Answer:
ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins, although in some viruses RNA rather than DNA carries the genetic information.
Explanation:
Which statement is not an example of intercellular communication?
A A message is distributed across plasma membrane.
B A message travels between gap junctions.
C A molecule stimulates a target cell via a receptor.
D An electrical signal causes muscle cells to contract together.
Answer: The answer is A message is distributed across plasma membrane
Explanation:
I took the quiz
Answer: The answer is A message is distributed across plasma membrane
Explanation: trust me :)
Explain how human insulin is produced by genetic
engineering.
Answer:
The first product developed by genetic engineering was human insulin. It can be produced by using recombinant DNA technology. The gene responsible for producing human insulin protein is isolated.
Explanation:
PLEASE HELP
How do algae blooms destroy aquatic life?
depleting oxygen needed by organisms
by raising the water temperature
by getting into municipal water supplies
by giving off toxins that kill life
Answer:
A. Depleting oxygen needed by organisms
Explanation:
When the algae and bacteria in the algae bloom die, the decomposition process uses up most of the surrounding oxygen.
If fossils of fish and sea shells are found in an area that is now desert, we might assu
that:
• Fish could breathe air at one time in their history.
• Sea shells could live on land millions of years ago.
• The area in which the fossils were found was once covered with water.
• None of the above.
Answer:
The area once contained water.
Explanation:
Fish do not have the anatomical structures necessary for breathing on land. Even if they did, they would likely desiccate in the arid environment of the desert. The same reasoning applies to seashells. As a result, the environment must have been different in order to support the needs of these creatures. Since the Earth's continents are continuously shifting due to plate tectonics, and the Earth's climate changes over time, it would be reasonable to say that the desert was once a body of water that could support marine life.
(d) Predict the most likely cause of the F2 ratio obtained by the students in the second analysis between parental flies that are true-breeding for gray bodies and long wings and flies that are true-breeding for ebony bodies and curly wings. Provide reasoning to justify your prediction
Based on ransom crossing, the genotypic and phenotypic ratio of offspring depends on whether each trait is dominant or recessive.
What determines the phenotype of offspring in a cross between parents?The phenotype of the offspring or filial generation of a cross is determined by the genotype of the parents and the nature of the allele of the genes in the parents, whether they are recessive or dominant.
When two true-breeding species of organisms are crossed, the phenotype of the offspring will be determined by the dominant trait.
For examples, if parental flies that are true-breeding for gray bodies and long wings and flies that are true-breeding for ebony bodies and curly wings are crosed, the genotypic ratio and the phenotypic ratio will be as follows:
GGLL × ggll = GgLl, GgLl, GgLl, GgLl
Phenotypic ratio = 1 Genotypic ratio = 1Where:
G = gray body is dominantg = ebony body is recessive L = long wings is dominantl = curly wings is recessiveTherefore, the genotypic and phenotypic ratio of offspring depends on whether each trait is dominant or recessive.
Learn more about genotypic and phenotypic ratio at: https://brainly.com/question/7067339
are worm neurons alive????
Answer:
Yes
Explanation:
In the inner-world perspective of the simulation, the worm is absolutely alive as it is obeying the laws of physics as presented by the simulation.
Answer: Yes
Explanation:
Growing to just one millimeter in length, these simple creatures have only 302 neurons, or nerve cells, in their bodies, a tiny fraction of the 80 billion or so neurons in the human brain. ... They found the circuit has "command neurons" that release serotonin to increase movement in the worms.
Alfred Wegener believed that all of the continents were originally: a. a single landmass called Pangaea c. three landmasses called Europe, Asia, and Gondwana b. two landmasses called Eurasia and Gondwana d. none of the above
its A
Explanation:1. Explain the concept of "natural selection" using your moths as an example (please use the data you collected to support your answer).
Answer: Natural selection can be seen in peppered moths, according to Tutt. In the gloomy bush, the brilliant moth's camouflage had worn off. Because dark moths live longer, they have more time to breed in a dark forest. All living creatures are impacted by natural selection. The peppered moth's evolution is an evolutionary example of moth population-directed color change as a result of industrial pollution.
The natural selection is based on the suitability and adaptation of an organism with that environment.
What is natural selection?Natural selection is the process in which populations of living organisms are selected by natural forces. Nature selects organisms that have traits better suited to the environment than others.
In conclusion, that organism will survive and reproduce that is suitable to that environment.
Learn more about selection here: https://brainly.com/question/25261401
Define "population pressure."
Answer:
Explanation:
the force exerted by a growing population upon its environment, resulting in dispersal or reduction of the population.
List 3 functions of a government of a country
Answer:
What Are The Functions of Government?
1. Protect the Natural Rights. The primary functions of government are to protect the basic human rights which include right to life, liberty and to possess property.
2. Defend Against External Enemies. War across nations has been a constant condition since the beginning of civilization.
3. Managing Economic Conditions.
Explanation:
I need some notes about cell membrane
Answer:Cell membrane
Explanation:Forms a boundary between a cell and the surrounding environment and controls the passage of materials into and out of the cell.
Answer:
Cell Membrane (These are from my personal Biology Notes)-
Explanation:
Found in all cells (FIAC)
Selectivity permeable
Embedded with proteins
Regulates what enters or exits the cell
Phospholipid bilayer
Polar: head is hydrophilic (Likes water)
Nonpolar: tail; hydrophilic
What would I choose? Please help me!!??
Answer:
I believe your answer is B. Sorry if I am wrong.
Explanation:
I hope I helped
Have an AMAZING day. :)
Aquifers are _______. A. Located below the water table b. Important sources of freshwater c. Located in the saturated zone d. All of the above Please select the best answer from the choices provided A B C D.
Aquifers located below the water table, important sources of freshwater, and located in the saturated zone.
What are aquifers?
Aquifers are underground, present layers of rock or sand that bear water.
Aquifers are bodies of permeable rock or sediment that have been flooded by groundwater.
As rainwater penetrates through the earth, groundwater enters an aquifer.
It has the ability to migrate through the aquifer and reemerge via springs and wells.
Thus, the correct option is D, all of the above.
Learn more about aquifers
https://brainly.com/question/10609623
Answer:
Explanation:
the answer is d I got it right
True or false? fruits provide food to the developing plant.
Answer:
False
Explanation:
Fruits protect seeds and aid in their disperal, the endosperm provides food to the developing plant
When a strand of dna was replicated, one base was left out. Why would this be more damaging than if the base was only changed?.
Leaving out a base during the process of replication is quite dangerous because this may result in a non-functional protein.
Incomplete proteinWhen a base is left out during replication and the mRNA generated is used to synthesize protein, the codons will be incomplete and will result in an incomplete or non-functional protein.
Codons are in a base of 3. Thus, leaving out a base means that an entire codon has been rendered useless. This also means that the amino acids of the protein synthesized will be incomplete.
This either results in a totally different or non-functional protein.
More on mutation can be found here: https://brainly.com/question/17106056
determine a closed container of liquid soap is 10 cm tall. You squeeze on the containers top with pressure of 1,000 Pa. whats the pressure at the bottom
Answer:
It state that the pressure of a fluid decreases when the speed of that fluid increases
Answer:
1,000pa
Explanation:
It will stay as 1,000pa for the bottom because it is a closed container.
According to Pascal's Principle, when pressure is applied to a fluid in a closed container, the pressure increases by the same amount everywhere in the container.
I hope this helps!
Hello people ~
Anemophily takes place by:
(a) By Bird
(b) By Bat
(c) By Snail
(d) By Wind
Answer:
(d) wind
Explanation:
Anemophily is the process by which pollen is transported from one plant to another via aer currents. Wind pollinates approximately twelve percent of the world's flowering plants, including grasses, cereal crops, many trees, and the notorious allergenic ragweeds.
I am joyous to assist you at any time.
solve this equation 1/6x-2/3=1/2x-5/6
Answer:
1/2
Explanation:Subtracted 1/2 from 1/6 to get -1/3 x. Then add 2/3 to -5/6
Answer: No solution
Steps: ⅙x - ⅔ = ½x - ⅚
Subtract ½x from both sides: ⅙x - ⅔ - ½x = ½x - ⅚ - ½x
Simplify: -⅔ ≠ -⅚
They are not equal therefore there is no solution.
Plz mark brainliest:)
7th grade science
PLEASE HELP MEEEEE!!!!!!!
Answer:
Eukaryotic because it has a nucleus
Explanation:
i need helppp pleaseee
What factor contributes to the animal being labeled as a top breed
Answer:
The existence of desirable traits
Explanation:
because its definitely not genetics
Which method of energy production produces glucose and oxygen?
A.photosynthesis
B.cellular respiration
C.fermentation
Answer:
the answer is A
Explanation:
One of the reasons why it is so difficult to quit smoking cigarettes is that nicotine may lead to an increased activation of ________ neurons.
It is so difficult to quit smoking cigarettes is that nicotine may lead to an increased activation of dopamine neurons.
What is dopamine neurons?Dopamine neurons play an important role in the control voluntary movement and behavioral processes such as mood, reward, addiction, and stress.
This nicotine activates the dopamine neurons that begins the response that leads to feelings of pleasure and reward, and then addiction.
Learn more about neuron here: https://brainly.com/question/13061744
why do you think the nuchal lines might be helpful for distinguishing males from females
Answer:
These lines serve as anatomical reference points while performing a skull examination. They also serve as attachment places for some of the muscles that regulate the head and neck. Several muscles, notably the trapezius, have attachment sites along the superior nuchal line.
In conclusion, write down at least two pieces of evidence showing that Earth’s atmospheres or oceans have changed over time. Provide reasoning for each piece of evidence.
The biosphere is part of the carbon cycle, but what if there were no biosphere? Is the biosphere necessary for the carbon cycle? In 3-5 sentences, explain why or why not. answer needed soon please help
Answer:
The carbon cycle describes the way the element carbon moves between the Earth's biosphere, hydrosphere, atmosphere, and geosphere. It is important for a few reasons: Carbon is an essential element for all life, so understanding how it moves helps us to understand biological processes and factors that influence them.
Explanation:
The biosphere is the ecosphere that contains the biotic and abiotic factors and the energy and the nutrient flow between them. It is the region of the earth that is composed of life and matter.
Yes, the biosphere is necessary for the carbon cycle.
The importance of the biosphere:The biosphere is essential as it maintains and provides the environmental circumstances for living organisms. The plants and animal-related activities that contribute to the carbon cycle occurs here.The plant in the biospheric region utilizes the carbon dioxide for the process of food and energy production while the animals release the carbon dioxide back into the atmosphere by the process of exhalation.Therefore, the biosphere is part of the carbon cycle.
Learn more about biosphere here:
https://brainly.com/question/6074924
will the seasonal consequences of tides, such as flooding, occur in the same season all around the globe?
Help
Answer:
Flooding is common throughout many areas within the United States and can be prevalent during particular times of the year in the particular areas. Though there is no specific flood season, most flooding occurs in the U.S. from spring to fall. Flooding is also more likely to occur in areas which have seasonal rainstorms, flood-prevalent topography like desert topsoil or a location along the coast.
After Mrs. Kirby received nutritional advice, her neighbor asked for her help with calculating the contribution of energy from fats in her diet. For a long time, her doctor has been telling her to lower the fat intake below 30
%
of her total calories, but she does not really know how to do it--much less how to calculate it.
Mrs. Kirby explained how she did her calculations, and the neighbor showed her "her numbers." Together they came up with total calorie intake of 2200 kcal and 63 g of fat.
What is the percentage contribution of energy from fat in Mrs. Kirby's neighbor's diet?
Answer:
61%
Explanation:
Ozone depleting substances like CFCs go away quickly
Answer:
FalseExplanation:
I assume this is a true/false. In this case, the answer is false. CFCs were banned in the 1990s, because they cause significant damage to the ozone layer and don't dissipate easily.
A cell undergoes mitosis three times. How many daughter cells are produced?
A. 16
B. 2
C. 4
D. 8
Answer:
B A cell is a undergoes mitosis time
Answer:
8
Explanation:
a cell with 20 chromosomes that undergoes mitosis three times will have 8 daughter cells produced .