Unicellular organisms include bacteria, protists, and yeast. For example, a paramecium is a slipper-shaped, unicellular organism found in pond water. It takes in food from the water and digests it in organelles known as food vacuoles. Nutrients from the food travel through the cytoplasm to the surrounding organelles, helping to keep the cell, and thus the organism, functioning. Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. In humans, cells differentiate early in development to become nerve cells, skin cells, muscle cells, blood cells, and other types of cells. One can easily observe the differences in these cells under a microscope. Their structure is related to their function, meaning each type of cell takes on a particular form in order to best serve its purpose. Nerve cells have appendages called dendrites and axons that connect with other nerve cells to move muscles, send signals to glands, or register sensory stimuli. Outer skin cells form flattened stacks that protect the body from the environment. Muscle cells are slender fibers that bundle together for muscle contraction. The cells of multicellular organisms may also look different according to the organelles needed inside of the cell. For example, muscle cells have more mitochondria than most other cells so that they can readily produce energy for movement; cells of the pancreas need to produce many proteins and have more ribosomes and rough endoplasmic reticula to meet this demand. Although all cells have organelles in common, the number and types of organelles present reveal how the cell functions.
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If there were no unicellular organisms available in the ecosystem then there will be no atmospheric nitrogen fixation and no recycling of organic matter into plant usable products.
Unicellular organisms are small single celled organisms that can be observed through microscope but not with naked eye. The unicellular organisms are bacteria, fungi, virus, and protists. If no unicellular organisms are present in the ecosystem then there will be no nitrogen fixation by the soil bacteria like Nostoc, Cyanobacteria, and others. Since, plants cannot utilize atmospheric nitrogen directly so these bacteria convert the atmospheric nitrogen into plant usable form that is ammonia. When no soil bacteria present in the soil ecosystem then the plants will not be able to grow as ammonia is a chief ingredient of many biomolecules in plants. If there will be no unicellular organisms then there will not be any decomposition process of the organic matter and the waste of dead animals, plants, and other living beings will not recycle into plant usable form this will limit plant growth and will also affect the natural cleaning mechanism of ecosystem. Only one cell can be considered an organism if it shows characteristics of an organism like food intake, respiration, reproduction, and growth.Hence, if there were no unicellular organisms available in the ecosystem then there will be no atmospheric nitrogen fixation and no recycling of organic matter into plant usable products.
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Does photosynthesis only occur during day time? Please explain if you answer my question!
Answer:
Photosynthesis happens during the day it needs the light.. Plants respire day and night.
Explanation:
photosynthesis only occurs during the day when there is sunlight.
What process completed division in a animal cell?
Answer: cytokinesis
Explanation:
In animal cells, cytokinesis is achieved when a contractile ring of the cell microtubules form a cleavage furrow that divides the cell membrane into half.
You decide to make strawberry banana popsicles. What change in state will need to occur
Answer:
solid to liquid to ice i think
Explanation:
Which statement is true of both the desert and tundra biomes? They both have –
very low temperatures.
very low temperatures.
four seasons.
four seasons.
very low precipitation
very low precipitation
high biodiversity.
Answer:
Very low precipitation
Explanation:
Answer
Very low precipitation
Explanation:
Active transport is when molecules move against the concentration gradient
True or False
Answer:
this is true (:
Explanation:
Answer:
true
Explanation:
The transport of specific particles down their concentration gradient through a membrane by carrier proteins is known as facilitated diffusion. ... Facilitated diffusion moves molecules and ions against their concentration gradient, while active transport moves molecules and ions down their concentration gradient.
Which of the following is not true about sound waves.
A. Sound waves travel through medium.
B. Sound waves are invisible.
C. Sound waves can move through water.
D. Sound waves can move through a vacuum.
Answer:
D. Sound waves can move through a vacuum.
Explanation:
Sound waves can move through a vacuum is an incorrect statement.
• Sound is a kind of energy produced by vibrations. These vibrations generate sound waves that move via the mediums like water, air, and wood.
• The sound waves are not visible as it is a form of energy, sound waves generate movement in the object, which continues till the particles run out of energy.
• A sound wave mediates its energy through particle interaction, and a sound wave cannot travel via a vacuum, this shows that sound is a mechanical wave.
Thus, sound waves cannot move through a vacuum. Option A is not true.
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A student noticed that a potato left on the counter had begun to sprout. She decided to cut the potato into chunks and plant them. What is true about the plants that grew from this method? (Pick two)
All the plants are genetically unique.
All the plants have identical genetic information.
The original potato regenerated into several plants.
The new potato plants are the product of asexual reproduction.
The new potato plants are the product of sexual reproduction.
Here is a cause: You look straight at a bright, shiny object when a beam of light bounces off of it. What is the effect?
The self-regulation of the internal environment of organisms or cells is called _____________.
Answer:
Homeostasis
Explanation:
O∵ 3 ∵O
Which point(s) in the water cycle below best illustrate(s) water changing to a gas, and which term(s) could describe it?
1; sublimation or evaporation
1 and 2; evaporation only
3; precipitation or transpiration
3 and 4; transpiration only
Answer:
1 and 2; evaporation only
Explanation:
4 explains water evaporating turning into gas which is one and 2
ILL MA K BRANLIEST!!
Answer:
Fungi
Explanation:
I just worked on this
Answer:
Fungi
Explanation:
I DONT UNDERSTAND GENOTYPES AND PHENOTYPES HELP
Answer:
Explanation:
Genotypes are the genetic makeup of an organism. Such as the alleles it possesses.
Phenotype is the physical or biochemical traits of an organism. In short their appearance.
I hope this helped!
Answer:
The sum of an organism's observable characteristics is their phenotype. A key difference between phenotype and genotype is that, whilst genotype is inherited from an organism's parents, the phenotype is not
Explanation:
hope that's what u were looking for
Describe how an electromagnetic wave carries energy from place to place. Your description should include the terms electric field, magnetic field, and perpendicular.
Answer:
In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels.
brainliest pls
Answer:
In electromagnetic waves, energy is carried through vibrations of electric fields and magnetic fields. The fields The vibration of electric fields is perpendicular to the vibration of magnetic fields and the vibration of electric and magnetic fields is perpendicular to the direction in which light travels.
Explanation:
Evaluate if knowing the type of the source of pollution helps make clean-up easier. Justify your opinion in 4-6 sentences and using at least 3 direct quotes from the article.
Knowing the source of pollution aids in clean-up because the nature of pollutants and how they are recycled differ, so knowing the type and amount of pollutants aids in pollution cleanup.
What is the significance of knowing the types of pollution?Knowing the source of pollution can make clean-up easier because it allows for targeted and effective removal of the pollutants as it identifies the specific source of the pollution rather than trying to address pollution throughout a wider area. It also helps in determining the most appropriate remediation technique to use, the cost of clean-up, etc.
Hence, knowing the source of pollution aids in clean-up because the nature of pollutants and how they are recycled differ, so knowing the type and amount of pollutants aids in pollution cleanup.
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I need structural and behavioral adaptations, can someone explain how I find some or give me examples?
Answer:
The animals find or create a family after the animals find family they find shelter and hunt for food. After the parents have babies they teach the young ones how to survive out in the wild in about 2 weeks after they are born.
I really hope this helps you
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What is the fluid found in the extracellular matrix that holds cells together as tissue and allows them to communicate with one another?
The fluid inside of the Extracellular Matrix is Extracellular Fluid. Extracellular Fluid is also called ECF. ECF is mostly tissue fluid. It is also made up of a large amount of intravascular fluid. The remaining smaller amount of ECF is transcellular fluid.
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In the diagram below, which of the following represents the products that should be shown in arrow "A"? *
1 point
Captionless Image
Oxygen + water
Glucose + oxygen
Carbon dioxide + water
Carbon dioxide + glucose
Explanation:
ydhkhfbnfbcufzncziiguv
Answer:
i am unsure the question here.
Explanation:
Which of the following lists the reactants (raw materials) needed for photosynthesis to occur? *
1 point
Carbon dioxide + water
Sunlight + glucose
Water + oxygen
Glucose + oxygen
Answer:
carbon dioxide and water
Explanation:
carbon dioxide and water are the raw materials needed to start the reaction. They are on the left side of the equation so that is how you know.
Hello everyone, can someone help me out? I am being a dummy again
Answer:
D
Explanation: We can not see every star with our necked eye. But we come close with the Hubble space telescope. So D is correct.
Which statement below best describes the connection between photosynthesis and respiration? *
1 point
Both have the same products.
Both have the same reactants.
Both require energy from the sun.
The products of one are the reactants of the other.
Find 4 similarities and 4 differences for each viruses and bacteria. I'm giving 20 points! Thanks❤️
.a i What does a food chain mean to you?
a. ii what is the difference between a prey and a predator?
b. i. Draw a food chain with 5 preys and 5 predators
ii. State what the producer, primary consumer, secondary consumer and the tertiary consumers are in any food chain.
2. State three reasons why people cut down trees and suggest three ways cutting down trees can be reduced.
3. What are the causes of air pollution.
4. What is acid rain?
b. What causes acid rain?
c. what forms does acid rain come?
c. State three effects of acid rain
d. State three ways we can solve acid rain problems.
5. What different ways can we reuse plastic containers
b. What is recycling?
c.How do we encourage people to recycle
Answer:
a.ii. A predetor is an animal that hunts or kills for food
A prey is the animal that the predetor hunts or kills for food
Explanation:
For example a rabbit is a prey because a fox (predetor) can hunt or kill it.
Answer:
a. You do this on your own
b. a prey is something that is hunted, a predator is a hunter.
b.i. not going to draw it but, here are some animals, cow, rooster, deer, rabbit, mouse, predators are cat, wolf, coyote, bobcat, leopard?
ii. Producers are always plants, primary consumers are grazers such as cows, secondary consumers are wolves, and tertiary consumers are snakes.
2.
a. For shelter
b. for paper
c. human in habitation/ construction
a.1Make shelters out of brick, or stones.
b.1 Make paper out of a mix of things, instead of mostly paper.
c.1 Make buildings taller, not longer, to preserve space, or, destroy old buildings and reuse the material!
3.
a. Acid rain is rain that is acid. Contains high levels of nitric and sulfuric acids.
b. Acid rain is caused by a chemical reaction which occurs when compounds like sulfur dioxide, and nitrogen oxides are released into the air!
c. Can appear in snow, fog, and tiny bits of material
Hope this helps!
Using the image in the previous question, calculate the amount of force that the truck applied to the car if the truck was accelerating at a rate of 5 m/s2
1. What formula would you use?
2. Calculate the force of the truck hitting the car, use the correct unit for force:
3. Which law of motion supports your answer?
Answer:1st law
Explanation:bc
pls help due soon: The graph below displays barometric pressure data collected over a 7-day period. When did a low pressure system move through the area?
Answer:
I think its A
Explanation:
I think that because its when the graph gets the lowest
PLEASE HELP ME NOW !!!!! When a tornado approaches, some organisms flee and some organisms take shelter; but other organisms are unable to do either. Which of the following organisms would be at the most risk if a tornado passed through its habitat?
Answer:fish bugs
Explanation:
Answer:
small animals
Why is it important to understand how different body systems interact when developing a training plan?
Answer:
Because some people cant handle as much as other peopl.
Explanation:
You could overrun somebody by pushing them to hard. But you would'nt know if they had asthma in their lungs that just happened. Or if the person had an unknow health complicagtion.
Joel claims that “Bright White Toothpaste” removes tooth enamel stains better than all other brands. Which of the following should be documented as evidence to support his claim?
1. The amount of toothpaste used
2. The shade of teeth before and after brushing
3. The type of toothbrush used to brush teeth
4. The size of tooth
The hairs on Xander’s arms just started lying flat against his skin. Which is most likely his internal body temperature? 35°C 36°C 37.5°C 38.5°C
what are 5 abiotic things in a forest that are a part of a food web? this is for science
Answer:
minerals, light, heat, rocks, water, temperature, and soil
Explanation:
Biotic factors are the living parts of the ecosystem, such as plants, animals, insects, fungi and bacteria. Abiotic factors are the non-living parts of the ecosystem, which influence the size and composition of the living parts: these are components like minerals, light, heat, rocks and water.
Answer:
Sunlight, Temperature, Wind, Water, Soil
Explanation:
You need sunlight for photosynthesis, you need temperature because if a ecosystem or forest is too cold, plants won't grow, if it's too hot, there won't be enough water. Wind because seeds would be transferred throughout. Water, obviously. Soil because nothing can grow without it!
A planet that has a solid, rocky surface. Terrestrial planets tend to be smaller than gas giants.
Answer: That is true
Explanation:
Answer:
True
Explanation:
Terrestrial planets tend to be smaller than gas giants.
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