Answer: a) Friction
Explanation: Friction is a force that opposes motion. When two objects are in contact, friction is acts in a direction opposite to the motion of the object.
the main enzyme involved in linking individual nucleotides is
Answer:
The primary enzyme involved in this is DNA polymerase which joins nucleotides to synthesize the new complementary strand.
Which type of tooth is used to fragment foods into ever-smaller chunks by shearing, slicing, crushing, and griding
The element lithium has two common isotopes: Li–6 and Li–7 If the average atomic mass of lithium is 6.94004 u, determine its percent isotopic abundances. Step by step and explain.
First we need to determine the average atomic mass of these isotopes.
The atomic masses of Lithium-6 and Lithium-7 are 6.0151amu and 7.0160amu respectively.
Now that we have that, we need to set up the relative abundance problem.
We can do that using the formula (M1)(x) + (M2)(1-x) = M(E)
Because you asked for details, I'll explain what each variable stands for-
M1 = the mass of one isotope
x = the relative abundance
M2 = the mass of the second isotope
M(E) = the atomic mass of the element from the periodic table
Therefor all we do now is plug in our respective variable.
M1 = 6.0151amu (Lithium-6)
x = unknown relative abundance
M2 = 7.0160amu (Lithium-7)
M(E) = 6.94004amu
Now the formula plugged in will look like this:
6.0151x + 7.0160(1-x) = 6.94004
Now doing some quick math, we can determine that x=0.07589
For the last step we need to find the percent abundance of each element, which is quite simple. We take X and multiply it by 100 to find Lithium-6, so 0.076 x 100 = 7.6%
and since then we use 1 - X, so 1 - 0.076 = 0.924
We take that and also multiply it by 100, so 0.924 x 100 = 92.4%
Conclusion:
The abundance of the Lithium-6 isotope is 7.6%, and the abundance of the Lithium-7 isotope is 92.4%.
Please ask if you have any questions and I hope this was helpful!
Birds and insects both have wings, but we do not consider this similarity as evidence of relatedness because ____.
The wings in birds and insects are not considered as evidence of relatedness because they differ in structures even though their functions may be the same.
Organs in different organisms that are different in structures but similar in functions are referred to as analogous organs. Even though analogous organs serve as evidence of organic evolution, they are indications that organisms differ in the paths taken to evolve.
Some other organs may be similar in structures but different in functions. These types of organs are known as homologous organs and are indications that organisms are kind of related in the path taken to evolve.
More on analogous organs can be found here: https://brainly.com/question/11915249
Match the color components of light with the resulting color of light
A. Yellow
B. White
C. Magenta
D. Cyan
____1. Red + Green
____2.Red + Blue
____3. Green + Blue
____4. Red + Green + Blue
Answer:
» 1. A. Yellow » 2.C. Magenta» 3.D. Cyan » 4.B. WhiteWhat is the probability that a couple will have a type A child if the mother has Type
A blood and is heterozygous for the trait and the father has type AB blood?
Answer:
50%
Explanation:
To solve this, we'd need to use a Punnett square. Since the mother has a heterozygous genotype and has an A-blood phenotype, we know that she is AO and the father is AB.
A B
A AA AB
O AO BO
According to this, the four possible blood types, with equal probability are: AA, AB, AO, and BO. Both AA and AO genes will result in type-A blood, since A is dominant over O. Therefore, there is a 2 in 4 (or 1 in 2, or 50%) chance of the child having type-A blood.
What might scientists learn about the evolution of human behavior from studying cognitive behavior in animals?
Answer:
When we gain insight into animal behavior, we are in a stronger position to understand vexing conservation problems, such as how to save endangered species, assess environmental quality, design nature preserves, and evaluate the importance of human-related threats to survival in otherwise fit animals.
Explanation:
Someone plz help me :(
Answer:
it's a or c but I think it's a
Please help quick!
How are Protista different from Bacteria?
a) Protista have nuclei and Bacteria do not.
b) Protista reproduce asexually and Bacteria do not.
c) Protista are heterotrophic and Bacteria are not.
d) Protista have cilia and Bacteria do not.
I'll mark brainliest if correct!
Answer:a
Explanation:
What can bacteria do with “broken down” materials ?
identify the location of reduction in an electrochemical cell.
Answer:
cathode electrodes.
Explanation:
Electrochemical cells have two conductive electrodes, called the anode and the cathode. The anode is defined as the electrode where oxidation occurs. The cathode is the electrode where reduction takes place.
HELLLP!!!!! Seeds are one way that plants reproduce. What are the reproductive advantages of using seeds to reproduce? What are the two major divisions of seed plants, and how do plants in each of these divisions reproduce?\
Explanation:
1-Seeds provide a protective coat so that the embryo plant can develop when it finds a nice piece of soil.
2-Vascular plants are subdivided into two classes: seedless plants, which probably evolved first (including lycophytes and pterophytes), and seed plants. Seed-producing plants include gymnosperms, which produce “naked” seeds, and angiosperms, which reproduce by flowering.
Here u go <3
Answer:
The Seed Coat. The seed coat is one major advantage seeds have over spores. Nourishment. Each seed contains nourishment for the embryo inside the seed.
Explanation:
help pls !! will give brainliest -
7A - Indicate the complementary strand of the DNA molecule shown here.
5’ A A T C G C T G C C T 3’
7B - If the original DNA molecule shown in question 7A were used in the process of transportation to produce mRNA, then what would be the sequence of the mRNA molecule?
(please answer both questions)
Answer:
A A T C G C T G C C T
T T A G C G A C G G A
U U A G C G A C G C A
Explanation:
Adenine (A) and Thymine (T) pair together. Cytosine (C) and Guanine (G) pair together.
With mRNA, the RNA doesn't have Thymine, so it replaces it with Uracil (U).
Write the function of nucleus in the cells of organism
Answer:
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus.
Explanation:
HOPE IT HELPS...............how many chromosomes are in a typical human body cell?
Answer:
46 chromosomes
Explanation:
There are 46 chromosomes in a typical human body cell. (23 pairs of chromosomes)
how many chromosomes are in a typical human body cell?
Answer:-46 chromosomes
Explanation:-The normal number of chromosomes in every cell of a typical human body is a total of 46 chromosomes, or 23 pairs.
Please help me!!! ASAP
cellular respiration
Explanation:
A
One variable not mentioned in the description of the experiment that could affect the results of the investigation is reduced canopy cover. Describe the effect that canopy cover would likely have on the results of the investigation.
The canopy cover can affect the results of an investigation because a higher canopy cover is accompanied by a decrease in the availability of sunlight.
The canopy cover is the proportion of the ground covered by vegetation when it is viewed from vertically above the planted area.
The level of canopy cover affects light availability on the ground and also its microclimate, thereby this feature can also alter any biological experimental procedure by affecting the level and type of biodiversity.
A reduced canopy cover may alter any experimental outcome by increasing the energy/light input in the ground cover stratum, thereby likely affecting biodiversity.
Learn more in:
https://brainly.com/question/9199868
how many alleles for each gene does an organism carry?
what type of fossil forms when the impression from the remains of an organism is filled in with soil and hardens into the shape of the original organism?
Answer:
casts
Explanation:
casts are formed by filing the cavity of minerals collected from the surrounding
Answer:
i belive the answer is "casts"
Explanation:
The viral envelope closely resembles the ______________________. a. prokaryotic cell wall. b. capsomere c. eukaryotic cytoplasmic membrane. d. eukaryotic cell wall.
The viral envelope closely resembles the eukaryotic cell wall. That is option D.
The virus is a type of microorganism that contains DNA (Deoxyribonucleic acid) and surrounded by a protein coat.
There are different types of viruses which include:
Double stranded DNASingle stranded DNADouble stranded RNASingle stranded RNAThe parts of a virus include:
the protein coat (viral envelope)DNA (Deoxyribonucleic acid)The viral envelope is the external part of the virus, which is made up of proteins and lipids, and is capable of protecting the virus from harm.
Also the cell wall of the eukaryotic cell wall also protects these organisms from external harm.
Therefore, the viral envelope closely resembles the eukaryotic cell wall.
Learn more here:
https://brainly.com/question/15543646
Sedimentation accumulation found in bodies of water can be the result of _______. A. Fertilizer runoff b. Pesticides and herbicides c. Erosion from agricultural practices d. All of the above.
Answer:
All of the above.
Explanation:
All of these can contribute to sediment accumilation in bodies of water.
Sedimentation accumulation found in water bodies can be the result of fertilizer runoff, pesticides, pesticides, and erosion from agricultural practices. So, the correct option is D.
What do you mean by Sedimentation accumulation?The sedimentation accumulation may be defined as a process of gathering sediments into the rocks, and water bodies, and increasing their actual mass.
Sedimentation accumulation may be carried by the runoff of fertilizers, pesticides, and insecticides. It also occurred due to the process of soil erosion that takes place during agricultural practices.
Therefore, the correct option for this question is D.
To learn more about Sedimentation accumulation, refer to the link:
https://brainly.com/question/22818774
#SPJ2
Fair weather, rain showers, clear and cold, and warm and windy are examples of which of the following?
A. weather alerts
B. weather conditions
C. weather movement
D. weather processes
Answer:
C. weather movement
Explanation:
correct me if im wrong
Secondary nucleus is
a) Haploid
b)Diploid
c) Triploid
d) Tetraploid
The correct answer is option B. Diploid
The secondary nucleus is formed by the fusion of two polar nuclei which is a diploid.
The purpose of the foot of a molluscs is:
Answer:
Foot of a molluscs is used for locomotion and anchorage, and varies in shape and function, depending on the type of mollusk under study.
where is the inherited information that determines a cell’s function?
Answer:
Genes
Explanation:
The hereditary information (inherited information) is contained in genes, located in the chromosomes of each cell.
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Which of the following is TRUE about ovarian cysts?
Answer:
d. All of the above
Explanation: is correct.
Answer:
ALL OF THE ABOVE
Explanation:
The main reproductive organ of the plant is the
Hello!!
.Stamen.
Structure. As a plant's reproductive part, a flower contains a stamen (male flower part) or pistil (female flower part), or both, plus accessory parts such as sepals, petals, and nectar glands (Figure 19). The stamen is the male reproductive organ. It consists of a pollen sac (anther) and a long supporting filament.
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True/False: In a neuron at rest, the concentration of sodium ions is 14 times higher outside the cell than inside the cell.
Answer:
true
Explanation:
The sodium and chloride ion concentrations are lower inside the cell than outside, and the potassium concentration is greater inside the cell. These concentration differences for sodium and potassium are due to the action of a membrane active transport system which pumps sodium out of the cell and potassium into it.
What type of organism in the ocean food web is the most numerous
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Producers are described as autotrophic, which means they are able to make their own food. Just like producers on land, producers in the marine environment convert energy from the sun into food energy through photosynthesis. Phytoplankton are the most abundant and widespread producers in the marine environment
hope it helps ❤~
Answer:
above answer may help youWhat is photosynthesis?
Answer:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.