Answer:
water enters by osmosis, vacuole is used to pump out excess water.
Explanation:
Paramecia that live in freshwater would have contractile vacuole because they will need to get rid of excess water unlike those that live in salt water.
The vacuole primarily functions to get rid of excess water from the cell.
Freshwater is hypotonic to the cytosol of paramecia. Thus, water will always enter the paramecia cells by osmosis. If the excess water is not excreted from the cell, turgidity will result and the cell may burst.
On the other hand, salt water is likely hypertonic to paramecia cells. Thus, instead of having vacuoles for water excretion, a mechanism would have to be put in place so as not to lose too much water to the surrounding salt solution. In other words, a vacuole would be totally redundant in the hypertonic solution.
More on the contractile vacuole can be found here: https://brainly.com/question/13137778
This is hard. pls help. Write an equation for cellular respiration. Write an equation for photosynthesis. How are these two equations related?
Answer:
equation for cellular respiration: C6H12O6 + 6O2 + 6H2O → 12H2O + 6CO2
equation for photosynthesis:: 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
Plants make their own food by photosynthesis. During photosynthesis a plant takes in water, carbon dioxide and light energy, and gives out glucose and oxygen.
Explanation:
BRAINLIEST IF ANSWER QUICKLY
1. Identify a period of time when this population showed exponential growth? Explain how you know this.
2. At what point in time did the population reach its carrying capacity? Explain how you know this.
3. The population's actual growth (in red) often goes above and below the carrying capacity in a cycle, why do you think this happens?
Answer:
1. 1850
2. it stays on carrying capacity until, about 1835
3. because people are born in generations
Explanation:
1. because the overshoot line grows very quickly around 1850
2. simply an estimate to where i think it lines up
3. once one generation is born, the older one dies.
Answer:
1. Around 1850 is the period of time when the population showed exponential growth.
2. The population reached its carrying opacity technically around 1850 as well but it was much closer to the direct line at around 1870-1875.
3. I believe this happens because of sickness and people choosing to leave the area. (There are many other reasons I am sure you can come up with)
Explanation:
These are the answers that fit best! I a so sorry for taking so long! You should certainly give brainliest to someone else but still-
If you found this to be helpful please leave a thanks, and a rating!
If this answer is correct maybe you can mark my answer brainliest! I hope you do well on your assignment!
~Ace <3
The Punnett square below shows a cross between 2 pink flowers. What is a percentage that a pink flower will be produced? *
Answer:
50%
Explanation:
rr, rw, rw, ww
Need this for homework
1.What happens when fertilizer ends up in waterways?
2. Describe eutrophication.
3. What has happened at the mouth of the Mississippi River?
Fill in the blank.
Now from the top make it drop dass sum ____ now getta _____ ina mop
-Cardi & Megan
Answer:
wet a cat, bucket
Explanation:
the fact that these keep popping up
wet a/s/s pus/s/y
Bucket
Sarah the Cheetah ran a 100 meter dash in 5.95 seconds at the San Diego Zoo, setting a new world record for mammals. What was Sarah's speed in Meters per Second? (Just write the number, rounded to the nearest tenth, no units)
Answer:
16.3 Meters Per Second
Explanation:
To find out the speed, you need to simplify 100/5.95
To do this, you first round up to 6.
[tex]100/6=50/3=16.333333[/tex] meters per second
Rounded up, it is 16.3 Meters per Second
The Sarah's speed in Meters per Second was 16.3 m/s.
What is speed?Speed is defined as a measurement of the length of time it takes for an object to travel a certain distance. To increase your strength and begin running more quickly, do sprinting drills and exercises including box jumps, high knees, hill sprints, and other core workouts. Strengthening your entire body can also be accomplished by including some type of strength exercise on your off days. Speed is calculated as follows: speed = distance ÷ time. Knowing the units for distance and time is necessary to calculate the units for speed.
You must simplify 100/5.95 to determine the speed.
In order to do this, multiply by 6.
= 100 / 6
= 50 / 3
= 16.33 meters per second.
It is 16.3 meters per second when rounded up.
Thus, the Sarah's speed in Meters per Second was 16.3 m/s.
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Please help me this is the last question and I need to get it right please help me.
If John and Sam both push on a boulder with a force of 30N, but in opposite directions, what will happen to the boulder?
Question 4 options:
The boulder moves towards Sam
The boulder moves away from John and Sam
The boulder moves towards John
The boulder will not move.
The boulder will not move, because the net effect of the force is reduced if two people apply the same force to the object, hence option D is correct.
What is the effect of the force?Force is defined as applying strength or energy to applying on the object cause it creates motion. It is not in any object force is applied to the object by another person.
If John and Sam both push on a boulder with a force of 30N, having no effect on the boulder because they are applying the same force boulder but in opposite directions.
If any force is applied to the object but in the opposite direction, the net force is the difference between them, so it reduces the net force.
Therefore, the boulder will not move, due to the net force being reduced if the same force is applied to the object in the opposite direction.
Learn more about force, here:
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Which example is NOT an organism?
Question 1 options:
lung
mold
human
bacteria
Question 2 (3 points)
All living things are made of ______.
Question 2 options:
multicellular
organisms
cells
tissues
Question 3 (3 points)
To function on their own, what must unicellular organisms do?
Question 3 options:
make tissues
work with other cells
do all jobs for survival
perform a specialized task
Question 4 (3 points)
Which type of organism is ale to cause an infection or contagious disease?
Question 4 options:
animal
plant
bacteria
rose
Question 5 (3 points)
A fish laying hundreds of eggs is an example of _________.
Question 5 options:
maintaining structure
all of the answers are correct
obtaining energy
producing offspring
Question 6 (3 points)
What do we call the branch of science for classification of organisms?
Question 6 options:
Taxonomy
Chemistry
Physics
Biology
Question 7 (3 points)
What is an example of "maintaining structure"?
Question 7 options:
a cell dividing
eating an apple
catching a fish
healing a broken arm
Question 8 (3 points)
All successful organisms must be able to do what three things?
Question 8 options:
obtain energy, produce offspring, eat
obtain energy, eat, play video games
obtain energy, produce offspring, maintain their structure
maintain their structure, eat, build a home
Question 9 (3 points)
Which example is NOT a basic need of all organisms?
Question 9 options:
soil
appropriate enviornment
water
food
Question 10 (3 points)
What do all living things need?
Question 10 options:
energy, water, sunshine, and protection
water, parents, a place to live, and air
oxygen, an outer covering, parents, vitamins
food, water, air, and a place to live
Answer:
1: Mold 2: Cells 3: do all jobs 4: bacteria 5: producing offspring 6: Taxonomy 7: Healing a broken arm 8:obtain energy, produce offspring, maintain their structure 9: soil (I think) 10: food, water, air, and a place to live
Answer:
1. lung.
2. cells.
3. do all jobs for survival.
4. bacteria.
5. producing offspring.
6. Taxonomy.
7. a cell dividing.
8. obtain energy, produce offspring, and maintain their structure.
9. soil.
10. food, water, air, and a place to live.
Explanation:
1. all of the other options are organisms, while a lung is an organ.
2. All living things are made of cells
3. All unicellular organisms must be able to perform all the functions necessary for life. Meaning do all the jobs needed for survival.
4. Bacteria is the organism listed that is able to cause an infection or contagious disease.
5. A fish laying hundreds of eggs is an example of producing offspring. While it could also be an example of maintaining structure, a fish cannot obtain energy by laying eggs. So, the best answer is producing offspring.
6. Taxonomy's definition is the branch of science concerned with classification, especially of organisms; systematics.
7. a cell dividing is maintaining structure. After growth, cell division by mitosis allows for continual construction and repair of the organism. The primary concern of cell division is the maintenance of the original cell's genome. So, this is the best option for the question.
8. The second option is wrong, because not every organism plays video games. The 4th option is wrong, because not every organism builds their own home. And finally, the first option is incorrect, because plants do not physically eat they obtain their energy through photosynthesis. So, the correct option is the 3rd one.
9. Soil is not needed for all living organisms, but the other options listed are necessary.
10. the second and third option are incorrect, because not every living thing needs a parent. The first option is incorrect, because not every living thing needs sunshine and it does not list the other necessary components. So, the correct answer is the last option. And a place to live can also mean an appropriate environment.
one and two please !!
Uranus is which planet from the sun?
Sorry about the subject, there is no science subject so I chose randomly
Uranus is the 7th planet from the sun :))
An insecticide is a chemical that can rid a plant of insects that cause damage to the plant. If the same insecticide is used for many years, it is likely that it will no longer rid plants of insects. Which statement BEST explains why insects are no longer harmed by an insecticide that has been used on the same plants for many years? (S7L5b) 1 pt. A. Over time, plants sprayed with an insecticide develop a resistance to it, which transfers to the insects when the insects eat the plants. B. Some insects are born with an ability to avoid harm from an insecticide, and they pass this ability to their offspring when they mate and reproduce. C. Some insects are born with an ability to avoid harm from an insecticide, and they pass this ability to other insects by coming into contact with them. D. Over time, plants sprayed with an insecticide develop a resistance to it, which transfers to the insects when the insects lay their eggs on the plants.
Answer:
its b
Explanation:
yep its is took the test
What is the relationship between octopuses and seagulls?
Answer:
The answer is that the relationship between octopuses and seagulls is that they both eat mussels.
Explanation:
Hope this helps!! ;)
PLS HELP! I need help with this question
How is surface water naturally purified?
A:freezing water destroys impurities
B:evaporation leaves impurities behind
C:sediments precipitate out
D:soil filters the water
The surface water is naturally purified by soils that filters the water. The correct option option is D.
What is soil water filtration?Soil not only captures water, but it also filters it. Physical, chemical, and biological processes clean the water that flows into and through soil.
When pollutants carried by water become trapped in the small pores of the soil, they are physically cleaned.
Water is cleaned by physical, chemical, and biological processes as it passes through soil.
In addition to its physical filtration capacity, soil contains important biota that helps transform and decompose certain chemicals and other contaminants from soil, thereby aiding in the removal of these contaminants from water.
Groundwater is typically clean and safe to drink. Groundwater is usually free of microorganisms that cause disease because the soil on top acts as a filter.
Thus, the correct option is D.
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