Answer:
A. The hydrogen atoms have a partial positive charge and are attracted to the oxygen atom in another molecule, which has a partial negative charge.
Explanation:
I just took the quiz. That was the correct answer.
The hydrogen atoms have a partial positive charge and are attracted to the oxygen atom in another molecule, which has a partial negative charge. The correct option is A.
What is a hydrogen bond?A hydrogen bond or H-bond is an electrostatic attraction between a hydrogen atom covalently bound to a more electronegative "donor" atom or group.
Another electronegative atom weighing down a lone pair of electrons the hydrogen bond acceptor.
Since the electron is not shared evenly between a hydrogen atom and a negatively charged atom, hydrogen bonding occurs.
Hydrogen in a bond still has one electron, whereas a stable electron pair requires two electrons.
Hydrogen bonds form between adjoining hydrogen and oxygen atoms of adjacent water molecules in the case of water. A hydrogen bond is formed by the attraction of individual water molecules.
Thus, the correct option is A.
For more details regarding a hydrogen bond, visit:
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The purpose of both mitosis and melosis is to create new cells. Both processes involve the replication of genetic material within the cell; and bith take opace within a sexually reproducing individual. There is a difference between the processes, however What is one crucial difference?
A-Meiosis creates an exact replica of the parent cell, while mitosis shows genetic diversity
B-Mitosis creates an exact replica of the parent cell , while meiosis shows genetic diversity .
C-Only meiosis allows for the possibility of gene point mutations .
D-Only mitosis allows for the possibility of translocation .
Answer: B or A
Explanation:
All of the following features are shared by ALL cells except for:
DNA
Cell membrane
Cytoplasm
Cell wall
Answer:
Cell Wall
Explanation:
The cell wall is only present in "plant cells" as an added barrier and structural support.
Helps
ASAP pls!!! ANSWER CHOICES LISTED
Two traits were observed for hamsters: color and tail length. For color black ( B ) is dominant over tan ( b) for rail length short tails ( S) are dominant over long tails ( s) was is the genotype for a heterozygous back short tailed hamster?
A. BBSS
B. BBSs
C. BBSs
D. BbSS
Answer: C
Explanation:
C includes both dominant and passive traits allowing it to be balanced ( hope this helps :3) Edit: C and B look the same but the person below helped.
A physician has a patient with diabetes. Due to a mutation in the patient’s insulin gene, he does not make the insulin protein. In order to treat the patient, the insulin protein will be made in a lab by inserting the human gene for insulin into bacteria. The bacteria will then produce insulin, which will be collected and given to the diabetic patient. Which type of genetic technology is involved in the production of the insulin protein?
A. Recombinant DNA
B.Selective Breeding
C.DNA Fingerprinting
D. Reproductive Cloning
Answer:A
Explanation:
Answer:
A
Explanation:
help ASAP for brainlist and extra points
Answer:
C) DBAC
Explanation:
Answer:
BCAD
Explanation:
Explain in detail how the longer, more colorful tails evolved in peacocks despite causing disadvantages for the males.
Answer:
Due to mating
Explanation:
The longer and more colorful tails evolved in peacocks in the process of natural selection in order to preserve the peacock species despite causing disadvantages for the males.
The Long and colorful tails ensured that the females got attracted for mating and subsequent reproduction to ensure they didn’t go extinct.
The pupil controls the size of iris.
is it true or false?
Answer:
it's true
Explanation:
if it's dim light the iris will be large
What is the relationship called between a host, a guest, and guest services?
Question 18 options:
Kindness
Compassion
Hospitality
Informality
Answer:
is the third one, hospitality
How is an organism's
metabolism related to the Earth's
carbon cycle?
Answer:
Metabolism involves either using energy to build organic molecules or breaking down organic molecules in which energy is stored. Organic molecules contain carbon. Therefore, an organisms metabolism is part of Earth's carbon cycle.
Explanation:
in other words:
An organisms metabolism is related to the earth's carbon cycle because metabolism involves either using energy to build up or breaking down organic molecules in which energy is stored. Organic molecules contain carbon.
Hope this helps :)
Who recorded country's first million-selling record?
Answer:
Vernon Dalhart
Explanation:
The Prisoners Song was a song by Vernon Dalhart that became country music's first multi million dollar record.
Vernon Dalhart sang and recorded "The Prisoner's Song," which became country music's first multi-million-selling record and helped launch the genre as a commercial force.This song was one of the best-selling songs during the 1920s and it had sold around 1.3 million records when the song reached its climax of popularity.
Write a hypothesis for...
What is the effect of the temperature on catalase activity?
Answer:
The oxygen will keep shrinking if it gets hotter?
Explanation:
I hope this helps! :)
The breaking of the bread and the pouring of the cup helps make present
Jesus' offering on the cross. *
A).True
B). False
Answer: True.
Explanation: I've been to church many times, but I can't remember those, but the last time I did go was a few years back, I can remember they poured wine and they brought bread as an offering from what I've seen.
Carbon is taken from the atmosphere through _______.
Answer: photosynthesis
Explanation:
Carbon is taken from the atmosphere through photosynthesis.
Answer:
Photosynthesis
Explanation:
Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals.
Hopefully this helped! :D
-LavenderVye
Farming the land has a decreasing effect on the overall amount of soil
erosion.
True or false ?
Answer:
False
Explanation:
Farming practices disturb the ground. Farmers remove native vegetation and then plow the land to plant new seeds. Tractor tires make deep grooves, which are natural pathways for water. Fine soil is blown away by wind.
Answer:
False.
Explanation:
Agriculture is perhaps the foremost vital activity that accelerates erosion due to the quantity of land that's farmed and the way abundant farming practices disturb the ground.
What tools can be used to make observations of the color of a mineral? WILL GIVE BRAINLEST PLS HELP
Hammer
Hand lens
Steel nail
Streak plate
1. Unmarked closed loops on a topographic map indicate ________________________.
2. True or false: Contour lines sometimes cross.
3. Contour lines are closer together at _______________________________slopes.
4. Contour lines are farther apart at ________________________________ slopes.
5. On a topographic map, the index contours are drawn thick and bold, state the elevation, and are usually drawn every_________ line.
Answer:
1. the tops of hills, mountains or depressions (dips)
2. false
3. steep
4. flat
5. fifth
Explanation:
hope it helped.
Which phase of the cell cycle occurs when the cell is preparing to divide so it grows in size making organelles and copying DNA
Answer:
Interphase
Explanation:
In interphase the cell replicates DNA and organelles to prepare for the rest of mitosis
A scientist studying the Milky Way galaxy notices a bright light in the sky. What information would she need to prove that the object is a comet and not a star?
Answer:
She would need lots of info, but some examples are,
A. Whether or not the subject is moving
B. Whether or not the subject disappears after a set amount of time
C. Whether or not the subject is near or far, and if it changes in size.
Explanation:
The correct answer is I and II.
A comet is made up of ice, dust, and small rocks or particles. They revolve around the sun and can be considered a member of the solar system. When they pass close to the sun they get heated due to solar radiation and start to release gases that are initially in the condensed phase. This release of gases produces a glowing tail behind the comet. When warmed up they produce a bright coma which can be of the order of several times the diameter of Earth.
Learn more about comets:
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If an animal fossil was found in a rock, what would be the best way to determine its absolute age?
*analyze the rock’s mineral composition
*take X-rays of the fossil and surrounding rock
*compare it to similar-looking fossils that have already been dated
*measure the ratio of a radioactive isotope and its decay product present in the rocks around the fossil
Answer:
D
Explanation:
Absolute age is defined as the numeric age of fossils.
To identify the absolute age of a fossil, the amount of certain radioactive elements in the rock are measured. When fossils are formed in the rocks, a small amounts of radioactive elements is included in it. The process to identify age of fossil using radioactive elements is known radiometric dating. So, radioactive isotope and its decay product gives absolute age of fossils.
Hence, the correct answer is "D".
NEED ANSWER ASAP!!!!
Write a short answer below describing each energy transformation in the diagram which is located
above. For example describe how photosynthesis captures energy in and releases energy out (include
what form of energy). Next describe how cellular respiration captures in and releases energy out (inlcude
in what form.)
Answer:
Photosynthesis: the plant takes in energy from the sun, converts it into glucose (photosynthesis), and releases energy as Oxygen Gas (O2)
Cellular Respiration: Food is taken in by the organism and process in the digestive system going through aerobic processes and is released by Carbon Dioxide (CO2).
Explanation:
You need Carbon Dioxide to start Photosynthesis including water and sunlight, the process inside the plant undergoes the Calvin Cycle, Carbon Fixation, and Reduction. Plants can also go into fermentation engulfing alcohol or lactic acid (when your muscles are sore after you work out). Oxygen gas is released after carbon fixation turning into pyruvate and is no longer needed to continue the process.
You need Oxygen Gas to start Cellular Respiration. Inside the cells, Glycolysis, Pyruvate Oxidation, the Krebs Cycle, and Oxidative Phosphorylation occur. After the reaction, Carbon Dioxide (CO2) is released from the cells as heat.
A scientist wants to observe how a plant reacts to a certain type of auxin hormone that the plant naturally produces. She places a small patch that releases auxin on one side of a plant. She places the plant in a room where light shines on the plant in all directions. A drawing of the plant before the experiment and after a week of the experiment is shown below.
Refer to the plant auxin experiment above. How did the plant respond to the auxin stimulus?
Answer:
it got weaker
Explanation:
\What did you have to do to turn an atom that is labeled “+ion or -ion” into a “Neutral Atom”?
Answer:if an atom is labeled as +ion then it needs electron to be neutral ,
but
if an atom is labeled as -ion then it has to lose electrons to be neutral.
Explanation:
A positive and negative ion can be converted to neutral by adding or deleting electrons respectively.
What is an Atom?It is the smallest particle that can represent an element. It is consist of electron, proton, and neutron.The electrons are negative particles and revolve around the nucleus. Protons are positive particles found inside the nucleus with neutrons. The number of positive and negative particles is equal inside a nucleus.A positive ion may lose one or more electrons and a negative ion may have one or more extra electrons.Therefore, a positive and negative ion can be converted to neutral by adding or deleting electrons respectively.
Learn more about Neutral Atom:
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A photon from the sun hits chlorophyll and excites an electron, known as _______ .
Tissues are Groups of ________ with a similar structure and function
A) Organs
B) Cells
C) Genes
Answer:
tissues are organisational level between cells and a complete organ.
Explanation: yes they are cells.
What is the threshold of the nerve transmission is referred to as
A- strength of repolarization
B- the frequency of action potential that occur down an axon
C- the action potential created when the potassium ions leaves the neuron
D-the total voltage change across the membrane during a resting potential
E-the minimum level of stimulus necessary for an action potential to occur
Answer:
it's called the threshold potential.
Explanation:
it triggers the nerve impulse, or action potential
How far is an astronomical unit (AU)?
Can anyone plz help me
Which of these levels of biological organization contains the other three?
A. Individual
B. Tissue probably not B not sure
C. Population
D. Community
Answer:
the answer is D
Explanation:
community comprises of individual and their population
describe how bears have evolved in order to be successful animal species?
Answer:
Evolution of Polar Bears
Explanation:The fossil transitions leading to our knowledge of development of the Polar Bear species are very well documented. Bear fossils change through time; i.e., as higher levels of sediments and sedimentary rocks are examined, more recent fossils are found.
The observed fossil transitions that inform our knowledge of Polar Bear speciation are very well documented. Bear fossils change through time: generally, when examining the fossil record, successively deeper levels of sediments or sedimentary rocks yield successively older fossils. For some transitions from one species to another, one can find a well-characterized series of transitional specimens leading the observer across the species "boundaries" (Kurten, 1976).
place the steps of protein production in the correct order
A strand of RNA is made
The DNA unzips
the RNA leaves the nucleus
a protein is produced
the RNA removes to the Ribsome
Answer:
A strand of RNA is made
The DNA unzips
the RNA leaves the nucleus
a protein is produced
the RNA removes to the Ribsome
Explanation:
Answer:
The DNA unzips
A strand of RNA is made
RNA leaves the nucleus
The RNA moves to the ribosome
A protein is produced
Explanation:
Got it right on edge 2022
What does it mean to impregnate xylem a cell wall?
Answer:
The walls of xylem cells are lignified (strengthened with a substance called lignin). This allows the xylem to withstand pressure changes as water moves through the plant.
Explanation:
The xylem transports water and minerals from the roots up the plant stem and into the leaves.
In a mature flowering plant or tree, most of the cells that make up the xylem are specialised cells called vessels.
Vessels:
Lose their end walls so the xylem forms a continuous, hollow tube. Become strengthened by a chemical called lignin. The cells are no longer alive. Lignin gives strength and support to the plant. We call lignified cells wood. Transport in the xylem is a physical process. It does not require energy.
