Answer:
A. respiration occurs at high temperatures without enzymes to release energy
Explanation:
The respiration is the transfer of oxygen from the environment to the cells and removal of carbon dioxide from the cells is often referred as cellular respiration by which an organism obtains an energy.
But combustion is the burning of any hydrocarbon fuel in the air resulting the liberation of heat energy and other combustion by products like carbon dioxide, steam and Nitrogen. Practically, in addition to these gases there may also be the presence of sulphur dioxide, nitric oxide and oxygen which depends upon the composition of fuel and the amount of air supplied for combustion.
what are secondary compounds and what is their function? list two examples of secondary compounds.
Answer: list two examples of secondary compounds.
Secondary Metabolites in Plants
Class Example Compounds Some Effects and Uses
Flavonoids anthocyanin, catechin flower, leaf color; inhibit enzymes, anti- and pro-oxidants, estrogenic
Tannins gallotannin, condensed tannin bind to proteins, enzymes, block digestion, antioxidants
Lignin lignin structure, toughness, fiber
Explanation:
Hope it helps you if not sorry
1.Which of the following stars closest to the Earth?
A. Alnilam B. Sirius C. Sun D. Vega
2.Why do stars have colors? It is because of the ______________.
A. different locations
B. varied temperature
C. presence of oxygen
D. presence of carbon dioxide
3.Based on apparent magnitude, which of the following stars is the brightest?
A. Alpha Centauri C. Rigel
B. Betelgeuse D. Sirius
4. The following are the ways which the stars differ from each other EXCEPT
A. Brightness B. Color C. Shape D. Size
5.Stars can be found in large groups throughout the universe. What are these groups
called?
A. Asteroids B. Comets C. Constellations D. Solar system
6.How do stars appear to move in the night sky? It moves from ______________.
A. East to West C. West to East
B. North to South D. South to North
7.Why do stars appear in the sky? It is because the __________________.
A. night sky is rotating
B. universe is expanding
C. new galaxies are formed
D. earth is rotating on its axis
8. If you are located at the North Pole, where will you see the Polaris?
A. Overhead
B. Just above the horizon
C. Around 450
from the horizon
D. Polaris will not be seen in the North Pole
Explanation:
1_C
2_A
3_D
4_B
5_C
6_A
7_C
8_C
1. The closest star to earth is actually Sun at 93,000,000 miles (150,000,000 km).
2. Stars are different colors such as blue, white, yellow, orange, and red. The color indicates the star's temperature in its photosphere, the layer where the star emits most of its visible light. Thus the correct option is B.
What is star?
A star is a luminous ball of gas containing hydrogen and helium, held together by its own gravity. Nuclear fusion reactions in its core support the star against gravity and produce photons and heat, as well as small amounts of heavier elements.
3. Sirius star also known as the Dog Star or Sirius A, is the brightest star in Earth's night sky. Thus the correct option is D.
4. Stars vary in their mass, size, temperature, color, luminosity, and age. They differ in their distance from earth, and some orbit one or more other stars. The stars differ from each other brightness.
5. Small groups of stars are called star systems, and somewhat larger groups are called star clusters. There are even larger groups of stars, called galaxies. Thus the correct option is D.
Our solar system is in the Milky Way Galaxy, which is just one galaxy in the universe. The patterns of stars seen in the sky are usually called constellations, although more accurately, a group of stars that forms a pattern in the sky is called an asterism.
6. Stars rising in the East, passing overhead, and setting in the West.
Thus the correct option is A.
7. This motion is due to the Earth's rotation. As the spin of the Earth carries us eastward at almost one thousand miles per hour, we see stars rising in the East, passing overhead, and setting in the West. The Sun, Moon, and planets appear to move across the sky much like the stars.
Thus the correct option is D.
8. If you go as far north as the North Pole, you'll see Polaris directly overhead. As you travel south, Polaris drops closer to the northern horizon. If you get as far as the equator, Polaris sinks to the horizon.
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Which two factors provide the genetic basis for variation within a species?
A. competition and protein synthesis
B.constant gene frequency and reproductive isolation.
C.mutations and sexual reproduction.
D.asexual reproduction and geographic isolation.
Answer:
Hi, there the answer is C.mutation and sexual reproduction
Explanation:
Answer:
c
Explanation:
it is the most logic answer
The hydrogen between the two strand of DNA are broken by the enzyme DNA helicase
The Gulf of Mexico is to oil as-
Answer:
The gulf of mexico is to oil as coal is to fires
Explanation:
The gulf of mexico is to oil as coal is to fires.
What are the features of gulf of mexico?The Gulf of Mexico is an ocean basin and a marginal sea of the Atlantic Ocean, mostly surrounded by the North American continent. It is responsible for 54% of oil production in the U.S., and 47% of natural gas production.
The Gulf of Mexico is an ocean basin or bay of the Atlantic Ocean. It is a marginal sea of North America. The United States of America, Mexico, and Cuba are the countries around it.
The Gulf of Mexico is located below the southeastern portion of the United States. It borders the coasts of Texas, Louisiana, Mississippi, Alabama and Florida as well as the island of Cuba and parts of Mexico.
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Which of these is NOT a similarity that whales share with land animals?
1. Some have legs to walk
2.Blowhole like a
nose
3.Feed their baby milk
Whales being aquatic, is considered as mammal. They have blowhole that resembles to nose of mammals and they also feed their babies like mammals.
What is the characteristics of a mammal?Mammals are warm blooded animals that gives birth to young ones. They have advanced reproduction and prenatal care for their babies.
The mammals have following characteristics:
Presence of hair or fur.They have sweat glands.These have mammary gland that produces milk.These have four chambered heart.These have more complex brain.As whale have mammary glands, they gives birth to young ones and feed milk to their babies, so, these are included under mammals.
Thus, the correct option is 1.
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Which of the following accurately describes ionic bonds?
O A. Atoms share one or more protons.
O B. Atoms transfer one or more electrons.
O C. Atoms share one or more electrons.
O D. Atoms transfer one or more protons.
Answer:
C. Atoms share one or more electrons.
Explanation:
Covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between atoms.
explain the concept of gaseous exchange in humans
What order do these go in?
A-Chromosome
B-Nucleus
C-Cell
D-Gene
These aren't in order. I just need to know what order to put them in.
Answer:
Cell
Nucleus
Chromosome
Gene
I guess
Answer:
The order from smallest to largest is nucleotide,gene,DNA,chromosome,nucleus,cell,organism
Explanation:
Nucleotide the buiding blocks of DNA are the smallest among the given options.DNA is bigger than gene but smaller than chromosome as DNA fits within a chromosome.
On the other hand chromosome is present within the nucleus.Nucleus along with cytoplasm and various cell organelles builds a cell.
Many cells are specifically arranged to form an organism.
So the order from smallest to largest is
NucleotidegeneDNAchromosomeNucleuscellorganismRead more on Brainly.com - https://brainly.com/question/14213661#readmore
Give differents between lytic and lysogenic cycles
Answer:
the spread of the viral DNA
Explanation:
The difference between lysogenic and lytic cycles is that, in lysogenic cycles, the spread of the viral DNA occurs through the usual prokaryotic reproduction, whereas a lytic cycle is more immediate in that it results in many copies of the virus being created very quickly and the cell is destroyed.
How do many insects handle the bitter cold of winter?
Group of answer choices
they develop wings
they hide inside trees
they blend in with the twigs
they form a hard cocoon
pls help me which choice is it
Answer:
they hide inside trees
Humans grow, develop, and heal because cells can reproduce themselves. This cellular reproduction is called ______________. *
What does NOT happen during interphase
Which of the following causes air masses to move around the globe and
generates wind?
Unequal heating of Earth's surface
Equal heating of Earth's
surface
Deep ocean currents
Wind patterns from the Southern Hemisphere
Answer:
Unequal heating of Earth's surface
Explanation:
base on my research
What is the name and function of the structure indicated by A?
When analyzing DNA, what percentage of the human genome do tandem repeats represent?
5 percent
25 percent
30 percent
60 percent
Answer:
60 percent i think
Explanation:
hope this helps
The percentage of which the human genome that tandem repeats signal while assessing DNA would be:
D). 60 percent
The process of tandem repeats takes place in DNA in the situation of nucleotides' repetition.They are widely used and quite significant in the forensic assessment of Deoxyrhybo Nucleic Acid. In the case of assessment of DNA, 60% of the human genome is represented in the process of the tandem repeat.Thus, option D is the correct answer.
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Write any three problems with the measurement of quantities that the SI unit system has solved.
Explanation:
1. they are convenient to use 2. it helps the international tade 3. it eases the exchange of material
what is method of chromatography
method of chromatography is seperating the modules of a solution according to one or more of its chemical proporties.
why people living in high altitude have level of RBC?
Answer:
Scientists have long known that the body adjusts to the oxygen-deprived conditions of high altitudes. ... The traditional explanation has been that low-oxygen conditions cause the body to build new red blood cells, making it easier to supply oxygen to muscles and vital organs.
How have humans changed the global nitrogen cycle?
A. They have greatly decreased the amount of fixed nitrogen.
B. They have raised the speed at which nitrogen travels through the
cycle.
C. They have lowered the speed at which nitrogen travels through the
cycle.
D. They have greatly increased the amount of fixed nitrogen.
Answer:
D
Explanation:
Humans activities, such as making fertilizers and burning fossil fuels, have significantly altered the amount of fixed nitrogen in the Earth's ecosystems.
Cell Membrane Diseases Cell membrane diseases are life -threatening disorders that are in nature , and they usually work against proteins in our body that are key to ion channels and various receptors within the membrane . These diseases work by either disrupting the normal functions of the or by simply affecting the cell membrane . Many of these disorders contain other components as well. Some disorders involving trouble with the cell membrane
1) Cystic fibrosis
2) Alzheimer's disease
3) Duchene Muscular Dystrophy
4) Hyaline Membrane disease
Answer
cell kytosis
Explanation
Which one of these is the most accurate in determining the absolute age of two rocks?
A. Vertical position
B. the presence of unconformities
C. Radioactive dating of each layer
D. Comparing fossils in the layers
Answer:
radioactive dating of each layer would be the right one
Cells full of ribosomes would most likely
be what kind of cell?
A. plant
B. brain
C. involved in protein synthesis
Answer:
plant
Explanation:
because plant is a multicellular organism and multicellular organism are full of ribosomes
Cells full of ribosomes would most likely be plant cell.
What is ribosomes?
A ribosome is a complex molecular machine found inside the living cells that produce proteins from amino acids during a process called protein synthesis.
What is the function of ribosome?
Ribosomes have two main functions decoding the message and the formation of peptide bonds.
Hence ,A is correct option
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Protective gear is an important part of the job, yet employees often have to be reminded to wear it. Why do you think people are often reluctant to wear the required gear? How could their employers address these concerns?
Answer:
It's important to wear gear at all costs.
Explanation:
If you do not wear protective gear during jobs, bad things can happen. You can have dangerous chemicals in your skin, germs spread, etc. It depends on the job, really.
A new mountain lake just formed by a glacier.The lake starts with little nutrients or life, but over time it begins to support a variety of species.
The given question is incomplete, the complete question is:
A new mountain lake just formed by a retreating glacier. The lake starts out with little nutrients or life, but over time it begins to support a variety of species.
Which type of succession does this describe?
secondary
primary
island
aquatic
Answer:
The correct answer is primary succession.
Explanation:
The development of an ecosystem in a region where no form or sign of life existed before is termed as primary succession. In the mentioned case, a glacier at the start did not support any form of life, however, it started producing a mountain lake where some form of life started to appear gradually. With time, the development of the pioneer community will take place, which will eventually get transformed into a climax community.
In comparison, a kind of succession that takes place in the regions where life prevailed before but got destroyed or eliminated due to natural disasters or human applications is termed secondary succession.
In chart 2, the lines labeled Age 65+ and Age < 5 show a distinct trend. If this trend continues, name one way it will affect human society negatively.
Answer: in chart 2, the age 65+ line is increasing and the age <5 line is decreasing. These trends indicate that the number of old people is increasing while the number of young people is decreasing.this can strain resources, because there may not be enough young people to take care of the old when they are sick.
Explanation:
Answer:
In chart 2, the Age 65+ line is increasing and the Age < 5 line is decreasing. These trends indicate that the number of old people is increasing while the number of young people is decreasing. This can strain resources, because there may not be enough young people to take care of the old when they are sick.
Explanation:PLATO
Oxygen has an atomic number of 8. The n=1 energy level has two electrons, and the n = 2 energy level has six electrons. Oxygen's valence is _______.
● +2
● -2
● +1
● -1
Answer:
Oxygen's valence is +2
the answer is +2
I hope this helps
Answer:
● -2
Explanation:
Oxygen needs to gain 2 more electrons to have 8 electrons in outer most shell (octet rule). Gaining electrons makes you negative thus, oxygen gains 2 electrons and has valence of -2.
Helppp I need it rn I’m on time
Answer:
B- The gene pool of the population will remain relatively constant
Explanation:
Hope this helps!!
What might happen if a coral species that is well adapted to higher temperature was introduced into a coral reef habitat?
Answer:
May die eventually
Explanation:
A coral species which is living in a regions of high temperature will not be able to be in symbiotic relationship with algae at normal temperature of the sea side coral reefs and may expel it out. A long lasting exposure to change in temperature will lead to bleaching, turning corals white and ma eventually cause death.
Describe what the town looked like when the Once-ler first arrived in his
wagon.
In the movie Lorax
When the Once-ler first arrived in his wagon, the town looks like very large surrounded by trees called Truffula trees.
What are the conditions of town look like?A Town looks like very huge with an enormous number of trees. Bears are randomly walking around the trees and eating truffula fruits.
Fishes were lived in a pond, a place called glorious where swamee swans were found.
Therefore, when the Once-ler first arrived in his wagon, the town looks like very large surrounded by trees called Truffula trees.
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