Answer:
Adolescence is the period of transition between childhood and adulthood. It includes some big changes—to the body, and to the way a young person relates to the world.
The many physical, sexual, cognitive, social, and emotional changes that happen during this time can bring anticipation and anxiety for both children and their families. Understanding what to expect at different stages can promote healthy development throughout adolescence and into early adulthood.
Which carries the code for protein synthesis from the cell nucleus to the cytoplasm?
Answer:
mRNA, or messenger RNA
Answer:
the right answer would be MRNA or the messenger of RNA
Explanation:
Changes in DNA sequence from one generation to the next may result in offspring that are altered in fitness compared with their parents. The process of change and selection over the course of many generations is the basis of
Answer:
This question lack options, options are:
A. Mutation
B. Evolution
C. Heredity
D. Reproduction
The correct answer is B.
Explanation:
Evolution is essentially a process of genetic change over time, that is, it is the result of accumulated changes in the composition of the gene pool. Variation is the raw material of evolution. Without genetic variation, evolution is not possible. The ultimate source of all genetic variation is mutation. A mutation is a stable and inheritable change in genetic material. Mutations alter the DNA sequence and therefore introduce new variants. Many of these variants are usually eliminated, but occasionally some of these variants can be successful and incorporated into all individuals of the species. Mutation is a factor that increases genetic diversity. This is how evolution explains the origin of various life forms as a result of changes in their genetic load. The inheritance of these variations through offspring of parents who carry the variation, although the genetic endowment of a single organism is the same throughout life, the genetic makeup of a species, understood as a whole (genetic background), changes throughout from many periods of life. Mutations and variability, the product of natural DNA recombination, provide diversity in the genetic material of a species.
Using a series of arrows, draw the branched metabolic reaction pathway described by the following statements, and then answer the question at the end. Use red arrows and minus signs to indicate inhibition.
L can form either M or N.
M can form O.
O can form either P or R.
P can form Q.
R can form S.
O inhibits the reaction of L to form M.
Q inhibits the reaction of Oto form P.
S inhibits the reaction of O to form R.
Which reaction would prevail if both Q and S were present in the cell in high concentrations?
a. L → M
b. M → O
c. L → N
d. O → P
Answer:
1) The branched metabolic reaction pathway is attached.
2) The most prevalent reaction is L-->N
Explanation:
The reaction that eventually will prevail is the formation of the N molecule.
When Q and S are in high, they will inhibit the formation of P and R which are the molecules that form them. So, Eventually, there will not be P and R molecules, and hence, there will not be any more Q and S molecules.
L can still form equally M and N molecules. But as M forms O, and O inhibits M formation, with time, the higher O concentration is, the less M formation there will be.
On the other hand, N has no molecule that inhibits its production. So L turns to N formation, predominating this reaction.
The reaction that would prevail if both Q and S are present in the cell in high concentrations is L → N (Option c).
In a chemical reaction, a substrate is a molecule that reacts with a given enzyme to generate one or more products.In this case, L is the first substrate whose reaction produces N and M, while Q and S are the last products observed in this series of reactions.In turn, M acts as a substrate to form O as an intermediate, which subsequently serves as a substrate to form P and R.Finally, P serves as a substrate to form Q, while R serves as a substrate to form S.The series of chemical reactions are as follow:
L → N + M → O → P + R → Q + SIn this case, it is also important to remark that a given product of a chemical reaction can also inhibit the enzyme's activity (e.g., O is an intermediate that inhibits the formation of M).In consequence, the reaction that would prevail if both Q and S are present in the cell in high concentrations is L → N (Option c).
Learn more in:
https://brainly.com/question/1160198
What brings greater concentrations of dissolved nutrients to the ocean surface?
Answer: Upwelling
Explanation:
Upwelling is a process of movement of dense, cold and nutrient rich water from the bottom of the ocean to the surface layers due to wind currents. This process replaces the warm and nutrient deficient water from the surface.
This process is useful for the growth of phytoplanktons and other sea plants growing in the surface layer of oceanic water.
WORLD POPULATION GROWTH
20.000
10.000
World
5.000
Asia
Millions of people
2.000
Africa
1.000
Europe
500
200
United States
Mexico, Canada, & Greenland
100
Central America,
50 Caribbean Islands, &
South America
Oceania (Australia &
nearby islands in the Pacific)
10
1980
1950
1960
1970
1990
Year
Based on the information in the graph, which region's population will grow the
most in the next 40 years?
2000
2010
2020
2030
2040
2050
O A. Europe
O B. United States
O C. Asia
D. Africa
Answer:
option D
Explanation:
more than half of global population growth between now and 2050 is expected to occur in Africa. Africa has the highest rate of population growth among major areas
Based on the information in the graph, it is clear that Africa's population will grow the most in the next 40 years. Therefore, option (D) is correct.
Population refers to the total number of individuals of a particular species living in a specific geographic area at a given time. It is an important concept in ecology, as the size of a population can have significant impacts on the environment, other species, and human societies.
Populations can be studied at different levels of organization, from individual organisms to entire ecosystems, and can be characterized by a range of variables, including age structure, sex ratio, population density, and growth rate. Understanding population dynamics and how they are affected by factors such as competition, predation, disease, and human activities is crucial for effective conservation and management of natural resources.
Africa's population is currently only at 1,000 million people, which is much smaller than the population of Asia, which is at millions of people. Additionally, the graph shows that Africa's population is projected to increase rapidly in the coming decades, while other regions are projected to have more modest increases.
Learn more about population, here:
https://brainly.com/question/27991860
#SPJ7
What occurs when two species have the
need for the same resource?
Answer:
Competition. Additionally, with competition comes survival of the fittest.
Explanation:
Competition is formed when more than one species must fight for the same resource/commodity.
10. In the water cycle, liquid changes to gas by
O precipitation
O condensation
evaporation
O freezing
Answer:
evaporation
Explanation:
when the liquid heated for a long time it removes steam in form of gases
In the water cycle, liquid changes to gas by evaporation, which is in Option C. The water cycle, also known as the hydrological cycle, describes how water circulates through the Earth's ecosystems.
What is the water cycle?The water cycle involves a series of processes that include evaporation, condensation, precipitation, and infiltration. Evaporation is the process by which water changes from a liquid state to a gaseous state, such as water vapor. This occurs when energy (in the form of heat) is absorbed by the water, causing the water molecules to move faster and break free from their bonds to form a gas. After water evaporates, it can undergo condensation, which is the process by which water vapor changes back into liquid water.
Hence, in the water cycle, liquid changes to gas by evaporation, which is Option C.
Learn more about the water cycle here.
https://brainly.com/question/1151425?
#SPJ7
Rutherford tracked the motion of tiny, positively charged particles shot through a thin sheet of gold foil. Some particles traveled in a straight line and some were deflected at different angles. Which statement best describes what Rutherford concluded from the motion of the particles? Some particles traveled through empty spaces between atoms and some particles were deflected by electrons. Some particles traveled through empty parts of the atom and some particles were deflected by electrons. Some particles traveled through empty spaces between atoms and some particles were deflected by small areas of high-density positive charge in atoms. Some particles traveled through empty parts of the atom and some particles were deflected by small areas of high-density positive charge in atoms.
Answer:
Some particles traveled through empty parts of the atom and some particles were deflected by small areas of high-density positive charge in atoms.
Explanation:
Rutherford concluded from his experiment that there are empty spaces present in most parts of the atom while a heavy positive charge is present in the nucleus of an atom due to which the tiny positively charged particles deflects because of positive-positive charge repulsion. Most of positively charged particles passes undeflected which indicated the presence of empty spaces in the atoms. The electrons revolve around the nucleus have no effect on the deflection of positively charged particles.
Rutherford conducted a legendary experiment to determine atomic structure in which he bombarded a thin gold foil with alpha particles. In the aftermath of the experiment he concluded that; Some particles traveled through empty parts of the atom and some particles were deflected by small areas of high-density positive charge in atoms.
The gold foil experiment showed that the atom is composed of a massive core which contains positively charged particles.
This massive core is at the center of the atom surrounded by electrons that move in orbits. Hence, the resulting model of the atom was called the planetary model.
The deflected positively charged particles were deflected by this small area of high-density positive charge in atoms.
Learn more: https://brainly.com/question/730256
Consider this animal cell. Which organelle is labeled A.
.
Mitochondrion
Ribosome
Golgi apparatus
Lysosome
Answer:
Golgi apparatus is the answer on e2020 !!!!
Explanation:
Imagine that you have added a fluorescent tag to all of the amino acids inside of a bacterium. You then infect the bacterium with a phage. At the end of the phage's lytic cycle, you examine the new phage particles for fluorescence. Which of the following new phage particle components would you expect to exhibit the fluorescent tag?A. phage DNAB. phage RNAC. phage capsomeresD. A and BE. A, B, and CF. none of the above
Answer:
The answer is A.
Explanation:
The bacteriophage is an organism that attacks bacteria and uses them to replicate it's DNA to reproduce and multiply.
If all the amino acids of the bacteria are flagged with fluorescent tag, then the new bacteriophage's DNA will exhibit the fluorescent tag because it will be constructed using the bacteria's protein molecules in the first place. So the answer is A.
I hope this helps.
Two children attend the same preschool, but one child is at the facility on Mondays and Wednesday, while the other child attends the facility on Tuesdays and Thursdays. Both children become ill with Erythema infectiosum within a day of each other. What is this type of pathogenic transmission called
Answer:
Fomite transmission.
Explanation:
This is a form of indirect transmission. This type of transmission occurs when inanimate object are involved in the indirect transfer of the pathogens to an uninfected host.
The inanimate object is often referred to as fomites.
In this example, the facilities in the daycare would be the fomites involved in the indirect transfer of the pathogen from one child to the other child.
who is Charles darwin
Answer:
Charles Darwin came up with the theory of evolution.
Charles Darwin is a writer who wrote the book Orgin of species . He is the one that gave the idea of evolution . his proposition that all species of life have decended over time from common ancestors. He is a english naturalist, geologist and biologist
Which inequalities are true? Check all that apply.
DOVE
Vo <3
Vox
V6 <2
V6 > 8
16
Answer:
Vo<3, V6<2,
Explanation:
Inequalities is a mathematical expression use to relate two values together.
From the above question, Vo<3, V6<2 is the true because the two option relate two values together.
Vo< 3 because V0 present is one and it is less.
V6 <2 is because V6 is not up to 2.
Explain TWO strategic ways employed by microbes of extreme environments that enable them withstand harsh environmental and physical conditions
Answer:
Explanation:
Some microbes are thermophiles and they can survive in area with high temperature between 45 -80°C, they are chemoautotroph in nature, oxidizing sulphur to products acids such as sulfur in the environment. This acid also help them to better adapt to the environment as many thermophiles likes acidic environment.
Thermophiles body has saturated and straight chain fatty acid that helps prevent denaturation which enables them grow and thrive in harsh weather condition by providing the fluidity that is needed in membrane function.
Thermophiles are also small in sizes this ensure there stability.
Explain why detritivores, decomposers and omnivores are not assigned trophic level
Answer:
They can be found in several trophic levels, as they are related with several trophic level, hence, they cannot be placed on a specific trophic level.
Explanation:
A trophic level is a specific position occupied by a group of organisms on a good chain in relation to their nutrition.
Dentrivores feed on the waste of other organisms and cannot be really placed on a specific trophic level, likewise decomposers, of which they feed and decompose the body of organisms.
Omnivores feed on both plants and animals, which includes producers and consumers. Placing omnivores on a specific trophic level would not be really straightforward also.
How have the fields of biotechnology, genetic engineering, and molecular biology affected the agricultural job
market?
A.They have created more jobs
B.They have spread the industry internationally
C.They have made the market obsolete
D.They have decrease the demand for farmers
Answer:
I think It's A. Hope it helps! :)
Explanation:
5 Points
Great Britain would have a much colder climate than it does if not for the
O A. polar easterlies
B. gulf stream
C. trade winds
D. jet stream
SUBMIT
Hello There!
Answer:
B. Gulf stream
Explanation:
Great Britain would have a much colder climate than it does if not for the gulf stream.
Each clan will be isolating two different bacteria,Pseudomonas sp. and Bacillus sp., from the same soil sample. What two traits provide the basis of your Pseudomonas sp. enrichment strategy
Answer:
The former bacteria, Pseudomonas sp., has the ability to utilize benzoate as a source of carbon. Pseudomonas sp. can also migrate in the direction of areas with higher oxygen concentrations.Whereas the latter, Bacillus sp., does not possess these characteristics.
Explanation:
The two traits mentioned above will provide the basis upon which the strategy for enrichment can be made.
Dermis _____ system is responsible for thermoregulation and for development of inflammatory skin processes
Answer:
Integumentary system
Explanation:
This system is responsible for development of skin, hair, nails, glands, and nerves and it serves as a protector. There are many organs in this system too.
Use this dichotomous key for insect identification to identify the insect shown. 1. a. Insect has one pair of wings. Order Diptera b. Insect has two pairs of wings. Go to #2 2. a. Front wings thicker in texture than hind wings Go to #3. b. Front and hind wings are same texture throughout. Go to #4 3. a. Front wings are short Order Dermaptera b. Front wings cover entire abdomen Order Coleoptera 4. a. Wings with scale on all parts of their area. order Lepidoptera b. Wings without scales Go to #5. 5. a. Hind wings smaller than front wings. Order Ephemeroptera b. Front and hind wings nearly equal in size. Order Odonata An insect with 2 pairs of wings is standing on a branch. The insect pictured is in the order Diptera. Ephemeroptera. Coleoptera. Odonata. WILL GIVE BRAINLIEST ANSWER asap
Answer:
The correct answer is Odonata.
Explanation:
Dichotomous key is an instrument that permits users to decide or identify the organism correctly in the natual world. It is utilized in distinguishing plant and creature species dependent on their characters.
Using the key :
the Odonata has following characters
1. Insect has two pairs of wings. so go to 2
2. Front and hind wings are same texture throughout. so go to 4
3. Wings without scales so Go to 5
4. Front and hind wings nearly equal in size so 5b that is Odonata.
Answer:
The correct answer is Odonata.
Explanation:
Dichotomous key is an instrument that permits users to decide or identify the organism correctly in the natual world. It is utilized in distinguishing plant and creature species dependent on their characters.
Using the key :
the Odonata has following characters
1. Insect has two pairs of wings. so go to 2
2. Front and hind wings are same texture throughout. so go to 4
3. Wings without scales so Go to 5
4. Front and hind wings nearly equal in size so 5b that is Odonata.
The ___ cycle is not a nutrient cycle.
Answer:
water cycle
Explanation:
What is the basic unit of structure and function of all living organisms?
mitochondrion
DNA
nucleus
cell
answer:
the answer is d. (cells)
Which of these statements best explains why the rainfall in volcanic regions increases after a volcanic eruption?
The volcano releases particles which help form water droplets.
The volcano releases heat causing clouds to form.
The molten lava from the volcano helps form water droplets.
The increase in fertility of soil around the volcano helps produce rain.
Answer:
The volcano help releases particles which help rain to fall.
Explanation:
Volcano is a form of opening in the Earth crust that make particles that are warmer in it surronding such as magma, hot lava, volcanic ashes to escape from beneath it. Volcano happen as a result of magma rising above Earth surface making the bubbles to spring forth. There is rain, lightning and thunder during volcanic eruptions.
Rainfall near a volcanic region increases after volcanic eruptions because all the ash particles that rises to the atmosphere attract and collect water droplets, thereby causing abundant of rainfall wen the water droplets are released.
Why would damage to the nervous tissue in the spinal cord lead to paralysis?
Damage results in the loss of signals to muscles to produce movement.
Damage results in the inability of the body to differentiate between voluntary and involuntary movement.
Damage results in the inability of the body to produce connective tissue to support movement.
Damage results in the decreased production of actin and myosin for contraction
Answer:
B. Damage results in the inability of the body to differentiate between voluntary and involuntary movement
Explanation:
Answer:
b
Explanation:
what is a animal and what types of animals are there
Answer:
Animals are multicellular eukaryotic organisms that form the biological kingdom of Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development.
Explanation:
Scientists have recently estimated that there are approximately 8.7 million species on Earth. They believe that 1-2 million of those species are animals.
Several genes in humans in addition to the ABO gene (I ) give rise to recognizable antigens on the surface of red blood cells. The MN and Rh genes are two examples. The Rh locus can contain either a positive or a negative allele, with positive being dominant to negative. M and N are codominant alleles of the MN gene. Suppose a child's blood type is B MN Rh(neg). The mother's blood type is O N Rh(neg). Check all of the blood types below that the father could have. (Assume no involvement of the Bombay phenotype; everyone is HH).
A. O M Rh- O M Rh -
B. B MN Rh+ B MN Rh+
C. A M Rh+ A M Rh+
D. O MN Rh+ O MN Rh+
E. B MM Rh+ B MM Rh+
F. B NN Rh-
Answer:
Option B and E
Explanation:
Since the child's blood type is
B (BB or BO) MN Rh(neg)
The mother's bloodtype is
O (OO) N (NN) Rh(neg)
To produce a child with the B bloodtype when mother is OO, the father has to have either one or two copies of the B bloodtype (BB or BO).
To also produce a child with MN Bloomington when mother is NN, the father has to have either the M (MM) bloodtype or the MN bloodtype.
Thus, the father's bloodline could be
B M bloodtype Rh(+)
Or
B MN bloodtype Rh(+)
Colistin is an antibiotic used to treat infections in the bloodstream. Some bacteria are resistant to Colistin. Explain how these bacteria have become resistant to Colistin.
Answer:
They have adapted to it
Explanation:
when the community climax in an ecosystem has only a single type of climax, the development of the climax community is controlled by ___ of that region.
a) the climate
b) the life forms
c) the soil texture
d) the pioneer community
Answer:
A.
Explanation:
because the climax community is composed of species beat adopted to average conditions in that area
When the community climax in an ecosystem has only a single type of climax, the development of the climax community is controlled by the climate of that region. Option A is correct.
The climate of a region is the most important factor that controls the development of a climax community. The climate determines the temperature, precipitation, and other abiotic factors that influence the growth and survival of plants and animals.
In a region with a single type of climax community, the climate is relatively uniform and there is little variation in the abiotic factors. This means that the same species of plants and animals will be able to survive and thrive in the region, regardless of the specific location. The life forms, soil texture, and pioneer community can all influence the development of a climax community, but they are not as important as the climate. Option A is correct.
To know more about the Ecosystem, here
https://brainly.com/question/11014883
#SPJ2
If two people with sickle cell trait have children, what is thechance that a child will have normal RBCs in both high-and low-oxygen environments? What is the chance that a child will have sickle cell disease? Write the possible genotypes in the Punnettsquare.
Answer:
See the answer below
Explanation:
The chance that a child from two people with sickle cell trait will have normal RBCs remains the same irrespective of the amount of oxygen in the environment. From the cross:
AS x AS
AA AS AS SS
Hence, the chance of having a child with normal RBCs in both high and low-oxygen environments is 1/4 or 25%.
The chance that a child will have sickle cell disease is also 1/4 or 25%.
The possible genotypes in a Punnet's square can be seen in the attached image
3. Mutations that occur in the BPG binding cavity on deoxyhemoglobin can at times result in the substitution of lysine and histidine residues present with aspartic acid and phenylalanine residues. Explain how these changes would impact BPG binding to deoxyhemoglobin along with the impact it would have on oxygen transport with hemoglobin
Answer:
It affects the oxygenation of the tissues in a negative way, that is, causing tissue hypoxias.
Explanation:
What will happen is that BPG, having a different relationship with deoxyhemoglobin, hemoglobin will not give oxygen to organs or tissues during glycolysis at times when the sympathetic nervous system is activated or even in the maintenance of physiological tissue vitality, therefore it will trigger a drop in the partial pressure of the gas both in the blood and in the tissues since they will be retained in the hemoglobin structure without being able to release it.