Answer:
STEM CELLS
They serve as a repair system for the body.
I was wondering what kind of organism this is
and could u also help me name the labelled parts
Answer:
i think it's hydra but i'm not sure.
say - Aquatic animals posses air sacs.in their bodyies . Give reasons.
Explanation:
1. provides more efficient supply level of oxgen.
The biggest difference between elements and molecules is that elements only have one TYPE of atom, while molecules have MULTIPLE types of atoms. True or False
Answer:
the answer is true
Explanation:
el3m3nt is pure substance and is only made up of one type of atom it cabt be broken down into simpler substance
molecules form when two or more atoms form chemical bonds with eachother
The biggest difference between elements and molecules is that elements only have one TYPE of atom, while molecules have MULTIPLE types of atoms. The statement is true.
what is molecule ?
When two or more atoms are connected by a chemical bond will form a molecule.
The fundamental unit of element is atom, which consist of a nucleus and its surrounding electrons.
There are different types of molecules like diatomic molecules where only two atoms are combined. For example carbon monoxide (CO) made of a single atom of carbon and one of oxygen.
This diatomic molecule can be homonuclear diatomic molecule, like oxygen (O2) and nitrogen (N2).
Similarly another type called polyatomic molecules have more than two atoms, for example water (H2O) and carbon dioxide (CO2).
The molecular weight of a molecule is calculated by sum of total atoms' atomic weights present in it and represented by Avogadro's number (6.02214076 × 1023).
Learn more about molecule, here:
https://brainly.com/question/19556990
#SPJ2
A farmer decides to try to increase his profits by mating his two goats that produce the most milk together. The farmer’s descendants continue the process and over 400 years the family produces goats that make more milk than any in the country. Eventually the goats change enough that they are designated a new species. This is an example of:
A. Artificial selection
B. Acquired characteristics
C. Disruptive selection
D. Natural selection
Answer:
A.is the correct answer
Explanation:
People have been doing asimple form genetic enineeringfor thousands of years. This is called selective breeding. Selective breeding, or artifical selection, is a process where people try and improve plants and animals by selecting and breeding those that have desireable charactistics.
For example, a farmer might choose from his two largest cattle in his herd and breed them together so that the offspring will be even bigger and produce more meat.
Can bacteria break down plastics?
Give reason
Answer:
Yes, bacteria can break down plastics because they break down the molecules of the plastics into their original building blocks and by secreting an enzyme which “eats” the chemical bonds in the chain, the molecules are broken down into their smaller components.
B is wrong need help
Answer:
its A i think
Explanation:
trust me bro
why should we drink 6 to 8 glasses of water everyday even water does not provide any energy? pls answer in short
Answer:
√7-2√10x/√6-√2/1-√3-5/√5
PLEASE HELP. Explain how the earth is a system? The more detail you can provide, the better!
Answer:
The earth system is itself an integrated system, but it can be subdivided into four main components, sub-systems or spheres: the geosphere, atmosphere, hydrosphere and biosphere. ... The atmosphere receives energy from solar radiation which warms the earth's surface and is re-emitted and conducted to the atmosphere.
Answer:
When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Like its fellow terrestrial planets, Earth has a central core, a rocky mantle, and a solid crust. Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so much more. Earth is special because it is an ocean planet. Water covers 70% of Earth's surface.
Earth's atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe. The atmosphere also protects us from incoming meteoroids, most of which break up before they can hit the surface. Near the surface, Earth has an atmosphere that consists of 78 percent nitrogen, 21 percent oxygen, and 1 percent other gases such as argon, carbon dioxide, and neon.
The atmosphere affects Earth's long-term climate and short-term local weather and shields us from much of the harmful radiation coming from the Sun. It also protects us from meteoroids, most of which burn up in the atmosphere, seen as meteors in the night sky, before they can strike the surface as meteorites. Our planet's rapid rotation and molten nickel-iron core give rise to a magnetic field, which the solar wind distorts into a teardrop shape in space. (The solar wind is a stream of charged particles continuously ejected from the Sun.)
When charged particles from the solar wind become trapped in Earth's magnetic field, they collide with air molecules above our planet's magnetic poles. These air molecules then begin to glow and cause aurorae, or the northern and southern lights. The magnetic field is what causes compass needles to point to the North Pole regardless of which way you turn. But the magnetic polarity of Earth can change, flipping the direction of the magnetic field. The geologic record tells scientists that a magnetic reversal takes place about every 400,000 years on average, but the timing is very irregular. As far as we know, such a magnetic reversal doesn't cause any harm to life on Earth, and a reversal is very unlikely to happen for at least another thousand years. But when it does happen, compass needles are likely to point in many different directions for a few centuries while the switch is being made. And after the switch is completed, they will all point south instead of north.
Explanation:
Our home planet is the third planet from the Sun, and the only place we know of so far that’s inhabited by living things. While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal. The name Earth is at least 1,000 years old. All of the planets, except for Earth, were named after Greek and Roman gods and goddesses. However, the name Earth is a Germanic word, which simply means “the ground.” Earth is the only planet that has a single moon. Our Moon is the brightest and most familiar object in the night sky. In many ways, the Moon is responsible for making Earth such a great home. It stabilizes our planet's wobble, which has made the climate less variable over thousands of years.
Earth sometimes temporarily hosts orbiting asteroids or large rocks. They are typically trapped by Earth's gravity for a few months or years before returning to an orbit around the Sun. Some asteroids will be in a long “dance” with Earth as both orbit the Sun.
Some moons are bits of rock that were captured by a planet's gravity, but our Moon is likely the result of a collision billions of years ago. When Earth was a young planet, a large chunk of rock smashed into it, displacing a portion of Earth's interior. The resulting chunks clumped together and formed our Moon. With a radius of 1,080 miles (1,738 kilometers), the Moon is the fifth largest moon in our solar system (after Ganymede, Titan, Callisto, and Io).
The Moon is an average of 238,855 miles (384,400 kilometers) away from Earth. That means 30 Earth-sized planets could fit in between Earth and its Moon.
I Hope This Helps.
When organisms die, how does carbon re-enter the environment?
I. Carbon dioxide released during decay
II. Carbon monoxide when the dead material reacts with oxygen
III. Forms sedimentary rocks
IV. Forms fossil fuels
A. II, III, IV
B. I, II, III, IV
C. I and III
D. I, III, IV
Answer:
Forms sedimentary rocks
When any organism die, it releases carbon dioxide during decay, forms sedimentary rocks as well as fossil fuels. The correct option is D.
What is carbon cycle?The carbon cycle is nature's way of recycling carbon, which travel from the atmosphere into lifeforms on Earth and then back into the atmosphere.
During decay, formation of sedimentary rocks, and formation of fossil fuels, carbon re-enter the environment after an organism die.
The carbon cycle exemplifies how carbon moves among various reservoirs on Earth. This cycle is crucial for keeping Earth's breathable atmosphere and carbon balance.
Without carbon, there wouldn't be any life on Earth. This is largely attributable, in part, to carbon's ability to readily form bonds with other atoms, which allows for greater flexibility in the form and function of biomolecules such as DNA and RNA.
Thus, the correct option is D.
For more details regarding carbon cycle, visit:
https://brainly.com/question/1627609
#SPJ5
what is photosynthesis?
........
Answer:
Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
Explanation:
Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
Explanation:
photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.[tex]\pmb{ }[/tex]
Conrad is studying for class. To remember the term _____, he uses the analogy of a thermostat in a house. For instance, when the temperature falls below the set point, the heat will turn on to correct the temperature. allostasis epistasis homeostasis biostasis
Answer:
Think its homeostasis
Explanation:
How did the x-ray evidence produced by Rosalind Franklin contribute to Watson and Crick’s discovery of the structure of DNA?
Answer:
Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. ... Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things.
hope it's help you...!!!
plz mark as brain list and follow me #rishu...!!!
Answer:
Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. ... Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things
Explanation:
Hope it will help you
Describe what makes the Möbius strip different from a strip of paper taped in a circle
10 pc
Tiffany wants to know the effect of eating sugary snacks on
performance in PE class. She decides to set up an experiment to find
out. Which of the following groups of individuals would be in the
control group?
n
Students who take a PE class at their school.
Students who take a PE class and who will not be eating sugary snacks before PE
class.
Students who take a PE class and who will be eating sugary snacks before PE class.
Students taking any class at school eating any food.
Answer:
Students who take a PE class and who will be eating sugary snacks before PE.
Explanation:
The control variable (or control group) is an experimental element which is constant or unchanged throughout the course of the experiment.
The option "students who take PE class and who will be eating sugary snacks before PE" will remain unchanged and constant because the whole point of the experiment is to see the effects on students performance in PE after eating sugary snacks.
Hope this helps :)
what is PM 2.5 and how does it affect people?
why heart is vrey important.
Answer:
It is important because if our heart isn't there we people can't survive if for a second to our heart doesn't beats then we won't survive it's really important
The heart is important because it pumps blood around your body, delivering oxygen and nutrients to your cells and removing waste products.
Some birds on the Galapagos Islands build nests in trees, while others hide eggs in rock crevices. What could account for this difference in nesting behaviors?
Answer:
Food habits, predators.
Explanation:
The biggest reasons are food habits and predators, most birds who nest on the ground either can't fly or use this to be closer to their food. A ground bird (Like quail) can fly but choose to be more ground-based birds.
Most of the time it's because these birds forage for food like ground insects, seeds from the brush that grows on the ground, or fallen fruit.
Most birds that live in the trees feast on seeds, leaves, or insects found close to where they choose to nest. They may also want to escape any predators that may be towards the ground.
what is force? pls answer my question
Answer:
Strength or strength, which is an ability of the human physical condition that is needed in increasing the achievement of learning motion. ... Harsono (1988: 47) defines strength as energy to fight a resistance or the ability to generate tension
Explanation:
sorry if wrong (◠‿◕)
Along the inferior surface of the liver are several structures that collectively resemble the letter H. The ______ and the round ligament of the liver form the vertical superior parts of the H; the inferior vena cava and the ligamentum ______ form the vertical inferior parts.
Along the inferior surface of the liver are several structures that collectively resemble the letter H. The gallbladder and the round ligament of the liver form the vertical superior parts of the H; the inferior vena cava and the ligamentum venosum form the vertical inferior parts.
The gallbladder is a pear-shaped organ localized on the right side of the body, directly under the liver. This organ functions to store a digestive fluid called bile until it's needed for digestion.The round ligament of the liver (also called ligamentum teres hepatis) is a remnant of the fetal umbilical vein. This ligament is part of the coronary ligament of the liver.The ligamentum venosum (also called the hepatogastric ligament) is a deep cleft on the posterior surface of the liver. It is a fetal remnant ligament attached to the left branch of the portal vein within the porta hepatis.Learn more in:
https://brainly.com/question/173445?referrer=searchResults
Why does scattering of light occur ?
what is variable motion?Explain with example.
Answer:
Variable Motion. different distances traveled in equal times. The speed of the object is changing. Periodic Motion.
Explanation:
Explanation:
variable motion occurs when a body covers unequal distances in equal intervals of time in a specified direction. Example: A rotating fan at a constant speed has variable velocity, because of continuous change in direction.
High-latitude ocean water tends to support large planktonic communities because ________. of higher dissolved carbon dioxide there are fewer predators that feed on plankton there is abundant light of the longer summer day length of higher dissolved oxygen and nutrient concentrations
Answer: They tend to support large planktonic
communities because (of higher dissolved oxygen and nutrient concentrations).
Explanation:
Planktonic communities are made up of basic organisms that forms the oceanic food web. They are broadly divided into Phytoplankton (these are the producers), Zooplankton (these are the consumers) and Bacterioplankton (these are the recyclers).
High-latitude ocean water is mostly affected by the quantity of oxygen and nutrients it contains. Large planktonic communities thrives in these aquatic environment because is contains higher amount of dissolved oxygen and nutrient concentrations which forms part of their basic needs for survival. This is so because changes in ocean water can impact all levels of the food web. Increase or decrease in ocean temperature can modify the plankton diversity and distribution directly by altering it's metabolic rates and growth.
Therefore due to the geographic location of high latitude ocean, higher dissolved oxygen and nutrient concentrations favour the survival of a larger planktonic communities than other ocean parts.
Produces proteins drop down menus
Explanation:
Ok, then what do you need explanation for that ??
Superficial similarities in structures that have the same function can seem like they are evidence of a common ancestor, but they are not. An example of this is the convergent evolution of wings in insects as well as in birds. What are these types of structures called
Answer:
Distinguishing between Similar Traits
Similar traits can be either homologous structures that share an embryonic origin or analogous structures that share a function.
LEARNING OBJECTIVES
Explain the difference between homologous and analogous structures
KEY TAKEAWAYSKey PointsOrganisms may be very closely related, even though they look quite different, due to a minor genetic change that caused a major morphological difference.Unrelated organisms may appear very similar because both organisms developed common adaptations that evolved within similar environmental conditions.To determine the phylogeny of an organism, scientists must determine whether a similarity is homologous or analogous.The advancement of DNA technology, the area of molecular systematics, describes the use of information on the molecular level, including DNA analysis.Key Termsanalogous: when similar similar physical features occur in organisms because of environmental constraints and not due to a close evolutionary relationshiphomologous: when similar physical features and genomes stem from developmental similarities that are based on evolutionphylogeny: the evolutionary history of an organismmolecular systematics: molecular phylogenetics is the analysis of hereditary molecular differences, mainly in DNA sequences, to gain information on an organism’s evolutionary relationships
explain how bacteria cam develop resistance to an antibiotic?
Explanation:
Bacteria develop resistance mechanisms by using instructions provided by their DNA. Often, resistance genes are found within plasmids, small pieces of DNA that carry genetic instructions from one germ to another. This means that some bacteria can share their DNA and make other germs become resistant.
hope this helps you
have a nice day
What adaptation do seeds dispersed through ballistochory have?
a)
sail-like structure
b)
smooth and aerodynamic
c)
hollow on the inside
d)
pleasant smell and taste
Answer:
smooth and aerodynamic
Explanation:
Seeds are usually smooth, like a baseball, so that they cut smoothly through the air and don't have a lot of wind resistance.
The adaptation that seeds dispersed through ballistochory has smooth and aerodynamic. The correct option is b.
What are adaptations?Adaptation is a biological process that is done by many plants and animals to survive in given conditions. Adaptation is causing the partial or full change in their body or functions to match with the environmental conditions.
Plants with ballistochory means possibly ejects by the seeds full stop this adaptation or evolution happened in which seats are dispersed into many tentacles and seats are dispersed into soils for pollination this comes under wind dispersion.
Seeds launch an angle and release the elastic energy store in the fruit. These adaptations are smooth.
Therefore, the correct option is b. smooth and aerodynamic
To learn more about ballistochory, refer to the below link:
https://brainly.com/question/24148239
#SPJ2
3.
Read this sentence from the passage.
The tortoises which live on those
islands where there is no water,
or in the lower, arid parts of
the others, feed mainly on the
succulent cactus.
The word succulent MOST LIKELY
means
A. dried out.
B. chunky.
C. moist.
D. tough.
??/cancer is a disease which kills millions of people each year.Find out relationship between cancer and cells
Answer:
in contrast to normal cells,cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor /(cancer)
describe the process of digestion in a person who had beans for lunch time
Answer:
The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation. The first of these processes, ingestion, refers to the entry of food into the alimentary canal through the mouth.
Which of the following is the primary method of controlling citrus canker?
quarantine and destruction of infected plants
treatment with fungicides
genetic modification of plant stock
treatment with herbicides
Answer:
genetic modification of plant stock
