How did scientists prove that the food is transported through the phloem

Answers

Answer 1

Answer:

When a aphid is killing at the act of feeding then the body is carefull cut away but the proscis still inserted into the phloem then the food slowly exuded form cut end of the proboscis in the form of drops. These drops contain sugar and amino acids which means food is transported through phloem in plant.


Related Questions

PLEASE HELP!

A. What kind of weather is associated with a low-pressure area?

B. What happens to the air of the low pressure areas that leads to this type of weather?

Answers

Answer:

A.) Low-pressure systems are usually associated with clouds and precipitation that minimize temperature changes throughout the day

B.) The slightly inward moving air in low pressure causes air to converge and since it can’t move downward because of the surface, the air is forced upward, leading to condensation and precipitation

Explanation:

Which statement is true,please anwser i put more points


A, Individual genes are made of chromosomes

B, Most genes are made up of more than one DNA molecule

C, Some inherited traits influence more than one gene

D, Inherited traits develop because of the instructions in the gene

Answers

Answer:

I think B is right It can be wrong too

Answer: (D) Inherited traits influence more than one gene.

Explanation:

water quality specialist in South Dakota notices local streams in a region have high salinity levels. The inland streams are not connected to any wetland, only a local watershed from a mountain region. Map of the Midwest United States of America. From the top left, the state of North Dakota, South Dakota below it, Nebraska below that, and Kansas below Nebraska. From the top center, Minnesota, Iowa is below it, and Missouri is below Iowa. From the top right, Michigan, Wisconsin below it, and Illinois is below Wisconsin. Next to Illinois, below Lake Michigan, is Indiana. Next to Indiana, and below Lake Erie, is Ohio.. Which of the following is a possible source of the extra salt in the stream? Ocean upstream Lake downstream Nearby fracking Pump jack drills

Answers

A possible source of additional salt in the stream is the influence of the ocean upstream.

The map shows the course of the Mississippi River through the states of Minnesota, Wisconsin, Iowa, Illinois, and Missouri and its mouth in the Ocean.

According to this information, the salinity detected in South Dakota of the Mississippi River can be caused by the influence of the salty water of the Ocean against the current of the river.

Note: This question is incomplete because the map is missing. Here is the map.

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Answer: C. Nearby Franking

Explanation: Someone in the comments was helpful enough to say it but couldn't post it so yea, just passing it on but its right so thanks to them

All members of a species living in the same location are called a


population


genus


community


ecosystem

Answers

Answer:

population is the best answer

what specific type of tissue makes up the intervertebral discs

Answers

Answer:Fibrocartilage

Explanation:

Fibrocartilage

Detail:
It is the tough, very strong tissue found predominantly in the intervertebral disks and at the insertions of ligaments and tendons; it is similar to other fibrous tissues but contains cartilage ground substance and chondrocytes.

find out how fermented bean pastes are made and write about the biotechnology of this useful food​

Answers

Answer:

Altogether, this recipe takes about five days and is done in three stages: Soaking the beans for 1-2 days. Cooking the beans until soft, about 1-2 hours. Mixing with seasoning and lacto-bacilli and allowing to ferment for 3 more days.

Modern Biotechnology is helpful in enhancing taste, yield, shell life and nutritive values.

Explanation:

I HOPE ITS HELP YOU

Foods or beverages created through managed microbial growth and enzymatic conversion of food components are referred to as fermented foods.

What is biotechnology?

Biotechnology is the application of biology to the problem-solving and product-making processes. The most well-known application of biotechnology is the use of genetic engineering to produce therapeutic proteins and other medications.

Because the production of antimicrobial metabolites (such as organic acids, ethanol, and bacteriocins) lowers the danger of contamination with pathogenic bacteria, food fermentation has historically been used as a preservation technique.

Therefore, Foods or beverages created through managed microbial growth and enzymatic conversion of food components are referred to as fermented foods.

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whats one difference between the ways aristotle and theophrastos classified plants?

Answers

Answer:

Aristotle classified animals based on where they lived, while Linnaeus instead used an animal's morphology, evidence from both fossil records and living organisms.

the vestibular system relies on hair cells that are similar in structure and function to those found in the auditory system.

Answers

Answer:

There are five vestibular receptor organs in the inner ear: the utricle, the saccule, and three semicircular canals.

Explanation:

If the alleles of two different genes are present on the same chromosome, the closer they are to each other the more likely they are to ________________________________ during gamete production.

Answers

If two alleles of different genes are in close proximity with each other on the

same chromosome, they would most likely link during gamete production.

Meiosis is the type of cell division that takes place in gamete( sperm and egg cells) production. The alleles are responsible for the phenotype of an

organism.

When alleles are in close contact on the same chromosome they are most

likely to be linked together and transmitted as a single unit . These brings

about variation between parents and daughter cells in some features such

as color, height etc

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What processes have destroyed most of the remnants of earths earliest formation

Answers

Answer:

volcanic eruptions

Explanation:

Asexual and sexual reproduction in animals is similar in that both
a. increase genetic variation in offspring.
b. produce offspring that have double the amount of genetic information of the parent(s).
c. rely on parental chromosomes to mix in new ways.
d. generate offspring that carry parental genes.

Answers

Answer:

d generate offspring that carry parental genes

please help I'm stuck!!!​

Answers

Answer:

b is the answer predator

. A kidney cell is an example of which type of cell?
a. somatic cell
b. germ cell
c. sex cell
d. haploid cell

Answers

Answer:

A. Somatic cell

Have a good day!!!

Explanation:

Does human intervention affect small-scale ecosystems differently than large-scale ecosystems?

two pieces of information along with their sources

Answers

Answer: No

According to BBC, Human activities such as harvesting plants and hunting animals can unbalance the flows and cycles within those [SMALL SCALE ECOSYSTEMS ]ecosystems. Tree-felling may lead to soil erosion and a loss of habitat. Lack of shade and moisture in the soil can result in desertification.

According to National Geographic, Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

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how might differences in enzyme concentrations affect rates of photosynthesis and respiration?

Answers

Answer:

enzymes are biological catalysts which speed up the rate of biochemical reactions

Increasing the concentration of enzymes would speed up the rate of photosynthesis and respiration due to the fact that the enzyme substrate complex can occur on a much larger scale i.e. more enzymes would be able to bind with more substrates producing more Oxygen in the case of photosynthesis and more ATP in respiration

Decreasing the concentration of enzymes would have the opposite effects

The differences in enzyme concentrations affect rates of photosynthesis and respiration are process accelerators.

What enzymes are involved in photosynthesis?

Enzymes such as Rubisco, sedoheptulose-1,7-bisphosphatase, aldolase and transketolase dominate the control of photosynthesis. Reductive fixation of CO2 requires ATP and NADPH and their concentrations in the stroma increase when chloroplasts are illuminated.

The chemical reactions involved in photosynthesis are controlled by enzymes . The temperature increases the number of collisions increases, therefore the rate of photosynthesis increases. However, at high temperatures, enzymes are denatured and this will decrease the rate of photosynthesis.

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in the past century the concentration of carbon dioxide in the atmosphere has been increasing steadily describe an effect this might have on earths climate

Answers

Answer:

That is causing global warming. It is causing the sea level to rise and it is also making hurricane stronger.

Explanation:

The most common starting pathway for the breakdown of sugars is ___________________. a. respiration b. fermentation c. glycolysis d. anabolism

Answers

Answer:

respiration

Explanation:

The principle that we encode information together with its context is known as encoding a. transcription. b. priming. c. consolidation. d. specificity.

Answers

I think it’s A, sorry if it’s not correct. Transcription is usually for encoding information.

Describe why enzymes are important in all living organisms?

Answers

Answer:

Enzymes are important because they make the chemical reactions in cells happen quickly.

Enzymes, by speeding up biological reactions, ensure that all necessary activities in a cell can take place simultaneously and prevent one particular activity from overtaking the entire cell or organism. This is possible because enzymes allow chemicals to react more specifically with only certain substances rather than reacting indiscriminately with any number of different substances within cells.

The most famous example of this enzyme effect is when stomach acid reacts with pepsin that turns food into a liquid. The body then uses this liquid for absorption through the intestines where nutrients are then used throughout the body. It's important for people to have enough enzymes in order to digest their food fully however if

Explanation:

In angiosperm double fertilization, one sperm nucleus fertilizes the ______ to form the diploid ______, and a second sperm nucleus fuses with the two nuclei in the central cell of the embryo sac.

Answers

Answer:

one sperm fertilizes the egg cell, forming a diploid zygote

Explanation:

Hope it helped

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In angiosperm double fertilization, one sperm nucleus fertilizes the egg to form the diploid zygote, and a second sperm nucleus fuses with the two nuclei in the central cell of the embryo sac.

The egg is the female gamete in an angiosperm. It is a haploid cell that contains one set of chromosomes. The zygote is the fertilized egg. It is a diploid cell that contains two sets of chromosomes. The zygote will eventually develop into an embryo. The central cell is a cell in the embryo sac that contains two haploid nuclei.

Double fertilization is a unique feature of angiosperms. It is a type of fertilization in which two sperm nuclei fertilize two different cells in the embryo sac. The first sperm nucleus fertilizes the egg to form the zygote. The second sperm nucleus fuses with the two nuclei in the central cell to form a triploid cell. This triploid cell will eventually develop into the endosperm, which is a food reserve for the developing embryo.

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Why don't animal cells need chloroplasts? Question 4 options: Animals do not make their own food. Animal cells make their own chlorophyll. Animal cells collect sunlight another way. Animals use photosynthesis to make their own food.

Answers

Animals do not make their own food.

Animals don’t make their own food

Identify the muscle(s) that is/are primarily responsible for holding the head of the humerus in the glenoid cavity.

Answers

Answer:

the rotator cuff muscles I believe

During a biology lab you are asked to look at an animal and
a bacterial cell under a microscope and document what
components they both share in common. Which of the
following is NOT a feature that all cells have in common?

1.Dna
2.cell membrane
3.cell wall
4.cytoplasm

Answers

Answer:

2. Cell wall

Explanation:

animals and some other organisms don't have cell walls, unlike plants (which has cellulose cell walls), bacteria (which has murein or peptidoglycan cell walls), etc.

What is photosynthesis?​

Answers

Answer:

photosynthesis is the process in which plants convert light energy, carbon dioxide, and water to create glucose which it uses to feed itself and oxygen which is expelled into our atmosphere helping us breathe

Explanation:

What is the probability that a couple will have a type A child if the mother has Type
A blood and is heterozygous for the trait and the father has type AB blood?

Answers

Answer:

50%

Explanation:

To solve this, we'd need to use a Punnett square.  Since the mother has a heterozygous genotype and has an A-blood phenotype, we know that she is AO and the father is AB.

          A             B

A       AA           AB

O      AO           BO

According to this, the four possible blood types, with equal probability are: AA, AB, AO, and BO.  Both AA and AO genes will result in type-A blood, since A is dominant over O.  Therefore, there is a 2 in 4 (or 1 in 2, or 50%) chance of the child having type-A blood.

4.

Which process produces the greatest amount of ATP per glucose molecule metabolized?
respiration
c. fermentation
b. digestion
d. photosynthesis
A. Respiration

Answers

Explanation:

Explanation: The electron transport chain generates the most ATP out of all three major phases of cellular respiration. Glycolysis produces a net of 2 ATP per molecule of glucose.

Answer:

a

Explanation:

how will climate change affect the habitat distribution for the baltimore oriole?

Answers

Climate change has a great effect on the habitat distribution of Baltimore orioles bird.

Climate change will adversely affected the habitat distribution of Baltimore orioles because climate change causes heat waves, wildfires and intense downpours which is harmful for Baltimore orioles.

The climate changes will limit the populations of ranges of Baltimore oriole as well as changes the habitat. These Baltimore orioles moved to other places where the climate is favourable so we can conclude that climate change has a great effect on the habitat distribution of Baltimore orioles bird.

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Why does each offspring get 2 alleles for a trait?

Answers

During meiosis, chromosome pairs are split apart and distributed into cells called gametes. Each gamete contains a single copy of every chromosome, and each chromosome contains one allele for every gene. Therefore, each allele for a given gene is packaged into a separate gamete.

Help me with this please

Answers

Answer:

4.Red

5. gamma waves

5. Gamma waves

Explanation:

if you look at the visible light they label all the colors for you red is at the end closest to increasing wavelength

Which of the following structures of the respiratory system helps to prevent choking?

Answers

Answer:

b. is correct Epiglottis

Explanation: post protected

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