How does sugar leave the phloem?

Answers

Answer 1
The high turgor pressure drives movement of phloem sap by “bulk flow” from source to sink, where the sugars are rapidly removed from the phloem at the sink. Removal of the sugar increases the Ψs, which causes water to leave the phloem and return to the xylem, decreasing up

Related Questions

what is the mosquito average life's span​

Answers

It’s usually 7-8 days

modern example of the scientific revolution

Answers

Answer:

Explanation:

One example of the Scientific Revolution is the Copernican revolution; it is the move from geocentric to the heliocentric view of the solar system.

3 característica sostenibilidad energética

Answers

im hispanic but put it in english and then i could help you for sure i promise ill edit my answer and everything solo pongalo en ingles por favor

Water that is dense will float while water that is less dense will sink.
True or false ?

Answers

Answer:

If an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float.

This is False it will sink

two examples of heat energy​

Answers

Answer:

sun and electric heater

Explanation:

sun is the biggest source of heat energy

electric heater is also an example of heat energy as it warms us

1. A cup of fresh coffee is very hot because the water particles are vibrating very rapidly giving the coffee heat energy.

2. A fire is a chemical reaction that is releasing energy as bonds are being broken, this energy is felt as warm or hot and is a release of heat energy.

what is the answer pleaseeeee?????

Answers

Answer:

75% brown 25 % green....m

Identify one additional factor besides the plant seedlings and containers that should be held constant in this experiment.

Answers

Answer:

83hrhiddtifrd of r

Explanation:

hsejrndbhsuia b rb

What might happen if genetically modified deer mice with white fur where accidentally released into the wild population of mice? Explain what would happen to each population of mice, brown and
gray. Discuss how the addition of this genetic variation will affect the future generations of mice.

Answers

Answer:

They die.

Explanation:

If genetically modified deer mice with white fur were accidentally released into the wild population of mice, they will die and decrease in population because these genetically modified deer mice with white fur can't survive harsh conditions of the mice. Their colour also attract the predators at night so they catch these genetically modified deer mice with white fur and feed on them which automatically decrease its population.

What risk is most likely to happen when using wind as an energy source

Answers

Answer:

As with all energy supply options, wind energy can have adverse environmental impacts, including the potential to reduce, fragment, or degrade habitats for wildlife, fish, and plants. Furthermore, spinning turbine blades can pose a threat to flying wildlife like birds and bats.

The H substance is needed for the proper phenotypic expression of the A, B, and AB blood types in the ABO blood typing system in humans. Individuals who are recessive for the H substance (hh) will have a type O phenotype, even if they have the A and/or B alleles. Two individuals, each with type AB blood and heterozygous at the H locus have children. What is the probability they will have a child who is phenotypically type O?

Answers

Answer:

The correct answer is - 4/16.

Explanation:

In this question, it is stated that in ABO blood system the proper phenotypic expression of A, B, AB blood types needs H substance. If an individual has recessive for the H substance (hh) will have a type O phenotype.

The cross: ABHh and ABHh

gametes: two set of AH, BH, Ah, Bh

Punnett:

         AH         BH          Ah          Bh

AH    AAHH   ABHH     AAHh     ABHh

BH    ABHH   BBHH     ABHh     BBHh

Ah    AAHh    ABHh     AAhh      ABhh

Bh    ABHh    BBHh     ABhh      BBhh

As shown there is only 4 out of 16 offspring are recessive for H substance therefore, only 4/16 will have O blood group

Questions are in the attachments I’ll give a brainlist

Answers

cleavage

in cleavage there is division of cell without growth of cell

What are the non-living components of an ecosystem?

Answers

Answer:

- Abiotic factors refer to non-living physical and chemical elements in the ecosystem.

- Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere.

- Examples of abiotic factors are water, air, soil, sunlight, and minerals.

which best describe the sex chromosomes

Answers

where are the options for the question??

❗️❗️EARTH SCIENCE CLASS ❗️❗️Climate factors are the things that established and have changed the Earths climate for billions of years. Which one does include changing the amount of CO2 in our atmosphere

Answers

Answer:

Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay, or release gas), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement. Which this also adds to the temperature increase around the world due to our atmosphere keeping all of this CO2.

Plz im begging you for a answer, my teacher is checking my progress!!!!!!!!!!!!!!!!!!!!!!!!!

Anthropologists have concluded that modern day humans originated from the continent of Africa. Looking at the distribution of skin tones we now see all over the world today explain why this pattern is makes sense for what we see today.

MUST USE AND HIGHLIGHT THE FOLLOWING KEY TERMS: variation, direct sunlight, UV radiation, Vitamin D, folate (folic acid), equator, evolution, parents, offspring, Africa, survival, natural selection, genes, latitude, adapt/adaptation

Answers

Answer:

Variation

Ape like creatures where able

to survive in Africa because of survival of the fittest, which meant that only the ones who were able to adapt to the conditions were able to live

The graph below shows the amount of CO2 (carbon dioxide) in the atmosphere throughout Earth’s history.



Which of the following claims is supported by the evidence in this graph?

A
The amount of CO2 in the atmosphere is currently decreasing at an extremely fast rate.

B
High amounts of CO2 in the atmosphere correspond to cold periods in Earth’s history, called ice ages.

C
The amount of CO2 in the atmosphere in 2018 was significantly higher than any other time in the past 800,000 years.

D
The amount of CO2 in the atmosphere from 1800 to 2018 increased at a slower rate than at any other point in the past 800,000 years.

Answers

Explanation:

is there a graph to be shown

gametes are sperm and egg cells. True or false

Answers

Answer:

The correct answer is True

I’m pretty sure it’s correct but if someone could double check pls

Answers

Your answer is incorrect because for animal to to form meiosis they have to have inter reaction with each other. So it testes and ovaries

it would be testies and ovaries

Three potted plants were kept in a dark cupboard for two days before being used for an experiment. Each plant was then put under a bell jar under different conditions for six hours . Bell jar D contains a potted plant with a small cup of sodium hydroxide solution with light pointed towards it Bell jar E contains a potted plant with light pointed towards it Bell jar F contains a potted plant with aluminium foil on top of the bell jar with light pointed towards it a)explain why their was no starch in the leaves at the end of the two days in the cupboard b)what is the purpose of sodium hydroxide put under bell jar in D?

Answers

Answer:

a. There were starch in the leaves at the end of two days in the cupboard because there was no sunlight to provide the energy for photosynthesis in the dark cupboard. Also, any previously synthesized starch in the plant leaves were used by the plant for its own metabolic requirements during the period the plant was in the cupboard. Therefore, staying in the cupboard for two days destarched the leaves.

b. The purpose of sodium hydroxide put under bell jar in D is to remove any carbon dioxide that may be present under the bell jar. This is to demonstrate that even in the presence of sunlight, carbon dioxide is required for photosynthesis to occur in plants.

Explanation:

Photosythesis is the process by which green plants manufacture their food (carbohydrates which are stored as starch) in the presence of sunlight. The site of photosynthesis in plants is the leaves.

The experimental design is to study the conditions necessary for photosynthesis to occur. For photosynthesis to occur, there must be presence of sunlight, carbon dioxide and water. Carbon dioxide and water serve as the raw materials for photosynthesis while the energy required is provided by sunlight.

The answers to the observations from the experiment are given below :

a. There were starch in the leaves at the end of two days in the cupboard because there was no sunlight to provide the energy for photosynthesis in the dark cupboard. Also, any previously synthesized starch in the plant leaves were used by the plant for its own metabolic requirements during the period the plant was in the cupboard. Therefore, staying in the cupboard for two days destarched the leaves.

b. The purpose of sodium hydroxide put under bell jar in D is to remove any carbon dioxide that may be present under the bell jar. This is to demonstrate that even in the presence of sunlight, carbon dioxide is required for photosynthesis to occur in plants.

There are three complete tissue layers. b. Flatworms may be either free living or parasitic. c. Flatworms have a sac body plan, with only a mouth and no anus. d. Parasitic flatworms have a well-developed head with eyespots and nerves concentrated into a brain. e. Most planaria are found in marine environments, but some dwell in freshwater and moist terrestrial environments.

Answers

Complete question:

Which of the following statements is NOT correct about the flatworms?

A. There are three complete tissue layers.

B. Flatworms may be either free-living or parasitic.

C. Flatworms have a sac body plan, with only a mouth and no anus.

D. Parasitic flatworms have a well-developed head with eyespots and nerves concentrated into a brain.

E. Most planaria are found in marine environments, but some dwell in freshwater and moist terrestrial environments.

Answer:

D. Parasitic flatworms have a well-developed head with eyespots and nerves concentrated into a brain.

Explanation:

Flatworms are inferior organisms, meaning that they do not have nerves concentrated in a brain. Their nervous system is, in general, composed of nerve cords forming a net. The arrangement depends on each of the groups. They have one or more pairs of primitive eyes, which function is to find the light. These eyes cup-shaped and are composed of pigmentary cells.

Flatworms have bilateral symmetry. Their body is plane dorsoventrally and can be divided into two specular halves by the sagittal plane. This plane crosses through the body from the anterior extreme to the posterior extreme. The frontal plane divides the body into two different halves, the ventral one with the mouth and the dorsal one.

These organisms only have one opening in their bodies directed to the digestive system, which is the mouth.

Flatworms are aquatic and, most of them are marine animals, although there can be a few groups that inhabit freshwater. Some species might even be terrestrial. Most of them are free-living organisms, but there are also some parasitic forms.

Which molecule is used to tell tRNA which amino acid is needed?
A. rRNA

B. mRNA

C. siRNA

Answers

Answer:

B. mRNA

Explanation:

anticodon – a sequence of three nucleotides on a tRNA molecule that bond to a complementary sequence on an mRNA molecule. The anticodon sequence determines the amino acid that the tRNA carries.

Answer:

B. mRNA

Explanation:

The mRNA is used to tell tRNA which amino acid is needed.

Which of the following is a FALSE statement about fungi?
A. Fungi may be multicellular or unicellular

B. Fungi are heterotrophs

C. Fungi have a cell wall made of chitin

D. Fungi are autotrophs

Answers

Answer:

D. Fungi are autotrophs

Explanation:

Fungi are autotrophs is a FALSE statement about fungi. Fungi are heterotrophs.

which function in plant cells is comparable to an animal eating food?

Answers

Answer:

Chloroplasts absorbing solar energy for cellular activities.  I hope this helped :))

Explanation:

which will increase the rate of a chemical reaction ?
adding a catalyst
decreasing the pressure
decreasing the tempertaure
removing a catalyst

Answers

Answer:

adding a catalyst will increase the rate of a chemical reaction  

NO LINKS PLEASE

What is a major difference between the nitrogen and phosphorus cycles?

O A. Animals excrete only phosphorus-containing compounds to add to the cycle.

O B. Soil erosion removes only phosphorus from its cycle in terrestrial ecosystems.

O C. Only nitrogen is added to its cycle from fertilizers.

OD. Only nitrogen exists as a gas for part of the cycle.

Answers

Answer:

D

Explanation:

phosphorus is usually not shown in gas form

explique le phénomène d'effet de serre​

Answers

Answer:

mi no speak e de spanish

Explanation:

gay pride

Explain what happens to an animal cell when it removed from an organism and placed into distilled water

Answers

Answer:

I think it has to do with osmosis

Explanation:

Osmosis is the process of having water pass from a low concentration medium to a high concentration one, given that the barrier (membrane) is semi-permeable.

When a cell is placed into distilled water, hypertonic solution takes place.

A cell may contain many solutes so it is considered hypertonic when compared to distilled water which is hypotonic So in this case, when a cell is placed in distilled water, water moves from outside of the cell to the inside leading to swelling of the cell.

. Which of these is a response of cats to external stimuli?
A hairs on the back stand up when scared
B decreased heart rate when sleeping
C movement of waste into the bladder
D temperature increases during an infection

Answers

Answer:

A. hairs on the back stand up when scared

Explanation:

B and C are not responses to stimuli, and D is a response to internal stimuli

Answer:A (don’t mind me just trying to get my points up)

which process produce two genetically distinct haploid cells

Answers

Answer:  mitosis

Explanation:

PLS ANSWEr NOWWWWWWWWWWWWWWW

Answers

Answer:

The answer for the third picture I believe is decomposers

Answer:

I believe that it's the last answer

An ecosystem is when plants and animals interact with each other in a specific area.

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