I need the answer pls help its in scince

I Need The Answer Pls Help Its In Scince

Answers

Answer 1

Answer:

i think the answer is A but im not 100% sure

Answer 2

Answer:

It is D

Explanation:

we are able to perceive easily that Amazon is not producing that 20% of World’s Oxygen for why we can mention it as “lung of the world” but it's still a great source of 6% of Oxygen, home of 10% of species, benefactor of the environment in which we belong to.


Related Questions

which of the following observations led mandel to conclude that some traits were recessive?

Answers

Answer:

D

Explanation:

please help, im in a really bad place rn and nobody ever helps. im about to fail the grade :( A train travels at a speed of 47mph and travels a distance of 323 miles. How long did it take the train to complete its journey

Answers

speed = distance ÷ time

we need time

time = distance ÷ speed

time = 323 ÷ 47

time = 6.8 hrs or 6hrs and 48 minutes

▪️Chapter - The fundamental unit of life
▪️Quality answer needed
▪️No Copied answer ( This type of answer will be reported at spot)
✗No spam please..​​

Answers

Answer:

The difference between Prokaryotic cell and Eukaryotic cell are;

[tex]\begin{array}{lll}&\underline {\text {Prokaryotic}}& \underline {\text {Eukaryotic}}\\ \\ \text {Nuclear \ membrane \ and \ nucleus} & \text {No \ true \ nucleus \ or} & \text {Has \ a \ true \ nucleus} \\& \text {nuclear \ membrane} & \text {nucleoli \ and \ nuclear \ membrane}\\\\ \text {Membrane \ bound \ cell \ organelle} & \text {None &Present} \\\\ \text {Chromosome \ number \ and \ shape} & \text {One} & \text {Several, more \ than \ one} \end{array}[/tex]

Explanation:

Prokaryotic cells

The plasma membranes surround prokaryotic cells, however, within their cytoplasm, there are no organelles bound to the membrane and there is no nucleus in the prokaryotic cell which differentiates it from the eukaryotic cells

Eukaryotic cells

Eukaryotic cells also have plasma membranes, ribosomes and cytoplasm. Eukaryotic cells also have membrane-bound nucleus, membrane bound organelles, such as chloroplast, mitochondria, endoplasmic reticulum, and Golgi apparatus which together differentiates it from a prokaryotic cell

What results will the scientist most likely obtain when placing drops of the indicator on the leaves?

Answers

Answer:

The scientist will be most likely obtain when placing drops of the indicator on the leaves by resulting dark purple.

Explanation:

dark purple is the answer.

Considering that the indicator is Phenolphthalein, then it will remain colourless. If it is methyl orange, then it will become red. If it is universal indicator, then it will become blue to dark blue. Because leaves are slightly acidic.

which of the following beat describes the producers in a terrestrial food web​

Answers

Answer:

the photo?

Explanation:

the photo? there isnt a picture

Which best describes what solar systems are comprised of? stars, planets, moons, asteroids, and comets galaxies universes planets, moons, comets, and asteroids

Answers

Answer:

The correct answer is star,moon,planets,moons, astroid and comets galaxy universes planets,moon, comets and astroids.

Explanation:

The above answer is correct

Drag the tiles to the correct boxes to complete the pairs.

Match the terms with their definitions.

Dominant gene.
Phenotype.
Gene.
Genotype.

A sequence of DNA responsible for coding a protein ___.

The complete range of alleles an organism carries for a specific trait ___.

An allele that determines the outward trait of a heterozygous organism ___.

The observable characteristics of an organism ___.

Answers

Answer:

1. phenotype

2. dominant gene

3. genotype

4. gene

The government of a flood prone region wants to implement some measure to reduce risk of floods. Which method is likely to reduce the risk of floods in that region

Answers

Answer:

The correct answer is "preservation of wetlands".

Explanation:

Wetland are areas of lands that are saturated with water, usually comprised by marshes or swamps. Preservation of wetlands help to reduce the risk of floods because wetlands temporarily store and slow the release of stormwater. It has been reported that areas where wetland have been lost, the chances of flood increases by as much as 80 percent. The government of a flood-prone region would likely reduce the risk of floods by preserving its wetlands.

When deciding on new environmental policies
and laws, which term is used to describe the
comparison between benefits and costs of
human activities?

Answers

Answer:trade-off

Explanation:trust me bro i just got it right

Plants such as Venus fly trap and the Sindhu attract and consume in six these plants are able to produce substance which breakdowns in six into compounds that are usable by plants one element obtain from these compounds is nitrogen the chemical compounds that break down the insects are most likely

Answers

Answer:stomach acids i presume such as Gastric acid, or what most people call stomach acid, is vital in the proper breaking down of your food. It's composed of multiple compounds and enzymes, which form the fiery cocktail of hydrochloric acid (HCI), potassium chloride and sodium chloride.

Explanation:


What part of he wave is labeled with an A.
Trough
Crest
Amplitude
Wavelength

Answers

Answer : Wavelength

Wavelength is the distance between two crests or two troughs.

The part of an enzyme that binds to the substrate is

The reaction center
The products
The active site
The inhibition cente

Answers

Answer:

active site

active site is the part of enzyme which binds to the substrate

The part of an enzyme that binds to the substrate is

[tex]\sf\purple{c.\:the \:active\: site}[/tex] ✅

The active site is a region on an enzyme where substrate molecules bind and undergo a chemical reaction.

[tex]\bold{ \green{ \star{ \orange{Mystique35}}}}⋆[/tex]

Helppppppppppppppoo meeeeeeee

Answers

The second answer is the correct one
2, 3, 1, 4, 5, 6

Good luck I hope this helped!

tRNA is involved in?
A. carrying amino acids
B. carrying glucose molecules
C. carrying ribosomes
D. carrying nucleotides

Answers

Answer:

carrying aminio acid

hope this helps!

add me as a friend if you can:)

A. Carrying amino acid

In a prokaryotic cell, most ribosomes are

Answers

Answer:

They are roughly 40 percent protein and 60 percent rRNA.

Explanation:

I hope this helped:)

que es el arte rupestre​

Answers

Answer:

Explanation:

El arte rupestre es todo aquel dibujo o expresión artística prehistóricas que se hallan impresas en rocas y cavernas, ya que el hombre de este tiempo plasmaba allí su arte y desarrollaba gran parte de su vida en estas cuevas para refugiarse de depredadores y de las inclemencias climáticas.

Describing Periods on the Periodic Table
Which statement accurately compares the trends in atomic number and atomic mass in the periodic table?
The atomic number increases from left to right, while the atomic mass increases from right to left.
O The atomic mass increases from left to right, while the atomic number increases from right to left.
O Both the atonic mass and the atomic number increase from left to right.
O Both the atomic mass and the atomic number increase from right to left.

Answers

The atomic mass and the atomic number increase left to right

Forest fires can cause a secondary disturbance in an ecosystem what is a secondary disturbance

Answers

Answer:

A progressive series of changes that take place in an area where a

community is living.

Explanation:

Answer:

important to remember that the so called “secondary” disturbance is secondary only because it occurs second sequentially.

Explanation:

hope it helps

2. Give one possible reason why the population decreased in 1990 after it had reached its
carrying capacity
1 I

Answers

Answer: The population exceeded its carrying capacity because there were more resources available so many deer reproduced and the population quickly exceeded the carrying capacity.

Explanation:

When the population size exceeds the carrying capacity, the population must decrease. One possible reason is the lack of available resources to support this population size.

What is Carrying Capacity?

A growing population that inhabits a limited space is gradually affected by density, rebounding in the multiplication rate.

The population growth per capita rate decreases as population size increases.

The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.

Carrying capacity refers to the maximum point at which the environment can support a growing population.

K is a constant. It coincides with the population size when natality rate and mortality rate are equal to each other. This is the equilibrium point.

If the population size, N, is inferior to K ⇒ the population still grow.  When N approximates to K ⇒ the population's growth speed decreases. When N=K ⇒ the population reaches equilibrium, When N is superior to K (N>K) ⇒ the population must decrease in size because there are not enough resources to maintain that size.

So when the population size exceeds K, carrying capacity makes the population decrease in size. This is because there are not enough resources for this population to survive.

Probably this population's size exceeded the carrying capacity because there were available resources and animals were not predated by any other species. So this population kept growing until they exceeded the carrying capacity level.

Once they did it, the environment could not support this population size, probably because of the lack of available resources, so the population had to decrease in size. Mortality rate must have increased while natality rate must have decreased.

One possible reason is the lack of available resources to sopport this population size.

You can learn more about carrying capacity at

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Select all that apply.

Which of the following are not properties of lipids?

derived from fish, beans, milk, and eggs
held together by peptide bonds
made up of steroids and phospholipids
deep, long-term storage of energy

Answers

Answer:

b

Explanation:

because they are held together by ester bonds not peptide bond :)

What are the products of photosynthesis?
O A. C2H4O2 and H20
O B. C2H4O2 and 02
O C. C6H1206 and H20
O D. C6H1206 and 02
:)

Answers

Answer:

c

Explanation:

am not really sure but the c6h12o6 actually stands for glucose

Which part of the brain is indicated by the arrow below?
Pons
Cerebellum
Cerebrum
Medulla oblongata

Answers

Answer:

Pons

Explanation:

The Pons of the brain is indicated by the arrow below.

Pons is located in front of cerebellum, composed up nerve fibers make a bridge between he two hemispheres of the cerebellum of brain. Thus option A is correct.

What are the different parts of brainstem ?

The brain stem have different parts such as midbrain, pons, medulla oblongata.

The midbrain present  between the cerebrum and pons.

The nuclei and cerebral tracts are present, where nuclei act as a  relay stations for both ascending and descending nerve fibers, mainly involve in auditory and visual reflexes.

Pons is present in front of cerebellum, the nerve fibers make a bridge between the two hemispheres of the cerebellum.

Medulla oblongata is the most interior part of the brain stem, continuous with the spinal cord, the outer portion is called white matter and the central portion have grey matter.

Thus option A is correct.

Learn more about Brain, here:

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Which is an example of a physical change?

A. Wood rots.

B. Water evaporates.

C .A nail rusts.

D. Gasoline ignites.

Answers

Answer: Water Evaporates

Explanation: When water changes from a liquid to a gas it isn't going under and chemical reaction it's just evaporating. But when Wood rots, A nail rusts, and gas ignites those are all undergoing a chemical change

Answer is B water evaporating doesn’t change the chemical formula of it

sal'jdhkblajshdbjkadsbjadsds

Answers

Answer:

Huh?? what did you say?

Explanation:

With 600 islands, the largest freshwater lake in Europe is Lake _________​

Answers

Answer:

Lake Ladoga is the answer

5. What is Virus ? Explain.
वाइरस क्या है ? समझाइए।​

Answers

Answer:

A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism.

Which event is most likely to lead to a heat wave?
A. A high-pressure system lingering over an area
B. A warm, moist air mass moving over a cooler air mass
C. An extremely low-pressure system moving into an area
D. A high-pressure system colliding with a low-pressure system
SUBMIT

Answers

Answer:

The correct answer is - A. A high-pressure system lingering over an area.

Explanation:

A heatwave is a period of hot weather that is not normal in the region that can last for two or more days. Heatwaves only take place in case of a temperature increase above the average for a particular area in history.

When air trapped in a particular area due to a high-pressure system. The trapped are leads to an increase in the temperature due to sunlight which leads to the heatwave.

Why does a buzzer starts to buzz as soon as the circuit is complete?

Answers

Answer:

The circuit is complete again and the the electric charges start to flow. ... Depending on the distance between the electromagnet and the nail, the rigidity of the rubber band and the strength of the electromagnet, the circuit can be broken and completed several times a second. Hence you hear a buzzing sound

Answer:

Depending on the distance between the electromagnet and the nail, the rigidity of the rubber band and the strength of the electromagnet, the circuit can be broken and completed several times a second. Hence you hear a buzzing sound.

Match the information given with the correct stage of labor: 1st (dilation), 2nd (expulsion), or 3rd (placental).
1. Stage that has the onset of regular uterine contractions and dilation of the cervix___.
2. Stage in which the cervix dilates to a diameter of about 10 cm____.
3. The stage which commonly lasts 8-24 hours____.
4. The stage in which the amniotic sac ruptures____.
5. The stage in which the baby exits the vagina_____.
6. The stage which commonly lasts from a few minutes to an hour____.
7. The stage in which contraction of the woman's abdominal muscles assists the uterine contractions_____.
8. The stage in which the placenta is expelled from the uterus_____.

Answers

Answer:

The correct answer is -

1) 1st stage

2) 1st stage

3) 1st stage

4) 1st stage

5) 2nd stage

6) 2nd stage

7) 2nd stage

8) 3rd stage.

Explanation:

Labor has three different stages 1st (dilation), 2nd (expulsion), or 3rd (placental).

Stage 1st: It is the stage that starts with dilation of the opening of the cervix to 10 cm and contraction of the uterus.

Stage 2: in this stage fetus head moves to the cervix and gets into the birth canal of the mother.

stage 3. The placenta and umbilical cord expel from the mother and this is cut after the delivery.

What is the process of mitosis?

Answers

Answer:

duplication of 2 dioploid identical sister cells

Explanation:

inter-phase, pro-phase, meta-phase, ana-phase, telo-phase, cytokinesis

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