How does a leaf protect itself from unwanted intruders like bacteria from getting in and stopping important reactants from going out?

Answers

Answer 1

Answer:

The cuticle layer on the outside of the leaf

Explanation:


Related Questions

omosexuality is seen only in humans. has been documented for only a few hundred years in only a few societies. likely reflects the input of a number of genes and environmental factors. is inherited from a mutation on the X chromosome. is only the result of environmental influences.

Answers

Answer:

Homosexuality likely reflects the input of a number of genes and environmental factors

Explanation:

Sexual orientation can be defined as the attraction that experiments an individual self-identified with a particular gender (either male or female) to other persons according to their sex, this orientation may be classified into three categories: heterosexual (attraction for people of opposite sex), homosexual (same-sex) and bisexual (either sex). In the last years, the mechanisms involved in sexual orientation have been subject to intense research. In this regard, the main part of the scientific community agrees that sexual orientation is the result of the complex interaction between genetic and environmental factors. This hypothesis is supported by the fact that genes whose expression is associated with particular human behaviors, including sexual orientation, have been recently identified and mapped. Moreover, it has been shown that environmental factors such as, for example, hormone exposure before birth (i.e., during fetal programming) may also determine sexual orientation.

Which description refers to fog? burns off when it gets dark extends up to 10 miles into the sky is found in areas near bodies of water forms when the ground warms at night after a cool, dry day

Answers

Answer:

forms when the ground warms at night after a cool, dry day

Explanation:

fog forms when the ground is cooler then the air around it

Answer:

[tex]\large \boxed{\mathrm{is \ found \ in \ areas \ near \ bodies \ of \ water}}[/tex]

Explanation:

Fog forms when water vapor condenses to tiny droplets of water. The moisture that creates fog is produced from nearby or at bodies of water.

dromedary, camel, alpaca, vicuña, guanaco, llama, which species are most similar to each other? what is this about?

Answers

Answer:

Alpaca and llama are the most similar

Explanation:

An alpaca is a mix of a donkey and llama so alpaca and llama are the most similar.

PLEASE ANSWER ASAP The diagram shows cross-cutting relationships among rocks. Which statement accurately describes the geologic features? D occurred after B. D occurred before A. A formed after the horizontal layer above was deposited. F formed before the horizontal layer above was deposited.

Answers

Answer:

A formed after the horizontal layer above was deposited.

Explanation:

In the given diagram following are the labeling for several ecologic features:

A - Folded rock strata

B - Large intrusion

C -  Erosion angular unconformity

D - Volcanic di.ke

E - even younger rock strata

F - normal fault

As, A represent folded rock strata and layered rocks or folded rocks are formed when particles settle from water and air horizontally over the rocks.

Hence, the correct statement is "A formed after the horizontal layer above was deposited".

Answer:

A formed after the horizontal layer above was deposited.

Explanation:

Got 100% on culmative exam.

What might an elevated ST segment of an ECG mean?
A. All of these
B. Cardiovascular disease
C. Impending heart attack
D. Hypertrophy

Answers

Answer:

C. Impending heart attack

The elevated ST segment of an ECG mean an impending heart attack. The correct option is C.

What is an EGC?

An electrocardiogram (ECG) is a simple test that can be utilized to check the rhythm and electrical activity of your heart. Sensors attached to the skin diagnose the electrical signals generated by your heart every time it beats.

ST-segment elevation generally signals that the involved coronary artery is completely blocked and that the heart muscle is dying.

Thus, the correct option is C.

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During meiosis, independent assortment determines which chromosomes a gamete inherits, while ____________ determines, within a chromosome, which material will come from the maternal and paternal version.

Answers

Answer:

Crossing over or recombination

Explanation:

Crossing over or genetic recombination is a stage in the late prophase of meiosis I where homologs lie close to each other in pairs to exchange chromosomal material creating new combination of genes as each homologs is derived from either the father or the mother.

This exchange determines the material to be inherited by the offspring producing genetic variation which males the offspring typically different from the parents (genetic variation).

While eating you should not laugh ar talk you may have heard this statement from your elders . Do you agree with this statement ? Give reasons for your answer

Answers

Answer:

One might believe that this statement has some truth to it. It is considered bad manners to talk while you are chewing your food. Let alone laughing (also a choking hazard). However it shouldn't be taken too seriously. Conversation on the dinner table can be fun while enjoying a meal with many other people. However conversation is done before taking a bite as talking with your mouth full is disrespectful to others and shows bad manners.

Explanation:

Some flowers are pollinated by wind or water. How do you think the petals of these flowers will be different from the petals on flowers pollinated by animals? How does cross pollination differ from self pollination?

Answers

for self pollination, pollen grains are transferred to the stigma of another plant on the same species while on cross pollination is transferred to the stigma of another plant on a different species of plant.

Which of these conclusions is most likely correct about the two pairs of atoms?

Answers

Answer:

D. Carbon and oxygen form covalent bonds but sodium and chlorine form ionic bonds

Explanation:

Chemical bonds form between the atoms of elements. The types of chemical bondings that form are: covalent bond, ionic bond and more. Covalent bonds are bonds formed when atoms share valence electrons rather than transfer it. The shared bonding is in such a way that the outermost shell of both atoms are filled. This is the case of carbon and oxygen atoms in the diagram.

On the other hand, ionic bonding involves the transfer of electrons from one atom to another in order to form electrically charged ions that are bound to one another. This is the case of sodium atom, which has one valence electron in its outermost shell and transfers it to chlorine atom, which has seven electrons in its outermost shell. The sodium atom becomes a positively charged ion (+1) while the chlorine atom becomes negatively charged (-1).

After about two minutes of exercise, muscles require oxygen to continuously produce energy. Carbon dioxide is a byproduct of energy production and must be removed from the muscles to maintain homeostasis.

Answers

Answer:

When exhaling and inhaling, respiratory homeostasis occurs, exchanging gases at the level of the pulmonary alveolus.

This process is in charge of removing carbon dioxide from the muscles and their subsequent oxygenation.

Explanation:

Hemoglobin is in charge of associating carbon dioxide and delivering oxygen to the muscle that suffered physical activity.

Excess carbon dioxide is pathological, causing muscle acidosis in the muscle and even its possible denaturation since it is highly contained by proteins.

Before you begin your lab, write a hypothesis that reflects how you think temperature of the water will affect the
reaction rates. Record your hypothesis as an "if, then" statement.

Answers

Answer:

The temperature of the water has important  role in the  reaction rates.

A hypothesis is a prediction made before any experiment or study that shows  relationship between a dependent variable and independent variable.

A hypothesis before begin a lab is "If the temperature of water will rise, then the rate of reaction will be high".

Ms.Caroll went to the doctors office with pain in her right shoulder blade and learned she was having a gallbladder attack. Youre not surprised to hear about that unusual location of her pain since its known as _____.
A- Chronic pain
B- Referred pain
C- Receptive field
D- Phantom limb pain

Answers

Answer:

B. Referred pain

Explanation:

Referred pain is when pain in one part of your body is caused by pain in another part of your body.

The pain that Ms. Caroll is experiencing in her gallbladder is causing her to experience pain in her right shoulder blade.

Also, when the gallbladder is inflamed and swollen, it irritates the phrenic nerve which runs from the abdomen, through the chest, and into the neck. This causes pain in the right shoulder blade.

Hope this helps.

what is function of ammeter and voltmeter​

Answers

Answer:

An ammeter is a measuring device used to measure the electric current in a circuit. A voltmeter is connected in parallel with a device to measure its voltage, while an ammeter is connected in series with a device to measure its current.

Explanation:

i just did it

Answer:An ammeter is a measuring device used to measure the electric current in a circuit. A voltmeter is connected in parallel with a device to measure its voltage, while an ammeter is connected in series with a device to measure its current.

Which activity does a local health department perform when providing health and environmental services?

Answers

Answer:

Explanation:

Local health department links up patient with adequate health care needed especially area where good health facilities is reduces and cannot be access, they prevent spread of disease by given immunizations.

They also help in avoiding spread of diseases and infections by working with other health agencies to create awareness.

In the environment, some of them ensure access to to good and clean water, they develop plans when emergency cases arises and during disaster.

Answer:

C

Explanation:

The local health departments make sure that the community's health is thoroughly assessed, thus, it is their role to oversee the day-to-day health issues in a country. For example, if there's an infectious disease, they prevent its spread by mandating some policies or protocols that people should follow. It is also their duty to respond to emergency situations that affect the health of the local people.

In order to convert prairie grass to bioethanol, what is needed after breaking down cellulose to simple sugars?
A. fermentation
B. cellulase
C. amylase
D. protease

Answers

Answer:

fermentation

Explanation:

When you ferment there will be chemical break down of the substance

what do scientist need to look at before devleping an argument

Answers

Answer:

Because they are genuis

Explanation:

Chemicals used in chemotherapy treatments to fight cancer can also harm cells in hair follicles and bone marrow. What characteristic do these cells most likely share with cancerous cells? A) They form tumors. B) They spread through the blood. C) They divide rapidly. D) They contain a mutation.

Answers

Answer:

c

Explanation:


How does an amoeba reproduce?

Answers

Answer:An amoeba uses asexual reproduction to reproduce using a process of binary fission.

Answer:

Most amoebas reproduce aesexually through mitosis. However, some are capable of reproducing meiotically (sexual reproduction)

Explanation:

Review the numbered items below. Then, decide which of the following lists the correct steps of translation in the correct chronological order.
I. UGA codon is identified.
II. DNA is unwound to expose a single template strand.
III. tRNA molecules carrying various amino acids bond to mRNA based on the sequence of mRNA codons.
IV. mRNA arrives at the ribosome
V. Introns are snipped out of an mRNA molecule.
V. tRNA, carrying methionine amino acid, bind to mRNA.

Answers

Answer:

IV, VI, III, I

Explanation:

Translation is the process of synthesis of protein from with the help of messenger RNA (mRNA).

The process of translation include initiation, elongation and termination.

Initiation: In this step mRNA binds to ribososomes and tRNA, carrying start codon or methionine binds to mRNA.Elongation: In this step, the tRNA molecules carrying several amino acid bind to mRNA based on the sequence of mRNA codon and then moves (translocates) to the next mRNA codon which leads to amino acid chain.Termination: At the end, when a stop codon (UGA) identified, polypeptide is released.

So, the correct chronological order is IV, VI, III, I.

Mouse coat color (white or brown) is determined by genes in the main genome. If a somatic nucleus from a white mouse skin cell was inserted into a brown mouse egg cell (with its nucleus removed), what color would you expect in the cloned mouse?

Answers

The mouse will have the nuclear genetic material of the white mouse's somatic cell, therefore it's expected for the cloned mouse to be white.

_________is severe pain and constriction about the heart, usually radiating to the left shoulder and down the left arm and creating the feeling of pressure in the anterior chest.

Answers

Answer:

Heart attack

Explanation:

Heart attack is the death of a part of heart muscles and severe pain that causes heart constriction having pain in the chest which spread to the left shoulder and down the arm thereby causing the feeling of pressure in the chest.

This is caused when a blood clots blocks blood flow to the heart thereby leading makes the tissue to loss oxygen and die.

The symptom of heart attack are;

pain in the chest, neck, back or arms, fatigue, lightheadedness, abnormal heartbeat and anxiety, nausea.

Treatment ranges from surgery, medication , rehabilitation e.t.c.

Cellular respiration converts the reactants' oxygen and glucose into carbon dioxide, water, and energy. The reverse reaction of photosynthesis converts reactants of carbon dioxide and water into oxygen and glucose. These two reactions are part of which biogeochemical cycle?

Answers

Answer:

Photosynthesis and Cellular respiration take place in the carbon cycle

Explanation:

One of 4 biogeochemical cycles

carbon cycle

Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration.

Photosynthesis removes carbon dioxide from the atmosphere, while cellular respiration releases it into the environment. Cellular respiration and photosynthesis are significant carbon cycle processes. The carbon cycle refers to the procedures used to recycle carbon in the biosphere.

What cellular respiration in biogeochemical cycle?

The exchange of carbon between the biosphere, geosphere, hydrosphere, atmosphere, and pedosphere occurs in one of the biogeochemical cycles. Photosynthesis occurs when carbon dioxide and sunshine are combined in green plants.

Therefore, living beings release carbon into the atmosphere. You emit carbon dioxide (CO2) into the atmosphere with each exhalation. Through a process known as respiration, organisms such as animals and plants must expel carbon dioxide gas.

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During interphase, how does a cell prepare for division? Describe cell division, including the processes of mitosis and cytokinesis. Be sure to describe the mitotic steps.

Answers

Answer:

During interphase, the cell copies its DNA in preparation for mitosis. Interphase is the 'daily living' or metabolic phase of the cell, in which the cell obtains nutrients and metabolizes them, grows, reads its DNA, and conducts other "normal" cell functions.

Explanation:

Which is required for sexual reproduction?
A) mitosis
B) binary fission
C) diploid cell production
D) meiosis

Answers

Answer:

D) meiosis

Explanation:

Basically, meiosis is required for sexual reproduction.

Which of these best describe a common impact of adolescent pregnancy?

Answers

Answer:

Disruption of education for the mother

Explanation:

because it’s the most likely option. Realistically speaking, it’s much more likely for a teenage mother to receive the opposite effects mentioned in the other options.

You are viewing a blood vessel under the microscope. You see three distinct layers, one of which is a thick muscular layer. The layers are separated by extensive elastic tissue. What is this vessel most likely to be

Answers

Artery. Arteries are the vessels with the thickest walls since it needs to carry oxygen rich blood throughout the body that the heart pumps out.

Sickle cell disease provides an example for which principle of molecular genetics? A. A point mutation always causes a significant change in phenotype. B. A point mutation always causes a change to an amino acid sequence, which may affect phenotype. C. A significant change in phenotype may cause a genetic mutation. D. A change to one amino acid in a protein may cause a significant change in phenotype.

Answers

Answer:D. A change to one amino acid in a protein may cause a significant change in phenotype.

Sometimes when we do heavy exercise, anaerobic respiration takes place in our muscle cells. What is produced during this process? (a) Alcohol and lactic acid (b) Alcohol and CO2 (c) Lactic acid and CO2 (d) Lactic acid only

Answers

Answer:

alcohol and CO2

Explanation:

answer option b

Answer:

lactic acid and CO2

Explanation:

the equation for anaerobic respiration is:

C6H1206 → 2C3H6O3 + H2O + CO2 + ENERGY

glucose  →  lactic acid + water + carbon dioxide + small amount of energy

Fine-tune reabsorption of calcium ions occurs in which of the following regions? Group of answer choices proximal tubule loop of Henle early distal tubule late distal tubule and collecting duct

Answers

Answer:

Proximal tubule

Explanation:

Calcium is an important element in the body with majority of its percentage located in the bones. Its ions perform different functions in the body which includes muscle contraction, hormones secretion and including all other functions.

Calcium ion is absorbed in the intestines and then reabsorbed in the kidney. Much percentage of calcium ions is reabsorbed by passive mechanisms in the proximal convoluted tubule of the kidney tubule as compared to all other parts of the kidney tubule.

How are penicillin antibiotics are made?

Answers

Answer:

penicillin?

Explanation:

Answer:

Penicillium mold naturally produces the antibiotic penicillin. 2. Scientists learned to grow Penicillium mold in deep fermentation tanks by adding a kind of sugar and other ingredients. This process increased the growth of Penicillium.

Explanation:

Hey..... ngl thats kinda sus.......

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2/3 of 27 equal 25% of a number The Hermes spacecraft is traveling at 0.1c(1/10 the speed of light past Mars and shines a laser in front of the ship. You would see the light traveling at c (the speed of light )away from your ship. According to Einstein's special relativity how fast with a person on Mars observe the light to be traveling? Which two of the following numbers round to 752.3 if we're rounding to the nearest tenth? Choose 2 answers: a 752.32 b 752.27 c 752.36 The value of 3x+2 is 9 plus twice the value of x+5. What is x? Find the length ofPR While standing in front of the school A restaurant catered a party for 40 people. A childs dinner (c) cost $11 and an adults dinner (a) cost $20. The total cost of the dinner was $728. How many children and adults were at the party? Use the table to guess and check. 8 children and 32 adults 9 children and 31 adults 10 children and 30 adults 12 children and 28 adults "Manson Industries incurs unit costs of $8 ($5 variable and $3 fixed) in making an assembly part for its finished product. A supplier offers to make 12,400 of the assembly part at $6 per unit. If the offer is accepted, Manson will save all variable costs but no fixed costs. Prepare an analysis showing the total cost saving, if any, Manson will realize by buying the part. (Enter negative amounts using either a negative sign preceding the number e.g. -45 or parentheses e.g. (45).)" Johns bank statement shows a closing balance for a given month as $2,200 and his personal account register shows a closing balance for the same month as $2,050. John investigated his accounts to identify the following discrepancies: Bank charges of $200 were charged. There were checks of $200 that were not yet presented for payment. Deposits not yet credited totaled $300. $450 interest was credit to Johns account. By how much is Johns bank reconciled? Johns bank balance is reconciled at $____ Find the volume in cubic meters, of the 3-Dimensional compositefigure. 8m5m A cylinder at left with balls evenly spaced throughout the cylinder has an arrow leading to a cylinder at right cylinder with balls stacked near its bottom. How is energy related to the change of state represented by the model? Atoms gain energy as a gas changes to a solid. Atoms gain energy as a gas changes to a liquid. Atoms lose energy as a gas changes to a solid. Atoms lose energy as a gas changes to a liquid. what is a type of emigration where offspring moveaway from their parents. 20 2p>-2(p + 2) + 4p Solve and CHECK the following:8(5x2)=62(3x+1) Recall that Muzafer Sherif and his colleagues (1961) created conflict between two groups of boys in a summer camp. Once in-group cohesiveness was established, they set up a series of competitive situations such as tug-of-war and other competitive games. Conflict between the two groups escalated. This field study provided support for the ________ theory of prejudice. Because 10 is a multiple of 90 what is public administration according to the gullick The accepted value of the number of Liters of gas in a mole is 22.4. List two possible reasons on why our experiment yielded a different value for the number of Liters in a mole of a gas. Hint: Our experiment was conducted in July, in St. Paul, Minnesota. What is the volume of a cone when the radius is 6 and the height is 13 senator george f hoar argued that the united states should not annex territories because it was