Plants like the stinging nettle seen here have sharp, needle-like hairs that inject a burning chemical into animals that touch the stems or leaves. These hairs are used for A) protection. B) reproduction. C) photosynthesis. D) attracting insects.

Answers

Answer 1

Answer:

A. Protection

Explanation:

These plants have this external protection system to protect them against being eaten by these animals.

In cases where these plants are approached to be eaten by these animals, these systems which in this case are these hairs tend to make an effort by discomforting the approaching animals.

The animals upon sensing this discomfort retreat from feasting on these plants which thus prolongs their lives and prevent them from being eaten by these animals


Related Questions


When the human body perceives internal and external stimuli, it responds to maintain a stable internal environment. Which is NOT an
example of thermoregulation in the human body?
es )
A)
sweating when hot
B)
shivering when cold
conserving adipose tissue
D)
dilation/constriction of blood vessels

Answers

Answer:conserving adipose tissue

Explanation:im taking the test nd thats the right anwser ‍♀️

What is the effect of temperature on ATP,NADPH, and sugars? Will the increase, decrease, or stay the same?

Answers

Answer:

1. ATP will increase

2. NADPH will increase

3. Sugar will decrease

Explanation:

Had the same problem

The effect of temperature on these molecules are ;

ATP will increase NADPH will also increase  while Sugars will decrease

ATP (  Adenosine triphosphate ) is the molecule in cells which stores energy in cells while transferring the energy needed within cells as well. When the temperature of a cell is raised above the required temperature this molecule will also increase in response.

NADPH is an electron donor which is found in organisms, it also provides the reducing power for certain reactions in the organism ( anabolic ) and the gathering of NADPH oxidase. increases as the temperature of the organism increases.

Hence we can conclude that as temperature increases , ATP will increase , NADPH will increase while Sugars will decrease.

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Percent error definition for biology.

Answers

Answer:

A measure of how innaccurate a measurement is, standardized to how large the measurement is. Found by the formula (measured value-actual value)/actual value*100%J

Explanation:

Simply a percentage, the definition of it is up above.

2. Salt in soil may affect plant growth.

Formal Hypothesis:

Answers

Answer:

if salt is present in the soil, then plants will not grow as tall

Explanation:

hypothesis' are just if ___ then ___ statements. it doesn't matter if it's correct, you just have to be confident. so, as long as you don't use probably, maybe, might, etc, and stick to the if __ then __ format, you should be good to go!

Salt affects everything

1)What is a trophic level?

2) explain how energy travels through food web ? your response must include the following terms:
Decomposer,producer, primary, consumer , 10%.

3)why is energy reduced at successive trophic levels?

Answers

1. The trophic level is something's position in the food chain/food web.

2. Energy travels through out the food chain because all the animals eat each other and take each other's energy. The decomposers are eaten, the producers are eaten, but the primary consumers get all the energy.

3. The energy decreases because each animal decomposes the energy a little, before getting eaten. By the time the food reaches the top of the web, the energy is barely left.

Hope this helps!

In the human body, is every organ a part of only one organ system? Or are some organs a part of two or more organ systems? A. Every organ is a part of only one organ system, which is necessary because organ systems work independently of one another. B. Every organ is a part of only one organ system, although organ systems often interact with one another. C. Some organs are a part of two or more organ systems. For example, the heart is a part of the circulatory and digestive systems. D.

Answers

C

[From ck12.org] "An organ can be part of more than one organ system. For example, the ovaries produce hormones, which makes them a part of the endocrine system; the ovaries also make eggs, which makes them a part of the reproductive system as well."

20 POINTS) how do the nucleus, ribosomes, endoplasmic reticulum, and the golgi apparatus all work together? write a sentence using all terms

Answers

Answer:

The nucleus produces ribosomes, which are a part of the rough endoplasmic reticulum, which is responsible for major protein synthesis. The smooth endoplasmic reticulum is also responsible for the synthesis of macromolecules- which are all packaged and transported for cell use through the golgi apparatus

Explanation:

In North America, many top predators, such as wolves, have been driven nearly to extinction. What effect do you think this has on their main prey, deer? Write your answer below, and discuss with your classmates.

Answers

Extinction refers to the elimination of species or groups of organisms due to human-made causes or natural events.

In North America, animals or predators such as wolves have been extinct that can affect the food chain and their prey.

The wolves in North America grew in number to such an extent that government and wildlife agencies developed the rules and regulations to hunt down and kill the wolves, which led them to near extinction.

Wolves feed or attack the deer and are a type of parasitism relationship. In this relationship, wolves are benefitted and deer are harmed.

The extinction of wolves will be led to an increase in the deer population, as deers are the prey and will have no fear from the wolves.

Thus, the deer population will increase in number.

To know more about extinction, refer to the following link:

https://brainly.com/question/11872946

Because the 17 and the 13 Cicada have different breeding seasons and experience temporal isolation, what will probably never happen between the different species?

Answers

Answer:

Mutations in the gene pool

Explanation:

Chap wanted to see if planting seeds deeper into the soil had an effect on plant height. He took ten containers and planted radish seeds at varying depths. He used the same type of soil, kept the plants in the same location, and gave them each 20 milliliters (mL) of water each day. Then, he measured the height of the sprouts every day for two weeks. What are the independent (test) and dependent (outcome) variables in Chap's experiment?

Answers

Answer:

Independent variable: Planting depths of seeds

Dependent variable: plant height

Explanation:

Independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring about a measurable response. In this experiment involving the planting of radish seeds at varying depths, the DEPTH AT WHICH THE SEEDS ARE PLANTED is the independent variable.

Dependent variable is the variable that is measured in an experiment. It is the variable that responds to the changes made to the independent variable. In this experiment, the HEIGHT of the radish plants measured is the dependent variable.

The atmosphere of both Mars and Venus is mostly _____
carbon dioxide
O carbon monoxide
O nitrogen
O oxygen

Answers

carbon monoxide is the correct answer
Carbon monoxide is the right answer

BRAINLIEST PLS HELP! Balance this equation and be sure to show your work. NaCl + H2O —→ Cl2 + NaOH + H2

Answers

Answer:

2NaCl + 2H2O —→ Cl2 + 2NaOH + H2

Work:

NaCl + H2O —→ Cl2 + NaOH + H2

Na-1                     Na-1

Cl-1                      Cl-2

H-2                      H-1+2

O-1                       O-1

2NaCl + 2H2O —→ Cl2 + 2NaOH + H2

Na-2                     Na-2

Cl-2                      Cl-2

H-4                       H-2+2

O-2                       O-2

Which two of the following correctly describe what a gene is?

A packet of genetic information that can be passed down from one generation to the next
A DNA molecule
The entire collection of genetic information in a given species
A section of DNA that provides instructions for building a specific protein
I'm not sure

Answers

Answer:

A section of DNA that provides instructions for building a specific protein and A packet of genetic information that can be passed down from one generation to the next

Explanation:

A DNA molecule is not a gene, it is a nucleotide. The entire collection of genetic information in a given species results isn't a gene although many genes comprise what is the genome.  Given that those two answers are not what genes are, the other two options are correct.

Which of the following adaptations enables deciduous trees to produce more food?
a.
thick bark
b.
stretching toward the sun
c.
leaf loss
d.
color change


im pretty sure its b, but im just making sure

Answers

Answer:

yes you are correct the answer would be "B"

Explanation:

i think it’s b stretching toward the sun

why is it important to understand the breakdown of water into its ions before learning about acidity

Answers

Acids and bases are important in living things because most enzymes can do their job only at a certain level of acidity. Cells secrete acids and bases to maintain the proper pH for enzymes to work. For example, every time you digest food, acids and bases are at work in your digestive system.

ASAP PLEASE!

Stomata are tiny openings found in plant leaves. Specialized cells known as guard cells surround the stomata and open and close the openings. When it is very hot, plants may close their stomata to prevent water loss. When plants close their stomata, what else is affected?
Group of answer choices

Plants cannot take in water from the air.

Plants cannot release glucose made in photosynthesis.

Plants cannot take in the carbon dioxide they need for photosynthesis.

Plants cannot take in the sunlight they need for photosynthesis.

Answers

Answer:

Plants cannot take in the carbon dioxide they need for photosynthesis.

i did the same exact question (As you can see) and it even says correct. theres the proof.

A single strand of DNA contains:

Answers

Answer:

A single strand of DNA is a polymer of nucleic acids joined covalently between the phosphate group of one and the deoxyribose sugar of the next to for a “backbone” from which the nitrogenous bases stick out. In its natural state, DNA has two strands wound around each other in a double helix.

Explanation:

Cytosine and adenine

today's midterms and I just want to say good luck to you all. (we're doomed)

Answers

Answer:

lol, good luck dude ur gonna need it.

In the test for protein, why would some tubes show a slight purple color while others show a dark purple color?

Answers

Answer:

protein:

1. What is the name of the reagent used to test for the presence of proteins? (1 point)

           Biuret reagent  

2. What color indicates the presence of protein in a solution when the reagent is added? (1 point)  

When Biuret is added, it would turn blue when it is negative but if it is positive then it would turn to a purplish to a dark purple. Showing that there is protein.

                   

3. Which substances tested were positive for protein? (2 points)

The ones that were tested positive were milk solution and 50% egg solution.

4. Describe in your own words what we should do if the test tube for di-water tested positive for protein. (2 points)

Since Di water is our negative control, we know that there would be no proteins but if it was tested positive. Then we should start the experiment all over again this time with new, clean equipment.

Cellular respiration uses one glucose molecule to produce a total of

A. 36 ATPs.

B.38 ATPs.

C. 2 ATPs.

D. 24 ATPs.

Answers

Cellular respiration uses one glucose molecule to produce a total of 38 ATPs (option B).

What is cellular respiration?

Cellular respiration is the process by which cells obtain chemical energy by the consumption of oxygen and the release of carbon dioxide.

Cellular respiration occurs in three processes namely;

Glycolysis; this is the cellular degradation of the simple sugar glucose to yield pyruvic acid, and ATP as an energy source.

Krebs cycle; this is a series of enzymatic reactions that occurs in all aerobic organisms; it involves the oxidative metabolism of acetyl units, and serves as the main source of cellular energy.

Electron transport chain; this is a series of electron transfer that results in the synthesis of large amount of energy.

In total, the overall process of cellular respiration results in the formation of 38ATPs.

Learn more about cellular respiration at: https://brainly.com/question/13721588

#SPJ1

Answer:

A. 36 ATPs.

Explanation:

took the test good luck! ;)

What is the climate like in the Yellowstone forest?​

Answers

Answer:

maybe it helps

Explanation:

Daytime temperatures are often around 70°F (25°C) and occasionally 80°F (30°C) at lower elevations. Nights are usually cool and temperatures may drop below freezing at higher elevations.

A mother and daughter are both talented pianist. Give an inherited trait and learned trait would lead to this similarity

Answers

Answer:

long fingers or slim hands i think would make sense for inherited trait and learned trait would be the mother teaching the daughter how to play piano

FIRST GETS BRAINLEIST!!

Answers

Answer:

Genetic variation is the difference in DNA among individuals or the differences between populations. There are multiple sources of genetic variation, including mutation and genetic recombination.

Explanation:

Explanation:

Genetic variation refers to diversity in gene frequencies. Genetic variation can refer to differences between individuals or to differences between populations. Mutation is the ultimate source of genetic variation, but mechanisms such as sexual reproduction and genetic drift contribute to it as well.

Should blue crab fishing in the Chesapeake Bay be banned?

Answers

(This is most likely an opinionated question but this is what I would say)

Blue crabs get their name from their blue-tinted claws and are very popular type of crab. Many people harvest these crabs for meat. The number of blue crabs has decreased in the Chesapeake Bay because of over- harvesting and changes to their habitat. (Then explain if you think it should be banned after knowing this information) if you don’t think it should be banned then you could talk about regulations and licensing for crab fishing, or if you think it should be banned you could explain the effects of habitat loss on the crabs.

(EASY 10 POINTS AND BRAINLEYEST)
Detailed information about the processes and tectonic plate interactions that are causing the volcanos to occur. Include an explanation of convection currents.

Answers

Answer:

Tectonic plates recurring over and over again cause a rupture in the Earth's crust. This agitates the magma in volcanoes, causing the volcano to erupt.

Explanation:

Answer:

These tectonic plates rest upon the convecting mantle, which causes them to move. The movements of these plates can account for noticeable geologic events such as earthquakes, volcanic eruptions, and more subtle yet sublime events, like the building of mountains.

Explanation:

Why is Earth's outer core hotter than Earth's oceanic crust? Earth's oceanic crust is denser than Earth's outer core is. Earth's oceanic crust has lava flowing from the mantle. Earth's outer core has a composition of solid iron and nickel. Earth's outer core is deeper within Earth than oceanic crust is.

Answers

Answer: Earth's outer core is deeper within Earth than oceanic crust is.

Explanation:

The Earths outer core is is known as the third layer of the Earth. It is the only layer of the earth which is liquid. and it is majorly constituting of made metals iron and nickel, as well as little constituents of other substances. The Earths outer core is responsible for magnetic field on earth. And it is hotter than the oceanic crust because it is deeper within the earth than the oceanic crust.

The core -outer core and inner core- compose the third and deepest layer of the Earth. The Earth's outer core is hotter than Earth's oceanic crust because the Earth's outer core is deeper within Earth than oceanic crust is.

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

The Earth is composed of three layers known as cortex, mantle, and core.

The outer layer is the cortex, while the core is the inner layer is the core, both of them composed mainly of iron and nickel.

The core can be divided into outer core and inner core.

Near the terrestrial core, the temperature might reach up to 3,500ºC, and solid materials in these areas melt and fuse.

When fusing, materials lose density, becoming lighter and ascending again to the surface, creating the ascending currents.

Differences in temperature and density produce convection currents. Warm  melted materials from the bottom are lighter and can ascend, while cold materials from the surface are denser, so they tend to descend.

Convective currents contribute to the plates' movements over the mantle and keep the surface warm, making life possible.

The heat produced in the core is responsible for the electromagnetic field.

The Earth's outer core is hotter than Earth's oceanic crust because the Earth's outer core is deeper within Earth than oceanic crust is.

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

You can learn more about the Earth core at

https://brainly.com/question/2062732

https://brainly.com/question/10112541

Which one can be broken down further and element or a compound?

Answers

Answer:

Elements are the simplest form of matter; cannot be broken down further by either physical or chemical means. Compounds are made up of two or more elements combined in definite quantities and in definite proportions by chemical bonds.

Explanation:

In which organelle does the food making process in plants take place?

Answers

ANSWER:

CHLOROPLAST

Explanation:

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

26. If there is a waxing gibbous moon on June 2, then when is the next waning gibbous phase?​

Answers

Answer:

June 30th or July 31st

Explanation:

a waxing gibbous moon occurs every 29.531 days

Make list of farm tool used in:

Land preparation
Cultivation
Plant propagation
Harvesting

Answers

Answer:

Land preparation:

This has to do with preparing the land in preparation for planting.

Farm tools used in land preparation include scrapers, ditchers, ploughs, levelers.

Cultivation:

This has to do with loosening the soil for farm use.

Farm tools used in Cultivation include: spade, shovel, rake, etc.

Plant propagation:

This is the act of growing new seeds, using different sources.

Examples of farm tools used in this operation include: propagation knife, hand pruner, sharpening stone, etc

Harvesting:

This is the process of collecting or gathering crops which were planted and have reached age of maturity.

Examples of farm tools used in this operation are hand sickle, darat, gandasa, etc.

The list of farm tools used for various uses include the following:

Land preparation-This involves preparing the land for planting. Examples of farm tools used include tractor, harrows, plough, levelers etc

Cultivation- This involves the process of preparing the soil for planting and crop cultivation. Examples of farm tools used in cultivation include spade, shovel, rake, etc.

Plant propagation- This involves different techniques which are used to grow crops using stems or leaves of plants. Examples of farm tools used include propagation knife, hand pruner, sharpening stone, etc

Harvesting- This involves the process of gathering planted crops which have reached maturity and ready for consumption and other uses. Examples of farm tools used include hand sickle, darat, gandasa, etc.

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