Answer:
The process of peristalsis is controlled by the medulla oblongata. Esophageal peristalsis is typically assessed by performing an esophageal motility study.
Explanation:
Darwin's theory of natural selection
Darwins theory of evolution by national selection
more individuals are produced each generation that can survive. phenotypic variation exists among individuals and variation is heritable
On the bottom of trophic pyramids are ____
1) secondary consumers
2)producers
3) decomposers
4)primary consumers
Why was the geocentric model of the solar system accepted by scientists for many years? Select the two correct answers.
A. The model described the solar system correctly.
B. The model accurately predicted the movements of the planets.
C. Suitable technology was not available to disprove the model.
D. Observations with telescopes confirmed the predictions made using the model.
PLEASE HELP WITH MY BIOLOGY
I think A makes the most sense..
(a) Describe why monitoring the growth rate of the E. Coli-M bacteria is a useful indicator of the effect of the glycolytic enzyme mutation on the bacteria.
Answer:
The monitoring the growth rate of E.Coli bacteria is a useful indicator of the effect of glycotic enzyme mutation on the bacteria as the flow of intracellular metabolic components depends on the availability of carbon. Hence the change in carbon source can change the glyclyotic enzyme mutation up or down.
Explanation:
Continuous culture is a method that can be used by the researchers for determining whether mutation affects the growth rate of E.Colin-M bacteria
If the growth medium contains higher concentration of acetate,then the growth of the bacteria will be inhibited without inhibiting its central metabolism.
When E.Coli grows ,it secrets acetate. This mechanism is called overflow mechanism. Regulatory interactions mediated by acetyl-phosphate plays a major role in inhibiting growth by acetate. The uncoupling effect of organic acids or perturbation of the anion composition of the cell is a major reason for growth inhibition.
What is another name for the photic, or sunlight, zone of the ocean
Answer:
sunlit zone or the euphotic zone
Explanation:
The highest layer of the world's seas is washed in daylight during the daytime. This brilliant sea layer is known as the sunlit zone or the euphotic zone (euphotic signifies "sufficiently bright" in Greek) or the epipelagic zone (epipelagic signifies "upon the ocean")
True or false: when we say "left" we are talking about the doctor's point of view when looking at the heart
Answer:
I think the answer might be false. Im not 10% sure. Good luck though!
Explanation:
Is there a 100% chance that the puppies will have solid fur?
How do sea stars move?
Answer:
u mean starfish
Explanation:
they have like little tenticles on their front side of their fins? ig and they stick to the ground and move.
Answer:
By moving water from the vascular system into the tiny feet, the sea star can make a foot move by expanding it. This is how sea stars move around. Muscles within the feet are used to retract them. Each ray of a sea star has a light sensitive organ called an eyespot.
Explanation:
Hi! How are you?
1. Some gaseous pollutants bond with water to form little droplets known as _________.
a.Rainfall
b.Water droplets
c.Pollution
d.Aerosols
2.Which size of pollution particle is most dangerous to human health?
a.Large particles (10 micrometers wide or more)
b.Medium sized particles (3-10 micrometers wide)
c.Small particles (less than 3 micrometers wide)
d.None, because pollution is not hazardous to human health
3.Which pollutants are hazardous to human health?
a.Sulfur dioxides
b.Carbon Monoxide
c.Volatile organic compounds (VOCs)
d.All of the above
Answer: 1. Aerosols 2. Small particles 3. All of the above.( all of those chemicals are harmful to humans)
Explanation: I took the test :D Here you go!
Which of the following would NOT increase the rate at which something dissolves? *
A. increase temperature
B. decrease temperature
C. crush solute
D. stir the solution
Answer:
B
Explanation: Decreasing the temperature will not make the increase rate at which something dissolves quicker it would only make it go slower.
Which best describes the density of Earth's layers?
O The crust is the most dense because it is the top layer.
O The mantle is the most dense because it is the thickest layer.
The outer core is the most dense because it is the only liquid layer.
O The inner core is the most dense because it is under the most pressure.
Answer:
Explanation:
propose a definition for digestion using the following terms; nutrients, food, liquids, solids, transformation and digestive juices
Answer:
Large solid food particles are breakdown into small simper food molecules.
Explanation:
Digestion is the process in which large solid food particles are breakdown into small simper food molecules so that they can be absorbed by the body and added to the blood plasma. These simpler molecules are absorbed by the cells to generate energy in the form of ATP. This transformation from solid food particles into simpler molecule through mechanical and chemical digestion. Mechanical digestion starts from the mouth in which the sold big particles are changed into smaller pieces with the help of teeth while on the other hand, the chemical digestion occurs through digestive juices that helps in break down.
Which of these would be considered low
pressure?
a) 850 mb
b) 1200 mb
Answer:
A
Explanation:
The general rule in meterology is that low pressure is under 1,000 mb
Which of the following factors is used to define the climatic zones as tropical, temperate and polar
Answer:
temperature
Explanation:
and this climate zone the warmest months average less than 10° Celsius the North and South Poles have climates that are polar because of the nearby cold air masses for climate region near the equator with warm air mass is is known as tropical so there's more has to do with temperature
Please some one help ASAP no links please
Answer: I think it is c
Explanation:
HELPPPP 30 PTS AND BRAINLY!!! 5 MULT. CHOICE PROBS WITH REASONING PLEASEE
Answer:
I know proteins are made in Ribosomes so I would say the Rough Enplopasmic whatchacall it
Explanation:
uhhh i took biology, sorry thats the only one i an help on its been a while
Two bodies of water that are approximately the same size depth and latitude are found to have a large difference in the number of species inhabiting them what is likely the contributing island biogeography factor resulting in a difference in the number of species found in each body of water?
Answer:
Due to the presence of suitable environment.
Explanation:
Suitable environmental conditions are responsible for the presence of large amount of species in water bodies because suitable environmental conditions provides necessary materials for the growth and survival of organisms. The marine environment that have sufficient amount of food, space, optimum temperature, pH and salt concentrations so in this environment more number of species are present due to increase in population as compared to those ecosystem having harsh environmental conditions.
The body systems most involved in jogging activity data are the
Explanation:
There are many different systems involved in when we exercise, the three main ones are the Respiratory system which is involved in breathing the circulatory system which is about circulation of blood around the body and finally the muscular system and finally the Muscular system which is about how we move.
which of the following events is most likely to result in conditions suitable for primary succession?
Answer:
An earthquake , a forest fire , a hurricane and a volcanic eruption.
Explanation:
An earthquake , a forest fire , a hurricane and a volcanic eruption are the events that is responsible for the suitable conditions for primary succession because all the population of animals and vegetation are removed from an area and the new type of organisms is start to living in that new environment. These new organism has the ability to survive that environmental conditions. These events completely removed the population in the environment and provides conditions for primary succession.
Answer:
Volcano eruption
Explanation:
Took the test
Which of the following explains why geological events occur?
a The lower mantle is solid rock
b The crust is the same thickness throughout
c The crust is a single layer throughout
d The lower mantle is hotter
Answer:
Hey there,
The answer is A.
This is because the crust is broken into parts called plates and these plates collide with each other or separate from each other or slide past each other.
They move because they sit on top of semi molten rock in the mantle. The semi molten rock moves due to convection currents which is heated up by the core.
It’s is not option B because it does not have u form thickness through out it. For eg the continental crust is 60 km thick while the oceanic plates are wonly 10km thick.
It is not C as the mantle is semi molten not solid.
And it’s not D because it’s not a single layer but multiple layers.
So A is the answer.
I hope this helps!
Explanation:
Cells get energy from minerals like sodium and potassium true or false
Answer:
cells can get energy from minerals
Explanation:
True
Plz answer it’s due today
The theory of natural selection occurs in 4 steps. Overproduction, Variation,
Selection, and what else?
Answer:
Overproduction, Variation, Selection, and Competition
How is the circulatory system like a network of highways?
If the blockage is removed from the blood vessel, what will happen to blood flow after removal?
Answer:
Normally, blood flows freely through your blood vessels, arteries, and veins. Your arteries carry blood with oxygen and nutrients to your body. Yours veins carry waste products back to the heart. In some cases, the blood thickens and clumps to form a blood clot in one of these vessels. This can block the blood flow. When blood flow is blocked, nearby tissues can be damaged.During a surgical thrombectomy, a surgeon makes an incision into a blood vessel. The clot is removed, and the blood vessel is repaired. This restores blood flow. In some cases, a balloon or other device may be put in the blood vessel to help keep it open.
Which term describes the number of different species in an area?
Responses
A. Ecosystem
B. Habitat
C. Biodiversity
D. Biome
Answer:
Biodiversity
Explanation:
Biodiversity is the variety of life in a habitat or ecosystem
Yo plz help no links
High _________ and pressure are needed to form a metamorphic rock.
a. erosion
b. crystallization
Answer:
A. Erosion
Explanation:
A metamorphic rock takes a long time to form because of its shape and form. Therefore, the answer would be erosion.
Answer:
Erosion
hope this helps
have a good day :)
Explanation:
Physical description of a cell membrane?
Answer:
Cell membrane
Explanation:
A cell membrane is basically a protection of the cells. It controll what goes in and out of the cell and separates the interior of the cell from the outside environment. they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, etc that mediate cellular activities to pass between organelles.
How do genes code for traits
Answer:
A gene codes for a particular protein that is involved in the expression of a trait.
Explanation:
I hope this information is correct and helps you!
where in the fossil record would you expect to see older common ancestors
How would gradualism persent in the fossil record
Answer:
hii
Explanation:
what are you doing
how are you doing