Answer:
One method that allows scientists to tell the age of the rocks are radiometric dating; this method is done by finding the natural radioactive decay of elements like carbon; for EX. rocks found deeper in the core of the earth will have less carbon than rocks found shallower in the earths core.
What this method can tell us about the history of earth is that through the collection of the levels of carbon and other properties that were in the air from older rocks, we can tell if an event occured during the earths history that configured those properties in the rock.
Explanation:
which cell is defective in situation 2? what happens to the hormone concentrations as a result of this defect?
Answer:
The defective cell is the M cell. due to the stimulation of Hormone A, cell M produces hormone B in large quantities by inhibiting the production of hormone A by cell D
Please HELP ME ASAP I WILL GIVE YOU BRAINLEST Question 4 (3 points)
Which of the following processes is NOT a way that carbon could move between the atmosphere and the biosphere?
Question 4 options:
respiration (breathing)
combustion (burning)
deep burial, compaction, and cementation
photosynthesis
Question 5 (2 points)
What is the only natural way that carbon can move OUT of the geosphere?
Question 5 options:
burning of fossil fuels
volcanic eruptions
dissolution
decomposition
Question 6 (1 point)
Which carbon reservoir contains the MOST carbon?
Question 6 options:
fossil fuels
atmosphere
land biomass
rocks
Question 7 (2 points)
Which carbon reservoir changes the quickest and has the biggest direct effect on climate?
Question 7 options:
land biomass
ocean
atmosphere
rocks
Question 8 (2 points)
Which best describes the process of ocean acidification?
Question 8 options:
The ocean absorbs more human-produced CO2, causing the acidity to increase
The ocean releases more human-produced CO2, causing the acidity to decrease
The ocean absorbs more natural CO2, causing the acidity to decrease
The ocean receives more polluted runoff, causing the acidity to increase
Question 9 (2 points)
What is a potential impact of ocean acidification?
Question 9 options:
Animals will have a harder time building their shells
Corals may have a harder time building their skeletons
Ocean ecosystems may suffer, making it harder for humans to get food from the ocean
All of the above
Answer:
photosynthesis
Explanation:
as plant need carbon dioxide for making food so carbon does not release
What role do animals play in
photosynthesis?
a.release oxygen
b.release carbon dioxide
Answer:
Release carbon dioxide
Explanation:
Animals breathe in oxygen and release carbon dioxide
Answer:
Your answer should be B
Animals release carbon dioxide
Explanation:
Amylase is an enzyme that digests starch.
A student investigated the effect of pH on the activity of amylase.
This is the method used.
1.
Mix amylase solution and starch suspension in a boiling tube.
2.
Put the boiling tube into a water bath at 25°C.
Remove a drop of the mixture every 30 seconds and test it for the presence of
starch.
3.
4.
Repeat the investigation at different pH values.
The table below shows the students' results.
PH
Time when no starch was
detected in minutes
5.0
7.0
5.5
4.5
6.0
3.0
2.0
6.5
7.0
1.5
7.5
1.5
8.0
2.0
(a)
The student concluded pH 7.25 was the optimum pH for the amylase enzyme
This is not a valid conclusion.
Suggest two reasons why.
Answer:
a
Explanation:
I took the test and got it right
Amylase is an enzyme that digests starch.
A student investigated the effect of pH on the activity of amylase is The student concluded pH 7.25 was the optimum pH for the amylase enzyme.
What is a definition of enzyme?An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell.
Thus, option "A" is correct.
To learn more about enzyme click here;
https://brainly.com/question/14953274
Karyokinesis occurs in what phase
Answer:
The M phase
Explanation:
Please help... This is middle school stuff. It'll be easy for you.
Answer:
Volcano eruptions-when one plate is submerged below another, it melts and goes back to the surface as magma and creates a volcano
Earthquakes- when 2 plates slide against or hit each other
Seafloor spreading- where divergent plates move away from esch other, magma goes up to the surface and solidifies
Mountain formation- When two convergent continental plates hit each other. Continental plates are light so instead of submerging, they both rise higher to the surface and creates high land(mountains)
HOPE THIS HELPS!!!!
Which of the following structures assist the major structures of the digestive system?
A. gall bladder, small intestine, and liver
B .salivary glands, mouth, and esophagus
C. pancreas, gall bladder, and salivary glands
D. pancreas, stomach, and large intestine
Answer:
that would be C. pancreas, gall bladder, and salivary glands
ignore this it’s for the c
Which of the following is NOT a feature of asexual reproduction? *
Answer:
the first one creates genetic variation that aides in evolution
Explanation:
aides means like help and so asexual reproduction does not help in evolution because the organism is only making the same copy of itself
what are the contents of a mature pollen grain
Answer:
Mature pollen grains contain two cells: a generative cell and a pollen tube cell. The generative cell is contained within the larger pollen tube cell. Upon germination, the tube cell forms the pollen tube through which the generative cell migrates to enter the ovary.
Explanation:
5. Which of the following does NOT correctly match a fault with its boundary? *
A. normal fault & convergent boundary
B. normal fault & divergent boundary
C. reverse fault & convergent boundary
D. strike-slip fault & transform boundary
A subscript shows a what......
Which statements correctly describe greenhouse gases in the
atmosphere?
Choose all that apply:
Greenhouse gases absorb infrared radiation from Earth's surface.
Greenhouse gases allow the sun's rays to pass through.
Greenhouse gases are
released when the sun's rays hit Earth.
Greenhouse gases absorb all kinds of radiation that falls on them.
Please select the word from the list that best fits the definition
Measures how difficult it is to change or stop the movement of an object
Answer:
Motion is a change in position measured by distance and time. Speed tells us the rate at which an object moves.
Answer:
the answer is B
Explanation:
Explain the fully developed (Bisporic embryo sac and Tetrasporic embryo sac ) types of embryo sac? in plant
Answer: Embryo sac is the megaspore mother cell.
Explanation:
The bisporic embryo sac can be defined as the comprises of the nuclei that is obtained from two units of the megaspore tetrad on the other hand, the tetrasporic embryo sac comprises of four units of megaspore tetrad. The megaspore mother cell undergoes meiosis to produce megaspore tetrad or four haploid megaspores.
Pls help imma fail if you someone doesn’t plss
The answer is A
different shapes made by the suns reflection off the moon
please answer this question:)
Answer: the second one
Explanation:
Environmental science
Answer:
asdasd as
Explanation:
dasdadsad
9. A person instinctively curls over his abdominal area in times of danger. Why?
Answer:
A person instinctively curls over his abdominal area in times of danger. Why? To prevent a smaller target and also to protect the internal organs and genitalia.
Explanation:
Question 8 (1 point)
Children who drink fluoridated water have a much higher incidence of dental caries.
True
Or false
Answer:
False
Explanation:
No need for one.
When a molecule other than substrate binds to the active site of an enzyme and
slows its activity
Definition
Answer:
Competitive inhibition
Explanation:
Competitive inhibition is a type of enzyme inhibition where one molecule inhibits the effect of another molecule (called the substrate) by competing with it for binding at the active site of the target enzyme, thereby preventing the substrate from binding. The active site refers to the specific region of an enzyme that binds with a particular substrate. This mechanism is well-known in pharmaceutics, where specific drugs are designed to show structural resemblance to a particular substrate, preventing its normal function.
Which example is a function of the selectively permeable membrane of a cell?
A. supporting the shape of the cell
B. manufacturing proteins for the cell
C. limiting chemicals that diffuse out of the cell
D. storing waste products for the cell
Answer:
limiting chemicals that diffuse out of the cell
Which is a key element found in all carbohydrates lipids proteins and nucleic acids
Answer:
try carbon
Explanation:
Answer:
carbon
Explanation:
i got it right
Which of the following statements is true regarding the discovery of the double helix?
Choose 1 answer:
I have already answered you. It's B
What I know about Anaerobic respiration
Answer:
ntn ablsolutly ntn
hope tha helps ya mate :)
good luck
(use goo gle)
Rainfall collects in a crack in a rock. When the temperature drops, this water freezes and expands. This causes the crack to become slightly larger is this weathering or erosion
Answer:
Weathering
Explanation:
Weathering - breaking down of rock.
Answer:
Weathering
Explanation:
How does anaphase 1 in meiosis differ from anaphase in mitosis
Answer:
The differecnce is in the amount of DNA present and what type. In meiosis you have a diffrent amount of DNA than mitosis and the DNA in meisosis has done crossing over aand is different than the original. Mitosis is exactly the same
Explanation:
Question 13
Tsunamis and tidal waves are the same.
True
False
Answer:
False
Explanation:
Tsunamis are massive waves, and tidal waves are just, well, waves! Like the ones we see when we go to the beach.
Answer:
False
Explanation:
A tidal wave is a shallow water wave caused by the gravitational interactions between the Sun, Moon, and Earth
tsunami is an ocean wave triggered by large earthquakes that occur near or under the ocean, volcanic eruptions, submarine landslides, or by onshore landslides in which large volumes of debris fall into the water.
Plz help me with this question.
Answer:
Answer A
Explanation:
Answer:
C
Explanation:
The lion benefits by eating up the zebra while the lice benefits from the blood it gets from the fish.
Why is the ovum so much bigger than a sperm cell?
1)It already contains all the chromosomes that will determine the zygote's traits.
2)It must store enough food for the growth of the zygote into an embryo.
3)Its big size allows the sperm to locate it better inside the oviduct.
4)A big ega is easier to implant in the uterus after tertilization.
Answer and I will give you brainiliest
Answer:
The answer would be number 2
Explanation: