PLEASE HELP ME I WILL MARK BRAINLY IF CORRECT!!!!
A student rests his right ear against his desk while a
teacher taps lightly on the desk. The student can hear the
tapping sound only through his right ear. When he lifts his
head away from the desk, he hears nothing.
What is the medium of the sound waves the student hears?
A. The air
B. The student
C. The desk
D. The teacher
Answers
Answer:
The desk
Explanation:
the desk is the answer because the sound wave is propagating through the solid bench.
Hope this is right.,,
Related Questions
what is ozone?
pls help :(((
Answers
Answer:
Ozone, or trioxygen, is an inorganic molecule with the chemical formula O ₃. It is a pale blue gas with a distinctively pungent smell. It is an allotrope of oxygen that is much less stable than the diatomic allotrope O ₂, breaking down in the lower atmosphere to O ₂.
Explanation:
Answer:
The Ozone is created in the atmosphere when the sun's rays split oxygen molecules into single atoms. These atoms combine with nearby oxygen to form a three-oxygen molecule, called ozone.
Explanation:
Scientists use radiometric dating to determine the age of
rocks Radioactive atoms are used for radiometric dating
Which statement does not describe radioactive atoms?
A They are extremely stable types of atoms
B They change into atoms of a different element
They are used for absolute dating of samples
A Half of the stoms decay during one haline
C
Answers
Answer: C
Explanation:
Answer:
Its A
Explanation:
I just did the A-P-E-X
Why do parasitic flatworms travel into the eyestalks of their snail hosts? *
A) The snail’s brain is located in its eyestalks.
B) The flatworms exit the snail’s body from the eyestalks.
C) The flatworms lay eggs inside the snail’s eyestalks.
D) The flatworms cause the snail’s eyestalks to look appetizing to birds.
Answers
A student who studies the sizes of groups of birds records data for this group of ducks Which 2 terms describe the type of data the student records A. Quantitative B. Qualitative C. Continuous D. Discrete
Answers
Answer:
The correct option is A and C.
Quantitative and continuous
Explanation:
It is quantitative and continuous because A quantitative data is a data that it's value can be represented with numerical values or numbers or they are data that can be counted in numbers.
Continuous data is a quantitative data that can be divided into several parts and can take different values. It can be measured and represented in numbers.
18) When a population becomes larger than its carrying capacity, which one of the following may occur?
A) The death rate may fall.
B) The birthrate may rise.
C) The migration rate may rise.
D) None of the above
Answers
Answer:
The birthrate may rise.
Explanation:
If there are an increase in numbers, then obviously the amount of births will rise.
Plz help me with this.
Answers
Does chlorophyll absorb green light?
I was wondering if it was a yes or no answer
Answers
Answer: no, it reflects it
Explanation:
Answer:
no it does not absorb green light
Explanation:
what type of energy does a bike use to move
Answers
Answer:
Kinetic energy
Explanation:
a bicycle can convert up to 90 percent of person's
energy and movement into kinetic energy
Answer:
Kinetic energy
Explanation:
The bike is in the ground making contact with the speed source. In which it’s kinetic energy
How many neutrons are in a nucleus of an atom that
has an atomic mass of 16 and an atomic number of
Answers
Answer:
4
Explanation:
Answer correctly ASAP.
Which of the following objects is the largest?
A. Star
B. Galaxy
C. nebula
D. planet
Which of the following objects is the smallest?
A. Star
B. Galaxy
C. nebula
D. planet
Answers
Answer:
1 (B)
2 (A)
Explanation:
1. (galaxies are what a planet nebula and a star are inside of) a nebula if your wondering is a cloud in the galaxy.
2. (Stars because of the fact that our moon is smaller than the planet we live on is my explanation
If
there were suddenly no sunlight
reaching Earth, how would this
affect the ability of plants to
produce carbohydrates?
Answers
As we know that plant needs sunlight for performing the process of photosynthesis and by the process of photosynthesis produce food and if there is no sunlight than plant will not be able to produce sunlight and this will affect the ability of plant to produce carbohydrate.
What is photosynthesis?
Green plants contain chlorophyll and they prepare there own food in the presence of sunlight and the process is known as photosynthesis. In the process of photosynthesis light energy converted into chemical energy.
Carbohydrates is defied as that contains biomolecule that contains carbon hydrogen and oxygen in a ratio of 2:1. Carbohydrates are mane source of energy of the body they work as fuel for the brain, kidneys central nervous system and heart muscle.
[tex]Cn(H2O)n[/tex]is the basic formula for all carbohydrates . But this formula have limitation i.e it applies where same amount of carbon and water are use.Initially the terms carbohydrate was used to describe compounds that have really contains carbohydrates. Because they had simple formula[tex]CH20.[/tex]
Therefore, As we know that plant needs sunlight for performing the process of photosynthesis and by the process of photosynthesis produce food and if there is no sunlight than plant will not be able to produce sunlight and this will affect the ability of plant to produce carbohydrate.
Learn more about photosynthesis here:
https://brainly.com/question/1388366
#SPJ2
In the chemical reaction below, calcium (Ca) and water (H2O) react to form calcium hydroxide (Ca(OH)2) and hydrogen gas (H2).
Ca (s) + 2H2O (l) → Ca(OH)2 (aq) + H2 (g)
Calcium and water are the reactants in this chemical reaction, whereas calcium hydroxide and hydrogen gas are the products that are formed. Once the reaction reaches completion,
A.
the total mass of the products will be less than the original mass of the reactants.
B.
the products of the reaction will have changed back into the reactants.
C.
the total mass of the products will be equal to the original mass of the reactants.
D.
the total mass of the products will be greater than the original mass of the reactants. A B C D WHICH ONE?
Answers
Photosynthesis is the process that
OA.
all green plants and all animals use to break down food.
OB.
all green plants use to produce food.
C.
all green plants and all animals use to produce food.
OD.
all green plants use to break down food.
Answers
Answer:
b
Explanation:
photosynthesis is the process by which green plants manufacture their own food with the help of sunlight and chlorophyll
B. All Green Plants Use To Produce Food.
The definition of Photosynthesis is:
The process by which green plants and some other organisms use sunlight to synthesize/produce foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Which part(s) of your eye change light to electrical impulses?
Answers
Answer:
Light passes through the front of the eye (cornea) to the lens. The cornea and the lens help to focus the light rays onto the back of the eye (retina). The cells in the retina absorb and convert the light to electrochemical impulses which are transferred along the optic nerve and then to the brain.
Explanation:
Which organelle is found in photosynthetic organisms and captures energy from the sun?Which organelle is found in photosynthetic organisms and captures energy from the sun?\
Answers
Answer:
The chloroplasts in autotrophic organisms (most often plants and algae) capture energy from the sun.
Explanation:
The chloroplasts take in this energy from the sun, and converts it into energy called ATP through the process called photosynthesis.
#teamtrees #WAP (Water And Plant)
Answer:
The chloroplasts in autotrophic organisms (most often plants and algae) capture energy from the sun.
Explanation:
Two ways to make a vaccine.
Answers
Match each blood type with the types of blood it can recelve.
1. A
2. B
3. AB
4. O
_________
A, O
B, O
AB, A, B, O,
O
Answers
Answer:
1.A- A and O
2.B- B and O
3.AB- A, B, AB, and O
4.O- only O
do eukaryotic cells have a nucleus?
Answers
Answer:
Yes, Eukaryotes do possess a nucleus.
Answer:
yes I hope this helps
Explanation:
I have no explanation
Genes are sections of DNA that code for a particular trait. Genes are:
A. Carbohydrates
B. Lipids
C. Proteins
D. Nucleic Acids
Answers
Answer:
Genes are sections of DNA that code for a particular trait. Genes are nucleic acids.
Explanation:
Determine the genotype of each parent dog and write them below.
Curly fur = F
Straight fur = f
Blonde fur = B
Brown fur = b
Genotype of parent dog 1: (???)
Genotype of parent dog 2: (???)
Answers
Answer:
Genotype of parent dog 1: FfBb
Genotype of parent dog 2: FfBb
Explanation:
What evidence does not back the claim that a chloroplast is an ancient bacterial photosynthesizing endosymbiont?
A. Chloroplasts can be affected by antibiotics, a class of drugs that target bacteria.
B.Chloroplasts have flagella and cilia and these structures are similar in shape and function to flagella and cilia found in bacteria.
C.Chloroplasts have their own genome, and the structure of their DNA is identical to that of bacterial DNA.
D.Chloroplasts replicate and divide through fission, the way bacteria divide.
Answers
Answer:
B. Chloroplasts have flagella and cilia and these structures are similar in shape and function to flagella and cilia found in bacteria.
Explanation:
The ENDOSYMBIOTIC THEORY is a theory that suggests the evolution of eukaryotic cells from prokaryotes. The theory explains that some organelles such as MITOCHONDRIA and CHLOROPLAST found in eukaryotic cells were once free-living prokaryotes. This theory was based on certain evidences that backed up the claim that chloroplasts were endosymbiont i.e a cell that lived in another cell. The evidences include:
- Chloroplasts have their own genome whose circular structure of DNA is identical to that of bacterial DNA.
- Chloroplasts replicate and divide through fission, the way bacteria divide
- Chloroplasts can be affected by antibiotics, a class of drugs that target bacteria.
However, among these evidences, the possession of flagella or cilia by chloroplasts is not included.
An increase in body fluids leads to an increase in kidney filtration which leads to an increase in kidney output (urine). What type of feedback is this?
Answers
Answer:
Positive feedback.
Explanation:
An increase in body fluids causes increase in kidney filtration which leads to higher production of urine, this type of feedback is known as positive feedback because when there is increase in the output, this is called positive feedback while on the other hand when there is decrease in the output we called it negative feedback. So we can see that the output of the kidney is higher concentration of urine so we can say that it is a positive feedback.
The model shows a cellular process that occurs in every cell in eukaryotic organisms.
What is the purpose of the process shown?
Answers
Answer: the breakdown of certain food in the mitochondrion?
Explanation:
1. In cellular respiration, stored energy is released from ____________ molecules and transferred to ____________ molecules, which cells can use to provide energy for cellular processes.
Answers
Answer:
oxygen molecules
adenosine triphosphate (ATP)
Explanation:
not sure about the latter
Which of the following is the correct base-pairing rule for DNA?
A-U; C-G
O A-G; T-C
OA-T; G-C
OA-C; T-G
Answers
Answer:
A-T. C-G
Explanation:
Answer: A-T; G-C
Explanation: my teacher made us remember
How does a population's age structure affect its growth rate?
A) Populations with equal numbers of older and younger individuals will experience greater future growth.
B) Age structure of a population has relatively little affect on population growth.
C) Populations with older individuals will experience greater future growth.
D) Populations with younger individuals will experience greater future growth.
Answers
Answer:
D.
Explanation:
People with younger individuals will experience great future growth.
Help please I have no time
Answers
The end result of meiosis is to produce either an egg or a(n)
, depending on the gender of the organism.
Answers
Answer:
Sperm ?
Explanation:
I think i'm right.
Modeling the Equation of Cellular Respiration
Although cellular respiration involves many steps, the Which substances would complete the equation that
whole process can be represented by a single equation models the overall process of cellular respiration?
A+B-C + D + E
A
B:
C:
D
E:
Intro"
Answers
A= C6 H12 O6
B= 6O2
C= 6Co2
D= 6H2 0
E= ATP
Hope this helps! Have a great day!! :)
Answer:
A: glucose
B:oxygen
C: carbon dioxide
D: water
E: ATP
Explanation:
i did it on edge
Please help and please do not copy and paste from google and please use your own word ->Density is
Answers
Answer: Density is a measure of mass per unit of volume
Explanation:
The average density of an object equals its total mass divided by its total volume. An object made from a comparatively dense material (such as iron) will have less volume than an object of equal mass made from some less dense substance (such as water).
Explanation:Density is like a some measore of mass for unit now the average of some object equal like a mass divided by a total volume. now i know that ab object made from a dense material it could be the iron if that material is make it of iron it will going to have less volume than other object made from another less dense subtance (it could be the water)
(hope this help u i also use gramarly :) )