What three problems had to be solved before plants could be well adapted to life on land ? What was the evolutionary solution to each of these problems?

Answers

Answer 1

Answer:

Explanation:

Avoiding dehydration. Plants on land would have developed roots to acquire water from the soil. They also developed stomata ( by difinition: Stomata permit the absorption of carbon dioxide necessary for photosynthesis from the air, as well as the removal of excess oxygen) on the underside of their leaves to reduce water loss. Adaptation to arid environments involved waxy coats and fleshy leaves for water storage.*biology


Related Questions

What plant physical structure or organ has a similar function to fish scales? Stem Stamen Bark Flower

Answers

Answer:

Bark

Explanation:

The scales on the fish serves as protection for the fish. And the tree bark serves as protection for the tree.

Bark has a similar function to fish scales and plant physical structure.

What is a fish scale?

"A fish scale is a small rigid plate that grows out of the skin."

What are the function of fish scales?

Fish scales primarily serve two purposes:

protection locomotion

What is a bark?

"Bark is the outermost layers of stems and roots of woody plants."

What is the main function of a bark?

"The main function of bark is to protect the tree from the outside world."

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During replication, which enzyme works to join newly created DNA strands together along various sites of the DNA macromolecule? RNA ligase DNA polymerase DNA ligase RNA polymerase

Answers

Answer:

DNA ligase

Explanation:

please tell me if I'm wrong

Where does respiration take place in the cell? ​

Answers

Answer:

The mitochondria is the location in the cell where most of cellular respiration takes place, although a small amount of cellular respiration does take place in the cytoplasm. The mitochondria is often called the power house of the cell because it is involved with making energy for the cell.

Answer:

aerobic respiration happens in the mitochondria.

During what amphibian life cycle stage does the organism return to water with regular frequency to reproduce? metamorphic stage egg stage larvae stage adult stage

Answers

Answer:

adult stage

Explanation:

adult reproduces

Please Help ! Look at the diagram. What type of cell is shown by number 5?

Answers

Answer:

it will be a neuron

Explanation:

it will be unipolar neuron.it has a branch also

i have a request plzz mark this answer as brainliest

Neuron is that cell which indicates by diagram number 5 because the shape is just like the cell of neuron.

Neurons are the fundamental units of the nervous system. These neuron cells are responsible for receiving sensory messages from the external environment and send to nervous system and brain. The brain and nervous system sending commands to the muscles through motor neurons. This neuron cell is different from other types of cell so we can say that the diagram 5 represents neuron cell.

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Daniel’s doctor is trying to determine the cause of his recent onset of asthma symptoms. Of the information Daniel provided, which would his doctor find most helpful in determining a cause?

a.

Daniel had never experienced asthma symptoms until now.

b.

Daniel notices the asthma symptoms occurs more often during cross country practice.

c.

Daniel’s worst symptom is shortness of breath.

d.

Daniel’s sister was diagnosed with asthma at an early age.

Answers

Daniel worst symptom is shortness of breath.

That is also one of the emerging cause in asthma patients

Shortness of breath is the worst symptom which can help doctor determine his onset of asthma symptoms. Therefore, option (C) is correct answer.

What is asthma?

A illness that affects your lungs is referred to as asthma. Although it is more prevalent in children than in adults, asthma is a chronic condition that can affect people of any age. In people who suffer from asthma, nighttime and early morning coughing, wheezing, shortness of breath, and chest tightness are common symptoms.

Even though there is no cure for asthma at this time, medication can help control the symptoms so that you can lead a normal, active life. The most common form of treatment involves the use of inhalers, which are handheld medical devices that deliver medication via inhalation. If your asthma is severe, you may also need to take tablets and participate in other therapies.

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How would you explain to an athlete why damaged joint ligaments and cartilages are so slow to heal following an injury?

Answers

Answer: They have little to no direct blood supply.

Explanation: “Ligaments and cartilage injuries are very common injuries for people who practice sports. Damaged joint ligaments and cartilage are slow to heal because these structures don't have a significant blood supply, which brings necessary fluid and nutrients to the injured place. These nutrients and fluids are essential for damage repairing. If ligaments and cartilage become injured, their limited blood and nerve supply result in a longer recovery and healing period.”

The reason why damaged joint ligaments and cartilages are so slow to heal

is as a result of little blood flow within them.

Cartilages and ligaments are connective tissues which help to connect

bones and other parts together. This part of the body has very little blood

flow and a result blood carrying nutrients aren't adequately supplied to the

region.

Different nutrients and compounds which promote healing and repair of

worn out tissues are found in the blood and failure to reach these regions is

why healing is slow.

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7. What characteristic of iron would make it a bad material for the housing
around a compass? (5 points)

Answers

Answer:

it could not be used because it can attracts the magnets in which compass it self is a form of magnet which can utilize the magnetic properties of the earth to give a reading and Compass housings are often made of either brass, aluminium or plastic.

Explanation:

The characteristic of iron that would make it a bad material for the housing around a compass is that it could not be used because it can attracts the magnets in which compass it self is a form of magnet which can utilize the magnetic properties of the earth to give a reading reason been that Compass housings are often made of either brass, aluminium or plastic

Secondly it would confuse the magnet thereby making it un-useful or useless because the iron can easily become magnetized itself and Iron is a magnetic metal which can cause the needle of a compass to give a false reading thereby messing up the magnet's direction and making it useless.

A patient is admitted to your emergency room because of uncontrollable flailing arms. After a quick test, you determine the cell membranes in their arm nerves are damaged, and the cells aren’t signaling properly. Which type of protein needs to be repaired? A. Endoplasmic protein B. Integral protein C. Phosphoprotein D. Pore protein

Answers

Answer:

b

Explanation:

Answer:

b

Explanation:

does anyone know the answer to question 5 because i am really struggling?? thank you!!

Answers

Answer:

A. is correct... C and D are correct but B is wrong

Explanation:

hope this helped :)

u dont have to trust my answers! Lol i suck at this but good lucks!!! :))

What is taken
as an average
over 30 years?

O A. Elevation
OB. Weather
OC. Climate
OD. Latitude

Answers

Answer:

I guess its climate.......

Which career combines DNA technology and medicine?

a- pharmaceuticals
b- paternity testing
c- environmental studies
d- biopesticide development

Answers

Answer:

a- pharmaceuticals

Explanation:

Pharmaceuticals is a demanding and challenging field which tests your knowledge of  DNA technology and medicine because they are the ones making drugs for new diseases and such. Thus they need to know how to prepare those drugs to target certain cells or organelles and such and need to know how it will affect the human being and/or other living beings

Answer:

Yes, the answer to Which career combines DNA technology and medicine?

is A: pharmaceuticals

Explanation:

I got it right in edg 2020

Also, if you are looking for the answer to Which career combines DNA technology and forensics?

the correct answer for this is B: paternity testing

I also got it right in edg 2020

hope this is of help :)

Cilia in the sinuses sweep away: air. carbon dioxide. irritants. water.

Answers

Answer:

air and carbon dioxide

Explanation:

Answer:

c

Explanation:

what is energy coupling?

Answers

Answer:

Energy coupling occurs when the energy produced by one reaction or system is used to drive another reaction or system

Explanation:

Energy coupling occurs when the energy produced by one reaction or system is used to drive another reaction or system

Explain how the interconnectedness of living and nonliving things is shown in the biogeochemical cycles.

Answers

Explanation:

energy flows, but matter is recycled.

the chemical components that make up living organisms are different they get recycled.....

biogeochemical cycles important to living organisms include the water carbon ..... body have been part of a huge number of living and nonliving things over the course of time!

While an important source of freshwater, groundwater is not as widely used as rivers and springs. Please select the best answer from the choices provided T F

Answers

Answer:

False

Explanation:

EDGE 2021

While an important source of freshwater, groundwater is not as widely used as rivers and springs. This is a false statement because groundwater is widely used.

What is the use of ground water?

The fresh water is present in lakes, springs, rivers, and ponds, and some remains as groundwater. Apart from this, water is present in the ocean and sea, but that can't be used for drinking purposes. The fresh water can have a wide range of uses, such as drinking, using in industry, taking baths, etc.

The groundwater is heavily used for drinking purposes, as this is considered to be less polluted. River and spring water are getting polluted due to the discharge of polluted water from industries. Ground water is misused, and due to heavy water loss, the amount of water keeps on declining. People from different areas are facing the issue of getting drinking water.

Hence, groundwater is heavily used. The statement is false.

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What happened to the catalase molecule when exposed to high heat and acid?

it grew larger
it disappeared
it dissolved
it changed shape

Answers

Answer:

2. it disappeared because the heated up acid ate it away

It disappeared bcuz of high heat and acid

Which of the following is a consequence of humans using fossils fuels?

Answers

Answer:

I think you forgot to put the options. But I hope this helps.

Explanation:

Burning fossil fuels emits a number of air pollutants that are harmful to both the environment and public health. Sulfur dioxide (SO2) emissions, primarily the result of burning coal, contribute to acid rain and the formation of harmful particulate matter.

Have a good day and stay safe!

Increased concentrations of atmospheric carbon dioxide is a consequence of humans using fossils fuels. The correct option is a.

What are fossil fuels?

Fossil fuels are derived from the decomposition of plants and animals. These fuels, which can be encountered in the Earth's crust and encompass carbon and hydrogen, can be burned for energy.

Fossil fuels include coal, oil, and natural gas.

The missing options of the question are:

a. Increased concentrations of atmospheric carbon dioxideb. Destruction of wildlife habitatsc. Leaching of waste into groundwaterd. None of the above

Increased concentrations of atmospheric carbon dioxide is a consequence of humans using fossils fuels.

Thus, the correct option is a.

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What is the scientific process? A. A group of logic science questions B. A way to avoid difficult problems C. A series of random science discoveries D. A formal method used to answer scientific questions

Answers

Answer:

A formal method used to answer scientific questions

Explanation:

please help write it descriptively 1. What's inside a black hole? 2. What happens if a person goes into a black hole? 3. What is black hole in simple words? 4. What are the 4 types of black holes? 5. Why is the black hole asymmetric?

Answers

Answer:

Answer to 1: a black hole is a tremendous amount of matter crammed into a very small (zero) amount of space. Answer to 2: the top of your head would feel so much more gravitational pull than the tips of your toes that you would be stretched, longer and longer Answer to 3: A black hole is a place in space where gravity pulls so much that even light can not get out.This can happen when a star is dying. The gravity is so strong because matter has been squeezed into a tiny space. because no light can get out, people can't see black holes Answer to 4: stellar, intermediate, supermassive, and miniature. Answer to 5: the asymmetry of bright and dark sections of the ring are caused by the Doppler effect as the matter is coming toward Earth (brighter) or receding (dimmer).

Explanation:

Which two statements describe organisms found in the kingdom Plantae?
O A. Their cells lack cell walls.
O B. They have prokaryotic cells.
O C. They are mostly autotrophic.
O D. They are multicellular.
SUBMIT​

Answers

Answer:

C. They are mostly autotrophic.

D. They are multicellular.

Explanation:

I did this question on A P E X and it’s right hope this helps!!

Proof:

The statements that describe organisms found in the kingdom Plantae is that they are mostly autotrophic and they are multicellular. Thus, option C and D is correct.

What are Eukaryotes organisms?

Eukaryotes organisms are organisms whose cells have a nucleus and membrane-bound organelles; whereas prokaryotic organisms are unicellular organisms that do not have membrane-bound structures and/or organelles. Eukaryotic organisms include animals (kingdom Animalia), plants (kingdom Plantae), fungi (kingdom Fungi), and protists (Kingdom Protista).

Multicellular organisms are organisms composed of two or more cells. Multicellular organisms include plants, animals and fungi. Photosynthetic organisms are organisms that make their own food from sunlight (e.g., plants).

Therefore, The statements that describe organisms found in the kingdom Plantae is that they are mostly autotrophic and they are multicellular. Thus, option C and D is correct.

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Kai looks at a photo of herself with her parents. She notices that, while her features are similar to her parents’ features, they do not appear to be identical. Which explains why this is the case?

Answers

Answer:

genetics

Explanation:

we have 46 chromosomes which is the diploid number , and when the sperm and ovum of kai's parents fused each were carrying 23 chromosomes which is haploid number , so kai took traits from both her mom and dad , which can never be identical to that of her parents

Answer:

A

Explanation:

Took the test



Why can the more complex sugar cellulose store more energy than the sugar

glucose?


A. Cellulose is made by plants.

B. Cellulose is smaller than glucose.

C. Cellulose has more chemical bonds.

D. Cellulose contains hydrogen atoms.

Answers

Answer:

Cellulose has more chemical bonds

Explanation:

It is complex carbohydrates molecule and stores thosands of energy as in glucose

The statement (C) is correct. The cellulose has more chemical bonds.

What do you mean by cellulose?

Cellulose is an organic compound with the formula ₙ, a polysaccharide consisting of a linear chain of several hundred to many thousands of β linked D-glucose units. Cellulose is an important structural component of the primary cell wall of green plants, many forms of algae and the oomycetes.

Moreover, cellulose, a tough, fibrous, and water-insoluble polysaccharide, plays an integral role in keeping the structure of plant cell walls stable. Cellulose chains are arranged in microfibrils or bundles of polysaccharide that are arranged in fibrils (bundles of microfibrils), which in turn make up the plant cell wall.

Hence, cellulose is an insoluble dietary fibre consisting of glucose polymers present in all cell walls of plants.

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what statement describes the danger of using heavy metals to control microbe growth?

A.heavy metals promote biofilm formation in humans

B.heavy metals stimulate some microbes to reproduce even more

C.heavy metals are toxic to many organisms besides microbes

D.heavy metals can assist with virus attachment to host cells

Answers

Answer:

The correct answer is - option C.

Explanation:

Heavy metals can alter the physiological and biochemical qualities or nature of the microbes or microorganisms. For instance, Chromium is able to denature the proteins of microbes and may cause oxidative damage.

Using heavy metals to control the microbe growth can be very dangerous as the ions of these heavy metals bind themselves to amino acid containing sulfur tightly and accumulate in the cells. This can be very toxic the most of the organisms besides the microbes.

Thus, the correct answer is - option C

The atmosphere is necessary for life on earth. Which one of the
following is not one of the life-supporting functions of the
atmosphere?
Select one:
a. Stores aerosol pollutants in the troposphere.
b. Contains gases necessary for cellular respiration.
c. Protects living organisms from harmful solar radiation.
d. Absorbs the sun's energy.
e. Plays an important part in the water cycle and many
nutrient cycles.

Answers

Answer:

A.

Explanation:

It is true that aerosol pollutants are present in the atmosphere, but they are usually harmful for life, so it doesn't support life functions. The other choices do help support life functions, so A is your answer.

Liquid water is thought to be unable to exist on the surface of the planet Mars. Although scientists hope to discover life on the Martian surface, as you have learned, the lack of liquid water poses many challenges for life. Construct an argument for whether or not a particular form of life (for example, bacteria and other single-celled organisms, plants, or animals) could survive on the Martian surface and why this is the case, using evidence you have gathered from the web resources provided and any other reliable sources to support your argument.

Answers

Answer:

I shall oppose to this notion

personally I think that since there no oxygen on mars the extraterrestrial creatures or alien plants may have alternative means of survival even if there ain't water

Answer I shall opposed You’re welcome

Which of the following is a false statement about sensation?
A) When sensory information is detected by a sensory receptor,
sensation has occurred.
b) Sensation refers to the way sensory information is organized,
interpreted, and consciously experienced.
c) There are differences in sensation between species.
d)
We have more than five senses.​

Answers

Answer:

Tha answer is D.This is because all senses depend on sensory receptor cells to detect sensory stimuli and transform them into nerve impulses. Types of sensory receptors include mechanoreceptors (mechanical forces), thermoreceptors (temperature), nociceptors (pain), photoreceptors (light), and chemoreceptors (chemicals).

The statement i.e. false related to the sensation should be option d. It contains more than five senses.

What is sensation?

In terms of neurology and psychology, sensation refers to the experience that resulted from the stimulation of the particular sense organ or the sense area in the brain. All types of senses should be based on the sensory receptor cells for detecting the stimuli of sensory and then converted into the nerve impulses.

Therefore, The statement i.e. false related to the sensation should be option d.

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A DNA template is used to create an mRNA strand.
An mRNA template is used to create a DNA strand.
A DNA template is used to create a ribosome.
An mRNA template is used to create a tRNA strand.

Answers

Answer:

D. An mRNA template is used to create a tRNA strand

Explanation:

Edge 2020 100%

Answer:

D

Explanation:

anyways, hope i aint too late to answer this question :)

Which is one reason why hydrogen is considered a better fuel source for cars? It is nonrenewable. It produces carbon dioxide. It emits no harmful emissions. It combines with water to produce electricity.

Answers

Answer:

I’m pretty sure it’s .D

Explanation:

Hydrogen is considered a better fuel it emits no harmful emissions.

Hydrogen:

Hydrogen is consider as clean fuel, when it is consumed with fuel cell produces only water. It is produced from variety of domestic sources such as natural source and renewable source such as solar and wind.

Hydrogen fuel can be used in:

Renewable liquid fuelsgasified biomassgasified coalDiesel

Once hydrogen gas is generated it produces electrical power in a fuel cell, emitting water vapor and air. Hydrogen's energy content by volume is low.

Hydrogen storage is a challenge because it requires high pressures, low temperatures, or chemical processes to be stored compactly. Hydrogen fuel should now be feasible and easily available so that people can easily buy it.

Therefore, Hydrogen is considered a better fuel it emits no harmful emissions.

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____are organic compounds that form plant support tissue and provide food for all living things. A) Carbohydrates B) Proteins C) Lipids D) Amino Acids

Answers

Answer:

I think the answer is A!

sorry if im wrong though!!

Answer:

d i just did the task

Explanation:

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Write the equation of the line that passes through the points (8, 1) and (2, 5) in standard form, given that the point-slope form is y + 1 = (x 8). x + y = Use the drop-down menus and what you have learned about potassium-argon dating to complete the sentences. Radioactive dating can be compared to an hourglass, with the elements on the top. Scientists compare in the rock to determine its age. Potassium-argon dating is ideal for dating and rock. Find m1, m2, and m4 if m3=4327. Brianna has been involved in a mass casualty event. She has a grade I concussion, periorbital injury, and closed fracture of a right lower extremity. What survival potential level should the nurse assign Brianna during triage? What is the start velocity of a javelin accelerated at 3.75 m/s2 for 2 seconds, and reaching 9375 m/s? In order to produce all the protein that a cell needs, transcription takes place __________. * a. using single-stranded RNA b. using double-stranded RNA c. on a gene segment only once d. on a gene segment over and over again Find the midpoint of the line segment with end coordinates of: (1,7) and (3,2) Give coordinates as decimals where appropriate. What was the Velvet Divorce? How does Buddhism differ from Hinduism? A. Hindus believe in the notion of karma, while Buddhists reject it. B. Hinduism originated in India, while Buddhism originated in Sri Lanka. C. Hindus believe in the process of reincarnation, while Buddhists don't. D. Hinduism is polytheistic, while Buddhism doesnt have gods and goddesses. WHAT'S THE ANSWER? Bill and Ralph both work as cashiers for fast food restaurants. They are paid minimum wage. They are attending a black-tie party in an upper-class neighborhood. They drove there from the same part of town and they don't know each other. While they feel out of place there, they feel an understanding with one another. From what we know, what best explains why? a. Ethnicity and race b. Region c. Socioeconomic status The demand in a market for smartphones has increased, causing prices torise. What effect will this likely have on the supply of smartphones?A. The supply curve will shift up according to the increased demand.B. Supply will decrease, as always happens when price increases.C. The supply point will increase by moving along the existing supplycurve, and the entire curve will shift upwards as well.D. The supply point will increase by moving along the existing supplycurve, the curve itself will not shift. if f(x)=4-8 and g(x)=5x+6, find (f-g) (x) Jack tries to place magnets on his refrigerator at home, but they wont stick. What could be the reason? PLEASE HELP ASAP 50 POINTS!!! Write an e-mail to a government or school official in which you propose an effective solution to a problem in your community or school. Which innovations arose in response to a health crisis in New York in 1864? Which of the following best describes the slope of the line below?A. ZeroB. PositiveC. NegativeD. Undefined A body is thrown vertically upward and the height travelled by it is 200m , find the initial velocity and time required to reach maximum height ? Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers. Factor completely, then place the answer in the proper location on the grid. x 3 - y 3 solve for x. 7x+4=30 Expand the following bracket -8(2d-3)