Answers
Answer:
[tex]\boxed {\tt 3}[/tex]
Explanation:
An element only has one type of atom and cannot be broken down by chemical means.
Let's analyze the answer choices.
1. This has two types of atoms, so it cannot be an element. It has more than one type of atom.
2. This has two types of atoms that are bonded together. It cannot be an element because there is more than one type of atom and the bonds can be broken.
3. This has one type of atoms, so it is an element.
Therefore the best answer choice is 3.
Related Questions
Is a thorn bug endangered?
Answers
Answer:
i think so
Explanation:
sorry if im wrong
Some behaviors, such as nest building in birds, are determined by the genes of an organism. These innate behaviors are inherited from parent to offspring and exhibited even if the offspring does not observe its parent performing the behavior. Nest building behavior was most likely an evolutionary advantage because birds that built nests were more likely to raise their young to maturity and thus increase their reproductive success. That is, birds that laid their eggs in nests had more offspring survive to adulthood than those that did not. Behaviors that are determined by genes and that give an organism increased reproductive success usually become common in a species due to+
Answers
Answer:
natural selection
Explanation:
According to the evolutionary theory, natural selection can be understood as the process of differential survival and reproduction of individuals due to phenotypic differences, which may be associated with different colors, sizes, behaviors, etc. The only prerequisite is that these phenotypic differential traits must be heritable, which means that they must be passed by genes from one generation to the next. For example, in the white-throated sparrow, it has been discovered two morphs that differ in behavior due to a chromosomal inversion in sex chromosomes.
Based on the description of DNA, given in the Do Now, what could be the nucleotide composition of a DNA double helix? 90 points 20% adenine, 20% guanine, 30% thymine, 30% cytosine 60% adenine, 20% thymine, 10% guanine, 10% cytosine 20% adenine, 20% thymine, 30% guanine, 30% cytosine 60% adenine, 20% guanine, 10% thymine, 10% cytosine
Answers
Answer:
20% adenine, 20% thymine, 30% guanine, 30% cytosine
Explanation:
Edwin Chargaff stated in his rule that, in a DNA molecule, the amount of purine bases (Adenine and Guanine) should equate the amount of pyrimidine bases (Cytosine and Thymine). Mathematically, this means that;
A + G + C + T = 100%
Where;
% Adenine base = % Thymine base
% Guanine base = % Cytosine base
Hence, according to this question, the DNA molecule described will contain
20% adenine = 20% thymine,
30% guanine = 30% cytosine
20% A + 20% T + 30% G + 30% C = 100%
• All _______________ as we know it on Earth is dependent on __________________.
Answers
Answer:
scientific progress
individuals
Explanation:
Motion can be described through a change in ____.
Answers
Answer:
distance, velocity, acceleration, speed, and time
Explanation:
6
An antibiotic label says to take it for fourteen days. If we stop taking the medication after ten days, what would most likely
happen to the bacteria in our body?
A The bacteria causes the human immune system to stop producing antibodies to fight disease.
B A population of bacteria resistant to the antibiotic appears.
The strain of bacteria allows the human immune system to build up resistance.
The bacteria builds up a resistance to all types of antibiotics, turning into a "superbug".
Answers
Answer:
B
Explanation:
This actually happened to me! Since you don't fully kill off all the bacteria, they will mutate and become resistant to the medication. The 14 days ensures that the bacteria will all be killed whereas 10 days allows the stronger organisms to grow and reproduce(where they typically are immune/build an immunity)
PLLLLLLLLLLLLLLLLLLLLLLLLLLLLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS HELP!
DUE RIGHT NOW
You know we have a ‘leap year’ every 4 years in February right? Make a guess- do you think these dates are exactly the same every year? *Explain completely*
Answers
The chart shows the number of blue crabs, a commonly-eaten seafood, in a population sample in South Carolina. Using the phrase "in tow" means that this shows the number of crabs caught in nets per year. The information in the chart suggests that blue crabs are likely A) becoming extinct. B) being overfished. C) now in abundance after years of struggling. D) decreasing in number, but increasing in size.
Answers
Answer:
Your answer is: B) being overfished
Explanation:
Hope this helps you
Crown me as brainliest:)
why
Thy law is are imp
important
Answers
Answer: The law is important because without the law we would have criminals all over the streets and people would just take things without paying people would just crash in the street there would be 12 yr old's dating 23 yr old's. So law is important so everything can be in its place and not be crazy and illegal
QAmino acids differ from one another according to their R. or side carboxyl, COO- hydrogen, H amino, NH3+
Answers
Answer:
it's R or side
Explanation:
The surface area/volume ratio is an important factor for one celled organisms. As a cell's volume grows, its surface area/volume ratio ______________, making it more difficult to acquire enough nutrients via diffusion. Question 7 options: increases freezes decreases stays the same
Answers
Answer: decreases
Explanation:
The surface area to the volume ratio will decrease as the volume of the cell increases or the cell gets larger. Therefore, if the volume of the cell increases beyond the certain limit the cell will not be able to imbibe nutrients as not enough material can pass through the cell membrane to accommodate the increase in volume of the cell.
Which statement BEST describes the cell membrane in a typical bacterial cell? The membrane...
a)has the same permeability to all substances moving in and out the cell.
b) selectively controls what enters and exits the cell.
c) is composed of two protein layers with lipids floating inside.
d) is composed of protein and carbohydrates only.
Answers
Answer:
Explanation:What’s a cell? Well, on some level, it's a bag of goo. The plasma membrane—the outer boundary of the cell—is the bag, and the cytoplasm is the goo.
Of course, a cell is ever so much more than just a bag of goo. It's a complex, highly organized unit, the basic building block of all living things. And the plasma membrane and cytoplasm are actually pretty sophisticated.
The membrane is a delicate, two-layered structure of lipids and proteins, and it controls what can enter and exit the cell. Similarly, the cytoplasm of a eukaryotic cell consists not only of cytosol—a gel-like substance made up of water, ions, and macromolecules—but also of organelles and the structural proteins that make up the cytoskeleton, or "skeleton of the cell."
In this article, we’ll take a closer look at the plasma membrane and cytoplasm.
The plasma membrane
Both prokaryotic and eukaryotic cells have a plasma membrane, a double layer of lipids that separates the cell interior from the outside environment. This double layer consists largely of specialized lipids called phospholipids.
A phospholipid is made up of a hydrophilic, water-loving, phosphate head, along with two hydrophobic, water-fearing, fatty acid tails. Phospholipids spontaneously arrange themselves in a double-layered structure with their hydrophobic tails pointing inward and their hydrophilic heads facing outward. This energetically favorable two-layer structure, called a phospholipid bilayer, is found in many biological membranes. [Close-up of a phospholipid]
As shown below, proteins are also an important component of the plasma membrane. Some of them pass all the way through the membrane, serving as channels or signal receptors, while others are just attached at the edge. Different types of lipids, such as cholesterol, may also be found in the cell membrane and affect its fluidity.
The last part for my project it's early and I'm being lazy please look it up? giving lots of points cuz that only fare don't take advantage of this.
Describe how community residents and authorities can prepare for an earthquake and its aftermath. Review earthquake advice from the USGS, the American Red Cross, and other agencies.
Answers
Answer:
here is what I know about earthquakes..
Explanation:
Learn how to prepare for an earthquake with the following safety tips. Please review our guidance on preparing for an earthquake while still protecting. Doorways are no stronger than any other part of a structure so don't rely on them for protection! Staying informed about your community's risk and response plans.
Can someone help me :)
Answers
Answer:
C. magnetic field
Explanation:
Earth is like a giant magnet with a North and South Pole. However, the magnetic North and South Pole are not aligned with the Geographic North and South Pole. ... The blue lines show where the magnetic field dips into the Earth and the red lines show where the magnetic field emerges from the Earth.
Answer:
I think it would be C, since the north and south magnets attract. Magnetic field
occurs when iron, or another magnets, get toget her, so I‘d say it’s C.
Competition a type of symbiotic relationship, is where
Answers
Answer:
competition is a type of relationship where two animals that have the same niche will compete against each other for resources
Explanation:
just took the test ;)
Of the 6 essential elements found
in every living thing, known as
'CHONPS', which of the following
are most prevalent?
Answers
Answer:
oxygen is the most prevalent in living organisms
Brainliest :)
Define the term hominin.
Answers
Answer:
a primate of a taxonomic tribe ( Hominini ), which comprises those species regarded as human, directly ancestral to humans, or very closely related to humans.
I hope it helps
Thank U
[tex]\red{Answer:-}[/tex]
✭The Hominini, or hominins, form a taxonomic tribe of the subfamily Homininae ("hominines"). Hominini includes the extant genera Homo (humans) and Pan (Chimpanzees and Bonobos), but excludes the genus Gorilla (gorillas).
✭The term was originally introduced by John Edward Gray (1824), long before any details on the speciation of Pan and Homo were known. Gray's tribe Hominini by definition includes both Pan and Homo. This definition is still adhered to in the proposal by Mann and Weiss (1996), which divides Hominini into three subtribes, Panina (containing Pan), Hominina ("homininans", containing Homo "humans"), and Australopithecina (containing several extinct "australopithecine" genera).
FOLLOW ME ♥️how many atoms of nitrogen are in a chemical formula Ni(NO3)2?
O 3
O 2
O 1
O 6
Answers
Answer:
2
just did test
Explanation:
How do changes in the environment influence ecosystem stability?
Answers
Information on Plasma Membrane
(first answer gets a brainliest!)
Answers
Answer:
The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment.The plasma membrane consists of a lipid bilayer that is semipermeable. The plasma membrane regulates the transport of materials entering and exiting the cell.
Explanation:
Part 1: Which, if any, substance is soluble in water?
Part 2: Explain how the data helped you determine solubility for both substances for temperatures 20 °C to 80 °C
Answers
Answer:
Part 1: Sugar and salt
Explanation:
I only have the answer for part one sorry
PLEASE HELP!!! (ANSWER APPROPRIATELY)
Answers
Answer:
With the boost in warmer weather and excess water, populations will boom
Explanation:
Yabbies will do best at a water temperature of between 12°C and 20°C but they will tolerate water that is a little colder or warmer. Complete immersion in water is not essential for life for the yabby. If its gills are kept moist (humid air is sufficient), it can absorb oxygen from the air and survive for many days out of water. To breed, however, it must be in water. With the water needed for breading and warmer weather used for breeding, population numbers for the Yabbies should rise.
Which sense can distinguish between five different types?
A. Smell
B. Taste
C. Touch
D. Proprioception
Answers
Answer: Taste
Explanation:
B. Taste (or tongue) is the only sense that can distinguish between five different types.
What do you mean by sense?
"A sense is defined as a way that the body perceives external stimuli, or is an awareness or feeling about something. Tasting, touching, seeing and hearing are all examples of a sense."
What are the different sense organs?
We have five sense organs, namely:
Eyes (for seeing).Ears (for hearing).Nose (for smelling).Tongue (for tasting).Skin (for touching).Which sense can distinguish between five basic tastes?
"We use our tongues to distinguish between five basic tastes, i.e. sweet, sour, salty, bitter and umami."
To know more about sense here https://brainly.com/question/2916450
#SPJ2
HELP PLEASE BTW ITS NOT C I JUST PUT ANY ANSWER
Answers
Answer:
The answer would be D because it clearly states that the reactants are separated fron the products.
How long does it take for a jellyfish to reproduce
Answers
Answer:
A jellyfish might spend one year as a medusa, but it can spend several years in the polyp stage. Polyps are stationary and reproduce asexually. The method of reproduction used by jellyfish polyps is known as budding, and it does look like a plant growing a new bud for a flower.
An earthworm turns away from light
Answers
its called Photophobia
Hello this is my first question. Thanks very much if you answer. ^_^
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2. What are the four water sources, referred to as "taps," that Sedlak believes will solve our urban water crisis?
3. Sedlak closes his talk by pointing out the benefits to creating and reinventing how we obtain our water supply. Discuss some of those benefits and explain how they relate to what you learned in the unit.
Answers
Answer:
2. Stormwater harvesting, water reuse, water conservation, and seawater desalination
3. Clean water and lower bill. When water is stored at a treatment plant the more water there is the better treatment it gets. This is because when there's less water the chemicals used to treat it may still have a taste left over. Overall, saving water will also lower your bill because that means you can spend less to save more money if you let water collect up.
Answer:
Hey darlin!
1. Storm water harvesting, water reuse, water conservation, and seawater desalination.
2. Clean water and lower bill, When water is stored at a treatment plant the more water there is the better treatment it gets. This is because when there's less water the chemicals used to treat it may still have a taste left over. Overall, saving water will also lower your bill because that means you can spend less to save more money if you let water collect up.
Explanation:
Have an amaaazzing day luv <3
QUICK PLEASE HELP
Why is the use of the inquiry process a practical way to approach science?
Explain.
Answers
Answer:
The inquiry process is a practical way to approach science because the inquiry process begins by asking questions and moving on from there. ... Therefore, the inquiry method is connected because to inquire on a subject requires raising questions which is an essential step in scientific discovery.
Explanation:
Pick out the answer. But that's the long way :)
I WILL GIVE YOU BRAINLIEST!!!!
Part A
Which statement is a central idea of the text?
The scientific method is based on observations.
The scientific method is based on reading scientific journals.
Scientists generate guesses in the scientific method.
Variables are sometimes used in the scientific method.
Question 2
Part B
Which detail from the text best supports the answer in Part A?
Conditions change in different experiments.
Experiments produce evidence for scientific ideas.
Hypotheses are ideas about what might happen.
Scientists share their results in journals and papers.
Answers
Answer:
A, D
Explanation:
A student claims that a leaf is living, and a plastic leaf is nonliving. Which statement provides evidence to support the claim?
Answers
Answer:
The plastic leaf lacks cellular structure.
Explanation: