Answer:
True.
Explanation:
The chloroplasts' function is to take energy to perform photosynthesis. That is why there are no chloroplasts in animal cells.
Answer:
True
Explanation:
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.
In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.
Describe how enzymes in root cells synthesise starch?
Answer: Amylopectin is synthesized from ADP-glucose while mammals and fungi synthesize glycogen from UDP-glucose; for most cases, bacteria synthesize glycogen from ADP-glucose (analogous to starch). In addition to starch synthesis in plants, starch can be synthesized from non-food starch mediated by an enzyme cocktail.
Explanation:
The process by which enzymes in root cells synthesize starch is called dehydration synthesis. It is a chemical reaction to form biological macromolecules. It is the process of joining two molecules or compounds together followed by the removal of water from it
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All cells are surrounded by a cell membrane. Which statement is NOT an accurate description of a cell membrane? a Regulates what enters and leaves the cell. b Responsible for the formation of ATP c Provides protection and support for the cell. d Flexible and made up of smaller molecules such as lipids and proteins
Answer:
The correct answer is - b. Responsible for the formation of ATP
Explanation:
The cell membrane is the outer membrane of all types of the cell including eukaryotic, and prokaryotic cell. The cell membrane surrounds the cytoplasm and cell organelles.
The cell membrane is made up of phospholipids that have a hydrophilic and hydrophobic region in the lipid bilayer. The main function of the cell membrane is to protect the cell, provide support, and regulation what enters and leaves the cell. ATP formation is not produced by the cell membrane.
For all cells where protein synthesis occurs, which base pair is found only in mRNA?
Answer:
Adenine (A) pairs with Uracil (U) in MRNA
Explanation:
Uracil replaces Thymine (T) when MRNA occurs. This is because Uracil is energetically less expensive to produce than Thymine.
Which statement correctly describes the difference between meiosis I and
meiosis II?
A.
Meiosis I brings together sister chromatids, and meiosis II separates them.
B.
Meiosis I separates tetrads, and meiosis II separates sister chromatids.
C.
Meiosis I separates sister chromatids, and meiosis II separates tetrads.
Answer:
C
Explanation:
Because
When gaseous water transitions into a liquid during the water cycle, this is known as condensation. Which of the following is an example of condensation?
A.
the formation of clouds
B.
the melting of mountain snow
C.
the falling of freezing rain
D.
the evaporation of ocean water
Water is the biggest component of matter in an organism.
True
False
Answer:
True
Explanation:
________ cannot be created or destroyed. It can only be transformed (from one type of energy to another, such as chemical energy to electrical energy when a toy uses a battery) or transferred (from one place to another, such as a hot coffee mug to your hand).
Answer: Energy
Explanation: Energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another.
Answer:
Energy
Explanation:
The relationship between the amount of energy available for use and the amount of entropy in a food chain differs between trophic levels. Why would the amount of entropy increase from one trophic level to another in a food chain or energy pyramid? a. The available energy from one trophic level to another increases b. Energy is lost at each level as heat, which increases randomization c. The amount of biomass decreases from one trophic level to another d. The available energy at each level may either increase or decrease, creating randomization.
The quantity of entropy in a food chain differs among trophic tiers the best choice is "B" strength is misplaced at every degree as heat, which will increase randomization.
The amount of entropy is the energy required for the movement from one trophic level to another and when strength is misplaced at every degree as heat, which will increase randomization then the amount of entropy increase from one trophic level to another in a food chain or energy pyramid.
What are the ten in line with the cent regulation of strength?
The 10% Rule shows that after strength is flowing in surroundings from one trophic level to the next, the best ten in line with cent of the strength could be exceeded. The trophic level is the placement of an organism in a food chain or strength pyramid.
Thus, strength is misplaced at every degree as heat, which will increase randomization.
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Answer:
b. Energy is lost at each level as heat, which increases randomization
The parietal cells of the stomach secrete ______________, while the chief cells secrete ______________.
Explanation:
The two main types of exocrine secretory cells of the stomach are parietal cells and chief cells. Parietal cells secrete hydrochloric acid and chief cells secrete digestive enzymes such as pepsin
Filling the gaps of the excerpt in the question
The parietal cells of the stomach secrete ___Hydrochloric acid___________, while the chief cells secrete ___Digestive enzymes _
What are parietal cells ?Parietal cells are epithelical cells found in the gastric glands in the human stomach which secerete hydrochloric acids while the chief cells are basophilic cells that are located in the bottom of the gland they produce digestive enzymes such as pepsin.
Hence we can conclude that the answers to the question are as listed above.
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The soybean aphid was introduced to the United States in 2000. The aphid killed many soybean plants. In 2004, scientists
discovered that some soybean plants were resistant to the aphid. This resistance was genetically based. The scientists
wanted to determine whether the resistant trait in these soybean plants has a dominant inheritance pattern. Which of the
following would provide the best evidence that the trait is dominant?
Answer:
The soybean aphid was introduced to the United States in 2000. The aphid killed many soybean plants. In 2004, scientists discovered that some soybean plants were resistant to the aphid. This resistance was genetically based. The scientists wanted to determine whether the resistant trait in these soybean plants has a dominant inheritance pattern. Which of the following would provide the best evidence that the trait is dominantHello people ~
If natality is balanced by mortality in a population at a given time, there will be a/an
(a) decrease in the population size
(b) increase in the population size
(c) zero population growth
(d) population explosion
(c) zero population growth
natality - birth rate
mortality - death rate
when birth rate and death rate are equal. the population remains constant and does not change. nor increase nor decrease.For example, the birth rate in a country is 500 and death rate is 500. both balanced. 500 - 500 = 0, zero growth in population.
(a) Waves P and Q have the same __________, but wave P has twice the __________ of wave Q.
Answer:
(a) Waves P and Q have the same wavelength but wave P has twice the amplitude of wave Q.
(b) Waves Q and R have the same amplitude but wave R has twice the wavelength of wave Q.
(c) Wave T shows a steady frequency but changing amplitude.
(d) Wave S shows steady amplitude but a changing frequency.
e) Waves Q and R have a low amplitude and a steady frequency.
Explanation:
What glands produce an oil that keeps the skin and hair soft and also acts as a barrier against bacteria?.
Answer:
sebaceous glands
Explanation:
The sebaceous glands secrete sebum into hair follicles. Sebum is an oil that keeps the skin moist and soft and acts as a barrier against foreign substances.
Hope that helps:)
Mendel bred an unknown plant displaying a dominant phenotype with an individual showing the recessive phenotype; then, he analyzed the offspring to determine the unknown genotype. This experiment is called a(n)
What Mendel did according to the illustration would be called test-crossing.
Test-crossingIn genetics, test crossing is a procedure through which the zygosity of an individual can be determined - whether it is homzygous or heterozygous.
Test crossing requires that an organism who displays a dominant trait but whose zygosity is unknown is crossed with another organism of the same species but who displays the recessive version of the same trait.
By so doing and using the knowledge of probability, the resulting offspring from the cross will be used to determine the zygosity level of the parent.
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What is the relationship between temperature and kelp survival?
One of the principles of cell theory states that all cells come from.
Answer:
other cells
Explanation:
Please answer the question which I attached to this file
50% & 50%
Explanation:
Prior to cells growing and dividing the chromosones, which are made of DNA, are copied. This process is known as...
A) Transcription
B )Translation
C) Replication
D) Duplication
21. Place the events in the correct order:
1.DNA polymerase adds nucleotides in the 5' to 3' direction
2. Replication fork is formed
3.DNA polymerase attaches to the primer
4.Okazaki fragments are bound together by ligase
5. DNA helicase unwinds DNA
Answer:
DNA helicase unwinds DNA
Replication fork is formed
DNA polymerase attaches to the primer
DNA polymerase adds nucleotides in the 5' to 3' direction
Okazaki fragments are bound together by ligase
Explanation:
7. This tortoise is eating cactus on a sunny day. Is carbon moving into the air, moving out of the air, or both? a Carbon is not moving into the air; it is only moving out of the air. B With this information, there is no way to know for sure. C Carbon is only moving into the air; it is not moving out of the air. D Carbon is moving into the air and out of the air at the same time.
Answer:
Id say that carbon is moving into the air, since the turtle is inhaling oxygen and exhaling carbon dioxide.
Explanation:
Carbon is moving into the air and out of the air at the same time. So, the correct option is D.
What is the Carbon cycle?The exchange of carbon between the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of Earth is called as the carbon cycle. Most biological compounds and many minerals, like limestone, primarily comprise carbon.
The carbon cycle explains how an ecosystem's both biotic and abiotic constituents interchange this element. For biological systems to survive in the natural world, the carbon cycle is essential. Carbon is moving into the air and out of the air at the same time in the given example by the Tortoise. Carbon cycle consists of four phases into Photosynthesis, Decomposition, Respiration and Combustion
Therefore, the correct option is D.
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What are the reactants and products of the light reactions?
Answer:
ummm
Explanation:
Answer:
glucose and oxygen
Explanation:
There was a change in the environment between generations 10 and 30.the change likely?
Answer:
the changes were genetic mutations
Explanation:
Answer:
Favored Trait A
Explanation:
What is the major ion in seawater?
sodium
sulfate
chloride
magnesium
Answer:
Chloride is the first major ion in seawater
Explanation:
That is the first one out of those in the list of seawater ions, so I'm assuming that its correct.
the pupil, which is the hole located in the center of the iris of the eye, controls the amount of light that gets into
Answer:
Then it hits the lens and then the retina
Explanation: The light that is let in decides the size of the pupil
PLEASE HELP!
Match the amount of carbon to each description.
1. The amount of carbon dioxide human activities put into the atmosphere annually in the present day
2. The amount of carbon in the atmosphere
3. The amount of carbon stored in fossil fuels
answers
1.
10 gigatons
2.
840 gigatons
3.
10,000 gigatons
Based on current data;
The amount of carbon dioxide put into the atmosphere annually dueto human activities is 840 gigatonsThe amount of carbon in the atmosphere is 10 gigatons The amount of carbon stored in fossil fuels is 10,000 gigatonsWhat is the carbon cycle?The carbon cycle a cycle showing how carbon is recycled between the atmosphere and earth.
The carbon cycle ensures that their is a balance of carbon in the atmosphere as well as on earth.
Human activities have increased the amount of carbon in the atmosphere.
The amount of carbon dioxide human activities put into the atmosphere annually in the present day is 840 gigatons.
The amount of carbon in the atmosphere is 10 gigatons
The amount of carbon stored in fossil fuels is 10,000 gigatons
Therefore, it can be concluded that human activities disrupt the carbon cycle.
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Do you think that people should be allowed to construct new developments near wooded areas that are prone to forest fires? Explain your answer.,
Answer:
No, this is because the work itself of creating/constructing new developments may cause danger to the society. This may also cause environment issues and pollution in the air and many animals may be harmed. Also, by removing trees for developments, this may decrease the amount of oxygen and nature in the area.
Hope this helps:)
Types of organisms that are photosynthetic primary producers are plants and what else ?
Which of the following organisms is the most harmful to the tree it grows on? a. strangler fig b. orchid c. spanish moss d. none of the above please select the best answer from the choices provided a b c d
Answer:
Option A
Explanation:
Strangler figs are known for their growth upon host trees robbing them of their light,water and nutrients and this often leads to the death of the host tree
Answer:
A. Strangler fig
Based on your knowledge of the water cycle, from what bodyof water does the most water evaporate? Why?
Answer: oceans
Explanation: oceans have a greater surface area. over 70% of the Earth’s surface is covered by water.
Which of these statements is true of using melting and boiling points to identify a substance? Text to speech A:A. It is an effective method to identify gas molecules. B:B. It is the most affordable way to identify a substance. C:C. It is a property that changes based on the amount of a substance you have. D:D. It is a property that does not change regardless of the amount of a substance you have.
Answer:
D:D. It is a property that does not change regardless of the amount of a substance you have.
Explanation:
Melting and boiling points are two chemical properties of a substance. These are used to identify whether a substance is solid, liquid, or gas.
The melting point is the temperature at which solid-state changes into liquid state. The boiling point is defined as the temperature at which liquid changes to gas.
The melting and boiling point are intensive properties that are independent of the amount of substance to be identified.
Hence, the correct answer is "D. It is a property that does not change regardless of the amount of a substance you have."