true or false? all elements are compounds

Answers

Answer 1
false .. not all are

Related Questions

Suggest why it is still useful to keep Linnaeus' specimens.

Answers

Answer:

As well as changing the way living things were classified, Linnaeus also changed the way they were named. He introduced a simpler method. ... This is rather like our system of giving people a first name and a surname. Each species has its own unique binomial which is the same throughout the world, thus avoiding confusion.

Explanation:

Which is a component of cell theory?

a.All living things grow into cells.
b.All living things are made of cells.
c.Cells come from nonliving matter.
d.Cells come from non-cells.

Answers

the answer is B. all living things are made of cells

Answer:

B.

Explanation:

That's true without cells we wouldn't live.

You want to know if black squirrels or brown squirrels have a greater birth rate. Your ALTERNATIVE hypothesis is:_________.

Answers

Answer:

Natural selection is a mechanism of evolution proposed by Charles Darwin. It is the differential survival and reproduction of individual due to the difference in the phenotype. Over time, this process results in populations which are better adapted to their environment as they tend to survive and produce new offspring.  The brown squirrels with thick coat survive at a higher rate than the brown sqirrels without the thick coat. Thick coat is a adaptation for survival in cold winters which are chosen over the other and allowed to reproduce.

Explanation:

The large central vacuole of plant cells holds water and supports the shape the plant cell as created by the _______________
A. cell wall
B. chloroplasts
C. DNA
D. endoplasmic reticulum

Answers

A cell wall plz give brainliest

why are people scared of spiders?

Answers

Cause there little demon things ❤️

What is an example of behavioral isolation

Answers

Answer:

Behavioral isolation is demonstrated in species of finches. Their mating calls are distinct yet unique across species.

Explanation:

Mutations arising from errors within gene replication often accumulate within populations, becoming more stable. They may lead to the formation of separate, genetically distinct populations called species. These new species arise via:

allopatric speciationperipatric speciationparapatric speciationand sympatric speciation

Behavioral isolation is an isolating mechanism that is part of sympatric speciation. Here, there are apparent non-physical barriers to prevent mating, and several related species live within a population and gene-flow.  However, reproductive isolation occurs through assortative mating (mate choice based on shared traits) which may lead to heteropatric speciation.

Commonly observed in birds, it involves distinct and unique courtship and mating signals. Mates only respond to those fitting the required behavioral patterns such as a courtship dance, nest building, foraging and songs.

Why do polysaccharides have more energy than a disaccharide?

Answers

Answer:

While monosaccharides such as glucose provide short-term energy, polysaccharides provide longer storage of energy. Cells use monosaccharides quickly. The molecules can bond to cell membrane lipids and aid in signaling.

Explanation:

The Channichthyidae fish, also known as the

crocodile ice fish, lives in the Southern Ocean

around Antarctica. These waters are known to

maintain extremely low temperatures all year,

ranging from approximately 28°F to 35°F. These fish

have adaptations that allow them to live in cold, low

oxygen waters. (a) If you were to examine the

membrane lipid composition of cells from the

Channichthyidae fish identify what you would

expect to find. (b) Justify why you might find what

you identified in part (a).

Answers

A) If you were to examine the membrane lipid composition of cells from the Channichthyidae fish, what you would expect to find is glycoprotein,zona pellucida protein and a less number of haemoglobin that is found in this type of fish.

B) Justification of why you might find what was identified in part (A) is because;

Glycoprotein contains antifreeze compounds,these antifreeze compounds are what provide resistance to freezing of their hypoosmotic tissues by the subzero environment.

If we analyzed the lipid composition of these fish, we could find glycoproteins.

We can arrive at this answer because:

Glycoproteins are formed by a chain of oligosaccharides, linked to a chain of polypeptides, which are side chain lipids.These glycoproteins have different functions in the body.One of the most important functions is keeping the heat.This function allows heat to remain longer in an organism and heat loss to be slower.

In this case, the glycoprotein is an essential molecule in the organism of living beings that live in environments with very low temperatures, such as fish Channichthyidae.

More information:

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Insectivorous plants grow in soil deficient in nitrogen.
TRUE
False

Answers

Answer:True

Explanation:

Carnivorous plants have adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic bogs. Charles Darwin wrote Insectivorous Plants, the first well-known treatise on carnivorous plants,

the diagram below is a model that shows structural organization within a multicellular organisms. why is "tissue" listed between cell and organ?​

Answers

Because an organ is made up of several types of tissues, therefore several types of cells due to the fact that tissues are a group of cells of the same type that perform a specific function in an organism.

Which is the best description of photophosphorylation?

Answers

photophosphorylation refers to the use of light energy from photosynthesis to ultimately provide the energy to convert ADP to ATP, thus replenishing the universal energy currency in living things .

Draw a flow chart that explains how DNA is used to create an organism. please use the words: DNA, gene, protein, cell, tissue, organ, organism.

Answers

Answer:

Please find the flowchart attached as an image

Explanation:

DNA is the genetic material contained in the cells of living organisms. The DNA contains a segment called GENE, which contains information used to produce useful products needed in the cell. The information contained in the gene is expressed to produce PROTEINS.

PROTEINS are responsible for many metabolic activities that occurs in a cell. The CELL functions due to activities of the proteins produced by gene expression. When similar cells come together, they form TISSUES. An aggregation of tissues performing similar functions form ORGAN. Organs functioning similarly come together to form ORGAN SYSTEM. A collection of organ systems in the body forms the ORGANISM.

Type 1 diabetes is caused by destruction of beta cells in the pancreas that produce insulin. Which of the following best explains why a person with this disease needs medication?

a. Medication is needed to act as a signaling molecule to activate the signal transduction pathway.
b. Medication is needed to allow alternate signaling transduction pathways to control glucose levels.
c. Medication is needed to open channels to allow signaling molecules to enter pancreatic cells.
d. Medication is needed to serve as second messengers to regulate glucose uptake by cells.

Answers

Answer:

the answer is a. Medication is needed to act as a signaling molecule to activate the signal transduction pathway.

i took the quiz

Medication is needed to act as a signaling molecule to activate the signal transduction pathway. So, the correct option is (A).

What is Type 1 Diabetes?

Type 1 diabetes also called insulin-dependent or juvenile diabetes which is usually develops in children, adolescents, and young adults, but it can occur at any age. A condition in which the immune system destroys the insulin-producing cells in the pancreas. These are called beta cells.

There are several signs of type 1 Diabetes which include:

Extreme thirstIncreased hungerDry mouthUpset stomach and vomitingFrequent urination

When a person suffering from this disease needs medication which is need to act as signaling molecule to activate the signal transduction pathway. Type 1 Diabetes is characterized by a progressive loss of insulin-producing β-cells in the islets of the pancreas. Immune destruction of β-cells is partly mediated by high levels of pro-inflammatory cytokines.

Thus, medication is needed to act as a signaling molecule to activate the signal transduction pathway. So, the correct option is (A).

Learn more about Type 1 Diabetes, here:

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Select the correct answer. Claire, an ecologist, is finding it difficult to identify an interaction in nature because of changing environmental conditions and the complex indirect interactions of multiple species. Which interaction is Claire trying to find in nature?​

Answers

Answer:

e

Explanation:

Good luck!

Answer:

apparent competition

Explanation:

This is the correct answer for Edmentum

Which sentences describe the differences between photosynthesis and cellular respiration? Check all that apply. Cellular respiration uses oxygen as a reactant and photosynthesis does not​

Answers

Answer:

Cellular respiration uses oxygen as a reactant and photosynthesis does not​

Explanation:

Autotrophs use CO2 to make energy while heterotrophs use Oxygen.

Check all that apply?

You only gave one option so that's as far as I can get, sorry!

Which statement describes the motion of the water molecules in this situation

Answers

Answer:

im confused, what am i supposed to solve?

Explanation:

im ready to answer, but i dont know what im supposed to solve

SOMEONE PLZ HELP!!!!!!!!!!!

Answers

Answer:

B

Explanation:

it was a question I had last week on my test.

Answer:

endoplasmic reticulum (ER)

Explanation:

The on in the middle pls

Answers

i
think it’s gonna be false

please help me with this question:)

Answers

the answer is a golgi body

Based on your knowledge of reproduction in bryophytes and ferns, is the presence of flagellated sperm in cycads surprising? Why or why not?

Answers

Answer:

The correct answer is - All plants share a similar life cycle

Explanation:

The sperms that the bryophytes are biflagellated whereas in ferns these are multi-flagellated that helps in the swimming to the archegonia or female part to perform the fertilization, due to the presence of water.

The sperms in cycads also have flagella for the same purpose of swimming in the pollen tube. The ferns and the bryophytes both require the same or similar life cycle that includes the flagella and water for the formation of the zygote.

The presence or absence of
a. cells
b. atoms
c. molecules
provide evidence that a specimen is a living thing.

Answers

Answer:

I know it

Explanation:

cells because an humane body is made up of cells

What would be the best control group for global warming? Select one: (A)laboratory simulation,(B )a computer simulation or (C) another identical earth that has not seen increases in greenhouse gases (even though this is not possible)​

Answers

Answer:

C. another identical earth that has not seen increases in greenhouse gases

The best control group for global warming would be another identical earth that has not seen increases in greenhouse gases.

What do you mean by Global warming?

Global warming may be defined as the gradual increase in the Earth's average temperature due to the trapping of greenhouse gases by the atmosphere.

The excessive release of greenhouse gases like methane, Carbon dioxide, nitrous oxide, and ozone are responsible for global warming. These gases are released by automobiles, industrial smoke, etc.

Deforestation is also considered the cause of global warming. Trees help in the reduction of carbon dioxide from the atmosphere and convert it into oxygen.

Therefore, the best control group for global warming would be another identical earth that has not seen increases in greenhouse gases.

To learn more about Global warming, refer to the link:

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which enzyme reads and builds a complementary strand of dna?

Answers

Answer: RNA polymerase

Explanation:

Transcription begins when an enzyme called RNA polymerase attaches to the DNA template strand and begins assembling a new chain of nucleotides to produce a complementary RNA strand

Which of the following statements about meiosis is true?

Meiosis creates unique cells.

Meiosis creates identical cells.

Meiosis creates cells such as skin and muscle cells

Meiosis creates glucose in plant cells

Answers

Answer:3

Explanation:

In a typical mammalian cell, what is the average percentage of total cell weight for protein and dna?

Answers

Answer:Protein is evaluated at ≈55% of the cell dry weight, followed by RNA at ≈20%, Lipid at ≈10% and DNA at ≈3% (the rest being polysaccharides, metabolites, ions etc.).

Explanation:

A typical mammalian cell averages 18% protein and 0.25% DNA by weight composition.

According to research, a typical mammalian cell is made up of water, ions, and macromolecules such as proteins, lipids, DNA, RNA, carbohydrates, and some miscellaneous metabolites.

The water component of a typical mammalian cell is about 70%, 18% proteins, 1% inorganic ions, 3% small metabolites, 5% lipids, 0.25% DNA, 1.1% RNA, and 2% polysaccharides.

More on the components of the cell can be found here: https://brainly.com/question/1620164

what spheres would be involved and in what way?

Answers

Answer:

The lithosphere contains all of the cold, hard solid land of the planet's crust (surface), the semi-solid land underneath the crust, and the liquid land near the center of the planet.

Explanation:

Conservation of mass the mass of a whole object

Answers

Answer:

Explore the Law of Conservation of Mass by demonstrating that the mass of a whole object is always the same as the sum of the masses of its parts. All objects and substances in the world are made of matter. ... Matter has two fundamental properties: matter takes up space and matter has mass.

Explanation:

pls helppppoooopppppoppppp

Answers

Answer:

direct observation

Explanation:

Match each element or compound with the appropriate symbol or molecular formula.
hydrogen
oxygen
CO2
carbon dioxide
H20
carbon
с
water
H

Answers

Answer: Water- H2O

Hydrogen- H

Carbon- C

Carbon Dioxide- CO2

Explanation:

Answer:

hydrogen = H

oxygen = O

carbon dioxide = CO2

carbon = C

water = H2O

Explanation:

As seen in the picture below,

(Please note that these are NOT in the same order as your question.)

The commercial fishing industry uses large nets to capture fish. Often these nets catch many species of organism that are not used by humans. What Change could lessen the negative effect to this practice for the commercial fishing industry?


A. Designing nets that release unwanted species without harming them.

B. Using the net in deeper regions of the ocean where different organisms live.

C. Decreasing the size of the nets, but using more of them.

D. Exploring new and uncharted areas of the ocean where the nets can be used.

Answers

Answer:

A. Designing nets that release unwanted species without harming them.

Explanation:

Over-fishing is a negative human practice that leads to the over-exploitation of aquatic ecosystems (i.e., both marine ecosystems and freshwater ecosystems). In an aquatic ecosystem, the communities of organisms coexist in a delicate balance where they are dependent on each other in the food web, providing stability to the whole ecosystem. Therefore, the over-exploitation of any aquatic species is expected to impact the whole ecosystem, thereby also having a negative impact on other fish populations.

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