main issue with Wegener's Continental Drift Theory is he did not have a mechanism behind the drifting of continents
does the moon make it's own light? explain how the moon gives us light at night?
Answer:
The moon does not make it's own light
Explanation:
The light from the sun reflects off of the moon, which makes it look like it is glowing. That is how the moon gives us light at night.
Explain how muscles work in pairs for the arm curl?
Answer:The biceps and triceps act against one another to bend and straighten the elbow joint. To bend the elbow, the biceps contracts and the triceps relaxes. To straighten the elbow, the triceps contract and the biceps relax.
Explanation: antagonist and agonist muscles
Example of carbohydrates being used for structure or support in a living organism
Answer:
starch, glycogen, cellulose, and chitin
Explanation:
in the human body, the brain regulates and controls all of the functions of the body. which organelle in a cell has a similar function?
Answer:
Nucleus.
Explanation: The nucleus is the brain of the organelle. It controls most of its functions and also holds the DNA for that cell.
PLEASE HELP DUE TODAY NO LINKS WILL REPORT AND IF COULD ADD EXPLANATION THAT WOULD HELP
Answer:
24 sq meters
Explanation:
4 times 6 is 24
Answer: Try 24m^2 so just type in answer box “2”
Explanation:
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A human has 46 chromosomes in each body cell. How many chromosomes would be found in its daughter cells after mitosis
Answer:
Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II. At the end of meiosis I there are two haploid cells.
During the winter, a homeowner places a heavy cloth curtain across the stairwell leading upstairs from the main rooms. Which is the best explanation of the reason she does this?
A.
She wishes to place a radiating surface across the stairwell to help keep the area warm.
B.
She wishes to prevent the stairwell walls from drawing thermal energy away from downstairs by conduction.
C.
She wishes to keep hot air from downstairs from flowing up the stairwell by convection.
D.
She wishes to keep hot air from upstairs from flowing down the stairwell by convection.
Answer:
D.
She wishes to keep hot air from upstairs from flowing down the stairwell by convection
What evidence exists that non-verbal behaviour is innate? (3 marks)
Answer:
Evidence that non-verbal behaviour is innate
Facial expressions should therefore be the same across all cultures and research evidence suggests expressions for anger, disgust, happiness, sadness, fear and surprise are universally recognised by most cultures throughout the world.
Which of the following circulates within blood?
Answer:
d. all of the above
Explanation:
to prevent acid from seeping in the stomach, the stomach cells join one another via
The stomach and the cells that comprise it have a three-part protection system to protect from the acid contained in the stomach, comprised mostly of compact cell unions.
The stomach is one of the main digestive tract organs. Its job is to break down the food we ingest and pass it along to the rest of the digestive tract. To perform this action, the stomach secrets hydrochloric acid. However, the stomach itself is not damaged by this acid due to a three-part protective system comprised of:
Tight epithelial cell liningMucose BarrierBicarbonate secretionThe cells present in the epithelial lining of the stomach join one another via compact cell unions to form a closed barrier which is then covered by a thick Mucose barrier. This along with the secretion of bicarbonate which works to break up the acids present in the stomach and ingested, form a sealed barrier that protects the stomach from harm.
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I AM VERY GENEROUS NO JOKES PLEASE PS... PLEASE HELP
What is the end result of crossing-over during the first stage of meiosis?
-the paternal DNA only is copied onto the chromatids
-the chromatids are identical to each other
-the chromatids contain the maternal DNA only
-the chromatids become non-sister (non-identical) chromatids
Answer:
The chromatids contain the maternal DNA only.
Explanation:
They must contain half the original number of chromosomes. It must contain only one chromosome in place of each homologous pair of chromosomes, so it is endowed with either the maternal or the paternal copy of each gene but not both.
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how many heme groups are there in each hemoglobin molecule?
Answer:
4 heme groups
Explanation:
Which of the following correctly describes contrasting features of a plant cell and an animal cell?
Plant cells have a cell membrane, and animal cells have both cell walls and a cell membrane.
Plant cells have a large central vacuole that takes up most of the cell's space, and animal cells have many smaller vacuoles.
Plant cells have lysosomes with enzymes, while animal cells have only the Golgi apparatus.
Plant cells have both rough and smooth endoplasmic reticulum, while animal cells have only smooth endoplasmic reticulum.
Answer:
Plant cells have a large central vacuole that takes up most of the cell's space, and animal cells have many smaller vacuoles.
Explanation:
Hope this helps.
Which process must occur for a muscle to be able to relax?
O A The amount of ATP in the neuromuscular junction must increase.
O B. Myosin and actin must attach to each other.
O C. A nerve must initiate an action potential in the muscle fiber.
O D. The concentration of calcium in the myJfibril must decrease.
when does an electron emit energy in the form of a photon?
Answer:
When the electron changes levels, it decreases energy and the atom emits photons. The photon is emitted with the electron moving from a higher energy level to a lower energy level. The energy of the photon is the exact energy that is lost by the electron moving to its lower energy level.
all foods that require refrigeration should be maintained at an internal temperature. true or false
Answer:
TRUE
Explanation:
uhm i'm sure with this answer.
which of the following statements is most likely to be true in the case of the feedback-regulated
Answer:
Where is the statements because you didn't write it.
Starch is found in foods such as peas, corn, and potatoes. For the body to receive energy from starch, it is broken down into smaller units. A mutation occurs in the gene that codes for a protein that breaks down starch.In which case will the mutation be harmful?
This mutation would be harmful for the body because, when not able to break down the starch and use it for energy, the body will begin to have starch buildup and not be able to do anything with it. It would continue to build up and do some serious damage everytime someone who has this mutated gene eats food rich in starch.
how does your body acquire the oxygen the cells in your body need to function?
Answer:
You take in oxygen and it goes to your lungs. It spreads through your body, going through your bloodstream, and going to your heart. The excess oxygen turns into carbon dioxide leaves through your mouth. When it leaves, the plants take the carbon dioxide and turn it back into oxygen, and repeating this process.
(I'm pretty sure this is the answer. Hope it helps:)
Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
What are the functions of hemoglobin?Hemoglobin is a protein in your red blood cells that carries oxygen to your body's organs and tissues and transports carbon dioxide from your organs and tissues back to your lungs.
Hemoglobin, abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein present in red blood cells of almost all vertebrates as well as the tissues of some invertebrates. Hemoglobin in blood carries oxygen from the respiratory organs to the rest of the body.
Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues. Myoglobin, in muscle cells, accepts, stores, transports and releases oxygen.
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You are looking at a star through a telescope in January. There is a small shift in the star’s apparent position compared to when you looked at the same star through a telescope in July. What can you conclude about the distance of the star from Earth?
Answer:
the earth moved its position around the sun
The National Climatic Data Center (NCDC) in Asheville, North Carolina is the world's largest active archive of weather data.
According to the NCDC, each of the years from 1997-2009 represent the warmest global temperatures on record, dating back to
1880. Which of these would represent a biased conclusion based on this data?
A)
the data only dates back to the 1880's
B)
the average global temperature for 2007 as 58.00 °F
C)
the warmest year on record was 2005 and the coolest was 1911
D)
the automobile industry is solely to blame for the increase in global
temperatures
Answer:
D) the automobile industry is solely to blame for the increase in global
temperatures
Explanation:
that is based because many things cause global warming, not just the exhaust from cars.
What is the largest corvid?
Answer:
the thick-billed raven its around 3.1 pounds and 26 in
Explanation:
look at attached image, which gases are in kept in the different plants
the gases that kept different planta is A
based upon structural classification, what type of joint is a suture?
Based upon structural classification, what type of joint is a suture? Sutures are classified structurally as fibrous joints. They would be classified functionally as synarthrotic joints based upon their degree of movement.
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why does a microscope stage have a small hole in it?
You can look through the hole fro a closer look
The water cycle plays an important role in an environment because
Answer:
it gives us water and it helps all our thing in the envierment grow and help us live.
Distinguish among corms, bulbs, and tubers.
Answer:
Bulbs
Bulbs are plant storage organs generally grown underground, consisting of a short stem ( the basal plate ), from which grow overlapping, swollen leaves or leaf bases. The top growth emerges from the bulb center. Here's an example : See the attached photo.
Corms
Corms are not made up of leaves, but a vertical swollen compact stem, and as such are solid. The corm is protected by a tunic of old leaf petioles. Here's an example :See the attached photo.
Tubers
Tubers are, simply, enlargements in the underground stem or lateral root of a plant that are used for food storage. These vary greatly in appearance, but all have the same function. Here's an example : See the attached photo.
integral proteins are important to maintain the strength of the cell membrane. true of false?
Answer:
false
Explanation:
Integral proteins are one type of membrane protein. They are constantly associated with the membrane, carrying out many different functions but they do not maintain the strength of the cell membrane. The sentence is False.
-----------------------------------
Plasmatic membranes are composed of lipids and proteins.
Among the proteins, we can find integral proteins and peripheric proteins.
Integral proteins are permanently associated with the membrane.
They accomplish many different functions such as substances transport, cellular receptors, cellular adhesion, among others.
According to how they are incrusted in the lipidic bilayer, integral proteins might be,
Transmembrane proteins ⇒ span the entire membrane⇒ present in every membrane cells
Monotypic integral proteins ⇒ attached to only one of the lipidic layersIntegral proteins provide structure to the plasmatic membrane, but they do not maintain its strength.
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a propagation flat with dimensions of 18"x8"x2" has the following volume
Explanation:
Volume = 18×8×2 =288 (units)³.
please put the unit as follows in the question.
hope this helps you.
Enzymes are (a)__________ which speed up the biochemical (b)____________ in living organisms. The enzymes themselves are not changed in these reactions, that is they are biological (c)________. Enzymes are (d)_________- each one controls only one type of reaction. They are (e)_________by high temperatures and by extremes of ph.
Answer:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
Explanation:
Maybe this will help?
Enzymes are proteins that speed up the biochemical reactions in living organisms, and they are biological catalysts. Enzymes are substance-specific, each one controls only one type of reaction. They are denatured by high temperatures and by extremes of ph.
What are enzymes?Enzymes are biocatalysts made up of proteins, that increase the speed of the reaction.
Enzymes do not involve in the reaction and in the end of the reaction they separate from the reaction their substance is specific they are specific to reactions whose speed is increased by these enzymes.
In high temperatures and pH their structure changes as they are protein and with extreme where they also get the nature
Thus, the blanks are a. proteins, b. reactions, c. catalysts, d. Substance-specific, e. denatured.
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