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

plans to stop deforestation?

Answers

Answer:

Start planting trees

Explanation:

That's the sum of the domestic campaign so far.Soon all the neighbors will be carbon copying each other.

Answer:

Deforestation can be averted by various countermeasures. First of all, we should afforestation which is growing of trees in the forest. This would help to resolve the loss of the trees cut down. Moreover, the use of plant-based products should increase.

Explanation:

Some examples:

Begin by hugging a tree. ...

Start planting trees. ...

Stop printing and go paperless. ...

Recycle paper and cardboard. ...

When shopping, move towards buying recycled products mainly. ...

When at home, recycle as much as possible.

Hope this helps     :)

diseases caused by deficiency of iodine and vitamin c​

Answers

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iodine deficiency is the most common cause of thyroid enlargement and goiter (see goiter brochure). Within a goiter, nodules can develop. Patients with a large goiter may experience symptoms of choking, especially when lying down, and difficulty swallowing and breathing.

A severe lack of vitamin C can lead to scurvy.

Thanks hope it helps.

Write at least 3 sentences explaining why plants are so important to humans. *

Answers

Answer:

Please mark brainliest :)

Explanation:

Plants provide oxygen for humans through photosynthesis. They can store carbon which is a greenhouse gas. Plants are a staple in humans' diets. Bonus: They are a source of income for farmers. They hold important vitamins. They can be beneficial to healthy soil and keep it from blowing away or eroding.

Hope this helped :)

non-cancerous tumors are called what

Answers

Answer:

Benign Tumors

Explanation:

Which contains alleles A and B in the same genotype what is this phenomenon called

Answers

Answer:

Codominance, in genetics, phenomenon in which two alleles (different versions of the same gene) are expressed to an equal degree within an organism. As a result, traits associated with each allele are displayed simultaneously. An example of codominance is seen in the MN blood group system of humans.

Explanation:

The air in a scuba tank is composed of approximately 78% nitrogen, 21% oxygen, with the remainder being a mix of argon, carbon dioxide, neon, helium and others.

Answers

Answer:

Complete question found online is:

The air in a scuba tank is composed of approximately 78% nitrogen, 21% oxygen, with the remainder being a mix of argon, carbon dioxide, neon, helium and others.

What is the solvent?  

What are the three solutes?

Explanation:

1. Nitrogen in air is a solvent as it is the highest in quantity and other gases are minorities.

2. Oxygen, carbon dioxide and argon, neon helium etc are solute in air mixture.

need help with genotypes

Answers

Answer:

Homo, Hetero, Homo, Hetero, Homo, Homo, Hetero, Homo, Hetero, Homo, Homo, Homo

The four differing nucleotide parts, called bases, are made of a few:Immersive Reader


A. Carbon and oxygen atoms

B. Hydrogen atoms

C. Nitrogen and phosphorus atoms

D. All of the above

Answers

i guess D
not 100% sure

The four differing nucleotide parts, called bases which are made of Carbon and oxygen atoms, Hydrogen atoms and Nitrogen and phosphorus atoms. So, the correct option is D.

What is Nucleotide?

Nucleotides are defined as organic molecules composed of a nitrogenous base, a pentose sugar and a phosphate, which serve as the monomeric units of nucleic acid polymers such as deoxyribonucleic acid and ribonucleic acid, which are essential for all life-forms. There are essential biomolecules inside the Earth.

The sugar and phosphate groups which form the backbone of the DNA double helix, while the bases are located in the middle, a chemical bond between the phosphate group of one nucleotide and the sugar backbone of a neighboring nucleotide hold it together.

Therefore, the correct option is D.

Learn more about Nucleotide, here:

https://brainly.com/question/15592325

#SPJ6

Lymph is another medium of circulation in the human body. justify

Answers

Answer:

Yes, Lymph is another medium of circulation in the human body

Explanation:

Yes, Lymph is another medium of circulation in the human body. Lymph is part of lymphatic system which in turn is part of the circulatory system. The lymphatic circulatory system comprises of lymphatic vessels which carry clear fluid "lymph" towards the heart. The flow however is unidirectional

An item that reflects only blue light?

Answers

Answer:

The sun

Explanation:

That's how the sky is blue.

please help thanks!!!!

Answers

Answer:

I believe that the smallest is Nucleotide, bases, genes, DNA, Chromsomes.

Explanation:

please help ASAP
How can ecosystems benefit from wildfires?

Answers

Answer:

Fires often remove alien plants that compete with native species for nutrients and space, and remove undergrowth, which allows sunlight to reach the forest floor, thereby supporting the growth of native species

Wildfires could eliminate invasive species from the ecosystem. This ultimately reduces competition between organisms. Besides that, though, they’re pretty harmful and lead to higher atmospheric CO2 levels.

Please help
A plant shows incomplete dominance in size. A tall plant (TT) is crossed with a medium plant (Tt).

What percentage of the plants will be tall?

Answers

Answer:

100% of the plants will be tall

Explanation:

The dominate trait is present in every box

Which of the following would not be found in blood serum?

Antibodies
Platelets
Nutrients
Wastes


waste is not the awnser

Answers

Answer:

Antibodies

Explanation:

Answer:

platelets

Explanation:

Serum does not contain white blood cells (leukocytes), red blood cells (erythrocytes), platelets, or clotting factors. The study of serum is serology.

hope it helpsss

:)))))))))

4. Analyze: Compare the offspring traits to the parent traits.

A. Which traits were passed from parents to offspring? __________________________

B. Which traits were not passed down? ______________________________________

Traits that are not passed down (not inherited) are called acquired traits.

Answers

Answer: 4a. The transmission of characteristics from parents to offspring is called heredity, and the characteristics that are inherited can be predicted. 4b. An acquired characteristic is a non-heritable change in a function or structure of a living organism caused after birth by disease, injury, accident, deliberate modification, variation, repeated use, disuse, misuse, or other environmental influence. Acquired traits are synonymous with acquired characteristics.

Explanation:

Mitosis ans meiosis are both ways in which cells___?

Answers

Answer:

Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells. Below we highlight the keys differences and similarities between the two types of cell division.

Explanation:

Mitosis reproduce asexually whereas meiosis reproduces sexually.

match the eukaryotic kingdom with the approrite description
help meeeeeeeee

Answers

Answer:

Animal: C

Plants: D

Fungi: B

Protist: A

Explanation:

what would happen if the fish pond floods​

Answers

Answer:

actually no idea to be honest

Answer:

stup!dest and smartest question I have ever heard

Which of the following best describes the initial separation event in allopatric separation?
A. Geographic isolation
B. Isolated niche population
C. Partially isolated population
D. Genetic polymorphism​

Answers

Answer:

A. Geographic isolation

Explanation:

Allopatric speciation occurs when one population separates into two geographically isolated populations. The geographic isolation prevents gene transfer and reproduction, allowing for genetic divergence between the two populations.

Answer:

The  Answer is A

Explanation:

hope it helps

8. What is a description of transpiration?
A exchange of gases between the leaf and the atmosphere
Bloss of water vapour from the leaves and stems of a plant
С
movement of water from the roots to the leaves
D
movement of water through the cells of the leaf

Answers

Answer:

I think C

Explanation:

Yep it looks like it’s Letter C

I do not need any help, I have all the information I need. Please do not help me thank you.

Answers

Answer:

okay lol

Explanation:

Answer:

okay bro no I hope you have a good day

Why are stem cells important for the development of a multicellular organism? What do they allow the organism to do?

Answers

Answer:

Stem cells are primal cells found in all multi-cellular organisms. They retain the ability to renew themselves through mitotic cell division and can differentiate into a diverse range of specialized cell types.

Explanation:

In adult organisms, stem cells and progenitor cells act as a repair system for the body, replenishing specialized cells.

Dust particles are natural in the environment but when they combine with vehicle emission particles they form
a particulate matter
b. ultrafine particles
c. reactive chemicals
d. inactive chemicals
e. lead particles

Answers

Answer:

The Awnser is A particulate matter

Answer:

a particulate matter

Explanation:

edge

A _______________ genotype has one capital and one lowercase letter.

Answers

A heterozygous genotype has one capital and one lowercase letter.

A beach community was recently negatively affected by a hurricane. Community leaders are looking for a potential solution to prevent damage from future hurricanes. Below is a list of their concerns as well as how important each issue is to the community. Community Concerns Concern Level Wave action Low Beachfront development Low Nearshore aquaculture Low Health of nearby coral reef Moderate Roosting bird species High Storm surge threat High Which of the following solutions would best address the issues of greatest concern in the community? Construction of a seawall Construction of a seawall A Planting mangrove forests Planting mangrove forests B Construction of an offshore breakwater Construction of an offshore breakwater C Adding large sand dunes

Answers

Answer: B, planting mangrove forests

Explanation:

Healthy mangrove forests provide homes for roosting bird species, protect coastal communities from storm surges, and provide a nursery habitat for juvenile coral reef organisms.

A is incorrect because the construction of a seawall would prevent the threat of storm surge but would not provide a habitat for roosting bird species nor help the health of the coral reef.

C is incorrect because the construction of an offshore breakwater would prevent the threat of storm surge but would not provide a habitat for roosting bird species. Its construction would also likely damage the nearby coral reef.

D is incorrect because creating large sand dunes could initially protect from storm surges, but this can also cause erosion. Sand dunes would not provide habitat for roosting bird species nor would they help to protect the health of the coral reef.

2 points
6. Which trophic level would be best represented by a rabbit?
Decomposer
Detritivore
Primary Consumer
Primary Producer
Secondary Consumer

Answers

Primary consumer because a rabbit eats plants.

Frederic Griffith used the word transformation to describe the changes in bacteria that he observed. Which is the most useful definition of transformation?

Answers

Answer:

A permanent change in the genetic composition of an organism

Explanation:

The experiment carried out by Frederick Griffith shows that bacteria are capable of transferring genetic information by means of a process called transformation.

Four students provide their teacher with an explanation of why photosynthesis is considered a chemical change. Luke: Photosynthesis is considered a chemical change because the CO2 molecules disappear and the O2 molecules reappear. Jackie: I know that photosynthesis is a chemical change because all of the reactants undergo a state of matter change and are all present as a product. Tara: Through photosynthesis, the CO2 and water are changed into new substance, glucose, therefore it is considered a chemical change. Skyler: Photosynthesis is a chemical change because solar energy is required. Which student provides the best explanation of why photosynthesis is a chemical change

Answers

Answer:

The best explanation was provided by the student Tara who said: "Through photosynthesis, the CO2 and water are changed into new substance, glucose, therefore it is considered a chemical change".

Explanation:

A chemical change is one which is not easily reversible and which results in the formation of new subsatances.

For example, in photosynthesis,a new substance, glucose is formed from the original substansubstances, carbon dioxide and water. Also, the reverse process of the formation of carbon dioxide and water from glucose is not easily obtained in plants.

From explanations provided by the students :

Luke does not give any explanation of the process but only an observation

Jackie's explanation does not state the main reason why a chemical change differs from a physical one.

Tara, gives the best explanation as the reason why a change that occcured is a chemical change is clearly stated.

Skyler does not state the main reason why photosynthesismis a chemical change as well, because even physical changes like evaporation of water involves solar energy.

Question 9 of 10
What is immigration?
A. When animals are born in an ecosystem
B. When animals move into an ecosystem
C. When animals leave an ecosystem
O D. When animals die in an ecosystem
SUBMIT

Answers

B. When animals move into an ecosystem.

The word “immigration” means “the action of coming to live permanently in a foreign country”. Which means that an animal moving into an ecosystem is the correct answer

fax about blue eyes i don't mind two BRAINLES​

Answers

Answer:

People with blue eyes tend to have greater light sensitivity. Night vision is often better among people with blue eyes. A genetic mutation is responsible for blue eyes. People with blue eyes are more likely to have red eye in photos.

blue eyes are really pretty
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