Answers
Answer:
1. Antonie van Leeuwenhoek made the first microscope and used it to look at bacteria and study bacteria, and Robert Hooke studied cells and saw cavities in the cells that looked like small boxes - he discovered plant cells! he recognized cells as the basic unit of life, a basis for Cell Theory.
2. cell theory is: every living organism is made of one or more cells, cells are the smallest units of life ( that have the properties of a living thing), All cells come from other cells - all living things come from other living things. This relates to every living thing because all living things come under cell theory - like all living things are made of cells
3. prokaryotes, like bacteria, doesn't have a nucleus covered in a membrane. a eukaryotic cell, like an animal cell, has a membrane covered nucleus. just like the nucleus, in eukaryotes the organelles are not membrane bound. in prokaryotes, the organelles are membrane bound. In prokaryotes the DNA form is circular, while the DNA form in eukaryotes is linear. there are more, but i couldn't list them.
4. Example for prokaryote: the famous (or infamous) E. Coli bacterium. example for eukaryote: Humans!
5. Single-celled organisms (unicellular organisms) have all the functions necessary for their survival in the single cell. Multicellular organisms (many celled organisms), however, need many cells to survive and carry out all the functions necessary for their survival and do the different tasks each cell is supposed to do.
I hope this helped, please do correct me if I am wrong!
Explanation:
Related Questions
Some objects are slowed down on while they fall due to friction/air resistance.
True or False?
Answers
Answer:
I believe it is True.
Explanation:
Friction is a force that opposes the motion of objects; friction can cause objects to slow down. Air resistance is a type of friction. Air resistance causes moving objects to slow down.
Why is so much energy "lost" between trophic levels?
It does not just disappear, what is it used for?
Answers
Answer:
Energy decreases as it moves up trophic levels because energy is lost as metabolic heat.
Explanation:
When the organisms from one trophic level are consumed by organisms from the next level. ... A food chain can usually sustain no more than six energy transfers before all the energy is used up.
pls help me, I need this rn, thank you!
Answers
Answer:
1.) DEPED: Department of Education;
Role: Improving the quality of education
2.) DENR: Department of Environment and National resources;
Role: Conservation, management, and development of the country's environment and natural resources.
3.) DOST: Department of Science and Technology
Role: The executive department of the Philippine Government responsible for the coordination of science and technology-related projects in the Philippines
4.) DSWD: Department of Social Welfare and Development
Role: Develop, implement and coordinate social protection and poverty-reduction solutions for and with the poor, vulnerable, and disadvantaged.
5.)TESDA: Technical Education and Skills Development Authority
Role: The government agency tasked to manage and supervise technical education and skills development in the Philippines.
Explanation:
VERY LATE REPLY, SORRY!!!!
These are just some of the Philippine government agencies that are involved in protecting the environment. There are many other agencies that play a role in this important task.
What are these agencies?Department of Environment and Natural Resources (DENR): The DENR is the lead agency in the formulation and implementation of environmental policies, laws, and regulations. It is also responsible for the management of natural resources, including forests, wildlife, and marine resources.
Department of Science and Technology (DOST): The DOST conducts research on environmental issues and develops technologies to address them. It also provides technical assistance to other government agencies and the private sector in the implementation of environmental programs.
Department of Social Welfare and Development (DSWD): The DSWD provides social services to people affected by environmental disasters. It also provides assistance to communities that are vulnerable to environmental hazards.
Technical Education and Skills Development Authority (TESDA): TESDA trains people in environmental-friendly technologies and practices. It also provides certification to workers in the environmental sector.
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The grains in sedimentary rocks are often ______________ during erosion
Answers
Answer: Droped
Explanation: Weathering breaks it, Erosion takes it, Depiction drops it
Answer: sediments
Explanation:
PLEASE IS SCIENCE 8th GRADE
Answers
balanced, which means that the forces pushing the rock in one direction are equal to the forces pushing the rock in the opposite direction. This is why the rock remains motionless on the flat sidewalk.
Which question can be answered by science?
A. Which type of candy tastes the best?
B. Which kind of backpack do students purchase most often?
C. Why are children happy when they get home from school?
D. Why should we help those less fortunate than us?
Answers
Answer:
B. Which kind of backpack do students purchase most often?
Explanation:
This is something that scientists can count as well as graph to show statistics and solid numbers.
a is wrong because every one has different opinions and different taste buds
c is wrong because some children might not be happy and the ones who are could have a million different reasons so you can’t have a certain answer
d is wrong because that is also an opinion some people don’t care about helping others and everyone could have different reasons for wanting to help others
Identify the species of horse fossils that would be found in the uppermost layer of rock.
A Orohippus
B Mesohippus
C Hyracotherium
D Miohippus
Answers
Answer: I think the answer would be D miohippus
Explanation:
Miohippus would be found in the uppermost layer of rock. Therefore, option (B) is correct.
What is Miohippus?Miohippus is an extinct genus of early horse that lived in North America during the Miocene epoch, around 23 to 5 million years ago. It was a small, three-toed horse that was slightly larger than its predecessor, Mesohippus.
Miohippus had a relatively short face, with a long, narrow skull and teeth that were adapted for grinding tough vegetation. It is believed that Miohippus was the ancestor of the modern horse, and that its evolution was characterized by an increase in size, a reduction in the number of toes, and changes in the shape of the skull and teeth that allowed for a more efficient grazing diet.
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Do all molecules with the same number of atoms have the same shape?
what would be a good hypothesis?
Subject: Science
Answers
Professor Parsons says
that Cramwood made a
mistake with his BAAD.
What could it have been?
What do you predict the
court will say? Write your
answer to the question
below on the other side
of this page
Answers
By adding tape to his BAAD, Cramwood increased its mass and increased
its inertia. The bigger BAAD requires more force to stop and ends up smacking Cramwood in the head when he applies the brakes.
What is inertia?Inertia is the tendency of an object to resist a change in its motion. Specifically, it is the property of matter that causes an object to maintain its state of rest or uniform motion in a straight line unless acted upon by an external force.
In other words, an object at rest will remain at rest, and an object in motion will continue to move at a constant speed and in a straight line, unless acted upon by an external force.
The amount of inertia an object has depends on its mass, with more massive objects having more inertia than less massive objects.
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cells that have a nucleus, membrane-bound organelles, and more complexity are called what?
Answers
Answer:
they are cells
Explanation:
carabuttram23 What planet is closest to the sun, what planet is least closest, which planet has rings (name any) in our solar system?
Answers
Answer: Mercury
Explanation:Mercury—the smallest planet in our solar system and closest to the Sun—is only slightly larger than Earth's Moon.
Which condition causes transpiration to DECREASE?
colder temperatures
lower humidity
warmer temperatures
higher air movements
Answers
Answer: Colder temperature.
Explain how deep currents form and move in the ocean.
Use complete sentences.
This is science 6th grade. Amplify.
Answers
Deep ocean currents are formed by differences in water density, which are usually caused by differences in temperature and salinity. The density of seawater increases as the temperature decreases and the salinity increases. This means that colder and saltier water is denser and sinks to the bottom of the ocean, while warmer and less salty water is less dense and rises to the surface.
These differences in water density set up a circulation pattern in the ocean known as thermohaline circulation. In this circulation, cold and dense water sinks in the polar regions and flows towards the equator, where it slowly rises to the surface. This creates a global conveyor belt of deep ocean currents that circulate water around the world's oceans.
The movement of deep ocean currents is also influenced by the Earth's rotation and the shape of the ocean basins. The Coriolis effect, which is caused by the Earth's rotation, deflects deep ocean currents to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The shape of the ocean basins also influences the movement of deep ocean currents, as currents tend to flow around the edges of the basins and are deflected by land masses and underwater ridges.
Overall, deep ocean currents are an important part of the global ocean circulation system and play a crucial role in regulating Earth's climate by transporting heat and nutrients around the world's oceans.
P.S - I didn't know if you wanted an essay
If you didn't just write the bolded sentences
Which is an example of a trace fossil?
A: animal burrow
B: skin of organism
C: preserved bone
D: petrified wood
Answers
Answer:
A: Animal burrow
Explanation:
Edge 2021
Trace fossils can be defined as the ones that provide geological records of the behavior and activities of past life.
These are also known as Ichnofossils.Trace fossils include borings, track and trails, burrowings, and coprolites and gastrolithes.Among the given examples, the evidence of past life is provided by the burrows of animals.Hence, among the given examples, trace evidence is an animal burrow. Therefore, the correct answer is option a.
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Question is in the pic. 20 points to answer.
Answers
What is thermal pollution?
A( Heat lost to the air and water causing environmental changes
B( Heat used to warm up an area.
C( A bi product of light energy
D( A form of energy
(80 points!)
Answers
Answer: A (Heat lost to the air and water causing environmental changes
Explanation: Simply put, thermal pollution comes from hot water or cold water being dumped into a body of water. Bodies of water naturally tend to dissipate the heat gained from warm currents, underwater hot springs, and from the sun. Thermal pollution is called that because it overwhelms the natural temperature control mechanisms that work in the water.
Answer is letter A-Heat lost to the air and water causing environmental changes
What is produced by the process of meiosis?
A.
Cells that are an exact copy of the parent cell.
B.
Cells that are exact copies of all the other daughter cells.
C.
Cells that contain half of the number of chromosomes present in the parent cell.
D.
Cells that contain the exact number of chromosomes present in the parent cell.
Answers
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for reproduction. So basically saying, C is the right answer.
Explanation:
Are both strands of DNA copied continuously during replication? Explain your answer.
Answers
Answer:
Since the two strands of a DNA double helix are antiparallel, this 5′-to-3′ DNA synthesis can take place continuously on only one of the strands at a replication fork (the leading strand). On the lagging strand, short DNA fragments must be made by a “backstitching” process.
Explanation
Hope this helps!!!
Nguyen's teacher gives him three rocks. Nguyen takes a photograph of each and attaches each photo in a data table in his lab manual.
Do you think these three rocks will have similar properties to each other? Or will they be different? Write down your predictions.
Answers
Answer:
Different properties, one is igneous, one is metamorphic, one is sedimentary
Explanation:
PLS ANSER THIS ASAP!
Answers
Answer:
number 3
Explanation:
i had this quiz and got it right
Answer:
c i think is the most relavent
Which trophic level is always a necessity in an energy pyramid or food chain?
a) primary consumer
b) producer
c) tertiary consumer
d) secondary consumer
I NEED THIS IN 5 MINUTES!!!!
Answers
Answer: primary
Explanation: there is alowayss a primary consumer
Which of the following is not an example of primary succession?
A. Lava cooling and hardening to form new rocks
B. Formation of sand dunes
C. Glaciers exposing bare rocks after melting or receding
D. Devastation of a forest after a fire
Answers
(free brainliest) Why don't birds get electrocuted when they land on an electric wire?
Answers
Answer:
My best guess is because the wire isn't producing electricity outside of of it, only inside. But it might also be due to what their "claws" are made out of.
Explanation:
This is because they aren’t good conductors. Similar to how rubber gloves will prevent an electric shock.
A scientist genetically engineered a grain cereal. The genetically engineered variety can produce its own vitamins and is drought resistant. What is the likely impact of growing such a cereal crop on the society?
May trigger an adverse climate change
May worsen the water crisis around the world
Would be beneficial for the malnourished population
Would increase the shortage of food around the world
Answers
HELP PLS 30 POINTS
SELECT ALL THAT APPLY. How does the end result of mitosis compare to meiosis? Question 6 options: Meiosis produces cells that are genetically different. Mitosis produces cells that are genetically exact copies. Mitosis produces cells that are genetically different. Meiosis produces cells that are genetically exact copies.
Answers
Answer:
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Explanation:
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
HELP PLS
Scenario
The global population has increased immensely over the last two centuries. Humans use fossil fuels to do a variety of tasks from heating their homes to travel to production of everyday products. As the human population has increased, so have the global fossil carbon emissions.
Write a scientific explanation that describes total world carbon emissions in 2050 if the world’s population decreases to five billion people.
Claim:
Evidence:
Reasoning:
Answers
Answer:
The earth would eventually become become a brown and grey wasteland and the blue sky and rainbows and things like that will be rare rain would be highly acidic
Evidence: There are less people which means less cars will be driven less oil will be used etc. also fossil fuels are non renewable resource which means fossil fuels will be harder to find overall diving up prices of gas,heating,etc which might make Deter people from using fossil fuels and switching to something cheaper. At this point to people will dislike fossil fuels more then now.
Reasoning: I think people won’t like fossil fuels for 2 good reasons. First the driven up price. Second there will be noticeable effects from fossil fuels it 2050. It can make crops harder to grow which could lead to famine and a Recession because driven up food prices and it will hurt the economy. Towns will slowly flood. Arctic species will die so on. So a poor family’s that can’t afford food won’t spend more money on something that overall hurts them. They will despise people who use fossil fuels and it will become socially wrong. Civilization at that time might also be working on them self. Population decreased a major amount. Something bad happened. And if what ever caused the decline in population was caused by humans which there’s no way to tell, they might try to improve human habits try not to begin wars, work on helping each other, and most importantly don’t harm there plant.
HELP ASAP!!
Research how coral reefs are formed. What types of animals live there? What important roles do cnidarians play in coral reefs? How do the tiny animals get their food? How do algae help the corals? Write three paragraphs describing coral reefs. Include the information listed above plus any other information you find.
Answers
Fish, corals, lobsters, clams, seahorses, sponges, and sea turtles are only a few of the thousands of creatures that rely on reefs for their survival.
Cnidaria have important ecological roles as reef structure builders, and as predators and prey in planktonic and benthic ecosystems.
At night, coral polyps come out of their skeletons to feed, stretching their long, stinging tentacles to capture critters that are floating by. Prey are pulled into the polyps' mouths and digested in their stomachs.
Algae belonging to the group known as dinoflagellates live inside the corals' tissues. The algae use photosynthesis to produce nutrients, many of which they pass to the corals' cells. The corals in turn emit waste products in the form of ammonium, which the algae consume as a nutrient.
Coral reefs begin to form when free-swimming coral larvae attach to submerged rocks or other hard surfaces along the edges of islands or continents. As the corals grow and expand, reefs take on one of three major characteristic structures — fringing, barrier or atoll.
Fish, corals, lobsters, clams, seahorses, sponges, and sea turtles are only a few of the thousands of creatures that rely on reefs for their survival.
Cnidaria have important ecological roles as reef structure builders, and as predators and prey in planktonic and benthic ecosystems.
At night, coral polyps come out of their skeletons to feed, stretching their long, stinging tentacles to capture critters that are floating by. Prey are pulled into the polyps' mouths and digested in their stomachs.
Algae belonging to the group known as dinoflagellates live inside the corals' tissues. The algae use photosynthesis to produce nutrients, many of which they pass to the corals' cells. The corals in turn emit waste products in the form of ammonium, which the algae consume as a nutrient.
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate.[1] Most coral reefs are built from stony corals, whose polyps cluster in groups.
Coral belongs to the class Anthozoa in the animal phylum Cnidaria, which includes sea anemones and jellyfish. Unlike sea anemones, corals secrete hard carbonate exoskeletons that support and protect the coral. Most reefs grow best in warm, shallow, clear, sunny and agitated water. Coral reefs first appeared 485 million years ago, at the dawn of the Early Ordovician, displacing the microbial and sponge reefs of the Cambrian.[2]
Sometimes called rainforests of the sea,[3] shallow coral reefs form some of Earth's most diverse ecosystems. They occupy less than 0.1% of the world's ocean area, about half the area of France, yet they provide a home for at least 25% of all marine species,[4][5][6][7] including fish, mollusks, worms, crustaceans, echinoderms, sponges, tunicates and other cnidarians.[8] Coral reefs flourish in ocean waters that provide few nutrients. They are most commonly found at shallow depths in tropical waters, but deep water and cold water coral reefs exist on smaller scales in other areas.
Coral reefs have declined by 50% since 1950, partly because they are sensitive to water conditions.[9] They are under threat from excess nutrients (nitrogen and phosphorus), rising ocean heat content and acidification, overfishing (e.g., from blast fishing, cyanide fishing, spearfishing on scuba), sunscreen use,[10] and harmful land-use practices, including runoff and seeps (e.g., from injection wells and cesspools).[11][12][13]
Coral reefs deliver ecosystem services for tourism, fisheries and shoreline protection. The annual global economic value of coral reefs has been estimated at anywhere from US$30–375 billion (1997 and 2003 estimates)[14][15] to US$2.7 trillion (a 2020 estimate)[16] to US$9.9 trillion (a 2014 estimate).[17]
Sorry I gave you more than 3 paragraphs.
How does the orientation of the North Pole change during the year?
Drag and drop the months to correctly match the descriptions.
points away from the sun, so the Northern Hemisphere gets its least sunlight
points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting longer
points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting shorter
points toward the sun, so the Northern Hemisphere gets its most sunlight
December,March,June, or September
(THIS IS SCIENCE NOT BIOLOGY)
Answers
The orientation of the North Pole changes as follows during the year:
December: points away from the sun, so the Northern Hemisphere gets its least sunlight.March: points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting longer.June: points toward the sun, so the Northern Hemisphere gets its most sunlight.September: points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting shorter.How does the orientation of the North Pole change during the year?The orientation of the North Pole remains relatively fixed throughout the year. It does not change its position or direction.
The North Pole always points in the same direction in the northern sky, which is towards the North Star or Polaris.
However, the tilt of the Earth's axis in relation to its orbit around the Sun causes the amount of sunlight received by different parts of the Earth to vary throughout the year.
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what method of controlling the python population do you believe would be
most effective? Create a plan based on your chosen method.
Answers
Answer: Well i think that you should see what kind of impact they have on the enviorment then you see what you can to regulate that
second you see what you can kind of tools you can use to regulate that
Explanation:
Answer: snake purge or snake hunger games jkjk
i would say see the impact and try to control the food source but i am not really sure
How have electron microscopes helped our understanding of cells and cell processes?
Answers
Electron microscopes have greater magnification, resolution, and detail than light microscopes. As per the unified cell theory, all organisms are composed primarily of one or more cells, the cell is the basic unit of life, and new cells arise from extant cells.
What is an electron microscope?An electron microscope is a type of microscope that illuminates with a beam of accelerated electrons.
Electron microscopes have greater magnification, resolution, and detail than light microscopes.
As per the unified cell theory, all organisms are composed primarily of one or more cells, the cell is the basic unit of life, and new cells arise from extant cells.
Thus, electron microscopes helped scientists in many ways to understand cells and cell processes.
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