet clothes on a laundry line

Answers

A peice of wood burns in a fire is the answer

Choose all of the physical changes:

(There are FOUR)

Group of answer choices

tarnish

evaporate

bend

react

melt

explode

dissolve

Answers

Answer:

evaporate, bend, melt, dissolve

Explanation:

Explain what is meant by a compound. Give an example. How do compounds form?

Answers

Answer:

the two or more things that combined together is called compound.

Explanation:

example:

when the element NA and CL combine together form compound NACL.

Match the level of ecological organization described by each of the statement below. The birds,insects,plants,fungi, and other organisms that reside in a nearby wetland

Answers

Answer:

Community

Explanation:

The community is the compilation of the different plant and animal species population in a designated area at a particular time that interact with each other. The different species in a community have interactions with one another based on trophic levels and the supply and provision of nutrition for survival

The ecological level above the community level is the ecosystem, which is concerned with the biotic and abiotic interactions

Beloe the community level is the population, which are the number of a particular species in a location at a given point in time.

TOR kinases are enzymatic proteins found in a diversity of species, from yeasts to mammals. They serve in a phosphorylation cascade that promotes progression through the cell cycle. What evidence would confirm that eukaryotes share a common ancestor with regards to cell signaling pathways?

Answers

Answer:

By phylogenetic analyses

Explanation:

The target of rapamycin (TOR) is a major regulator of growth only found in eukaryotic organisms. The TOR pathway is known to regulate critical cellular processes including, among others, cell growth. The TOR protein is a kinase capable of activating translation by phosphorylation of the ribosomal S6 kinase (S6K) and the eukaryotic translation initiation factor 4E binding protein (4E-BP). In this regard, phylogenetic studies have shown that this pathway involves duplication events of ancestral kinases, as well as sub-functionalization of the S6K kinase.

43, Square root of 40 , Square root of 13 , Square root of 7 , 14 over 9

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Answer:

Explanation:

Compare ionic solids and liquids

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at room temperature and normal atmospheric pressure, covalent compounds may exist as a solid, a liquid, or a gas, whereas ionic compounds exist only as solids. ionic compounds exist in stable crystalline structures. therefore, they have higher melting and boiling points compared to covalent compounds.

Where as ionic Compounds exist in a stable Crystalline structures therefore they have higher melting and boiling points compared to COVALENT Compounds

the search for crude oil is known as

Answers

Answer: answer below.

Explanation: Research for crude oil is also known as Petroleum.

Plz help ASAP thanks!!

Sodium(Na), magnesium (Mg) and sulfur (S) are all in the same_____

A:group
B: Period

They have the same number of____

A:Valence electrons
B:Electrons shells

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Answer:

Sodium, Magnesium, and Sulfer are all in the same period meaning they have the same number of electron shells.

Explanation:

Periods are rows in the periodic table. The number of Valence electrons grows across the period (left to right) until reaching the electron shell's capacity.

Groups occur in columns in the periodic table and all have the same number of valence electrons, and the number of electron shells increase as you move downward on the table

Give one example of how the testing of Platismatia glauca could benefit future ecological research of this forest.

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Answer:

Testing Platismatia glauca could help scientists understand which pollutants have the largest effect on lichen populations. It also may help scientists understand the current pollutant levels in the atmosphere compared to the population of lichens on the trees. This information can help them more accurately predict population changes over time.

hope this helps:)

is wind alive?
Does it grow, reproduce, respond to stimuli or evolve?

Answers

Answer:

Nope

Explanation:

Wind is neither living or dead. Wind does not grow, reproduce, respond to stimuli or evolve. Wind is just wind

Wind is neither dead or alive

Which element is found in nucleic acids but not in amino acids

Answers

Answer:

Phosphorus

Explanation:

Answer:

Phosphorus

Explanation:

I took the quiz

explain why a large tree and a crop such as rice or maiz are both classified as plant

Answers

Answer:

because the all need sun, and oxygen, water to grow. I really don't know how to answer so I hope the answer above help sorry if it doesn't

Explanation:

Answer:

they both produce their own food

Explanation:

photosynthesis is a large part of their life

When members of populations do not mate with each other or cannot produce fertile offspring, they are

Answers

Jorge hailey manny Harley

List the characteristic features of epidermal cells.

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Answer:

Epidermal cells are tightly linked to each other and provide mechanical strength and protection to the plant. The walls of the epidermal cells of the above ground parts of plants contain cutin, and are covered with a cuticle.

-identify the independent variable/dependent variable.

which plants grew taller:those in the experimental group or those in the control group?

-Describe why this is a controlled experiment.

Answers

Explanation:

a control group does not. They should be identical in all other ways.

Which one of these is not a volcanic island arc? (Consult a plate tectonic map if needed) Group of answer choices Hawaiian Islands Japan Indonesia Aleutian Islands

Answers

Answer:

Hawaiian Islands

Explanation:

A volcanic arc is made of volcanoes and is formed above the subducting plate and examples include the marina island in the pacific ocean and lesser Antilles. Sundra arc is a volcanic arc and the Hawaii islands are an example of the linear chain of volcanoes.

is auxin one of the most important group of plant hormones

Answers

Answer:

yes they are

Explanation:

because auxin are the most important hormones involved in adventitious root formation.

Answer:

Yes!

Explanation:

Auxin is one of the MOST important group of plant hormones! They promote the growth that is needed for plants. They produce the stems and the buds, and the tips of the roots for the plants. Without it, things would go bad, and a lot of things would go awry.

I really hope I helped you with this question!

Which statement best explains a way in which a cell gets rid of wastes?
A. The nucleus provides the instructions for making proteins from
amino acids.
B. A chloroplast converts energy from sunlight into organic matter.
C. Mitochondria change energy stored in organic compounds into a
usable form.
D. Vacuoles merge with the cell membrane and then open.

Answers

Answer

D. Vacuoles merge with the cell membrane and then open.

Explanation:

Answer:

Explanation:

I took the ∆pex quiz

At birth, what is the average number of red blood cells per
mm of blood?

Answers

Baby girls are 4.1mm
Baby boys a 3mm

5.1 million cells per cubic millimeter

The stage of the stress response in which the pituitary gland releases a flood of adrenocorticotropic hormones is

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Answer:

This is Alarm.

Explanation:

Adrenocorticotropic hormones and stress.

This the hormones secreted at the corticotrophs cells of the anterior pituitary glands.Its major function is to ensure the efficient functioning of the Adrenal gland and body response to stress.It is also mediate the secretion of cortisol from the cortex of the adrenal gland into the blood stream.When it is released into the blood streams it binds to the receptors in the adrenal gland to stimulate the release of cortisol hormone.

ACTH controls diurnal (circadian) rhythm in human.This is because it peaks in the morning and progressively reduced towards the end of the day,with lowest concentration during period of sleeping.

Generally stress either by dehydration or internal complications,leads to increase in solute potential of the blood.Stress increases the activation of ACTH from the adrenal gland while boosting the concentration of cortisol. When the stress is sensed by the brain,this causes the release of corticotrophin-releasing hormone into the bllood.

The latter cause the discharge into the blood stream of ACTH via hypothalamic–pituitary–adrenal (HPA) axis.As this enters the blood it binds to the receptors for the cortisol secretions in the cortex of the adrenal gland to produce cortisol as explained earlier.Cortisol is the primary sex hormone which create the alarm.

Scientific laws and theories are both based on observations and evidence how are they different?

Answers

Answer:

theory explain why something happens and laws explain what happen

Explanation:

you can remember this because in the word theory there is the letter "y" so you can remember that theories explain "y"/ why

Laws explain what happen and you can remember it bc the last letter in law is w so you can remember w is what

Answer: a theory can change into a law, but a law can't change into a theaory

Explanation:

Which of these would be a disadvantage when forming a fossil? hard body parts buried quickly high oxygen atmosphere high pressure

Answers

Answer:

Explanation:

usatestprep

The disadvantage when forming a fossil is a high oxygen atmosphere, which is the second option, as the high oxygen atmosphere can lead to the rapid decay of organic matter, making it less likely to be preserved.

What is a fossil?

Because oxygen is a reactive gas that can decompose organic material when exposed to high temperatures and pressures, fossils will be destroyed in such a climate, which is why fossils are more commonly found in environments with low oxygen levels, such as deep underwater sediments or anaerobic environments like swamps and bogs. One of the main factors that determines whether or not an organism will be fossilized is the speed at which it is buried after death, if an organism is buried quickly, it is less likely to be disturbed or exposed to scavengers.

Hence, the disadvantage when forming a fossil is a high oxygen atmosphere, which is the second option.

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the question is incomplete, complete question is below

Which of these would be a disadvantage when forming a fossil?

hard body parts buried quickly

high oxygen atmosphere

high pressure

7. Mrs. Everhart developed the theory that all bulldogs are great pets. After all her bulldog Meatball is a
wonderful dog! Is this statement a scientific theory? Why or why not.
finoccientific method

Answers

Answer:

No it is not a scientific theory.

Explanation:

An explanation of any aspect of the natural phenomenon of the world that can be tested several times and well supported by the evidence, and follows the scientific method. Furthermore known as scientific theory.

Presently, a logical hypothesis must meet a few rules, and one of those is that it must be upheld by a few (and free) strands of proof.

For this situation, we have just one hypothesis, that bulldogs are great pet and Meatball is great among bulldogs, and it isn't sufficient, at that point it can not be a scientific theory.

Why is technology not the solution to all scientific problems?

Answers

Answer:

Science can not solve all of our problems. While scientific understanding can help battle things like disease, hunger, and poverty when applied properly, it does not do so completely and automatically. Furthermore, there are many areas of life where science can have little impact.

Other Questions

Europe is facing twin questions - one about migration and immigration and the other about a shrinking native population. Taken together these issues have the potential to reshape this region in fundamental ways. Please read the article titled "Here's Why Europe Really Needs More Immigrants" and watch the video below. You should also review Migrant crisis_ Migration to Europe explained in seven charts. Once you have done this, please complete these two tasks below: Answer the following question in with a thoughtful and meaningful response. Whether acting in self interest or out of a desire to help their fellow man, countries often intervene to help or prevent migrants - however this comes at a cost. Please make an argument for either the threat immigration poses and why it should be limited or explain the EUs need for immigrants and why immigration should be allowed, if not encouraged? (A good answer will include examples or facts to back up and illustrate your position. 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In a large school district, all teachers from two buildings are interviewed to determine whether they believe the students have less homework to do now than in previous years. 2. Every seventh customer entering a shopping mall is asked to select his or her favorite store. 3. Nursing supervisors are selected using random numbers in order to determine annual salaries. 4. Every hundredth hamburger manufactured is checked to determine its fat content. 5. Mail carriers of a large city are divided into four groups according to gender (male or female) and according to whether they walk or ride on their routes. Then 10 are selected from each group and interviewed to determine whether they have been bitten by a dog in the last year. An object traveling at a constant 20m/sec in a circular path is changing its: why aren't two hydrogen atoms bonded together considered a compound explain. what is the pronoun in the sentence The loud music is coming from their house. Please answer this ASAP please!!!Amelia rolls two fair number cubes numbered from 1 to 6. She first defines the sample space as shown below: (1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6) (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6) (3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6) (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6) (5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6) (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6) Based on the sample space, what is the probability of getting a total of 4? Just say a simple answer, please. find the exponential nation of 3125