what are the changes seen in boys at the time of puberty?
Answer:
Hair growth on chest, legs, genital area, under armpits & on arms.Broader chest & shouldersGrowth in heightHair on faceOily skin which results in pimples.Transformation is a process in which bacteria take up new DNA released by dead cells and integrate it into their own genomes (see Chapter 9). In Streptococcus pneumoniae (which causes many cases of pneumonia, inner-ear infections, and meningitis), the ability to carry out transformation requires from 105 to 124 genes, collectively termed the com regulon. The com regulon is activated in response to a protein called competence-stimulating peptide (CSP), which is produced by the bacteria and exported into the surrounding medium. When enough CSP accumulates, it attaches to a receptor on the bacterial cell membrane, which then activates a regulator protein that stimulates the transcription of genes within the com regulon and sets in motion a series of reactions that ultimately result in transformation. Does the com regulon in S. pneumoniae exhibit positive or negative control
Answer:
Positive (inducible)
Explanation:
Increased levels of CSP induce the receptor to stimulate transcriptional activator functions, which allow gene expression to occur similar to what happens in positive inducible.
The diagram right shows parts of the human brain.
What part of the brain is the temporal lobe?
A. 1
B. 2
C. 3
D. 4
First, describe why an animal is considered a system. Then, explain why an animal is not considered a technological system. ▲
COMPLETE THE SENTENCES: 1. MARY ____________ A GIRL. 2. _Fabricio is _ A BOY. 3. WE ARE __________________________ 4. I AM ____________________________ 5. IT IS A ___________________________ 6. THEY ______________ MY FRIENDS. 7. ROSE AND LUPE ____________ GIRLS. 8. MY ENGLISH TEACHER ___________PILAR.
Answer:
. Mary is a girl .
2. Fabricio is a boy .
3. We are students .
4. I am so beautiful .
5. It is a cute puppy .
6. They are my friends .
7. Rosé and lupe are girls .
8. My English teacher is a pilar
Explanation:
Hope it was correct & helpful for u dear :)
need help ASAP. thought it was C but i got it wrong.
Which of the following is a result of geological changes that impact the dynamics of an ecosystem?
Humans introducing an invasive species, resulting in loss of biodiversity
Speciation, causing an increase or decrease in competition among different species
Habitat fragmentation, due to the construction of new housing complexes
Pollution from factories, causing increasing atmospheric carbon dioxide
Answer: B speciation causing an increase or decrease in competition among different species.
The other choices are the HIPPCO or the human impacts that cause extinction not geographical changes
The geological changes that impact the dynamics of an ecosystem Speciation, drive an increase or decrease in contest among different species.
What is the process of speciation?Speciation is the process by which new species form. It happens when groups in a species become reproductive remote and branch.
In allopatric speciation, sets from an established population grow into various species due to years of geographical separation.
Thus, option "B" is correct, Speciation is how a new type of plant or animal species is created.
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George buys a car from his neighbor. He gives the neighbor $2,000 when they make the agreement and then pays her $300 a month until the car is paid for. What is the $2,000 he pays called?
a.the monthly payment
b.the down payment
c.the total amount of the loan
d.the amount of the deductible
Answer:
b. the down payment
Explanation:
the down payment
conclude: How does stocking rivers with salmon bred in captivity affect egg size?
Answer:
Explanation:
Salmon that have been bred in captivity are added to rivers to help increase population levels. Scientists hypothesized that in rivers that had significant percentages of captive salmon being added, there would be rapid evolution toward smaller egg size in future generations of salmon.
How many of the hypothetical offspring produced during this lab activity had the same phenotype?
Help please!! I'll name you brainliest!!
Answer:
Aerosol they leave freely through the ozone.
Explanation:
I looked it up!
What part of the water cycle is in the atmosphere?
good morning ,have a great day ahead.
can someone help meee!!!
true or false?
Carnivores include lions, polar bears, hawks, frogs, salmon, and deer.
alafood chain
Answer:
false
Explanation:
deer are not carnivores
a carnivore is an animal that only eats meat, and some of these animals also eat plants (like baby frogs/tadpoles, which are herbivores)
[herbivore: only plant]
[omnivore: plant and animal]
[carnivore: only animal]
[decomposer: dead organisms]
A(n)
is equal to 2,000 pounds.
A) infrastructure
B) short ton
C) fusion
D) gyre
E) fission
Answer:
B) short ton :)
what does the circulatory system do with glucose and oxygen?
Answer:
Delivers oxygen and nutrients, including glucose, to the body's cells.
Explanation:
Answer:
the circulatory system perform a number of roles in glucose which they deliver oxygen and nutrients to the body's cells
What is the main function of a plant stem?
The primary functions of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products by photosynthesis; and to transport these products from the leaves to other parts of the plant, including the roots.
PLEASE HELP YOU WILL GET MARKED THE BRAINIEST
CAN YOU GIVE ME IMPORTANT FACTS OR JUST REGULAR FACTS ABOUT THE LAW OF UNIVERSAL GRAVITATION
Answer:
F=force
G=gravitational constant
m_1 =mass of object 1
m_2=mass of object 2
r=distance between centers of the masses
Explanation: Newton's law of universal gravitation is usually stated as that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers
Self-heating cans use the concept of an interior heating vessel that is able to warm up food. The diagram below shows a model of how a self-heating can works.
When the activation button is pressed, the water is released into the calcium oxide. When the water and calcium oxide mix, a chemical reaction occurs and releases heat, which is able to heat the soup in the can. Which statement best describes the interior heating vessel?
A.
It is able to produce a larger quantity of food through the process of a chemical reaction.
B.
It is designed to insulate thermal energy from moving from one medium into another.
C.
It is able to regulate the flow of the calcium oxide and water into the food to make it warm.
D.
It is designed to control when thermal energy is produced and where it can flow.
D. It is designed to control when thermal energy is produced and where it can flow. The interior heating vessel contains the calcium oxide and water separately until the activation button is pressed, which allows them to mix and undergo a chemical reaction that releases heat.
What are Self-heating cans?Self-heating cans are a type of food packaging containing all the necessary components to heat the food within the can without needing an external heat source. These cans are designed for convenience when there is no access to a stove, microwave or other traditional heating sources.
What is the use of self-heating cans?Self-heating cans are often used for ready-to-eat meals, soups, and other similar food products. They are popular for outdoor activities such as camping, hiking, and emergencies where access to heat sources is limited. However, they can be more expensive than traditional canned foods and are not always easily recyclable.
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Explain why the pulse rate taken at the wrist could actually be lower than if you listened to the heart rate with a stethoscope right over the heart.
Answer:
under
Explanation:
To accurately test for a slow heart rate, a person must measure their resting heart rate. To achieve this, they must avoid checking the pulse shortly after exercising or waking up.
To check the pulseTrusted Source, a person should sit in a comfortable and relaxed position and feel for the pulse at the wrist. If unable to locate the pulse at the wrist, they should try feeling for the pulse on the side of their neck.
To work out their heart rate, the person counts heartbeats for 10 seconds, then multiplies the number by six. For a more accurate pulse, the person can count the number of beats for a full minute. This figure is the resting pulse.
If the number is lower than 60, a person has bradycardia.
 hold your hand in front of your face. Look at it with one eye closed. Then with other explain why the image of your hand shifts
Answer:
when you look at your hand from one eye, then the other, the angle from which you're looking at your hand changes, causing it to look slightly different.
Clasisifcar los huesos del esqueleto apendicular y axial en : largos, cortos, planos, irregulares, sesamoideos. ayudaaa por favor!!
Answer: Se clasifican de acuerdo a la forma y tamaño.
Explanation:
El esqueleto posee distintas funciones como el soporte del cuerpo en sí y la protección de órganos vitales. Para lograr esto, existen distintos tipo de huesos con distintas formas, de acuerdo a su ubicación y función.
Los huesos del esqueleto humano se dividen en dos grandes grupos:
Esqueleto apendicular: Huesos que forman los miembros superiores e inferiores, además de la cintura escapular y la pelviana. El esqueleto axial: Huesos del eje largo del cuerpo en la cabeza, columna y caja torácica.Tanto en el esqueleto apendicular como en el axial, existen cinco tipos de huesos: largos, cortos, planos, irregulares, sesamoideos.
Largos: Se clasifican así por ser mas largos que anchos y su función es la de soportar el peso del cuerpo y producir movimiento. Se ubican principalmente en el esqueleto apendicular como por ejemplo, huesos del miembro inferior como el fémur, tibia y peroné de las piernas. Además de los huesos en los miembros superiores como radio, húmero, cúbito en los brazos; y falanges metacarpianos en las manos.Cortos: Se clasifican así por tener aproximadamente la misma longitud que ancho, y su función es proporcionar estabilidad y movimiento. Estos huesos se ubican en articulaciones del tobillo y muñeca. y algunos ejemplos son los huesos tarsianos en tobillos (navicular, cuboides, astrálago, calcáneo, cuneifrome lateral, intermedio y medial); y los huesos carpianos de la muñeca (piramidal, pisiforme, trapezoide, trapecio, escafoides, hueso ganchoso, hueso semilunar, hueso grande)Planos: Son huesos de forma plana y su tamaño de área grande sirve para la unión de distintos músculos. Su función principal es la de la protección de órganos internos. Entonces, se encuentran en la caja torácica (donde se encuentran por ejemplo las costillas y esternón), y en la pelvis (donde se encuentra el ilion, isquion y pubis). También forman parte de la estructura ósea de la cabeza, donde se hallan los huesos occipital, frontal, parietal, lagrimal, nasal y vómer.Irregulares: Su forma y estructura es variable además de que pueden tener forma compleja. Su función es la de proteger órganos internos, por ejemplo a la médula espinal que es protegida por las vértebras y huesos irregulares de la columna vertebral .Sesamoideos: Huesos redondos en tendones donde los protegen del deterioro, particularmente en los tendones de las manos, pies y rodillas, como por ejemplo la rótula.I'm sleepy, hot, and my body feels heavy. Is there something wrong?
Answer:
fatigue
Explanation:
I'm sorry to break it to you, but these are some serious symptoms, and you definitely shouldn't ignore them. You're going to die, my friend! Say your prayers, and start digging your grave...
WILL GIVE BRAINLIEST!
Consider the attached genetic code chart and the following DNA sequence.
DNA sequence 3' TAC GGG AGT CTT TCC ACT 5'
What would be the mRNA sequence?
What would be the amino acid sequence?
What would occur to the amino acid sequence if the following mutation (G --> C in bold below) were to take place?
DNA sequence 3' TAC GGG ACT CTT TCC ACT 5'
What type of mutation is this?
Explanation:
TAC GGG AGT CTT TCC ACT -DNA
AUG CCC UCA GAA AGG UGA -mRNA
Met Pro Ser Glu Arg Stop -Amino acid sequence
Can't see the bold :/
Insertion mutation I believe.
A codon chart can be used to read the genetic code. To utilize this chart, start by finding the first codon nucleotide, then the second, and finally the third. The chart will then show which codon codes for the amino acid. Because the genetic code is degenerate, there are several codons for each amino acid.
What role of genetic code in DNA sequence?The genetic code serves as the body's language for converting the DNA instructions from our genes into the constituent parts of life. It is typically discussed using the “codons” found in mRNA since mRNA is the messenger that transmits information from the DNA to the site of protein production.
Therefore, TAC GGG AGT CTT TCC ACT -DNA
AUG CCC UCA GAA AGG UGA -mRNA
Met Pro Ser Glu Arg Stop -Amino acid sequence
Insertion mutation.
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Blowing into a flute can produce a sound because_______.
A. light energy is transformed into sound energy
B. the flute warms the air
C. air expands in the flute
D. air in the flute vibrates
Answer:
D
Explanation:
When you blow in a flute the holes cause vibrations which make sound which make music.
Special plant ____ called auxins control tropism responses.
A. Cells
B. Chemicals
Answer:
Chemicals
Explanation:
Answer:
B. Chemicals
Explanation:
ANSWER FASTTT PLEASEE!! Which of the following correctly identifies the two processes in the diagram?
A. Process 1 is meiosis, and Process 2 is mitosis.
B. Process 1 is mitosis, and Process 2 is meiosis.
C. Process 1 and 2 are both mitosis.
D. Process 1 and 2 are both meiosis.
Answer:
B. process 1 is mitosis and process 2 is meiosis
How is the sense of touch different from the other senses?
Answer:
Touch is, in several ways, seemingly different from these other senses, however. For one thing, touch does not seem to have a single sense organ. ... Instead, the skin contains many different sensory systems. Many of them, like those that code for pain and itch, do not seem to be tied directly to the sense of touch.
Explanation:
Touch is often classified as one of the traditional five senses, along with sight, hearing, smell, and taste. Touch is, in several ways, seemingly different from these other senses, however. For one thing, touch does not seem to have a single sense organ. ... Instead, the skin contains many different sensory system
HELP ! BIOLOGY! sorry my screen is hard to read but i need help with these two questions please !
Answer:
2) B
3) D
I believe that these are the answers, I hope this helps!
12. In what ways can people increase energy efficiency overall?
Answer:
https://www.bdc.ca/en/articles-tools/business-strategy-planning/manage-business/how-aim-net-zero-energy-efficiency
Explanation:
look at that it tell ya everythin
How do the process of photosynthesis and cellular respiration
follow the Law of Conservation of Energy?
Answer:
Cellular respiration uses oxygen and has it's waste product of carbon dioxide (CO2). How does photosynthesis demonstrate the law of conservation? The AMOUNT of oxygen and carbon atoms released by photosynthesis are EXACTLY EQUAL to the atoms of these material contained in carbon-dioxide converted.
Explanation:
