Question 24 of 25
Which statement best describes one way that molecules differ from atoms?
A. Only a molecule can be the smallest particle of a certain element.
B. A molecule can contain a nucleus about which its electrons orbit.
C. A molecule can contain two atoms of the same element.
D. Only a molécule can be broken down into two or more different
elements
Answers
Answer:
Correct answer C
Explanation:
Just took test
Answer:
C
Explanation:
Just took the test
Related Questions
Anyone can help me with this one???
Answers
Answer:
D. Increased precipitation and increased slope
Explanation:
An increase of precipitatioon will overflow a stream, causing it to mover faster, while an increase of slope will cause gravity to pull the slope down faster.
Plastic can biodegrade; it breaks down and decomposes easily
True or false
Answers
Answer:
true
Explanation:
it can but it take up to 1,000 years for plastic to decompose in landfills. The plastic bags we use daily take 10 years to 1,000 years to decompose, while plastic bottles can take 450 years or more.
I need help please!
1. In guinea pigs, long hair is dominant to short hair. A pure bred short haired guinea pig is bred with a hybrid long haired. What percent of the babies will have Hh as their allies? (use H)
Answers
Answer:
50%
Explanation:
So the cross is hh x Hh
Making a punnet square would get Hh,hh,Hh,hh
The percent of babies that will have Hh is 50%
Dorothy works as a medicinal chemist in a pharmaceutical company. What could one of her assignments be?A. To test a new X-ray equipment B. To develop new surgical techniques C. To design new software that helps in the research of new molecules D. To research molecules in spider venom for new pain medicine
Answers
Answer:
D. To research molecules in spider venom for new pain medicine.
Explanation:
If she's a medicinal chemist, D is the only answer that refers to chemistry (researching molecules). The others are software/engineering/manufacturing-type roles.
A particular triplet of bases in the coding sequences of DNA is AGT. What is the corresponding triplet
in the complementary strand of DNA?
GAC
ОТСА
OUC
TGG
Answers
Answer:
TCA
Explanation:
Deoxyribonucleic acid (DNA) is a molecule composed of two polynucleotide strands that coil to form a double helix structure. These DNA strands are antiparallel (i.e., they run in opposite directions) and complementary because the nucleotide sequence in one DNA strand determines the sequence in the other DNA strand. According to the base pair rules, Adenine (A) always pairs with thymine (T), and Guanine (G) always pairs with Cytosine (C). Therefore, if a DNA strand has the sequence AGT, then the other DNA strand will have the complementary sequence TCA.
Define ethnicity in your own words best one gets 20 points
Answers
Please help
I need help with this question
Answers
identify what soil in aquarium stones represent
ALOT OF POINTS
Answers
Why do kokanee salmon spawn only once?
Answers
Answer:
A
Explanation:
Constructing passage ways near the dams to allow to salmon to swim around blocked rivers. The construction of dams in rivers has blocked the path of some salmons returning to spawning grounds. The best way to overcome this is to make the passage ways near the dams to allow salmons to swim in areas which have blocked due to dams. So that salmons can returned to the spawning ground and can spawn which leads to increase in their population.
Answer:
Salmon change color to attract a spawning mate. Pacific salmon use all their energy for returning to their home stream, for making eggs, and digging the nest. ... Unlike Pacific salmon, Atlantic salmon do not die after spawning, so adults can repeat the spawning cycle for several years.
2. In dogs, there is a hereditary type of deafness caused by a recessive gene. Two dogs who carry the
gene for deafness but have normal hearing are mated. What are the possible genotypes and phenotypes o
f their offspring and the percent chance for each?
Answers
Answer:
the Punnet square is
D d
D DD Dd
d Dd dd
the chart is
DD deafness 25%
Dd maybe deaf 50%
dd not deaf 25%
I'm not 100% sure this is right, but I think it is, hope this helps
Investigators have arrived at a crime scene and are ready to search for evidence. What needs to happen next?
A
They should ask a judge for a search warrant to be able to explore.
B
They should only search for evidence at the primary crime scene.
C
They should map out a grid to systematically look for evidence.
D
They should only search for evidence if a case looks complicated.
Answers
Answer: C . They should map out a grid to systematically look for evidence.
Explanation:
As a crime has been committed, the investigators do not need a search warrant so there is no need to ask a Judge for one so option A is incorrect.
It is best if evidence is searched for in different locations not just the primary scene so option B is incorrect.
Setting up a grip to enable the systematic analysis of evidence is their most likely course of action so option C is correct.
Even if the case is not complicated, evidence still needs to be searched for so option D is wrong.
ALOT OF POINTS PLEADE HELP
WHAT IS THE ANTICODON THAT WOULD PAIR UP WITH THE MRNA CODON UAG ?
Answers
Answer:
At one end, the tRNA has an anticodon of 3'-UAC-5', and it binds to a codon in an mRNA that has a sequence of 5'-AUG-3' through complementary base pairing. The other end of the tRNA carries the amino acid methionine (Met), which is the the amino acid specified by the mRNA codon AUG.
Explanation:
not sure if this is right.
Answer:
I guess tRNA
Explanation:
What are the complementary base pairs for the following DNA strand?
AGTGCCATA
Answers
Answer:
A = adenine
T = thymine
C = cytosine
G = guanine
Explanation: its right(:
Answer:
TCACGGTAT
Explanation:
The T’s and A’s corresponding just like the Cs and Gs correspond. Think of it as Apple in a tree and car in a garage
What is a dominant gene?
A gene that is identical in most of the world's population.
A gene that does not change from generation to generation.
A gene with a mutation that affects the surrounding genes.
A gene that is always expressed physically when present.
Answers
Answer:
1 or A
Explanation:
Don't trust me but that's what i think because dominance is the phenomenon of one variant of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and the second recessive.
The process in which plants absorb nitrates through their roots is called
a. nitrification.
b. denitrification.
c. assimilation.
d. ammonification.
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Today the weather is rainy and warm the weather forecast is that it will be cold during the night which will most likely be observed while the front moves through the area
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Below is a list of supplies available in a laboratory
• four flasks with stoppers
• floodlight
• tap water
• graduated cylinders
• small aquarium plants
• four small fish
• bromthymol blue (a chemical indicator
that changes color from blue to yellow as
the level of carbon dioxide in a solution
increases)
The class sets up an experiment with the four flasks as shown.
Pak 100. www.bymel wee plane
Pak 200w, byl Noe 2 mall fish
Pak 100 m. well bromymel e 2 wall fish plant
Pak 100 m. ll. bromyal blue
Which flasks contain organisms undergoing cellular respiration?
Flask 1, 2 and 3
O Flask 1 and 3
O Flask 2 and 3
O None
Answers
Answer: Flank 1 and 3
Explanation:
The organisms in flask 1 and 3 undergoes cellular respiration.
What is cellular respiration?Cellular respiration is the process by which biological fuels are oxidized in the presence of an inorganic electron acceptor such as oxygen to produce large amounts of energy, to drive the bulk production of ATP.
Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP.
Cellular respiration is used to generate usable ATP energy in order to support many other reactions in the body.
Learn more about cellular respiration:
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