The earliest vertebrates that use to resembled are hagfish and lived more than 500 million years ago. As other classes of fish appeared, they evolved traits such as a complete vertebral column, jaws, and a bony endoskeleton.
What are Amphibians?Amphibians were the first tetrapod vertebrates as well as the first vertebrates to live on land. Segmentation is a part of characteristic of the body plans of various goup of animals including the annelids, and recently developed vertebrates. There are three different segmental systems origin in development of the vertebrates that are - the somites, the rhombomeres and the pharyngeal arches.
There are several benefits of the segmentation development and these are the different type of anatomical and morphological developments are helps in facilitate specific functions are led by the segmented body.
The Paraxial mesoderm also have segmentation that helps in lateral movement and It has been also helps in the consistent and fast interaction or communication in the neuronal system.
Therefore, The earliest vertebrates that use to resembled are hagfish and lived more than 500 million years ago. As other classes of fish appeared, they evolved traits such as a complete vertebral column, jaws, and a bony endoskeleton.
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PLEASE I NEED HELP ASAP!! Pls help!
Answer:
i cant see it
Explanation:
During which two months do both the Northern and Southern Hemispheres receive the same amount of energy from the Sun? December and June January and July March and September May and November
Answer:
Answer C
Explanation:
The answer is March and September
Both Northern and Southern Hemispheres receive the same amount of energy from the sun in March and September
EquinoxesIt is a phenomenon that is used to describe a period during which both the Southern and Northern Hemispheres receive the same amount of energy from the sun.
During this period, the declination of the sun is at the equator. thus, both sides of the Hemisphere receive an equal proportion of the sun both in duration and energy magnitude.
Equinoxes occur twice in a year - March and September
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what trophic level is the western diamond rattlesnake
Answer:
Tertiary level
Explanation:
please help me please help me
Answer:
b
Explanation:
What BEST describes the roles of photosystem I and photosystem Il in the process of photosynthesis?
Answer:
Photo system 1 = Light
This is the presence of sunlight, whereby Chlorophyll is used to trap sunlight energy to split water molecules into hydrogen ions and hydroxyl ions also NADP is reduced by the addition of hydrogen to form NADH
Photo system II: Dark stage
It happens when there is abscence of light where by CO2 ingested by plants react with hydrogen atoms from the light stage to form the Emperial Formula of simple sugar. Also Hydroxyl ions (OH -) is furtherly broken-down to oxygen & molecules.
Photosynthesis is the process in which green plant manufacturer their food in the presence of Sunlight ND chlorophyll. Where CO2 (Carbon [iv] oxide) and water (H2O)
Explanation:
:))❤
. Describea typical stress-strain curve and the relationship between the segments of the curve and stress and strain.
Answer:
the relationship between stress and strain that a particular material displays . it's unique for each material . it's is found by recording amount of strss at different values of strain. it is the stress point at which a specific material breaks under a given stress in a typical stress-strain curve , the breaking strength is less than the ultimate strength
Explanation:
The typical stress-strain curve and the relationship between the segments of the curve and stress and strain explain the relationship between these two as the Stress is the result of the force applied, and strain is the deformation of a material in response to stress.
What is the significance of the stress-strain curve?A typical stress-strain curve has several segments, including the elastic region, which represents the stiffness of the material, and the plastic region, which represents the point at which the material begins to permanently deform. Necking: a reduction in cross-section; ultimate strength, then a material's ability to deform until it reaches its ultimate strength, and so on.
Hence, the typical stress-strain curve and the relationship between the segments of the curve and stress and strain explain the relationship between these two as the Stress is the result of the force applied, and strain is the deformation of a material in response to stress.
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What happens to carbohydrates in fruit as they ripen? Make sure you explain the different carbohydrate molecules in the two stages of bananas and how that makes them taste.
Answer:
What happens to carbohydrates in fruit as they ripen is explained below in details.
Explanation:
As the fruit ripens after produce, the sucrose content develops only somewhat, while glucose and fructose progress in parallel, to enhance the principal sugars in ripe fruit. Carbohydrates are very essential in horticultural products because of their supplement to texture, flavoring, coloring, and nutritional value.
20 POINTS What role do animals have in the carbon cycle?
Group of answer choices
use water and release oxygen
use sugar and release carbon
use carbon and release oxygen
use carbon and release nitrogen
Answer:
d or c
Explanation:
Describe what is happening to Europe’s population size in terms of birth rates and death rates.
Answer:
The situation in Europe is very complicated with the birth rates and death rates, as well as emigration and immigration. In all of the European countries the death rate is bigger than the birth rate, except for Ireland, Albania and Kosovo. The situation with the birth rate is most critical in Western Europe were most of the countries are below 1.6 children per family.
Explanation:
Diurnal animals are active
Answer:
During the day time
Explanation:
Diurnal animals are active during the day time and are inactive at night.
A wide range of animals fall into this category. Examples are human beings, chipmunks, goats, sheep etc.
As the sunrises, diurnal animals begins to get up and as the sun set, their activities reduces and they become inactive.
seeds that are planted upside down are still able to grow into mature plants which explanation best explains this phenomenon?
Answer:
This question is incomplete but the completed question is below
eeds that are planted upside down are still able to grow into mature plants. Which explanation best explains this phenomenon?
(a)The roots change into branches, and the branches turn into roots.
(b)The roots grow toward the force of gravity, and the shoots grow away.
(c)The plant will become a smaller version of a mature plant.
(d)Roots always grow toward the dark, and shoots grow toward the light.
Two options appear to be correct here: options B and D
Explanation:
Regardless of the direction the seed is planted, the seed has the ability to re-position itself via the help of growth hormones that respond to gravity and redirect the seed into the proper orientation. However, after re-orientation of the seed, the root grows toward the direction of gravity (a process known as gravitropism) while the shoot grows toward the direction of sunlight (a process known as phototropism). Even though two options appear to be correct here, the most correct option based on he question is b
Humans, plants and mushrooms are alive. What do these have in common?
Answer:
Humans, plants, and mushrooms all are made of cells. Humans, plants, and mushrooms also maintain homeostasis. Mushrooms and animals share a similar chemical called fungi
Which factor increases as a result of increasing altitude? air pressure, air density, height of sea level or space between gas molecules
Answer:
space between gas molecules
Explanation:
as the altitude increases the air density decrease because of weaker gravity and these led to more distant of air molecule and the space between gas is increased
As the altitude increases the air density decrease because of weaker gravity and these led to more distance between air molecule and the space between gas is increased.
The answer is option D.
What is the effect of the increase in height?As the height increases, the pressure increases. - As the height increases, the air density increases. - Air pressure and congestion are very low at sea level. - Heavy air is more pressurized than small dense air.
Why does the pressure rise at higher altitudes?The gravitational pull between the earth and the air atoms is much larger than those distant molecules - they are heavier - pull them closer and increase the force (energy per unit) between them.
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If more airplanes and cars are used (both of which burn fuels) carbon levels will decrease ?
Answer: If the question is "would the carbon levels decrease?" then they would not, they would increase.
Explanation: More airplanes and cars would burn fossil fuels, and release more carbon dioxide, increasing carbon levels, not decreasing them.
How has molecular evidence affected our understanding of modern evolutionary theory?
Answer:
It supports anatomical evidence and provides more information with details for specific relationships. It provides evidence that lineages stopped evolving about four million years ago.
Explanation:
Which equation best represents the aerobic respiration reaction?
The chemical equation which best represent an aerobic respiration reaction is: D. Glucose + Oxygen -----> Carbon Dioxide + Water + ATP.
An aerobic reaction can be defined as both biological and chemical processes that generally takes place in the presence of oxygen.
This ultimately implies that, an aerobic reaction requires oxygen before it can occur.
On a related note, an aerobic respiration reaction refers to how the body of a living organism uses oxygen such as;
Running. Swimming. Walking. Jogging.Basically, the two main reactants (inputs) reactants for an aerobic respiration reaction include:
Glucose.Oxygen.Conversely, the end products of an aerobic respiration reaction are:
Carbon dioxide.Water.ATP.In conclusion, the chemical equation which best represent an aerobic respiration reaction is:
[tex]Glucose + Oxygen ---> Carbon \;Dioxide + Water + ATP[/tex]
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The equation that best represents the aerobic respiration reaction is: Glucose+ oxygen→ Carbon Dioxide+ Water+ ATP.
In this equation, glucose (C6H12O6) is oxidized in the presence of oxygen (O2) to produce carbon dioxide (CO2), water (H2O), and energy. This is the process of aerobic respiration, which occurs in the mitochondria of cells to generate energy for cellular activities.
Vigorous breath is the organic cycle where food glucose is changed over into energy within the sight of oxygen. The majority of mammals, birds, humans, and plants use this kind of respiration.
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HELP!!! MARKING BRAINLIEST
Answer:
6.) The stroma!
7.) Wavelengths of 430nm(blue) and 662nm(red). ( It reflects green light strongly so it appears green to us. :) )
8.) Glucose is used by plants for energy and to make other substances like cellulose and starch. (Cellulose is used in building cell walls.)
9.) Animals either eat plants to obtain chemical energy in the form of glucose or they eat other animals that ate plants. So, energy moves from the Sun to plants to animals. Animals also use oxygen released by the plants to breathe.
what is a ecosystem
Explanation:
it's pretty much a community of any living organism that live and interact with eachother depending on a specific environment
what is the origin of abortion?
Answer:
The first recorded evidence of induce abortion is from the Egyptian Ebers papyrus in 1550 BCE . many of the methods employed in early cultures were non-surgical. physical activities such as: strenuous labor , climbing , paddling , weightlifting , or driving were a common techniques.
How do enviornmental factors affect the abundance of traits within a population?
Answer:
Explanation:
many things can affect traits within a population some examples of this is
abuse, negative emotions, drugs, synthetic substances, temperature, and light are among the outer ecological variables that can figure out which qualities are turned here and there, in this way impacting the manner in which a life form creates and works.
and no I did not copy this from online
Which is an example ofa polygenic trait? eye color, which is controlled by many interacting genes a cow’s spot pattern, which is controlled by two dominant genes a plant’s pink flowers, which is controlled by two incomplete genes a plant’s green seeds, which is controlled by one dominant gene
Answer:
eye color
Explanation:
Answer:
eye color, which is controlled by many interacting genes
Explanation:
Which method of heat transfer is due to the transfer of kinetic energy from one molecule to another?
a Conduction
b Convection
c Evaporation
d Radiation
Answer: A) Conduction
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MARKING BRAINLIEST HELPPPP
Answer:
1.CO2 comes from the composition of air. water from the soil and light from sun.
2.energy is absorbed in form of light - endothermic
3. glucose + oxygen
4. the chemical equation is balanced on both sides
Where is the foramen in this diagram of a bone from the vertebral column?
A.
option A
B.
option B
C.
option C
D.
option D
Answer:
C. option C
Explanation:
ON PLATO I made a 100%
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Once a month, Esteban helps his sister with a newspaper route. He gets paid $20 for his work. After his first day helping, he wanted to buy himself a baseball video game. Instead, he bought his sister a gift for her birthday. Read the scenario and use the drop-down menus to answer the questions that follow. What is the opportunity cost of Esteban’s decision? What resource prevented Esteban from getting both a video game and a gift?
Answer:
Its c
Explanation:
Its correct because i big brain Ф⊥Ф
Answer:
What is the opportunity cost of Esteban’s decision?
✔ video game
What resource prevented Esteban from getting both a video game and a gift?
✔ money
Explanation:
hope this helped
CAN ANYONE HELP ME PLEASE WITH THE QUESTION ABOVE
Answer: B. Most owls have evolved to hunt at night, and most hawks hunt during the day so that competition is reduced.
Explanation: Hawks hunt in the day, owls hunt in the night. Despite both predators having similar diets, because they hunt at different times the competition is reduced, this is the outcome of them changing their niches to have opposite hunting times.
Which of the following is different between polar and
nonpolar molecules?
The presence of charges on the atoms
The presence of covalent bonds
The number of atoms in the molecule
The number of electrons shared
Please answer fast
Answer:
the number of electrons shared
How can someone become paralyzed after motor nerves work cut?
Hello everyone! I hope you have an amazing rest of your week.
I have attached a screenshot that I hope will allow you to answer my question. Please only answer if you are positive that you are correct.
Thank you!!!!!
Answer:
a) true
b) false
c) true
d) false
e) false
Explanation:
hi im taking ap biology and it's not my best subject but here r my reasonings:
a) inhibitors decrease the rate of reactions in general, so i would assume that increasing the number of inhibitors would decrease the overall rate or reaction
b) it's false bc allosteric inhibitors bind to a place on the enzyme other than the active site. u can see on the figures that the blue-green allosteric inhibitor is in a place other than the active site at the top
c) because allosteric inhibitors bind to a different place on the enzyme, this often results in an formational change in the enzyme. bc of this change in shape of the enzyme, this can rly prevent the substrate from binding to the active site
d) i dont think adding a competitive inhibitor will increase the number of products bc competitive inhibitors decrease the reaction rate by blocking substrates from binding to the active site :/
e) false bc competitive inhibitors do not bind to the substrates; they bind to the active sites, thus blocking the substrate from entering the active site. u can see this in the blue-green square at the top figures
Answer them please thanks.