Answer:
17,190 years Radiometric dating is a technique for determining the age of fossils that is based on the fact that specific radioactive isotopes decay at a constant rate.
Explanation:
explain how a molecule of carbon dioxide from the atmosphere teaches the site of photosynthesis in a leaf
Answer: On the surface of the leaves of the plants there are a large number of tiny pores known as stomata or stoma. For photosynthesis green plants take carbon dioxide from the air. The carbon dioxide enters the leaves of the plant through the stomata present on their surface. Each stomatal pore is surrounded by a pair of guard cells.
Explanation:
Depletion time describes the length of time it takes to use up
Answer:
80% of a mineral reserve
Explanation:
i got 100% on this unit
What are the two things that the mitochondria need to take in for Cellular Respiration to occur?
A. Sugar (glucose) & Oxygen
B. Carbon dioxide, Water, & Energy
C. Neither of these is true
Answer:
Oxygen and glucose are both reactants in the process of cellular respiration (option A)
Explanation:
Oxygen is needed to help in the process of transforming glucose into ATP.
on what basis are populations assigned to the same biological species?
Answer: On What Basis Are Populations Assigned To The Same Biological Species? Answer A Very Similar Appearance Being Able To Interbreed And Produce Fertile Offspring Relating To The Environment In The Same Way Sharing A Common Ancestor Having 99% Of Their Genes In Common
Question 3 of 10
What is immigration?
O A. When animals die in an ecosystem
O B. When animals are born in an ecosystem
O C. When animals move into an ecosystem
O D. When animals leave an ecosystem
SUBM
Answer:
the answer to your question is is c.
What is the constituent of red blood cell, white blood cell, platelets, plasma?
Please answer me I want your answer
Answer:
Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in. Red blood cells are responsible for carrying oxygen and carbon dioxide. Platelets are responsible for blood clotting. White blood cells are part of the immune system and function in immune response.
Explanation:
find the answer here
the process of converting dna to rna is called _______.
a human red blood cell is placed in a solution whose solute concentration is twice as great as the concentration of the cell cytoplasm. The cell membrane is selectively permeable allowing water but not the solutes to pass through. What will happen to the cell? a.) No change b.) the cell will shrivel because of osmosis c.) the cell will swell because of osmosis d.) the cell will shrivel because of active transport of water e.) the cell will swell because of active transport of water
Answer:
the cell will shrivel because of osmosis, moving to the region of higher concentration, and it shrivels due lost of water
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Explain please
Answer:
Site A W,X,Y,Z
Site B W,Z,Y,X
Explanation:
this is true believe meWrite the function of nucleus in the cells of organism
Answer:
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus.
Explanation:
HOPE IT HELPS...............Fill out the data table below with the range of each factor that will produce the optimal number of oxygen bubbles.
Answer:
B
Explanation:
anatomy of the skeletal system
Which vocabulary word could explain an increase in population growth?
A)biodiversity B)island biogeography C)emigration D)immigration
needed asap
what unwinds DNA molecule
Answer:
DNA helicases unwind DNA during DNA replication
Explanation:
Hope this helps!
why would one gene work as a barcode for one species and not for another
One gene work as a barcode for one species and not for another because for different species different barcodes are used.
Every specie is different than another organism genetically so it also needs different barcodes for every other specie. If all the species are made up of the same gene then we can say that one barcode is used for all of them but its not the case.
Every organism has different and its own gene so one gene barcode is not acceptable for all species but for the original one so we can conclude that one barcode is used for one species and not for another.
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What are Spore-bearing structures in fungi called what?
Answer:
Fruting bodies
Explanation:
Fungi can produce spores on somatic hyphae or on special spore producing hyphae which are arranged into structers called fruting bodies.
help me brainlist if u right.
Not much grass grows on the nesting grounds
What is needed for natural selection to occur? select all that apply.
what describes metal for being malleable?
Malleable metals will bend and twist into numerous shapes when affected by a hammer, whereas non-malleable metals might break apart into pieces. Examples of malleable metals are gold, iron, aluminum, copper, silver and lead. ... No metal is completely malleable, and all will break when under extreme stress
approximately what percentage of the human genome consists of repetitive dna or transposable elements?
Answer:
45%
Explanation:
illustrate how the self sealing bubble membrane helps to illustrate the passage of molecules through a cell membrane and the property of selective permeability
Self-sealing bubble membranes help to illustrate the passage of molecules and the property of selective permeability in that they are an example of how something can be semi-permeable and allow only some substances to pass.
When we mention a membrane, we refer to the selective barrier that protects cells from the environment. Within this barrier, lie certain proteins that serve as a kind of "tunnel" for the passage of very specific substances. This, along with a few other mechanisms are what gives a membrane the title of being semi-permeable.
This is because semi or selective permeability is the ability to allow the passage of very specific substances despite being a sealed barrier. Self-sealing bubble membranes share this ability by allowing some substances, like specific gases, to enter the bubble while others will remain on the exterior of the sealed barrier.
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Which type of urinary tract infection is most serious and can be fatal?
Answer:
b. Kidney infection
Explanation:post protected
please help me.what are the insects with out siphoning mouth parts.? please help.
1- List the 3 functions of the Digestive System
2- list the 2 function of the exretory system
3- describe the path of food,beginning in the mouth
4- describe the path of urine formation begginning in the kidneys
5- how does the urinary system maintain homeostasis
Answer:
1. transportation, digestion, and absorption of food.
2. Remove and concentrate waste products from body fluids and return other substances to body fluids
3. Food starts to move through your GI tract when you eat. When you swallow, your tongue pushes the food into your throat.
4. Urine then flows through the nephrons, through a system of converging tubules called collecting ducts.
5. filtering out excess fluid and other substances from the bloodstream and secreting waste.
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Explain how water move from cell to cell in a leaf
Answer:
By osmosis, water enters the root and travels through the root cells until it reaches the xylem vessels. These canals carry water from the stem to the leaf. Transpiration is the process of removing water from the leaves of plants via evaporation.
Explanation:
Water moves from cell to cell in a leaf through a process called transpiration, facilitated by a combination of cohesion, adhesion, and capillary action in the plant's vascular system.
Transpiration: Transpiration is the process by which water vapor exits the leaf's stomata (tiny openings on the leaf surface) into the surrounding atmosphere. As water vapor evaporates from the cells within the leaf, it creates a lower pressure within the leaf's interior, drawing water molecules from neighboring cells.
Cohesion refers to the attraction between water molecules, causing them to stick together. Adhesion, on the other hand, is the attraction between water molecules and the surfaces of other materials, such as the walls of plant cells and the walls of xylem vessels. These properties work together to create a continuous column of water within the plant's vascular system, allowing water to move upward from the roots to the leaves.
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What are the five areas that scientists use to paint the picture of how organisms are related
Answer:
Phylum.
Order.
Class.
Family.
Genus.
Species.
Analogous structures are evidence of ________. common ancestry divergent evolution stabilizing selection convergent evolution
Answer: Evidence of Evolution
Which of these is not an example your body maintaining homeostasis?
A-When exercising, your body releases more energy to your muscles.
B-On a hot summer day, you produce sweat.
C-When you get a virus, your body systems react to fight it.
D-When you see a piece of cake, your mouth waters.
Answer:
D. When you see a piece of cake, your mouth waters.
Particulate matter released during manufacturing that does not change form in the atmosphere is considered to be
primary pollutants from a stationary source
primary pollutants from a mobile source
secondary pollutants from a stationary source
secondary pollutants from a mobile source
Answer:
I think A, "Primary pollutants from a stationary source"
Explanation:
Got it right on exam :)
Particulate matter is defined as material emitted during manufacturing that does not change form in the atmosphere and is a primary pollutant from a stationary source. The correct option is a.
What is particulate matter?One of the least evident types of pollution is particulate particles. NOT the case for pollution from particle matter. Particle pollution, commonly known as particulate matter (PM), is a type of air pollution made up of microscopic fragments of solids or liquids.
Dust is one possible type of these specks. Dirt. Soot. Particulate pollution can exacerbate acid rain while also altering weather patterns, causing drought, accelerating global warming, and causing the ocean to become more acidic.
Therefore, the correct option is a. primary pollutants from a stationary source.
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