Where do living cells come from?
no one knows
any other cells, living or dead
only dead cells
only other living cells
Answer:
Only other living cells
A cyclist travel 9 km in 30 minutes. What is the students average speed in km/h?
A.14 km/h
B.16 km/h
C.18 km/h
D.20 km/h
The students average speed is 18km/h. So, the correct option is C.
What is Speed and Velocity?Speed is defined as the time rate at which an object is moving along a path, whereas velocity is defined as the rate and direction of motion of an object. Speed is a scalar quantity as it has only magnitude, whereas velocity is a vector quantity as it has both magnitude and direction.
Speed is expressed as
Speed= Distance/ time taken
Velocity is expressed as:
Velocity= Displacement/ Time taken
Both are expressed as meter per second. (m/s)
For above given information,
If student travelled 9km in 30 minutes
So, it will cover in 1hr = 9* 60/30 = 18km/hr
Thus, the students average speed is 18km/h. So, the correct option is C.
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PLEASE HELP WILL MARK BRAINLIEST How does the human excretory system filter waste from the blood, store it and then get rid of it? Include the word kidneys, urine and bladder in your answer.
Answer:
Waste is filtered from the blood and collected as urine in each kidney. Urine leaves the kidneys by ureters, and collects in the bladder. The bladder can distend to store urine that eventually leaves through the urethra. Human excretory system and the details of the kidney.
Answer:
blood is filtered in the kidneys and the waste is then transported from the kidney to the bladder.
Explanation:
Hope this helps, if its correct can you mark me brainliest
Select from the drop-down to correctly complete the statement.
The
________
is the basic unit of structure and function in living things.
WILL GIVE BRAIIEST FOR BEST ANSWER Caverns are formed by:
limestone dissolving
glacial erosion
crashing waves
calcium carbonate shells
Answer:
limestone dissolving
Explanation:
reason for answer: caverns aren't always formed by water so no to crashing waves
Solution caves are formed in carbonate and sulfate rocks such as limestone, dolomite, marble, and gypsum by the action of slowly moving ground water that dissolves the rock to form tunnels, irregular passages, and even large caverns along joints and bedding planes.
- A website
Describe the life cycle of a mollusk.
ill give brainlist!!
Answer:
Like many invertebrates, the mollusk life cycle includes one or more juvenile or larval stages that are very different from the adult form of the animal. Both mollusks and annelids develop through a larval stage called a trochophore larva. ... Mollusks reproduce s,exually, and most species have separate genders
Explanation:
Magma that cools below Earth’s surface forms ____ rock.
a.
extrusive metamorphic
c.
intrusive metamorphic
b.
extrusive igneous
d.
intrusive igneous
------------------------------------------------
Please select the best answer from the choices provided
Answer:
intrusive igneous
Explanation:
it's called intrusive igneous
what will be the correct answer for this?
Why can the product of a synthesis reaction never be an element?
Answer:
The hallmark of a synthesis reaction is that a more complex product is formed from the reactants. One easy to recognize type of synthesis reaction occurs when two or more elements combine to form a compound. The other type of synthesis reaction happens when an element and a compound combine to form a new compound.
Explanation:
Where can you find the largest reservoir of freshwater?
As in any essay, the first paragraph of your argumentative essay should contain a brief explanation of your topic, some background information, and a thesis statement. In this case, your thesis statement will be the statement of your position on a particular controversial topic. You are making a claim! You are making a claim on the following question: "Are human activities the primary reason for the composition of Earth's atmosphere, or is it the effect of natural phenomena?"
The diagram below shows part of the rock cycle.
Which type of rock does C represent?
A). Igneous rock
B). Rock formed by cooling
C). Rock formed by heat and pressure
D). Sedimentary rock
Answer:
D
Explanation:
This is because sedimentary rocks are rocks formed by sediments and compaction.
You see a volcano with relatively steep sides and sticky lava that does not flow easily. It produces explosive eruptions due to gas building up in the viscous magma. What type of volcano is this?
Claim:
Evidence:
Reasoning:
You see a volcano which produces low viscosity, runny lava, it spreads far from the source and forms a volcano with gentle slopes. It is formed by thick lava that flows slowly and is not explosive.
What type of volcano is this? Use the sentence starters from the previous slides: Claim:
Evidence:
Reasoning:
Answer:
Stratovolcano Stratovolcanoes
Explanation:
Stratovolcano. Stratovolcanoes have relatively steep sides and are more cone-shaped than shield volcanoes. They are formed from viscous, sticky lava that does not flow easily. The lava therefore builds up around the vent forming a volcano with steep sides.
Answer:
Basaltic lava, from a shield volcano
Explanation:
an example of another problem that could be solved by using the information from the maps in this activity
Answer:
9+71
Explanation:
9+71=80
What does your textbook call dip slips?
Answer:
strike slip
Explanation:
it happens when two pieces of land move horizontally (side to side)to each other
......................................................
Answer:
.........? what... I can't understand lol
Where do living cells come from?
DNA
traits
living cells
non-living cells
Cell theory states that living things are composed of one or more cells, that the cell is the basic unit of life, and that cells arise from existing cells.
So the correct option is C - Living cells
Sort the sequences based on the type of mutation they display.
Answer:
c
Explanation:
hope it helps
Write a scientific explanation determining which unknown is the solid,which is the liquid, and which is the gas.
Answer:
best answer I could find, hope it helps
Explanation:
Difference between Solid Liquid and Gases
Highly Strong intermolecular forces between the molecules, leads to a definite volume in Solids.
The intermolecular forces are stronger than gases but weaker than solids.
The intermolecular forces are practically non-existent. Thus, there is no definite volume.
Solids have a definite shape to them. Liquids do not have a definite shape.
Gases do not have a definite shape.
The intermolecular space between solids is absent.
The intermolecular space is moderate but present.
The intermolecular space is free-flowing and plenty.
The force of attraction between the molecules is incredibly high.
The force of attraction between molecules is pretty moderate.
There is no intermolecular force of attraction between the molecules.
They are incompressible.
Liquids cannot be compressed.
Gases can be compressed quite easily.
Solids have a definite shape and volume.
Liquids have a definite volume.
Gases have no definite volume.
Answer:
Water
Explanation:
The Water can be a Solid State. (Ice)
The Water can be a Liquid State. (Water)
The Water can be a Gas State. (Steam)
Hope this helps! Please correct me if I'm wrong.
Unknown should be Water.
Describe the chemical composition of the Earth's atmosphere. Which elements are abundant? Which are not?
Answer:
Nearly all of the Earth's atmosphere is made up of only five gas es: nitrogen, oxygen, water vapor, argon, and carbon dioxide. Several other compounds are also present. Although this CRC table does not list water va por, air can contain as much as 5% water vapor, more commonly ranging from 1-3%.
Explanation:
Site: Go ogle sorry...
The Earth's atmosphere is primarily composed of nitrogen (78%) and oxygen (21%), with trace amounts of other gases such as argon, carbon dioxide, and neon. Water vapor levels vary but can reach around 4%. Additionally, there are trace amounts of various gases, including methane and ozone.
In the Earth's atmosphere, nitrogen and oxygen predominate. At around 78%, nitrogen predominates, with oxygen making up around 21%. These two gases are necessary for maintaining life since oxygen is required for breathing and nitrogen is used by plants and other living things.
Smaller amounts of other gases like neon, carbon dioxide, and argon are also present. Water vapor plays a significant effect on weather and climate, fluctuating but sometimes reaching 4%. Methane, ozone, and other trace gases are present in small levels yet have a big impact on climate, affecting greenhouse effects and atmospheric chemistry.
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With an increase in farming comes an increased impact on the environment. Why would increasing amounts of pesticides in the soil and groundwater be bad?
Answer: Pesticides are found as common contaminants in soil, air, water and on non-target organisms in our urban landscapes. Once there, they can harm plants and animals ranging from beneficial soil microorganisms and insects, non-target plants, fish, birds, and other wildlife.
Source:
Impact of pesticides use in agriculture: their benefits and ...https://www.ncbi.nlm.nih.gov › articles › PMC2984095
Increasing amounts of pesticides in the soil and groundwater be bad because they are harmful to the health of humans and animals, and they cause very harmful diseases.
What are pesticides?Chemicals known as pesticides are used to control or kill pests that threaten crops on farmlands. These pesticides are harmful to the health of people and animals if consumed, even if they aid the farmer in eliminating his pest problem and probably boost productivity.
Pesticide tolerance, as established by the Environmental Protection Agency (EPA), refers to the quantity of a pesticide chemical that can be applied to a product.
Therefore, growing concentrations of pesticides in the soil and groundwater are problematic, since they endanger both human and animal health and lead to extremely dangerous diseases.
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pls help i have till 5:00 pm today!
MYTH
An organism’s kingdom only describes physical characteristics.
FACT
Evidence #1
Evidence #2
Answer:
1.Kingdom Plantae: They obtain their food through photosynthesis
2.Kingdom Animalia : They obtain their food through hunting or consuming other organisms.
What is the primary purpose of seed dispersal?
A) Begin photosynthesis in the seed coat
B) Create a new colony of offspring in plants
C) Lure animals away from the parent plant
D) Reduce competition with parent plant
Answer:
it d because I took test and I know it D
Inside the chromosomes are molecules that contain all information an organism needs to grow and reproduce.
What is this called?
cells
DNA
traits
respiration
Answer:
They are called DNA(Deoxyribonucleic acid )
Answer:
DNA
Explanation:
Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction
QUICK! [This is the stem.]If each circle represents the cell membrane of an animal cell, which diagram correctly shows the movement of materials by osmosis?
Diagram A correctly shows the movement of materials by osmosis.
Osmosis can be defined as the net movement of a fluid (e.g., water) across a semipermeable biological membrane.Osmosis movement is due to different concentrations of one or more solutes on both sides of the cell membrane. Osmosis does not require energy to move substances across the membrane.In conclusion, Diagram A correctly shows the movement of materials by osmosis.
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What are the types of rainforests? (Select all that apply.)
a.) rocky
b.) tropical
c.) taiga
d.) temperate
_______ is the fluid connective tissue that circulates through the vessels in the body.
In plants, meristematic cells are most similar to which type of cells in animal tissues?
A. Blood Cells
B. Stem Cells
C. Nerve Cells
D. Skin Cells
Answer:
B. Stem Cells
Explanation:
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Option B
Stem Cells
A cell membrane is like a wall.
true
false (also bots are back stay safe dont use links
False, a cell wall is made from a denser material and is used to protect the cell membrane.
pls help o-o
The more _____ the cells of the iris have, the darker the eye will be.
Answer:
Melanin
Explanation: