what is biology?
a.science b.social​

Answers

Answer 1

Answer A Science

Explanation: Biology is one of the three main sciences that students study. It is the science of life.


Related Questions

Which of the following changes takes place during the third trimester of a womans pregnancy

A.) the fetus begins to form teeth
B.) the fetus develops toenails,lips, and eyelashes
C.)The mothers uterine contractions begin
D.) the fetus’s hands and feet appear

Answers

Answer:D

Explanation:

The fetus develops toenails, lips, and eyelashes is the change that takes place during the third trimester of a woman's pregnancy.  Therefore, option (B) is correct.

What happens in third trimester?

By the third trimester, which begins around the 28th week of pregnancy and lasts until birth, the fetus has already formed most of its organs and body parts. During this stage of pregnancy, the fetus undergoes significant growth and development. This includes the development of toenails, lips, and eyelashes. Additionally, the fetus begins to accumulate body fat, and its brain undergoes rapid development.

To answer the other options, the formation of teeth begins during the embryonic stage, which occurs in the first trimester. The mother's uterine contractions typically do not begin until labor, which occurs at the end of the third trimester or later. The fetus's hands and feet appear during the embryonic stage, specifically around the 6th week of pregnancy.

Learn more about pregnancy, here:

https://brainly.com/question/28547022

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Approximately time passes between B and F

Answers

Answer:

14 days

Explanation:

It takes 27 days for the moon to make a full rotation around the earth. Because half the of the rotation around the earth has been made, half 27. Half of 27 is 13.5, so the time between B and F is approximately 14 days.

How does the tRNA-mRNA interaction ensure that the amino acids are added in the correct order?

Answers

Answer:

Only the tRNA carrying the next amino acid in the polypeptide chain has the anticodon that binds to the appropriate location on the mRNA.

This system ensures that amino acids are added to the chain in the correct order. At the beginning of translation, the ribosome and a tRNA attach to the mRNA.

hope it helps!

Through the process of nitrogen fixation, legumes such as beans or peas have colonies of nitrogen-fixing bacteria attached to their roots. The plants gain nitrates from the bacteria, and the bacteria gain sugars from the plant. Which type of symbiotic relationship occurs between legumes and nitrogen-fixing bacteria?
Commensalism
Mutualism
Parasitism
Predation

Answers

Mutualism is the answer

Is the thermos considered a conductor or insulator?

Answers

Answer:

no

Explanation:

Insulator is the answer

Question 5. Brainliest involved

Answers

Answer:

id say 50 50

Explanation:

Answer:50%

Explanation:

The following passage explains the relationship between tectonic plates and earthquakes. Which sentence states incorrect information?


Tectonic plates can push together, pull apart, or slide past each other at their boundaries. The edges of tectonic plates are not smooth, so they create friction as they move. When friction is too great for the plates to move, they can become stuck and pressure can build up. An earthquake occurs when pressure that has built up between plates suddenly is released. The buildup of pressure that leads to earthquakes only occurs at plate boundaries.​

Answers

Answer:

earthquakes occur when the edges suddenly become unstuck and slip along a fault

Explanation:

Why are enzymes important for chemical
reactions?

Answers

Answer:

Enzymes greatly increase the reaction rate, or catalyze them.

Explanation:

Without them, many of us would not be alive, because the reactions wouldn't be fast enough!

Write a hypothesis showing the effect of nutrients in the soil on the growth rate of the tomato plant

Answers

Hypothesis:

As the tomato plant grows, nitrogen levels in the soil will decrease

A hypothesis showing the effect of nutrients in the soil on the growth rate of the tomato plant is As the tomato plant grows, nitrogen levels in the soil will decrease.

What is soil ?

The  soil is  a mixture of different components which comprises  minerals, organic matter, and living organisms, it is a loose sediment,  Moreover, there are different types of soil like Clay Soil, Sandy soil, Loamy Soil, Silt Soil

soil  it is One of the most crucial components of the biosphere, this particle is composed of 45% minerals, 50% spaces  and 5% organic matter, the soil involve in  many important functions such as Providing a growth medium for the plants, Acts a modifier of the earth’s atmosphere

The formation of soil involve in different process , it can be formed   by weathering of rocks and the weathering of Solid rock  occur in three way like Mechanical Weathering, Chemical Weathering, Biological Weathering

For more details regarding soil, visit

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List all the GENE mutations here.
1. ___________________

2. ___________________

3. ___________________

4. ___________________

5. ___________________

6. ___________________

Answers

base substitutions
deletions
insertions
duplication
missense
repeat expansion

What is an example of a learned behavioral adaptation?
O camouflage
O hunting
O hibernation
O migration

Answers

Answer:

Hunting

Explanation:

Camouflage is a hereditary physical aspect, whereas hibernation and migration are instinctual. Hunting is a learned behavior as it is not as ingrained as the other two and is not automatically done.

P.S. at first I read the answer choices to the tune of "O, christmas tree"

The diagram below represents the circulation of air above Earth's surface at a coastal location during the day and at night.
This local air movement is best described as an example of
1.
conduction between Earth's surface and the atmosphere above it
2.
condensation of water vapor during the day, and evaporation of water during the night
3.
convection resulting from temperature and pressure differences above land and water
4.
greater radiation from the warmer ocean during the day and from the warmer land at night
Submit Answer

Answers

Answer:

3. convection resulting from temperature and pressure differences above land and water

Explanation:

Due to the the difference between the ability of land and to water to absorb and radiate heat energy, the land gets heated up by the sun more quickly than water during the hot afternoons. As a result, the air above the land surface gets heated up more quickly than that above water. Warm air being less dense than cold air will rise above to atmosphere creating a low pressure area on land. On the other hand, air above water is not heated up as quickly, thus the dense cooler air over water will rush in and replace the warm air that has risen above the land surface.

At night, the land cools off more easily than water, hence the air above the land surface is cooler. On the other, water does not lose heat as quickly as the land, hence the air above the water surface is warmer than that over land. Warm air over the water surface will rise above, while colder air from land will replace it.

There are 450 calories in 100 g of trail mix. If you burn 30 calories in 10 minutes of walking, how much trail mix should you eat to replenish the energy you spend walking for 2 hours?

Answers

Answer:

to replenish the energy spent walking for 2 hours, 80g of trail mix should be eaten

Explanation:

Firstly, let us calculate the number of calories burnt in 2 hours

in 10 minutes; 30 calories are burnt

∴ in 1 minute 30/10  calories are burnt = 3 calories are burnt

2 hours = 120 minute

∴ in 120 minutes 3 × 120 = 360 calories are burnt.

Next, let us calculate the amount of trail mix that contains 360 calories

100g of trail mix = 450 calories

450 calories = 100 g

1 calory = 100/450

∴ 360 calories = 360 × (100/450)

=  360 × 0.222 = 80g

∴ to replenish the energy spent walking for 2 hours, 80g of trail mix should be eaten

Sunny makes a poster showing the levels of organization in the human body.


How can Sunny correct his error? Check all that apply.


Arrow A should point to the organ system.

Arrow B should point to the cell.

Arrow B should point to the organ.

Arrow C should point to the muscle tissue.

Arrow C should point to the organ system.

Answers

Answer:

Arrow B should point to the muscle tissue, Arrow C should point to the organ system.

These are the correct answers, have a nice day! :)

Answer:Arrow B should point to the organ.

Arrow C should point to the organ system.

Explanation: i just did it

T-lymphocytes are created in the bone marrow and then developed in the

spleen.

adenoids.

thymus.

tonsils.

Answers

Answer: I would say it is in thymus.

Answer:

It is thymus, I just did the question and got it right.

High levels and long periods of stress can increase a person's risk for many diseases
True
False​

Answers

Answer:

This is true many people can get many diseases from stress.

Answer:

True, go on this for your assessment  I commented on ur other post too, https://quizlet.com/341036936/chapter-11-lesson-3-flash-cards/

Explanation:

Which one is the true answer

Answers

Answer:
B
Explaination:

Which of the following is NOT an example of a physical change?

Answers

Answer:

Solution : Combustion of Liquefied Petroleum Gas (LPG) is a chemical change. Because it is an irreversible reaction and new products, carbon dioxide and water vapour are formed and lot of heat is also produced during the reaction.

What is the name of the protective sac in which the heart is enclosed?

Answers

Answer:

A fibrous sac called the pericardium surrounds the heart. The sac has two thin layers with fluid between them.

Explanation:

tell me if i am wrong :)

Answer:

the pericardium

Explanation:

YOUR WELCOME!!!

When a blood clot breaks free and blocks a vessel leading to the brain a _______________________ can happen.

Answers

Answer:

a stroke can happen

Explanation:

A stroke can happen, right?

Select the conditions caused by fungi.


rust

yellow mosaic

barley yellow dwarf

blight

Stewart’s wilt

holcus spot

stalk rot

Answers

The answers are the following:
-Rust
- yellow mosaic
- blight
-Stalk rot

—Evidence—
•] Rusts are plant diseases caused by pathogenic fungi of the order Pucciniales.

•] Wheat yellow mosaic (usually called wheat spindle streak mosaic) is caused by a soilborne virus which also is transmitted by the soilborne fungus, Polymyxa graminis.

•] Blight spreads by fungal spores that are carried by insects, wind, water and animals from infected plants, and then deposited on soil. The disease requires moisture to progress, so when dew or rain comes in contact with fungal spores in the soil, they reproduce.

•] Fusarium stalk rot, primarily caused by the fungus Fusarium verticilliodes, is a common disease in the Midwest. This fungus also causes Fusarium ear rot and can infect roots, stalks, and leaf nodes. It is most common in hot, dry years.

If the DNA sequence is GCTCAATTCGACCTA, the complementary RNA
sequence created during transcription is

Answers

Answer:

CGAGTTAAGCTGGAT

Explanation:

thymine pairs with adenine and guanine pairs with cytosine

T-A

G-C

Can someone help me with his please?

Answers

4N to the left
5N to the left
0N
9N to the right

A. Red tailed hawks
B. White spruces
C. Red foxes
D. Lynx

Answers

Answer:

Red foxes

Explanation:

The arrow shows the transfer of energy from the shrew to the red fox

A
B
C
D
Need help PLEASEE

Answers

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

Ur answer is D.

Thanks,

Research any harmful bacteria and write a short paragraph about it that includes:

* What sickness it causes
* The symptoms that infected patients develop
* How this disease is spread

Make sure you pick a bacteria, not a virus!

please help

i will brainliest and 5 * and 20 points for the best answer

i don't want to see any link as a an answer

if i do you will be reported

Answers

Answer:

Noroviruses are a group of viruses that cause gastroenteritis in people. Gastroenteritis is an inflammation of the lining of the stomach and intestines, causing an acute onset of severe vomiting and diarrhea. Norovirus illness is usually brief in people who are otherwise healthy. an RNA virus of the family Caliciviridae, is a human enteric pathogen that causes substantial morbidity across both health care and community settings, causes vomiting and diarrhea. People of all ages can get infected and sick with norovirus. Norovirus spreads easily! You can get norovirus by accidentally getting tiny particles of feces (poop) or vomit from an infected person in your mouth.

Explanation:

It's a bacteria it's says virus but it's a bacteria

Why are dead or weakened viruses used instead of normal viruses to create a vaccine?

Answers

I think its because vaccines are just to help your body learn how to fight off the virus, it’s not to actually give you the virus. Hope this helped!

because dead viruses aren't as effective as dead than "alive"

Which one is a producer ? Please HURRY

Answers

Answer:

Grass

Explanation:

Grass produce their own food

What's does the term origin time mean in earth science

Answers

Answer:

Well depending on context it can mean different things, I could mean one of these three thing, choose the one you think is the most suitable,

(1) The birth, existence, or beginning; starting point. (2) The cause; that which causes something to arise. (3) That which acts as the source or that which from where something is derived.

Each of your cells has a set of chromosomes, including
autosomes and sex chromosomes. Explain the main
differences between these two types of chromosomes.

Answers

Answer:

in the 46 chromosomes in our body, the autosomes are the first 22 homologous pairs of chromosomes that do not influence the sex of an individual, while sex chromosomes are the 23rd pair of chromosomes that determine the sex of an individual

hope this helps, good luck! : )

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