What percentage of the Earth's surface do forests cover? 20% 30% 40% 10%

Answers

Answer 1

30% of the earth's surface is covered by forests.

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Related Questions

steps of Biological method of study taking malaria as an examples

Answers

Explanation:

The different steps which are involved in biological method are the the invasion, the rapid division followed by the spread of infection. ... Malaria results in infection after the bite of the female anopheles mosquito. The parasites enter the bloodstream. as a result of this there is predominant infection.

What do nitrifying bacteria do?

Answers

Answer: Nitrifying bacteria such as Nitrosomonas play an important role in providing nitrogen to plants and limiting carbon dioxide fixation. They are found widely distributed in soil or water, where there are large amounts of ammonia, such as lakes or streams into which treated and untreated sewage is pumped.

Explanation:

Answer:

They change Nitrogen to Nitrite and ammonia. Which helps plants to use Nitrogen even though it's in another form.

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Question What was the ratio of tall to short plants in the F2 generation of Mendel's experiments? A. 3:1 B. 2:1 O C. 1:1 D. 6:1 ​

Answers

Answer:

A

Explanation:

Answer: 3:1

Explanation:

i got it right on the test

2. How are each of the following groups likely to feel about the reintroduction of wolves in Yellowstone National Park? (write 2-3 sentences for each)

a. Tourists who visit the park

b. Environmentalists (people who want to protect the nature of Yellowstone)

c. People who live near the park

Answers

Answer:

a) Good

b) Good

c) Bad

Explanation:

Tourists who visit the park feels good about the reintroduction of wolves in the park because it is a new animal they are seeing in the park. Environmentalists also feels good because this action is a step towards the protection of organisms present in the nature. People who live near the park does not feel good because wolf is a dangerous animal and if he escaped from the park, the lives of the people will be in danger.

a pupil performed an experiment in a school lab to show the action of a digestive enzyme on a food substance

a) Name and enzyme suitable for such an experiment
b) Name a food substance on which the enzyme that you have named will act
c) Describe any preparation of the food required before the experiment is performed. If no preparation is required state why?
d) give the temperature at which the enzyme-food mix should be maintained for the experiment to work
e) how much time is needed for digestion of food in this experiment?
f) describe a test to confirm that digestion has occurred ​

Answers

I prefer d as the correct answer!!!

The image shows groundwater zones. Top to bottom: Porous rock or soil, Water, Impermeable rock. Zone 1 is at the top of porous rock. Zone 2 is between porous rock and water. Zone 3 is in the Water. Zone 4 is between the Water and Impermeable rock. Which is the saturated zone?

Answers

Answer:

zone 3

Explanation:

Answer:

C

Explanation:

The hypothalamic hormone that triggers the secretion of FSH and LH from the anterior pituitary is

Answers

Answer:

Hypothalamic-Pituitary-Gonadal Axis

GnRH produced by the hypothalamus stimulates the production of both LH and FSH. FSH functions by stimulating ovarian follicular development in females and regulating spermatogenesis in males. LH induces ovulation and corpus luteum formation in the ovaries.

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Proteins in the cell membrane have many functions. Which type of protein would be used for cell recognition and as a receptor? A. Pore proteins B. Endoplasmic proteins C. Glycoproteins D. Integral proteins

Answers

Answer:

C. glycoproteins

Explanation:

Glycoproteins are proteins containing glycans (oligosaccharide carbohydrates) attached to amino acid side chains. These oligosaccharides are attached to the amino acid chain by a posttranslational modification referred to as glycosylation, a modification generally found in extracellular regions. Glycosylation refers to the chemical reaction in which a glycosyl donor (i.e., the carbohydrate) is attached to a functional group in the protein. The glycosylation sites play distinct functional roles for both cell interactions and cell recognition. Moreover, glycosylation sites are also essential for substrate recognition by an enzyme. For example, secreted cytokines are glycosylated, which is required for their binding to receptors.

Why is environmental science important?

Answers

Explanation:

it is where we live and share resources with order species

I hope this was helpful

The process whereby the earth’s life changes over time through changes in genes of populations of organisms in succeeding generations is called____.a. emigration.b. mutation.c. natural selection.d. evolution.e. genetic drift.

Answers

Answer:

The correct answer is option : d. evolution.

Explanation:

Change in the heritable traits or characteristics of population of a organism over time by the adaption or changes in genes of such population over successive generation is known as the evolution.

These changes that cause the evolution of the biological population is caused by the process of adaption through natural selection that is the ability of the passing beneficial genes from parent to offspring.

Thus, the correct answer is option D. evolution.

The image shows a food web in an Arctic ecosystem. Rising temperatures in the Arctic Ocean can lead to large die-offs of phytoplankton, which are autotrophs. What would most likely happen in an Arctic ecosystem if the phytoplankton population decreased?

Answers

Answer:

as the population of phytoplankton decreases, the amount of food for zooplancktons decreases

How are the proteins inside your body affected by the presence of water and other molecules?

Answers

Answer:

Our body is constitute of several essential molecules such as proteins, fat, carbohydrate, water, and other molecules.

Each molecule has some of the impact of other molecules in the body. Impact of water and other molecules on proteins inside the body are as follows:

Proteins have ligand-binding site and water provide stability to the ligand-binding site of proteins through its hydrogen bonds.Conformational flexibility and transitions of proteins are due to the presence of water molecules in it.Disbalance in the pH of body due to changing concentration of sodium-potassium ions can denature the protein. Enzymes present in the body can control the rate of formation of proteins in the body.

which best describes bacterium?

Answers

Answer:

Bacteria (singular: bacterium) are classified as prokaryotes, which are single-celled organisms with a simple internal structure that lacks a nucleus, and contains DNA that either floats freely in a twisted, thread-like mass called the nucleoid, or in separate, circular pieces called plasmids. Hope this helps :))

Explanation:

Answer:

Bacteria are classified as prokaryotes, which are single-celled organisms with a simple internal structure that lacks a nucleus, and contains DNA that either floats freely in a twisted, thread-like mass called the nucleoid, or in separate, circular pieces called plasmids.

Explanation:

How are the molecules in photosynthesis and cellular respiration similar? Please include descriptions of the molecules

Answers

Answer:

They are similar because they both produce energy but in two different forms.

Photosynthesis- It produces oxygen and G3P, simple carbohydrate molecules that are high in energy and can be converted into glucose, sucrose, or other sugar molecules.

cellular respiration-During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water.

They exhibit the same responses, but they do so in reverse. Carbon dioxide and water are converted during photosynthesis into glucose and oxygen. Carbon dioxide and water are produced during respiration in exchange for glucose and oxygen.

What similarity in photosynthesis and cellular respiration?

Energy transformations from one form to another are a part of both respiration and photosynthesis through a sequence of metabolic reactions.

The reactions that are carried out by both processes—which both use and produce ATP—are carried out on membranes and are managed by enzymes.

Light energy is converted by photosynthesis into chemical energy that is stored in glucose, which is then released by cellular respiration to create ATP, the life-sustaining compound.

Therefore, They are similar because they both produce energy, but in two different forms.

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What results if a broken chromosomal fragment becomes reattached as an extra segment to a sister or non-sister chromatid? A Duplication B Inversion C Polyploidy D Nondisjunction

Answers

Answer:

The correct answer is option A "Duplication".

Explanation:

Chromosomal duplication is defined as a type of rearrangement of genetic material at which extra copies of a DNA fragment are created. In this case if a broken chromosomal fragment becomes reattached, this fragment will represent an extra copy, and therefore the resultant genetic material is considered a chromosomal duplication.

what are the major groups of animals and how to they differ

Answers

There are many living things in the world. To keep them simple and easier to remember, the scientists had identify many groups of animals. The six main groups are: invertebrates, mammals, birds, amphibians, reptiles and fish.

Which of the following is not a negative consequence of upward urban growth?
a pollution
b creation of a "heat island"
C. increased use of surrounding land
d. waste management issues
Please select the best answer from the choices provided
A
OOOO

Answers

Answer: I believe its C

Explanation:

Answer:

C. increased use of surrounding land

Explanation:

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Which of the following is a distinct structure found specifically in the liver, spleen, and bone marrow?
Select one:
a. Sinusoidal capillaries
b. Fenestrated capillaries
c. Venous sinus
d. AV anastomoses
e. Continuous capillaries​

Answers

Answer:

option A is correct

Explanation:

Only ------ percent of the food eaten is turned into its own body. *



20%

12%

10%

40%​

Answers

Answer:

12% I think this is right answer v

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Answer:

the answer is 10%

Explanation:

the 10% rule states that only 10% of energy is passed from one trophic level to the other (organism to organism)

Ultra-high-temperature sterilization effectively reduces microbes that cause spoilage. removes only mesophilic microbes. reduces microbes that cause disease. removes all microbes that cause diseases or spoilage. reduces microbes that cause disease or spoilage.

Answers

Answer:

kills all microbes that cause disease or spoilage.

Explanation:

There are different methods of sterilization, such as ultraviolet radiation, autoclave mechanisms, etc.

The sterilization mechanisms eliminate the microorganisms completely, thus generating sterile surfaces.

These mechanisms are used with surgical instruments, the operating room environment.

The autoclave method is the most widely used today due to its economical price, its ease of use and its practicality.

Sterilization methods must be strictly controlled with pilot or test microbiological cultures to be able to corroborate that these mechanisms function correctly, since otherwise they could trigger strong pathologies due to cross contamination.

Please I need help with this

Answers

TAAGCCGATAAATGCTAACGGTA

Why was the Nationalist Party more popular in China’s cities than in the countryside? Wealthy people who supported the party were concentrated in cities. People in the countryside were less active in politics than people in the city. Poor city dwellers hoped the Nationalist Party would bring economic change. The Nationalist Party threatened to end crop trade with Western nations.

Answers

Answer:

Wealthy people who supported the party were concentrated in cities.

Explanation:

Answer:

The answer is A on edge

Explanation:

SIOM CSserials
What has a greater influence on protein levels?
(1 point)
Protein degradation has a greater influence because outside factors like antibiotics can
cause it, and it is difficult to recover from.
O
Protein degradation has a greater influence because they are denatured faster than the cell
can produce them.
mRNA destroyer concentration has a greater influence because it is destroying mRNA before
proteins can even be produced.
mRNA destroyer concentration has a greater influence because mRNA is destroyed right
after the proteins are produced.

Answers

Answer:

mRNA destroyer concentration has a greater influence because it is destroying mRNA before  proteins can even be produced.

Explanation:

Proteins are synthesized from mRNA through the process of translation. mRNAs are first synthesized from a coding DNA template through the process of transcription. Hence, if mRNAs are destroyed, it means proteins will not be synthesized at all.

Protein not being synthesized at all means that mRNA destroyer concentration has a greater influence on protein levels than protein degradation. With protein degradation, not all the protein is degraded at once and some quantity of the protein can still be found, but with mRNA destroyer concentration, no protein can be found at all because it was not synthesized in the first place.

While performing an experiment, it is important to:
a. change the control setup
b. test many different variables at the same time
c. reach a conclusion
d. record observations and measurements

Answers

Answer:

D

Explanation:

While performing an experiment, it is important to record observations and measurements, as in Option d. Option d is correct regarding the facts of the experiments, while the others are wrong.

What is an experiment?

The experiment is carried out to observe the hypothesis, and in this process, a control set-up is taken whose value or result is already known, and the variables are taken and compared with the control. The controls set should never change in the experiment because the variables are tested with reference to them, and the measurements and observations of the experiment should be taken into consideration to prove the hypothesis. All the variables should not be tested at once because if this is done, it would introduce error into the experiment, and not all the experiments are done to get the conclusion.

Hence, while performing an experiment, it is important to record observations and measurements, as in Option d.

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who discovered micro organisms​

Answers

Robert Hooke is the person that discovered Micro organism

Answer:

An English architect, "Robert Hooke" discovered micro organisms in 1665.

Hope this helped!

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BRAINLIEST would really help me:)

A gamete is best described as what?
A. The protective outer layer of an egg cell.
B. An enzyme in a sperm used to digest the egg cell's membrane.
C. A haploid cell produced for reproduction.
D. A diploid cell produced for reproduction.

Answers

Answer:

C. A haploid cell produced for reproduction.

Explanation:

The term "gamete" refers to reproductive cells such as sperm and ova. Sperm and ova are both haploid cells that unite to form diploid cells.

Metals are useful in industry because they can be shaped without breaking. What is this property of metals called?

Answers

Answer:

malleable ................

Answer:

versatility ductility conductivity malleability

what type of cash crops have been genetically modified..... please help!!!!!

Answers

Answer:

Most food modifications have primarily focused on cash crops in high demand by farmers such as soybean, corn, canola, and cotton. Genetically modified crops have been engineered for resistance to pathogens and herbicides and for better nutrient profiles.

Explanation:

name 3 physiological processes of cell membrane?{3mks} plz help me guys

Answers

Answer:

the cell membrane is an extremely pliable structure composed primarily of back -to- back phospholipids (a "bilayer")

Which element is being cycled through Earth's system in the image shown
below?
Fossil fuels
Cellular
respiration
Photosynthesis
Animals
Plants
Industry and Home
Death and
decay
A. Oxygen
B. Nitrogen
c. Hydrogen
O D. Carbon

Answers

I took this quiz about 2 weeks ago but I forgot the answer. I think it was Carbon but you shouldn’t trust me till someone confirms it
carbon! hope this helps!!
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A spinner has 10 equally sized sections, 5 of which are gray and 5 of which are blue. The spinner is spun twice. What is the probability that the first spin lands on gray and the second spin lands on blue? Write your answer as a fraction in the simplest form. f(x) = -3x + 7What is f (0)? Can podocyte cells in the Bowmann capsule attach to any other basement membrane other than the glomerular basement membrane? That is, it can itself have a separate layer of base membrane? The power lines are at a high potential relative to the ground, so there is an electric field between the power lines and the ground. To maximize the potential difference between one end of the fluorescent tube and the other, how should the tube be held?a. The tube should be held horizontally, parallel to the ground b. The potential difference between the ends of the tube does not depend on the tube's orientation. c. The tube should be held vertically perpendicular to the ground How the electoral college controversy during the Hayes-Tilden presidential election of 1876 was resolved? GIVING BRAINLIEST TO THE FIRST PERSON TO ANSWER! Three stores have the same tablet computer on sale. The regular price of the tablet is $150. Store A is offering the tablet on sale at 15% off the regular price. Store B is offering a $25 coupon to be deducted from the regular price. Store C is offering a rebate of $20.00 to purchasers. Store D has the tablet on sale for $120.00. Which store is offering the tablet at the lowest cost? A. Store AB. Store BC. Store C D. Store DShow ALL work please! musah stands at the center of a rectangular field . He first takes 50 steps north, then 25 step west and finally 50 steps on a bearing of 315. How far west and how far north is Musah final point from the center? A consumer plays the role of:A)a wage earner.B)a saver.C)a borrower.D)All of these choices are correct. What is the energy of a photon of electromagnetic radiation with a wavelength of 963.5 nm? (c = 3.00 108 m/s, h = 6.63 1034 J s subtract c from 7, then divide b by the result If f(x) = 32 +1 and g(x) = 1-, what is the value of (f-g)(2)?12143638 Which of the following elements has a complete outer shell of electrons? A. Iron (Fe) B. Hydrogen (H) C. Neon (Ne) D. Nitrogen (N) According to Aristotle, poetry is a form of _____ 6(x + 2) = 30Solve the following linear equation Discuss fivefive of component ofa map When brown iodine is exposed to starch it turns dark purple. In an experiment, you placed a cornstarch solution in a small plastic bag. Next, you placed the bag in a beaker of water containing 10 drops of iodine. If the solution in the plastic bag turned dark purple (Select all that apply) a) the plastic bag was permeable to cornstarch. b) the plastic bag was permeable to iodine. c) the iodine moved into the plastic bag. d) the cornstarch moved into the beaker. e) the plastic bag was selectively permeable. How has the work of chemists affected the environment over the years? WILL GIVE BRAINLY!!!!!!!!!!!!!!!!!!!!!!!!!!There were six traits of good character discussed in the lesson: respect, compassion, perseverance, courage, integrity, and trustworthiness. Which of the listed traits is the theme of the poem It Couldnt Be Done? In a paragraph of not less than five sentences, discuss your choice and give at least two quotes from the poem to justify your selection. Somebody said that it couldnt be done But he with a chuckle replied That maybe it couldnt, but he would be one Who wouldnt say so till hed tried. So he buckled right in with the trace of a grin On his face. If he worried he hid it. He started to sing as he tackled the thing That couldnt be done, and he did it! Somebody scoffed: Oh, youll never do that; At least no one ever has done it; But he took off his coat and he took off his hat And the first thing we knew hed begun it. With a lift of his chin and a bit of a grin, Without any doubting or quiddit, He started to sing as he tackled the thing That couldnt be done, and he did it. There are thousands to point out to you one by one, The dangers that wait to assail you. But just buckle in with a bit of a grin, Just take off your coat and go to it; Just start in to sing as you tackle the thing That cannot be done, and youll do it. Jon wants to buy carpet to cover his whole living room, except for the tiled floor. The tiled floorisoft by 3 1 ft. Find the area the carpet needs to cover. !1245tiled floorEntar AFind the value of x. Your answer must be exact.309