what are the changes seen in boys at the time of puberty? ​

Answers

Answer 1

Answer:

Hair growth on chest, legs, genital area, under armpits & on arms.Broader chest & shouldersGrowth in heightHair on faceOily skin which results in pimples.
Answer 2
1.enlargement of the scrotum and testes and then the penis
2.the first growth of public hair becomes long and soft.
3.they start to sweat more
4.the voice becoming deeper in tone
5.some boy may experience acne
6.hair on face and body
7. bodies increase in size
this can last about 2 to 5 years and normally starts between the ages of 10 and 16!!!

Related Questions

Explain why the side shoots grow when the terminal buds are removed.​

Answers

The answer you want is here: (It was answered before)

https://brainly.in/question/2396976

Cystic Fibrosis is an autosomal recessive disorder. Neither parent has the disease Their first child (Joey) Has cystic fibrosis. What is the genotype of Joey? Use th letter A for the alleles for cystic fibrosis.​

Answers

I answered it in the other questions spot

Why are food webs more realistic than food chains?
There are more animals
Most organisms eat more than one thing
Most organisms eat each other
Most organisms live on their own

Answers

Answer:

The correct answer is -most organisms eat more than one thing.

Explanation:

Food chains are the linear representation of easier visualization of trophic levels or movement of energy through the ecosystem. However, in reality, consumers can depend on more than one producer or other consumers for their food, and energy and interaction among these organisms are not that simple as it shows in the food chain. This makes the food webs to be more realistic than simple food chains.

The food web gives a better idea of the complexity of the various components and movement of energy in an ecosystem because the food webs is are the representation of interaction and interrelation of many different consumers and producers in an ecosystem.

based on the reading above describe two diff between mysteceti and odonticeti whales one diff should be in anatomy and the other in feeding behavior. plz help me guys give a short answer​

Answers

Answer:

both are different in feeding behaviour and blowholes.

Explanation:

The main difference between Mysteceti and odonticeti whales is the presence of feeding behaviour. Mysteceti whales also known as baleen whales which have baleen plates that capture prey from sea water while on the other hand, odonticeti whales have teeth which helps these whales to hunt aquatic animals. Baleen whales have baleen plates, or sheets, which sieve prey or food from seawater whereas toothed whales have teeth which helps them to actively hunt fish, squid and other sea creatures. The number of blowholes also different in both whales, Odontoceti whale has only 1 blowhole, but the Mysticeti has two blowholes in its body.

How do the trachea, bronchi, bronchioles, and alveoli work together to process the oxygen that you inhale?

Answers

Answer:

The bronchial tubes divide into smaller air passages called bronchi, and then into bronchioles. The bronchioles end in tiny air sacs called alveoli, where oxygen is transferred from the inhaled air to the blood. After absorbing oxygen, the blood leaves the lungs and is carried to the heart.

Explanation:

What leads to the likelihood that that there are successful traits in an ecosystem that will allow organisms to survive and reproduce in changing conditions?
A. less biodiversity
B.smaller food webs
C.greater biodiversity
D.specialist consumers

Answers

Answer:

C. greater biodiversity

Explanation:

Biodiversity refers to the variation in the kind of species in an area/ecosystem. In other words, biodiversity or biological diversity is how life differs from one another. An increase in biodiversity is of great ecological importance.

One of this importance is that; it leads to the likelihood that that there are successful traits in an ecosystem that will allow organisms to survive and reproduce in changing conditions. This means, in a nutshell, that it increases the survival chance of species in adverse conditions via the possession of variant traits or characteristics.

Population of town X has 5000 inhabitants and is under Hardy-Weinberg equilibrium for
distribution of ABO blood group system alleles A, B, and O. it is know that frequency of allele
A is two times higher than frequency of allele B, and also there are 2450 inhabitants with
Blood group 0. how many people have AB blood group in town X?
A) 50
B) 100
C)200
D) 2550​

Answers

Answer:

200

I HOPE IT'S HELP

☆☆☆☆☆

A deer lives in a forest. It feeds on plants and drinks from a lake. What is the name for the forest that the deer lives in

Answers

Hind forests and stag forests are so called because of the tendencies of red deer to form large, single-sex herds outside the autumn rutting time, and most forests hold either a resident stag herd or a hind herd for much of the year.

Which of the following best describes these
biomolecules?
Molecule X and
Molecule Y are both
nucleic acids,
Molecule X is a
carbohydrate, and
Molecule Y is a
nucleic acid,
Molecule X is a
nucleic acid, and
Molecule Y is a
carbohydrate,
Molecule X and
Molecule Y are both
carbohydrates,

Answers

Answer:B

Explanation:

Because i know it

From the attached diagram, the biomolecules are best described as follows:

Molecule X is a carbohydrate, andMolecule Y is a nucleic acid.

Carbohydrates :They are biomolecules that are  made up of carbon, hydrogen, and oxygen.There are different types of carbohydrates. Some are sugars, starch and cellulose.The most common simple sugars are the hexose. This comprises of six-carbon sugars as illustrated in the diagram in molecule X.Their chemical formula is C₆H₁₂O₆.

   2.  Nucleic acid:

They are found in all living cells.They are composed of strands made up of repeating units called nucleotides. this is clearly shown in the attached diagram in  molecule YEach nucleotide consists of five-carbon sugar, phosphate group and an organic nitrogen-cotaining base: adenine (A), guanine (G), cytosine (C) or thymine (T).

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If both the biceps and triceps muscle contract at the same time, what happens?

Answers

Answer:

when one muscle is contracted, the other muscle from the pair is always elongated. for example, the biceps and tricep muscles work together to allow you to bend and straighten your elbow. when you want to bend your elbow, your bicep muscle contracts. and at the same time tricep muscles relaxes.

Explanation:

Hope this helped Mark BRAINLIEST!!

2 points
11. If the decomposers were removed from an ecosystem, what would
most likely occur?
Energy from the sun would not be absorbed by plants
Carnivores would have no source of energy
Essential elements would not be available to plants
Herbivores would lose their source of energy and nutrients

Answers

Answer:

If decomposers are removed from ecosystem,there would be no organic nutrients and all the dead plants would destroy the animals habitat. The ecosystem will be fill by plants and animal wastes as there will be no decomposition of waste material.

If the decomposers were removed from an ecosystem then essential elements would not be available to plants. The correct option is C.

What are decomposers?

Decomposers eat dead things like leaf litter and wood, as well as animal carcasses and feces.

As Earth's cleanup crew, they provide a valuable service. Dead leaves, insects, and animals would pile up everywhere if decomposers did not exist.

They play a critical role in decomposing complex compounds (dead organisms) into simple components.

Scavengers and decomposers break down dead plants and animals. They also decompose other waste of organism.

Decomposers are critical components of any ecosystem. Plants would not receive essential nutrients if they were not present in the ecosystem, and dead matter and waste would accumulate.

Thus, the correct option is C.

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Read the following summary, which describes blood flow and heart output in space. Then, answer the question.

The heart doesn't have to do as much work to pump blood when in orbit. After only one day beyond Earth's gravity, astronauts have a lower blood volume. They can lose as much as 20 percent of their blood volume while on a space mission. Since the body has less blood to push around and the heart is pushing more blood with each beat, an astronaut's heart rate also slows down to compensate.

What process is being described?

Breathing
Excretion
Homeostasis
Respiration

Answers

Explanation:

respiration because it's about blood circulation

Answer:

its respiration

Explanation:

im doing the same test

In the graph, “ppm” stands for parts per million. A concentration of one ppm is a ratio of one part to one million parts. Concentrations can also be expressed as a percentage. Why do you believe scientists choose ppm over percentage in some cases?

Answers

Answer: very small amounts are easier to express as ppm.

Explanation: 1 ppm = 0.0001 %

Answer:

Concentrations like the ones shown in the graph are relatively small. Writing them as percentages would require decimal points and many leading zeros. Therefore, scientists choose ppm over percentages to show CO2 concentrations.

Explanation:

This is the exact answer from PLATO so maybe change the wording a little.

What is an example of an animal maintaining homeostasis?
A) sweating
B) eating food to raise blood sugar
C) drinking water during dehydrated
D) All of the above

Answers

Answer:

D) All of the above

Answer:

D. all of the above

because all of those options are maintaining the basic living needs so to speak which is what homeostasis is

Explanation:

brainliest pls

Which statements about wind are true? Check all that apply.

Answers

where are the statements bro?

(8.9B) A student made a chart to classify plates by the types of boundaries. What crustal
feature is most likely found between the South American and African plates? *

A Folded mountain
B Ocean trench
C Mid-ocean ridge
D Fault

Answers

Answer:

folded mountain

hope it will help you

The crustal feature is most likely found between the South American and African plates is folded mountain. The correct option is A.

What is folded mountain?

When two or more of the tectonic plates of Earth are forced together, fold mountains are formed.

Rocks and debris are bent and folded into rocky outcrops, hills, mountains, and entire mountain ranges at these interacting, compressing limits. Orogeny, a process, is what produces fold mountains.

While having a narrower width than their length, fold mountains are very long.

Concave and convex slopes are typically present on opposite sides of fold mountains. Most fold mountains are located on the edges of continents that face the ocean.

A student created a chart to categorize plates according to the different boundary types. The folded mountain is most likely the crustal feature that lies between the South American and African plates.

Thus, the correct option is A.

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As the territory of Africanized bees continues to expand, what is the most likely outcome?

Answers

Answer:

Competition among nectar- and pollen-feeding invertebrate pollinators and resource partitioning are affected by introduced Africanized Honey Bees. When Africanized Honey Bees compete with other species of honey bees for flowers, the Africanized bees may displace the other bees from the food sources.

Grass it is a _______.

Answers

Grass it is a plant? I dont know why there is a it is

What are the 3 main ways to creating more sustainable energy paths?

Answers

Answer:

Sustainable energy requires a balanced composition between energy security, economic development, and environmental protection [5]. It encompasses energy systems, which are based on three core dimensions: energy security, social equity, and environmental impact mitigation

Explanation:


Using the Karyotype above is this individual a male or female?

male
Female
Impossible to tell

Answers

Answer:

the individual is a female.

Explanation:

The only thing that indicates the male, is the presence of the Y chromosome, since it's absent, we are looking at a female karyotype.

Which of the following is NOT an example of how biotic factors interact with abiotic factors in
an ecosystem?
A Alion preys on a herd of gazelle.
B Plants remove carbon dioxide from the air and add oxygen.
C Animals cause erosion by digging in the dirt.
D A lizard raises its body temperature by using heat from the Sun.

Answers

Answer:

A

Explanation:

Both lions and gazelles are biotic

Which of the following best describes evidence from comparative embryology regarding embryos of different species that supports the theory of evolution?

They carry out similar metabolic processes.
They develop in similar environments.
They have the same genome.
They share similar development patterns.

Answers

Answer: D.

Explanation: Thus, Comparative Embryology provides strong support for the hypothesis that Darwin put forth to explain the apparent similarities and differences he saw among different species, i.e. that these species are the result of an evolutionary process involving selection (now known to be gene based) for structural and In the mid-1800s, Charles Darwin and Alfred Wallace independently concluded that inherited variations in traits, such as a bird's beak shape, may provide better odds of survival in a given niche. Organisms without the advantageous variation are less likely to survive and pass on their genes.

Answer:

they share similar development patterns

Explanation:

(HELP ME PLEASE!!)

Which trait would be passed on from a parent to its offspring because of natural selection?

A)one leg that is shorter than the other

B)lighter fur from repeated sun exposure

C)longer legs that avoid predators

D)bulky muscles from working out

Answers

Answer:

I think the answer will be C longer legs that avoid predators

Explanation:

This is because the long legs are natural

Answer:

C)longer legs that avoid predators

Explanation:

As, these traits of having long legs is for avoiding the predators and is the natural for them so it would pass from a parent to its offspring for its protection which is the natural selection.

Puzzle 8
5 Hibiscus flowers
begin the clue.
Now do you know
what to do?

Answers

Answer:

The first answer  is 1

The second answer is

Explanation:

From the attached image, we are giving a clue that there are 5 Hibiscus flowers.

So, each symbol of the Hibiscus flower is 5.

1st row: Hibiscus + Tree = 14

⇒ 5 + Tree = 14

∴ Tree = 14 - 5 = 9

This means that the tree represents 9

2nd row: Sunflower + Hibiscus = 13

⇒ Sunflower + 5 = 13

∴ Sunflower = 13- 5 = 8. This means that the sunflower represents 8.

3rd row: Tree - sunflower = 9-8 = 1

4th row: Sunflower + tree = 9+8 = 13

Last row: Hibiscus(5) × Sunflower(8) ≠ Tree (9)

bilang
me.
.
a
responses
ACTIVITY: Making Connections
Complete the Venn Diagram. In the outer circles, write the difference between negative and
positive feedback and the similanties where the circles overlap. Use the sentences belo
a control system that sends signal to increase
response
Pastick
control system that helps the body man
homeostasis by sending a signal to sto por
Less common but occur in soecifications
Feedback
Occur more often in the body, helping maintaining
various conditions of the body
Benefits the body
Helps to sustain homeostasis
A feedback mechanism resulting in the growth of me
output signal
A feedback mechanism resulting in the slowing down
process
Blood clotting
for the OR
Blood pressure
Code
.​

Answers

Answer:

wget2beyshegsisnatnehdhdbrgebr


Which molecular substance is found on the surface of pathogens that can be detected by leukocytes to launch an immune response?

Answers

I’m pretty sure the answer is Antigens

What is the connection between plants and photosynthesis?

Answers

Photosynthesis makes color for the leaves and plants.

Answer:

plants use photosynthesis to synthesize glucose (their form of energy) with their chloroplasts

Explanation:

What Would Happen to the Carrying Capacity?

What Would Happen to the Carrying Capacity of the Ecosystem, and Why?

A volcano covers an area with 2 feet of lava.

Heavy rains cause a mudslide that destroys the plant life in a mountainous area.

A hurricane destroys the bayou where sawgrass grows, which many insects eat.

A company buys an area of forest and decides to cut down the trees and bushes to build a new neighborhood.

PLZZ HELP THIS IS DUE SOON​

Answers

Answer:

In all of these the carrying capacity would go down substantially

Explanation:

This is because these natural disasters are very detrimental to the environments and would decrease life.

In all the below conditions the carrying capacity would go down substantially.

What is ecosystem?

An ecosystem have each and every organism and the relation between physical environment by which they interact. The function of ecosystem is to satisfy the need of humans by supplying them services and goods from nature.Ecosystem is the system in which both living as well as nonliving organisms are present in a particular location.

There are various types of ecosystem such as Grassland ecosystem, Tundra ecosystem, Desert ecosystem, Forest ecosystem. Biodiversity is all the different kinds of life living in a particular area like the variety of animals, plants, fungi and microorganisms like bacteria and virus that plays a major role in framing of natural world usually three levels of biodiversity are observed and these are genetic species, and ecosystem diversity.

Therefore, In all the below conditions the carrying capacity would go down substantially.

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Helpppppppppppp pleaseeeeeeww

Answers

Answer:

F

Explanation:

Vesicles deliver protein to the golgi apparatus to be synthesized.

A producer is an organism that

A. eats other organisms


B. makes it own food

Answers

Answer:

B makes it own food

Explanation:

have a great day

Answer:

B. makes it own food

Explanation:

A producer is an organism that makes it own food

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This copy, known as the mRNA, travels from the cell nucleus tothe cytoplasm. There, it directs the synthesis of the protein. The base code in the mRNA controls the order of the amino acids in the protein.There are 20 amino acids used to make proteins and different codes for each acid. The tRNA reads the code. Then it brings a specific amino acid toattach to the growing chain of amino acids. Each tRNA carries only one type of amino acid. It only recognizes one specific code. tRNA is releasedfrom the amino acid until it comes to a stop code. Then the protein is set free from the ribosome. How do native plants respond after a degraded marsh has been restored to a healthy marsh? help I literally got a 4/10 in my math test and my mom is like REALLLLY mad that she took my phone so Im using my sisters ipad and she gave me advice on this app so i dont even know if this could help but this is the page I need to complete/its for term 2 (week2) basically on my test well its apart of it so pls help- ~btw dont look at the top cause I already completed it, I just need the 2 and 3 helppppp ima die ANDDD I used all the points I think thats what its called~ State one type of weathering that affects coastal landscapes. PLS HELP TIMEDWhich expressions are equivalent to 4(9+3)? a4(12) b36 + 3 c36 + 12 d4 + (9 + 3) e(9 + 3) + (9 + 3) + (9 + 3) + (9 + 3) Finn listed two of the three steps involved in gene therapy. 1. The normal allele is removed from the chromosome. 2. The normal allele is added to the cells of a person with the disorder. Which step should he also include, and where? 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To prepare for upcoming race,he plans to run 217 miles total over the next 31 days.