Answer:
The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history. In land animals the respiratory surface is internalized as linings of the lungs. Gas exchange in the lungs occurs in millions of small air sacs; in mammals and reptiles these are called alveoli, and in birds they are known as atria. These microscopic air sacs have a very rich blood supply, thus bringing the air into close contact with the blood. These air sacs communicate with the external environment via a system of airways, or hollow tubes, of which the largest is the trachea, which branches in the middle of the chest into the two main bronchi. These enter the lungs where they branch into progressively narrower secondary and tertiary bronchi that branch into numerous smaller tubes, the bronchioles. In birds the bronchioles are termed parabronchi. It is the bronchioles, or parabronchi that generally open into the microscopic alveoli in mammals and atria in birds. Air has to be pumped from the environment into the alveoli or atria by the process of breathing which involves the muscles of respiration.
Explanation:
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explain how identical and non-identical twins happen
be quick
Answer:
one fertilised egg splits and develops into two babies with exactly the same genetic information.
Explanation:
What happens to a CO2 molecule when an infrared wave hits it?
The energy from the photon causes the CO2 molecule to vibrate. Some time later, the molecule gives up this extra energy by emitting another infrared photon. Once the extra energy has been removed by the emitted photon, the carbon dioxide molecule stops vibrating.
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Explanation: C.) DNA polymerase
What is the role of ribosomes in protein synthesis?
A they provide a source of amino acids
B_ they provide a site for transfer RNAs to link to messenger RNA to bring amino acids together
C_ they translate the basic DNA code using transfer RNA
D_ they carry the proteins to their site of action
Marcus left his candy bar on the counter so he would have a treat after school. When he arrived home, he saw that the candy bar was half eaten. What did Marcus know from the evidence he got by observing the candy bar?
a. The environment interacted with Marcus’ candy bar.
b. An organism interacted with Marcus’ candy bar
Answer:
b
Explanation:
because something interacted with the candy bar, so thats why its half eaten (sorry i dont have good explanations-)
How many years ago is .3 million years?
How about .02 million years?
Answer:
300 000 Years is .3 years
200 000 Years is .2 years
(hope this helped if ya need more dm me on discord AkashTheMissle07#3880)
Explanation:
0.3 year ago is three hundred thousand year ago and 0.2 year ago is two hundred thousand year ago.
What is year?Every planetary body has an orbital period, it is called as a year. when earth complete its one orbit around sun, we call it a year. Due to earth's axis, we experience seasonal changes throughout a year.
The earths rotation period is approximated into number as calendar. The modern calendar is called as Gregorian calendar represents 365 days of year, or 366 days of a leap year.
To denote period, loosely associated with it, year is used. Most civilized types of calendar used are Gregorian calendar, it uses two notions, to indicate numbering of year, AD is short form of "Anno Domini" (meaning "in the year of the Lord"), and CE is short form of "Common Era".
So basically 0.1 million year refers to 1000 000 year ago, therefore 0.3 year is 3000 000 and 0.2 is 2000 000 years.
Learn more about year, here:
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What planet was calculated to exist before it was actually seen?
Answer:
The planet NEPTUNE was mathematically predicted before it was directly observed.
What factor will most likely decrease the rate of glucose production
Answer:
The rate of photosynthesis would decrease and less glucose would be produced. ATP is considered to be an energy carrier molecule.
Explanation:
hope this helps :)
01 Multiple Choice
Apoptosis could result in
a) eliminating the webbing between fingers during human development,
b) uncontrolled cell growth.
c) an increased cell surface area to volume ratio.
d) cell division.
Answer:
D cell division hope that helps you out good luck
Which size cells are more efficient at obtaining nutrients?
How did scientists draw boundaries around the plates?
Answer: By plotting the locations of earthquakes
Explanation:
Most sedimentary rocks form:
layers
large crystals
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Answer:
The answer is option A: layers
help, will give brainlist!
Answer:
Predator and prey.
Explanation:
Answer:
B. Predator and Prey
Why are cells, tissues, organs, and organ systems all important for a living body?
Answer: Because each one of them helps other organs, cells, etc.. Because everything in your body needs to work together. For example, one of the most important functions of organ systems is to provide cells with oxygen and nutrients and to remove toxic waste products such as carbon dioxide.
1. Explain why elements tend to form bonds in compounds and provide two examples of how they can do that.
2. Difference between polar and non-polar molecule.
Transcription is A. The process of making RNA from DNA. B. The activation of a gene that produces proteins. C. Irreversible changes to the DNA sequence. D. The process of making proteins from RNA
Answer: A. The process of making RNA from DNA.
Explanation:
The transcription can be defined as the process of transfer of genetic information from DNA or deoxyribonucleic acid into messenger RNA. For this double strands of DNA are separated and each strand act as a template strand for the synthesis of mRNA. The transcriptions is initiated by the enzyme RNA polymerase. The enzyme RNA polymerase utilizes DNA for synthesizing the matching complementary bases. The mRNA molecule get elongated and serves as a blueprint for the synthesis of protein in translation.
what causes biodiversity?
Answer:
temperature, altitude, precipitation, soils, and their relation with other species.
Answer:Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services. Recreation—many recreational pursuits rely on our unique biodiversity , such as birdwatching, hiking, camping and fishing.The various factors that influence biodiversity include -temperature, altitude, precipitation, soils, and their relation with other species. For instance, ocean biodiversity is 25 times lesser than terrestrial diversity. Biodiversity also increases its form as it moves from the poles towards the tropics.
8 Major Causes of Biodiversity – Explained!
Habitat Loss and Fragmentation: A habitat is the place where a plant or animal naturally lives. ...
Over-exploitation for Commercialization: ADVERTISEMENTS: ...
Invasive Species: ...
Pollution: ...
Global Climate Change: ...
Population Growth and Over-consumption: ...
Illegal Wildlife Trade: ...
Species extinction:
8 Major Causes of Biodiversity – Explained! - Biology
What are three reasons for biodiversity?
DisplayTitle Why Save Biodiversity?
Moral reasons. ...
Aesthetic reasons. ...
Providing important natural functions. ...
Biodiversity provides actual and potential material and economic benefits to people.
Continuance of evolutionary processes.
Insurance.
Explanation:
hope this helps and have a nice night
Free 10 points! Right Answers Only!
Answer: C, A, D
Explanation:
lemme get brainliest bruv
Answer: The answers are the following:
1.C
2.A
3.D
Explanation:
Which student identified the correct step and the result of that process?
Frank claims step 1 is DNA replication which produces proteins needed by the organism to grow and develop
Emma claims step 2 is transcription, resulting in a double stranded RNA molecule needed for translation in the nucleus
Francine claims step 3 is translation which produces the mRNA strand by reading and pairing bases to the DNA template
Tyrone claims step 4 is the production of amino acids, which will form proteins, resulting in the expression of genes found in DNA
Answer: Emma claims step 2 is transcription, resulting in a double stranded RNA molecule needed for translation in the nucleus
Explanation:
The imaginary line running through the center of Earth from the North Pole to the South Pole is called the _____________ .
A) orbit
B) revolution
C) axis
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At which of the following points during the carbon cycle is energy transformed from chemical to mechanical energy?
When fossil fuels are burned releasing carbon dioxide
When stored energy is released as heat
When ATP molecules are used to fuel movement
When carbon dioxide is converted to glucose
Answer:
When ATP molecules are used to fuel movement.
Hopes this helps :))
Answer :When ATP molecules are being used to fuel movement.
Explanation:
Describe how the DNA is stored in this prokaryotic cell. Is it organized? Can it be found in one small area?
Your answer
Explanation:
Its when several proteins work together and fold and concentrate prokaryotic DNA. Folded DNA is then organized into a variety of conformations that are supercoiled and wound around tetramers (a molecule with four structurale subunits) of the HU protein.
Usually unicellular (some cyanobacteria may be multicellular)
Which of the following does NOT result in genetic diversity?
do you think it's possible to bring to life extinct animals from fossils? How do you think that would affect organism that exist today?
Answer:
Answer: Extinct Animals could become invasive, spread disease, outcompete important species, and have unknown effects on the ecosystem.
Glucose provides energy for cells. Different cells have different mechanisms for glucose intake. Intestinal cells contain proteins that transport glucose against its concentration gradient. These proteins couple the movement of glucose to the movement of sodium down its concentration gradient. Red blood cells have transporter proteins embedded in their membranes. When bound by a glucose molecule, these proteins change shape and allow glucose to move down its concentration gradient into the cell.
Based on this information, what type of transport is used for glucose in blood and intestinal cells?
Which type of tissue performs the role of signal conduction in the body?
Answer:
food energy to the body 72-hour make your body healthy enough for different type of exercises in a day
During transcription, a DNA strand has the bases AGC GTC. What is the complementary strand of
mRNA?
AGC GTC
TCG CAG
UCG CAG
AAA AAA
UCG CAG
Adenine is replaced by Uracil and the rest go normally
need help biology i have no clue
Answer:
I believe it is Moelcule 2 but I may be wrong
Explanation:
Molecule 1 shows things related to ATP, and DNA is made with Ribosomes. So one can assume it's 2
Does a particle of a liquid or particle of a gas have more kinetic energy
Answer:
Liquid because it's always moving somehow, so the particles have more kinetic energy
First stage of the cell cycle.
cell cycle
mitosis
interphase
Answer:
Interphase
Explanation:
I believe that's accurate.