Leaf is modified into thorn where water availability is low.....give reason?

Answers

Answer 1

Answer:

To help conserve water or prevent loss via transpiration from the leaves

Explanation:

Some plants are found growing in habitats with little or no moisture content as annual rainfall is very low. These plants are called xerophytic plants. However, despite the low water condition, these plants are adapted to the environment and still survive.

One of their adaptation (structural) is that their leaves are reduced to thorns. Ideally, plants tend to lose water via the stomata on the leaves in a process called TRANSPIRATION. Hence, the leaves of plants adapted to a xerophytic habitat is modified to thorns in order to prevent water loss from the leaves and conserve the water.


Related Questions

Weathering and erosion are largely responsible for determining ___________.
A. the pattern of wind currents
B. the shapes and features of landforms
C. the height of mountains
D. the color of rocks and stones
Hurry!!

Answers

Answer:

B

Explanation:

it cause changes to shape size and texture of different landforms

Answer:

Correct answer is B

because erosion and weathering change the shape of the landforms

HAVE A NİCE DAY

Explanation:

greetings from Turkey ツ

To provide energy for the work that cells do, all cells need____

Answers

all living cells need oxygen

When two aqueous solutions that differ in solute concentration are placed on either side of a semipermeable membrane and osmosis is allowed to take place, the water will Group of answer choices exhibit a net movement to the side with lower solute concentration. exhibit a net movement to the side with lower free water concentration. exhibit an equal movement in both directions across the membrane. exhibit a net movement to the side with higher free water concentration

Answers

Answer:

exhibit a net movement to the side with lower free water concentration

Explanation:

The correct answer would be that the water will exhibit a net movement to the side with lower free water concentration.

Osmosis is generally defined as the movement of water molecules through semi-permeable membranes from the region of higher water potential or lower solute concentration to the region of lower water potential or higher solute concentration.

From the definition, it becomes obvious that there would be a net movement of water between the two solutions to the side with higher solute concentration or lower free water concentration.

Use the Punnett square to determine the ratio of offspring with the described trait to the total number of offspring

Answers

Explanation:

X y

X XX Xy

y Xy yy

capital letter is dominant

small letter is recessive

example

capital letter could be brown eyes

small letter could be blue eyes

66. A 64-year-old woman, who has always been proud of her suntanned, healthy look, is referred to a dermatologist with a blue-violet, painless, 1.5-cm lump in the skin of her left shoulder. The lump is firm and cannot be moved, and has grown very rapidly over the past few weeks. The mass is removed surgically and the pathologist diagnoses it as a Merkel cell carcinoma. If the UV radiation to which her skin was exposed affected the Merkel cells, what other cell type sharing the same specific epidermal layer might also be affected

Answers

Answer:

Basal stem cells for keratinocytes

Explanation:

Keratinocytes are epidermal cells located in the outermost layer of the skin (i.e., the epidermis). Moreover, the cells located in the basal layer of the skin are known as basal keratinocytes or basal cells. These basal cells are proliferative cells that undergo differentiation in order to form suprabasal epidermal layers. Merkel cells are neuroendocrine cells that are located in the basal layer of the skin (scattered among basal keratinocytes), which are attached to surrounding keratinocytes by intercellular junctions called desmosomes.

ang pogon na yari sa luwad ano ang ibig sabihin ng pugon​

Answers

Answer:

use English language please

Answer:

switch country to philippines so filipinos can help you..

cuz this is USA server brainly..

the two main function of sweat are a. to keep the body cool and to remove excess protein b. to remove waste products and to cool the body ​

Answers

Answer:

Then answer is A

Explanation:

A meiotic error occurred during gamete formation, resulting in an egg that has 24 chromosomes. If that egg is fertilized by a normal sperm, how many chromosomes will be in the zygote

Answers

Answer:

47 chromosomes

Explanation:

Meiosis is a kind of division that reduces the chromosome number of the daughter cells by half i.e. 2n - n. It occurs only in reproductive cells to produce sex cells or gametes. In humans, meiosis occurs to produce gametes (egg and sperm) that have 23 haploid chromosomes.

N.B: Somatic human cells have 46 chromosomes

According to this question, a meiotic error occurred during gamete formation, resulting in an egg that has 24 chromosomes. If that egg is fertilized by a normal sperm i.e. sperm with 23 chromosomes. A zygote that posseses (23 + 24) = 47 chromosomes will be produced.

When comparing the yield of ATP from the different stages of cellular respiration, which produces the greatest number of ATP

Answers

Answer:

The correct answer is - electron transport system.

Explanation:

There are 3 main stages of cellular respiration (aerobic) that are Glycolysis, the Kreb's Cycle and the ETS or Electron Transport Chain. The formation of energy in ATPare as follows:

Glycolysis - glucose > 2 Pyretic Acid Molecules =>2 ATP and Hydrogen

The Krebs Cycle - Citric Acid (a derivative of Pyruvic Acid) > 2 ATP in 4 cycles and  Hydrogen, carbon dioxide and water.

The Electron Transport Chain > electron carrying Hydrogens > releases the energy as 4 ATP and water

Thus, the correct answer is - The Electron Transport Chain is the stage that produces most of the ATP during cellular respiration.

In a two-point test cross, 36 of the offspring were recombinant types. The remaining 64 offspring were parental types. How many map units separate the two loci

Answers

Answer:

36

Explanation:

A two-point test-cross is a cross between an individual with a double heterozygote genotype and a homo-zygous recessive individual in order to determine the recombination frequency between two linked genes. In genetics, one map unit (m.u.) can be defined as the measure of the distance (i.e., genetic distance instead of physical distance) between genes for which one (1) product of meiosis in one hundred (100) is recombinant. In this case, 36 of the offspring have the recombinant phenotype, while the remaining 64 offspring are not recombinant, and therefore both genes are separated by 36 mu (64 + 36 = 100 >> 36 mu).

The distance between two genes is usually expressed in map units. In the exposed example, 36 MU separates the two loci.

----------------------------------

The map unit is used to express the distance between a pair of genes.

To interpret it, we need to consider that for every 100 meiotic products, one of them results in a recombinant product.

The genetic distance will result from multiplying the recombination frequency by 100 and expressing it in map units (MU).

To calculate the recombination frequency we will use the next formula:

                 P = Recombinant number / Total of individuals.

We know that

Recombinant number = 36Parental number = 64Total number of individuals = 36 + 64 = 100 individuals

So now, all we need to do is to replace the terms by their values

P = Recombinant number / Total of individuals

P = 36 / 100

P = 0.36 ⇒ Recombination frequency

Now we need to get the distance between genes, expressed in Map Units.

P = 0.36

Distance in MU = P x 100 = 0.36 x 100 = 36 MU.

So, 36 MU separates the two loci.

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The ability to have an advantage in obtaining mates by having bigger antlers in deer or bigger showy tails in peacocks, for example is an example of

Answers

Answer:

The correct answer is - intrasexual selection.

Explanation:

Intrasexual selection is the act of competing with other members of one's own sex for various reasons such as high status, mating, area, and many more as well as the evolutionary process responsible for this competition. The great examples of these are antlers of deers and big size showy feathers of the peacocks to attract their males.

Thus, the correct answer is - intrasexual selection.

According to a recent survey, the tiger is the world's favorite animal. Besides their natural beauty, what else about tigers amazes us? Tigers are some of the most powerful hunters in the animal world. They are the largest animal in the cat family. They can weigh more than 600 pounds and measure as long as 11 feet. They are not only strong but also light-footed and agile. They can easily jump long distances when hunting prey. Tigers can even jump as high as 16 feet in the air! They have extremely powerful jaws. A tiger is strong enough to kill a lion, a bear, or even an elephant.

Answers

Hi there, what's the question ?

SODO
What terms applies to a period in
evolutionary history when a species shows
little or no change?

Answers

Answer:

Punctuated equilibrium

Explanation:

The idea of "punctuated equilibrium" suggests that species will show little to no evolutionary change throughout their history. When evolution does occur, according to this idea, it happens sporadically and relatively quickly compared to the species' full duration on Earth.

What can you tell about an igneous rock that has a coarse-texture?
A. It is a carbonate.
B. It probably formed in a volcanic eruption.
C. It is most likely formed underground.
D. It is extrusive.

Answers

Answer: It is most likely formed underground

An igneous rock that has a coarse texture is one that formed from slowly cooling magma deep within the Earth's crust, or from slowly cooling lava on the surface. The slow cooling allows large mineral crystals to grow, giving the rock a coarse, grainy texture.

What can the size and shape determine ?

The size and shape of the mineral crystals within the rock can provide information about the rock's cooling history and the conditions under which it formed. Coarse-grained igneous rocks such as granite, gabbro, and diorite typically have crystals that are visible to the open eye, with sizes ranging from a few millimeters to several centimeters in diameter.

The composition of the rock can also be determined based on the types of minerals present in the coarse-grained texture. For example, if the rock contains primarily feldspar and quartz, it is likely a granite. If it contains mainly plagioclase feldspar and pyroxene, it is likely a gabbro.

Overall, the coarse texture of an igneous rock indicates that it cooled slowly over a long period, allowing mineral crystals to grow and form a visible grain structure. The size and composition of the crystals can provide clues about the rock's history and origin.

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*see image attached* could anyone answer this biology question?

Answers

Answer:

c. 360ml

Explanation:

first find the ratio.

90/25=3.6

100*3.6=360ml

Describe the digestive system in human body!​

Answers

[tex] \green{\huge{\red{\boxed{\green{\mathfrak{QUESTION}}}}}} [/tex]

Describe the digestive system in human body

[tex] \huge\green{\boxed{\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}}}[/tex]

ᴅɪɢᴇꜱᴛɪᴏɴ ɪɴ ʜᴜᴍᴀɴꜱ ᴏᴄᴄᴜʀ ᴛʜʀᴏᴜɢʜ ᴅɪꜰꜰᴇʀᴇɴᴛ ꜱᴛᴀɢᴇꜱ-

[tex]{\bf{Ingestion:}}[/tex]: It is the process of taking in food.It involves taking in food through the mouth and eating it.

[tex]{\bf{Digestion:}}[/tex]: It is the breakdown of food into simpler, soluble form with the help of digestive juices made in the body.

[tex]{\bf{Absorption:}}[/tex]: In absorption, food in the soluble form passes into the body fluids such as blood.

[tex]{\bf{Assimilation:}}[/tex]: Assimilation is the process by which absorbed nutrients are utilized by the body.

[tex]{\bf{Egestion:}}[/tex]: It is the process of elimination of undigested solid parts of the food.

______________________________________

~~~~~~~~~~ᴅɪɢᴇꜱᴛɪᴏɴ ɪɴ ᴛʜᴇ ᴍᴏᴜᴛʜ!

Food is taken in or [tex]\tt\bf\blue{ingested}[/tex] through the mouth.Digestion begins inside your mouth when you chew the food.

The water in your mouth is digestive juice called [tex]\tt\bf\blue{Saliva}[/tex]

 .

It is secreted by the three pairs of the [tex]\tt\bf\green{Salivary \: Glands}[/tex] in your mouth.

Chewing breaks down the food into small pieces and mixes it with saliva.This process is called [tex]\tt\bf\green{Mastification}[/tex]

______________________________________

~~~~~~~~ᴅɪɢᴇꜱᴛɪᴏɴ ɪɴ ᴛʜᴇ ꜱᴛᴏᴍᴀᴄʜ!

After the food is swallowed, it slides down the pharynx into the [tex]\tt\bf\purple{Oesophagus}[/tex]

(foodpipe).

The oesophagus leads from your mouth to the stomach.It is made up of muscles.

These muscles gently push food down to your stomach in a wave like action called [tex]\tt\bf\red{Peristalsis}[/tex]

______________________________________

ᴀʙꜱᴏʀᴩᴛɪᴏɴ ɪɴ ᴛʜᴇ ꜱᴍᴀʟʟ ɪɴᴛᴇꜱᴛɪɴᴇ!

The digested food is then absorbed by the small intestine. Absorption of the food occurs through thousands of small finger-like projections in the inner wall of the small intestine.

These projections are known as [tex]\tt\bf\pink{Villi}[/tex] increse the surface area of absorption of digested food.

Each villus has a network of fine blood cappilaries close to the surface.

The food absorbed on the surface of the villus passes into the blood in tge cappilaries.

______________________________________

~~~~~~~~~~~~          ᴀꜱꜱɪᴍɪʟᴀᴛɪᴏɴ!

The food absorbed into the blood is transported to different parts of the body.It is used to provide energy and materials for growth and repair of the body tissues.This is the final stage of digestion and is known as [tex]\tt\bf\red{Assimilation}[/tex]

______________________________________

~~~~~~~~~~~~             ᴇɢᴇꜱᴛɪᴏɴ!

Not all the food you eat is digeated & absorbed.The food that cannot be digested moves from the small intestine into a wide tube called the [tex]\tt\bf\green{Large \: Intestine}[/tex]

The waste food is now almost solid is stored in the last part of the large intestine called the [tex]\tt\bf\green {Spectrum}[/tex]

It then passes away from the body through [tex]\tt\bf\green{Anus}[/tex]

______________________________________

[tex] \red \star{Thanks \: And \: Brainlist} \blue\star \\ \green\star If \: U \: Liked \: My \: Answer \purple \star[/tex]

Explain the evolution of altruism.

Answers

Answer:

Altruistic behavior, such as sterile worker ants caring for the offspring of their queen, evolves only between related individuals through what is known as kin selection — or so many evolutionary biologists have thought since the 1960s.

What will happen if RNA polymerase fails to attach to the promoter?

Translation will begin early.
Transcription will not begin.
RNA polymerase will unwind DNA strands.
An mRNA strand will be made before translation begins.

Answers

Answer:

hey hi mate

your answer is transcription will not begin

hope u like it

plz mark it as brainliest

Answer: the answer is b. Transcription will not begin.

Explanation:

6. The title of this text is "Why Do Cave Fish Lose Their Eyes?" Why might the author
have written the title as a question?
A. to encourage readers to answer the question on their own before they read the article
B. to prepare readers for a discussion of possible answers to this question in the article
C. to criticize scientists for not having reached a definite answer about why cave fishes
lose their eyes
D. to praise scientists for the effort they have put into understanding the cause of
blindness in cave fishes

Answers

B.to prepare learners for a discussion of a possible answers to this question

The function of thick mucus in the stomach is to Group of answer choices promote fat digestion. activate stomach enzymes. protect stomach cells from acid and enzymes. keep the stomach bacteria-free.

Answers

Answer:

protect stomach cells from acid and enzymes.

Explanation:

This prevents peptic ulcers.

The ___________ can be found as part of the epithalamus, near the superior colliculi of the midbrain.

Answers

Answer:

The answer is, pineal gland

Explanation:

I hope this helps you out!

Which statement best describes how a catalyst can speed up a chemical reaction?
a. The catalyst decreases the activation energy needed.
b. The catalyst increases the concentration of products.
c. The catalyst binds to enzymes to release substrates.
d. The catalyst increases the concentration of reactants.

Answers

D. The catalyst increases the concentration of reactants.

Answer:

D. The catalyst increases the concentration of reactants.

Explanation:

is this right? [extra characters]​

Answers

Answer:

i think you forgot something hun

Explanation:

what is circulatory system?​

Answers

Answer:

the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.

Explanation:

A process that completely removes or destroys all viable microorganisms, including viruses, from an object or habitat is referred to as disinfection

Answers

Answer:

A process that completely removes or destroys all viable microorganisms, including viruses, from an object or habitat is referred to as disinfection

Answer

yes, this is referred as disinfection.

The structural integrity of bacteria is to peptidoglycan as the structural integrity of plant spores is to

Answers

Answer:

Lignin.

Explanation:

The structural integrity of plant spores is lignin that is present in many parts of the plant. This lignin provides hardness to the plant body which help them to stand the plant erect. If this lignin is not present in the plant body the plant will not stand erected. This lignin is present in large amount in the stem of plant body so that's why the lignin provides structural integrity to plant spores

Which weathering process involves physical forces but not chemical
reactions or dissolving of minerals?

Answers

Answer:

Mechanical weathering, also called physical weathering, breaks rock into smaller pieces. These smaller pieces are just like the bigger rock, just smaller. That means the rock has changed physically without changing its composition.

Explanation:

GIVE BRAINLIST

What is the name of the enzyme used in both cellular respiration and photosynthesis to stick a phosphate to ADP to make ATP

Answers

Answer:

ATP synthase

Explanation:

In both cellular respiration and photosynthesis, the enzyme ATP synthase is utilized to help make ATP.

A person with curly hair has children with a person who has straight hair. All children in the F1 generation have wavy hair. What kind of inheritance pattern explains this phenomenon? What would the F2 generation look like, i.e., what would the genotype and phenotype ratios be if two wavy haired individuals had children

Answers

Answer:

The correct answer is -

a. incomplete dominance

b. f2 = 1:2:1 = straight:wavy:curly

Explanation:

In this question, it is given that a person with curly hair and a person with straight hair has all children with wavy hair. It means that the heterozygous offspring in F1 has blended traits which means this trait shows incomplete dominance. Suppose C is curly hair c is straight hair then f1 offspring will have Cc (wavy hair)

now in F2:

cross: Cc cross with Cc

gametes: C, c

Punnett square:

   C       c

C    CC    Cc

c    Cc     cc

Thus, the genotype and phenotype ration would be :

genotype: 1:2:1 = CC:Cc:cc

phenotype: 1:2:1 = straight:wavy:curly

Darwin’s finches evolved on an island. What is the main reason that islands often provide good examples of evolution?
They have many niches.
They have many organisms that live on them.
They allow for automatic biogeographic isolation.
They allow for many variations to exist in species.

Answers

Answer:   c)  They allow for automatic biogeographic isolation.

The main reason that islands often provide good examples of evolution that they allow for automatic biogeographic isolation. The correct option is C.

What is evolution?

Transition in the heritable traits of biological communities over time is referred to as evolution.

These traits are gene expressions that are passed down from parent to progeny during reproduction.

They have resulted in significant gains in standard of living, public welfare, wellness, and protection.

They have altered our perceptions of the universe and of ourselves in relationship to the world around us. One of the most fundamental concepts in modern science is biological evolution.

They are well-known for evolving different beaks that are suited to different food types, such as large seeds as well as invertebrates, enabling them to occupy different niches.

Thus, the correct option is C.

For more details regarding evolution, visit:

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Group of answer choices En un recipiente cerrado y rgido se introdujo una mezcla gaseosa a cierta temperatura y las presiones parciales de cada gas son: p(F2) = 2,00 atm, p(BrF) = 1,50 atm y p(BrF3) = 0,0150 atm. A la temperatura que se prepar la mezcla tiene lugar la reaccin representada por:BrF3 (g) BrF(g) + F2(g) Kp(T) = 64,0Elegir la afirmacin correcta.Seleccione una:Qp > Kp, por lo tanto, las presiones parciales de BrF(g) y F2(g) aumentan hasta alcanzar el equilibrio.Qp < Kp, por lo tanto, la presin parcial de BrF3(g) disminuye hasta alcanzar el equilibrio.Qp = Kp, por lo tanto, las presiones parciales de BrF3(g), BrF(g) y F2(g) no cambian.Qp < Kp, por lo tanto, las presiones parciales de BrF(g) y F2(g) disminuyen hasta alcanzar el equilibrio.Qp > Kp, por lo tanto, la presin parcial de BrF3(g) aumenta hasta alcanzar el equilibrio. Mrs. Chi is age 75 and enjoys a comfortable but not extremely high-income level. She wishes to enroll in a MA MSA plan that she heard about from her neighbor. She also wants to have prescription drug coverage since her doctor recently prescribed several expensive medications. Currently, she is enrolled in Original Medicare and a standalone Part D plan. How would you advise Mrs. Chi? 1. The first thing I saw in the morning was Henry's van parked in front of the museum. I didn't like it at all, as Henry____ away for another week or so. A. would have been B. would be C. was to be D. should be2. They ____their house yet. They only put it up sales yesterday.A. ought not to sellB. might not be sellingC. needn't have soldD. can't have sold How do the citizen influence a nation?