Some protozoans have special organelles called contractile vacuoles that continually eliminate excess water from the cell. The presence of these organelles tells you that the environment Group of answer choices is hypotonic to the protozoan. contains a higher concentration of solutes than the protozoan. is isotonic to the protozoan. is hypertonic to the protozoan.

Answers

Answer 1

Answer:

is hypertonic to the protozoan.

Explanation:

The presence of contractile vacuoles tells us that the environment  is hypertonic to the protozoan that contains a higher concentration of solutes in the outside environment than the protozoan. The water moves outside the cell if its concentration is higher inside the cell so due to diffusion and no need of extra water, the water removes by the contractile vacuole to the outside environment so we can say that the environment is is hypertonic to the protozoan.


Related Questions

comparison mitosis meiosis purpose ? ? number of parent cells ? ?

Answers

Explanation:

mitosis has 1 stage and meiosis had 2 stages.

Mitosis produces diploid cells (46 chromosomes) and produces 2 identical daughter cellsMeiosis produces happiness cells (23 chromosomes) and produces 4 genetically different daughter cells

Answer:

Mitosis and meiosis are nuclear division processes that occur during cell division.

Mitosis involves the division of body cells, while meiosis involves the division of sex cells.

The division of a cell occurs once in mitosis but twice in meiosis.

Two daughter cells are produced after mitosis and cytoplasmic division, while four daughter cells are produced after meiosis.

Daughter cells resulting from mitosis are diploid (46 chromosomes), while those resulting from meiosis are haploid (23 chromosomes).

Daughter cells that are the product of mitosis are genetically identical. Daughter cells produced after meiosis are genetically diverse (genes swap during division).

Mitosis has 1 parent and meiosis produces 2 types of sex cells which fuse at fertilisation.

The diagram below shows a portion of the water cycle. The diagram shows the text 'Surface water' in a rectangular box, below it the text 'Groundwater' is in another rectangular box. In between the two boxes the text 'Infiltration' is beside an arrow point down, and the letter 'Y' is beside an arrow pointing up. What does Y most likely represent? well river ocean springs

Answers

Answer:

y most likely represents springs

Answer: Y represents springs

Explanation: This was on my test

When individuals migrate, alleles can be transfered from one population to another population. This commonly referred to as

Answers

Answer:

Gene flow.

Explanation:

When individuals migrate, alleles can be transferred from one population to another population which is known as gene flow. Gene flow is also called gene migration, the introduction of genetic material through interbreeding from one population of organisms to another which changes the composition of the gene pool of the migrated population of organisms. This gene flow creates a new species that is different from previous population of organisms

(06.01 MC)
When Linnaeus began classifying organisms in the 1700s, he categorized them as plant, animal, or mineral. These kingdoms were later revised to exclude minerals and expanded to include animals, plants, fungi, protists, and bacteria. Which of the following best explains a reason for this change? (2 points)

Group of answer choices

As new organisms were discovered, new kingdoms were created to sort them based on ability to interbreed.

It was discovered that the organisms in each of the five kingdoms have a different method of obtaining nutrients and are therefore fundamentally different.

Technological advances led to the discovery of single-celled organisms and increased our understanding of relationships between organisms.

Genetic research led to the discovery that each of these five kingdoms has a unique evolutionary ancestor.

Answers

7598023521998929939

Inside a skeletal muscle cell, a set of small cylinders called _______ are assembled into larger cylinders called _______.

Answers

Answer:

Myofibrils

Intercalated disc

Explanation:

Myofibrils in a skeletal muscle cell are a set of cylinders which are repeated form of sacromeres.

Intercalated discs are assembled into larger cylinders and are involved in cell to cell communications, they link cells to get her and transmit electrical impulses within the sacrolemma

Energy from the sun is called _______ energy.​

Answers

Answer:

Energy from the sun is called Solar Energy

Answer:

sunlight energy

Explanation:

also known as solar energy

Speech is a dynamic process requiring precisely coordinated articulatory movements for the sequencing of sounds to ultimately produce words. What is common among children with cerebral palsy

Answers

Answer:

Speech impairment

Explanation:

Cerebral palsy children suffers speech impairment and it is the inability to produce speech sounds and this may range from mild to severe. This can include an articulation disorder, fluency disorder and voice disorder.

fluency disorder is characterized by inability to pronounce a sound or repitition of a particular sound.

voice disorder is characterized by the production of abnormal pitch or volume.

Articulation disorder in the inability to articulate words, it could include stammering.

Importance of the water cycle

Answers

Answer:

because it ensure the availability of water for all livings, 95% of our world is covered with water but most of them are either forzen or under ground and also purifies water which can be ready for reuse.

Pls help! Pls help! Tap the image to see the picture. Do not spam or else I will report!
Raghavan has two identical plants. He plants one outside in the ground. The other is growing indoors without direct light. Raghavan predicts the weight of the carbon dioxide and water taken in by the plant and the oxygen given off by the plant.
Raghavan notices that a rabbit family has been eating the outdoor plant and that small insects are eating the indoor plant. He sees a fox hunting rabbit, but nothing is eating the insects.
The diagrams show Raghavan’s plants. Raghavan predicted the weight of carbon dioxide and water taken in by the plant. He predicted the weight of oxygen given off by the plant. What should he predict for the weight of the sugar the plant made?
A. 1.80 gram
B. 3.46 gram
C. 3.72 gram
D. 5.64 gram

Answers

Answer:

be honest, the correct answer is 1.80 gram

Explanation:

Help please!!!!!!!!!!!

Answers

Answer:

d

cause

Explanation:

Select which statements are a part of natural selection.

organisms better adapted to their environment tend to survive

organisms better adapted to their environment tend to reproduce and increase in number

organisms pass on their traits to succeeding generations.

over time, favorable traits become more common in a population

Answers

Answer:

organisms better adapted to their environment tend to reproduce and increase in number

Answer:   *organisms better adapted to their environment tend to survive

*organisms better adapted to their environment tend to reproduce and increase in number

*organisms pass on their traits to succeeding generations.

*over time, favorable traits become more common in a population

Explanation: all of them are correct :)

The water vascular system of echinoderms The water vascular system of echinoderms functions in locomotion and feeding. functions as a circulatory system that distributes nutrients to body cells. moves water through the animal's body during filter feeding. is bilateral in organization, even though the adult animal is not bilaterally symmetrical.

Answers

Answer:

The water vascular system of echinoderms functions in locomotion and feeding.

Explanation:

The water vascular system of echinoderms is responsible for the functions in locomotion and feeding. The water vascular system is a hydraulic system that is used by echinoderms for example sea stars and sea urchins, for the purpose of locomotion (movement), food and waste transportation, and respiration. This system is composed of canals connecting numerous tube feet.

The branch of life sciences which involves the structure and function of the brain and nervous system, including neurons, nerves, and nervous tissue is called

Answers

Answer:

Neuroscience.

Explanation:

Neuroscience is the branch of life sciences which involves the scientific study of structure and function of the brain and nervous system, including neurons, nerves, and nervous tissue. People who study neurosciences is known as neuroscientist. Neuroscientists focus on the human's brain and its impact on the behavior and cognitive functions. Not only is neuroscience concerned with the normal functioning of the nervous system but also concern with neurological, psychiatric and neurodevelopmental disorders.

What is a gene? ……………….

Answers

Answer:

2nd one is correct

Explanation:

Answer: B

Explanation:

Because the cells of skeletal muscle are relatively large and cylindrical in shape, they are also known as

Answers

Answer:

fibers or tubules.

Explanation:

A group of environmental activists in West Virginia wants to save a large forest. Which act will help them in this activity?

Answers

Answer:

The correct answer is - Eastern Wilderness Areas Act.

Explanation:

The Eastern Wilderness Act is an act to be which is thought one of America's greatest conservation achievements. This act heled in creating our National Wilderness Preservation System such as west Virginia forests from over ogging and destroying the forests. This act is mainly introduced to eastern region of the country in 1975 january. It is allowed in 13 states of eastern united states.

Thus, the correct answer is - Eastern Wilderness Areas Act.

Need help please …..

Answers

The answer is either a or c
D
Is the correct answer

Drag each label to the correct category.
Decide whether each statement describes mass or weight.
measured in newtons
measured in kilograms
does not change when
gravity changes
changes when gravity
changes
the amount of matter
in something
a gravitational force
Mass
Weight

Answers

Answer:

Weight: newtons, kilograms and changes when gravity changes

Mass: does not change when gravity changes, the amount of matter in something, and a gravitational force

Hope I get this right :)

Answer:

Weight is measured in Newtons, mass is measured in kilograms, mass does not change when gravity changes; weight does, mass is the amount of matter in an object, and weight is a gravitational force

Explanation:

Weight is measured in Newtons, mass is measured in kilograms, mass does not change when gravity changes; weight does, mass is the amount of matter in an object, and weight is a gravitational force

Earth’s continents are constantly in motion because they sit on top of gigantic plates which float on Earth’s mantle. Energy from the Earth’s core creates convection currents in the molten layer, and the currents move the plates. Over extremely long periods of time, this movement creates new _______.
a.
biomes
b.
plates
c.
atmospheric layers
d.
elements

Answers

Answer:

a. biomes

Explanation:

Ecology can be defined as the scientific study of the relationship between living organisms such as plants and animals in relation to their physical and biological environment.

An ecosystem can be defined as the natural living habitats of both living and non-living organisms, in which they interact with one another. Essential services such as plant pollination, water purification, nutrient cycling etc that are being provided by the ecosystem are really very vital, important and useful for the sustenance of life, both for humans and enhances social welfare.

Generally, the different continents on Earth are in a constant motion due to the fact that they're sitted on top of gigantic plates floating on Earth’s mantle.

Furthermore, the Earth’s core generate energy which also creates convection currents in the molten layer of the Earth, thereby, moving the plates.

Over an extremely long periods of time, the movement of these plates create new biomes.

In Ecology, a biome can be defined as a relatively distinct terrestrial region which is made up of animals, micrograms and plants, and it is typically characterized by similar environmental factors such as wind, relative humidity, rainfall, temperature, etc., irrespective (regardless) of where it occurs in the world.

There are five (5) main types of biomes and these are;

I. Forest.

II. Aquatic.

III. Desert.

IV. Grassland.

V. Tundra.

Answer:

A - Biomes

Explanation:

E2023

Which organism in the food web below is found in the first trophic level of the
ecosystem?

A. Fungus
B. Strangler fig
C. Fruit bat
D. Sloth

Answers

A fungus because all the other animals get energy from the plants

Fungus is the organism in the food web displayed in the image in the first trophic level of the ecosystem.

What is trophic level?

Trophic level is defined as the position of an organism in the food chain or food web.

The trophic level consists of organisms at different levels. The first trophic level is made up of producers that initiate the transfer of energy.

According to this question, an image showing a food web is given. The first trophic level in this food web is the fungus because it starts the energy transfer.

Learn more about trophic level at: https://brainly.com/question/13267084

Drag the tiles to the correct boxes to complete the pairs.
Match each scenario to the climatic factor that caused it.

Answers

Explanation:

A forest - Type of ground cover  

Mountaineers  - Elevation  

Coastal Florida - Proximity to the water body  

Countries - Latitude

yeah what that person said

Jenny's grandmother holds the newspaper at arm' length when reading it.  i. What is most likely the cause of this condition? ​

Answers

Answer:

her grandmother's arm is stronger than her armpit

Presbyopia is the gradual loss of your eyes' ability to focus on nearby objects. It's a natural, often annoying part of aging.

Presbyopia usually becomes noticeable in your early to mid-40s and continues to worsen until around age 65. You may become aware of presbyopia when you start holding books and newspapers at arm's length to be able to read them.

Use the cladogram about fish to answer the following questions.

Which of the following best describes the organism located at point B?

does not have jaws

has bones, but not jaws

has bones

has jaws, but not bones


Not all individuals in a population will survive to reproduce. Those that do, pass their
to their offspring.

Answers

Answer: D

Explanation:

it has Jews but not bones

A triplet of bases in a template strand of DNA is GAT. What would be the corresponding codon for mRNA?
СТА
CUA
CTU
CUA (This one is wrong)


I don't know why there are two CUAs, but if someone could please help. This is confusing for me. Please explain & no false answers. Thanks much in advance!

Answers

Answer:

CUA

Explanation:

Chances are your teacher accidentally put the same option twice and marked one of em incorrect. You infact selected the correct answer because CUA is correct.

DNA has 4 bases: ATGC (Apples on Trees = A - T, & Cows eat Grass = C-G)

RNA has 4 bases: AUGC  (RNA lacks the base T so A binds with U instead).

So for template strand GAT, the mRNA made from this codon has complimentary pairing based on RNA so G binds with C, A binds with U, and T binds with A.

A triplet of bases in a template strand of DNA is GAT, the corresponding codon for mRNA - CTU

DNA is a two-stranded molecule. Each strand is a polynucleotide composed of A (adenosine), T (thymidine), C (cytidine), and G (guanosine)  in a sequence.

Adenine always bonds with thymine, and guanine only bonds with cytosine. In RNA however, uracil is substituted for thymine instead. So, in transcription, adenine turns into thymine, and guanine turns into cytosine, and vice-versa.

Thus, A triplet of bases in a template strand of DNA is GAT, the corresponding codon for mRNA - CTU

Learn more about:

https://brainly.com/question/6612666

Why can't cellular respiration occur without photosynthesis? (2 points)
Photosynthesis produces carbon dioxide, which is used in cellular respiration.
Cellular respiration requires carbon dioxide, which is produced by photosynthesis
Photosynthesis produces ADP, which is used in cellular respiration.
Cellular respiration requires glucose, which is produced by photosynthesis.

Answers

Answer:

d

Explanation:

if masquiteos have babys in water then can the have babbies in fog

Answers

Maybe, mosquitoes lay eggs in still water like a in pail or bucket

Mosquitoes can lay eggs as long as they’re near a source of water or in water because the babies cannot survive without water

Pls help me pls this is due today

Answers

protein

Explanation:

beacause its ah. cd

Describe the path of light as it travels through a microscope.

Answers

It is very fast and almost as if u you can not see it

a) Arrange the seedless vascular plants, angiosperms, non-vascular plants and gymnosperms in order according to the complexity of their features.
b) Arrange the same groups in the order in which they appear in the fossil record.
c) Compare the order of your two lists. What is the pattern?

Answers

Answer:

Cover the classifiction of plant on the evolution of history of significant feature in plant Gymnosperm evolved to have seed but not have flowers me. in the other way evolved seeds vascular tissue.

________, a mammalian hormone that also acts as a neurotransmitter in the brain, is released during breast feeding and by contact and warmth.

Answers

Answer:

"Oxytocin " is the right answer.

Explanation:

The hormone which is utilized to treat the condition as well as enhance uterine movements or contract or reduce post-birth hemorrhage is determined as Oxytocin.Is therefore considered to have become a driving factor promoting attractiveness and governs all but the most important parts of the reproductive tract as well as birthing.
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