Check all the characteristics below that describe
elements.
one type of atom
a pure substance
more than one type of atom
chemically combined elements

Answers

Answer 1
one type of atom
a pure substance

Related Questions

While Kepler supported the Copernican model of the universe, Kepler concluded the following:
A. The circular orbits of the Copernican model weren't correct. Paths of the planets were elliptical.
B. The circular orbits of the Copernican model weren't correct. Paths of the planets were rectangular.
C. All other bodies in the universe move around the moon in triangular paths.
D. All other bodies in the universe move around the earth in circular paths.

Answers

Given the laws put forward by Kepler, we can conclude that option A is correct, he proved that the orbits of the planets were in fact elliptical.

Though options B and C are false due to the impossible nature of the shapes they describe for planetary orbits, option D is also false but is something that many astronomers once believed. It wasn't until the Kepler observations that this theory was proven to be false.

Kepler believed in the Copernican model of the universe, in which the planets revolved around the sun, but through measuring and observing the movement of mars, he would come to the realization that the orbits of the planets were in fact not circular as he and many other believed, but rather elliptical in nature.

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accordingly explain the condition necessary for respiration​

Answers

Answer:

air ,water,food

Explanation:

water: you need a lot of water so you can easy respirate

food : a good balance diet help in respirating

What is the function of restriction enzymes?
A)joins nucleotides during transcription
B)adds new nucleotides to the growing strand of DNA
C)joins nucleotides during replication
D)repairs breaks in sugar-phosphate backbones
E)cuts nucleic acids at specific sites

Answers

Answer:

Bacteria that cut DNA molecules at specific sequences.

Explanation:

In other words: E. Cuts nucleic acids at specific sites.

3. Susceptibility to antibiotics is a trait, or inherited characteristic, of bacteria.
a. What are two variations, or different versions, of this trait?

Answers

Bacteria can be SUSCEPTIBLE or RESISTANT to antibiotics. Susceptible bacteria can't grow if the drug (i.e., the antibiotic) is present.

Susceptibility to antibiotics occurs when bacterial colonies can't grow in presence of the antibiotic (e.g., erythromycin).

Some antibiotic-resistant bacteria include:

Methicillin-resistant Staphylococcus aureus (it is one of the most common antibiotic-resistant bacteria)

Vancomycin-resistant Enterococcus

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the middle ear is an what filled chamber?

Answers

Answer:

The middle ear is an air-filled chamber.

Explanation:

The middle ear is an air-filled cavity/chamber that is between the tympanic membrane and the inner ear.

Answer: Air-Filled

Explanation: :b

most elements can only be made where​

Answers

Answer:

The most common elements, like carbon and nitrogen, are created in the cores of most stars, fused from lighter elements like hydrogen and helium. The heaviest elements, like iron, however, are only formed in the massive stars which end their lives in supernova explosions.

Explanation:

list the four major types of organic compounds

Answers

carbohydrates, lipids, proteins, and nucleotides
yww lol

The part of the brain that consolidates smell into the hippocampus from the olfactory bulbs is the?

Answers

Answer:

The olfactory bulb is directly connected to the amygdala and hippocampus, which might explain why the smell of something can so immediately trigger a detailed memory or even intense emotion.

could someone help me match these? thanks also I WILL GIVE BRAINLIEST

Answers

Answer:

yes

Explanation:

bcoz i love ithbanjshdbxhjdj nahgdbehdja

The zone of active volcanoes that encircles the Pacific Ocean is known as the?

Answers

Answer:

The Ring of Fire, also referred to as the Circum-Pacific Belt, is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes. Its length is approximately 40,000 kilometers (24,900 miles).

Explanation:

The type of reasoning that is the basis of the scientific method is _____ reasoning.

Answers

Deductive reasoning is applied to the scientific method

What is the formular for carbon dioxide​

Answers

Answer:

CO2

Explanation:

one carbon atom and 2 oxygen atoms

hope this helps :)

So, he’s basically correct. But, I’ll answer it still. CO2

A student pushes a toy car along a straight track. The car travels from point A to point B in 2 s.
0
1 m
2 m
3 m
4 m
A
B
What is the speed of the toy car?
A. 0.7 m/s
B. 1.5 m/s
C. 2.0 m/s
D. 6.0 m/s

Answers

Answer:

D.

I'm not sure for that

Explanation:

di ako sigurado sa sagot ko..

what's 9+10 ijiivtrzxr7rx7r​

Answers

Answer:

19

Explanation:

Answer:

9 + 10

is 19 is your answer

which among the following elements belong to period 3 in the periodic table? ​

Answers

Answer:

The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon........

Explanation:

Thank you!!!

What is the definition of
Filtration, Reabsorption, secretion and excretion?

Answers

Answer:

Excretion is the removal of waste products made in the cells during metabolism from the body.

Filtration is the process in which fluid and small molecules pass into the Bowman's capsule

Reabsorption is when water, ions and nutrients are transferred back into the interstitial fluid via both active and passive transport

Secretion is the removal of waste products from the blood and interstitial fluid.

Filtration is the removal of solid particles from a liquid or gas by a filter. Reabsorption is being absorbed again. Secretion is the creation and disposal of A substance produced by a cell. Execration Is the process of eliminating matter

what causes brain tumar

Answers

bru im tweaking my answer didnt even make sense Imaoo

bakit mahalaga ang Pag r-recycle?​

Answers

Answer:

Bagaman ang pag-recycle ay naging isa sa pang-araw-araw na gawain ng bawat isa, maraming tao ang hindi alam Bakit mahalaga ang pag-recycle. Upang mapanatili ang kapaligiran at likas na yaman, mahalagang pamahalaan nang maayos ang mga hilaw na materyales. Para dito, ang pag-recycle ay isang napakahalagang proseso mula nang makamit namin ang pagbawas ng mga hilaw na materyales at muling paggamit at pagsasama ng siklo ng buhay ng basura sa mga produkto.

Explanation:

Why is it important for water to split in the light dependent reaction?

Answers

Answer:

Water is absolute requirement for photosynthesis to occur.

Explanation:

Blood functions as part of the ____ system and the ____ system?

- circulatory; excretory
- digestive; musculoskeletal
- endocrine; respiratory
- immune; reproductive ​

Answers

Answer:

circulatory; excretory

Explanation:

Hope it helps :3

Brainliest please

Answer:

im learning this and im good at this science stuff  

Explanation:

blood functions is a part of the circulatory system and the immune reproductive

classification of casava​

Answers

Answer:

Manihot esculenta

Explanation:

i think this is the answer

Manihot esculenta

..................................

Which of these two connective tissues, hyaline cartilage or bone (osseous), would you expect to heal more quickly if injured?

Answers

Answer:

Injury in bones is expected to heal quicker than damaged hyaline cartilage.

1. A decomposer ultimately obtains all its food from
O A. mushrooms.
O B. sunlight
O C. dead and decaying plant matter.
OD. preying on other living organism.

Answers

the answer is going to be C. hope this helps!
C ) dead and decaying plant matter. This is because they get their energy from that and the nutrients that decomposers release into the environment become part of the soil, making it fertile and good for plant growth. These nutrients become a part of new plants that grow from the fertile soil.

What was the first genetically engineered product to reach the marketplace.
O amoxicillin
O human insulin
O tissue plasminogen activator
O penicillin

Answers

Answer:

b) Human insulin

Explanation:

Answer:

penicillin

yďbtdbkfdz

Discribe how stellas view of these cells and thair parts changed as she transitioed through the three levels of magnification be sure to identify at least one cell structure or part of the paramecium in your description

Answers

Answer:

hesabu yangu ya frei mbele logi masic ungiwana

Explanation:

hesabu yangu ya frei mbele logi masic ungiwana ya

Describe the stretch shortening cycle (sac)
and explain how it relates to exercise

Answers

Explanation:  The stretch-shortening cycle (SSC) refers to the muscle action when active muscle lengthening is immediately followed by active muscle shortening. ... The stretch-shortening cycle (SSC) refers to the muscle action when active muscle lengthening is immediately followed by active muscle shortening.

In what ways do you think an organism and its cells would be helped by a warm temperature?

Answers

Answer:

helps warm up

Explanation:

An organism and its cells would be helped by a warm temperature by warming up. Higher temperatures increase the rate of such reactions, up to a point where the temperature leads to the degradation of the enzymes or reactants.

What is an organism?

"A living thing made up of one or more cells and able to carry on the activities of life (as using energy, growing, or reproducing) organism."

What is a cell?

"Cell is the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body."

How does temperature affect the organisms?

"Temperature has the single most important influence on the distribution of organisms because it determines the physical state of water. Most organisms cannot live in conditions in which the temperature remains below 0 °C or above 45 °C for any length of time."

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how are provirus and viral DNA related?

Answers

Answer: Howard Temin's provirus hypothesis holds that the viral RNA introduced into cells during infection becomes converted to DNA by reverse transcription. Viral DNA is then integrated into the host genome.

Explanation: Hope this helped!

Answer:Howard Temin's provirus hypothesis holds that the viral RNA introduced into cells during infection becomes converted to DNA by reverse transcription. Viral DNA is then integrated into the host genome.

Explanation:there really isn't a explanation

6. The theory that suggests that plates are slowly moving is called
A. Magnetic Reversal
C. Continental Slope
B. Plate Tectonic
D. Continental Drift

Answers

D. Continental Drift

No links please, and thank you in advance :)


Can someone give me an example of a dichotomous key, I have learned a little about it.. but I’m still a little confused. Can I have an example?

Answers

Answer:

important scientific tool used to identify different organisms, based the organism's observable traits

Explanation:

consist of a series of statements with two choices in each step that will lead users to the correct identification

For example, in tree identification, a dichotomous key might ask whether the tree has leaves or needles. The key then directs the user down one list of questions if the tree has leaves, and a different question list if it has needles.

Answer:

Example objects to identify: apple tree, water-lily, fir tree, dandelion, astroturf, seaweed. Dichotomous keys may be simple or complex depending on what is being identified. I hope this helps

Explanation:

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