A dorsiventral leaf, also known as a bifacial leaf, is a type of leaf structure characterized by having distinct upper and lower surfaces with different functions and structures.
The upper surface of a dorsiventral leaf is called the adaxial surface, while the lower surface is called the abaxial surface. The adaxial surface is usually dark green and is exposed to more sunlight, while the abaxial surface is typically lighter in color.
This structural asymmetry allows for efficient photosynthesis on the upper surface while minimizing water loss through stomata on the lower surface.
Dorsiventral leaves are commonly found in dicotyledonous plants and contribute to their overall shape and function in terms of light absorption, gas exchange, and transpiration.
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When basaltic lava flows in channels or lava tubes it can move up to 30 km/hr (19 mi/hr). How would this type of flow affect the time it took the lava to reach the town?
Answer:
The time will be "2 hours".
Explanation:
Around 10 km/hr, lava eruptions were travelling. The vents was just 15 km (9.3 mi) away Kalapana city as well as 20 km (12.6 mi) from Pahoa city.
So, we therefore need add the method, which would be: to taking out another time that civil defense officials just had to assess a city.
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Thus, to measure the time spent throughout the community of Kalapana,
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During glycolysis, the molecule glucose is broken down into pyruvate. What type of reaction is this?
Explanation:
Glycolysis is a set of anaerobic reactions, ones that does not need oxygen to be performed. It takes glucose and breaks it down into pyruvate. This has the result of creating two ATP, which can release energy.
Overall, this process creates four ATP, but it uses two ATP early in the reaction. This means that there is a net gain of two ATP.
The overall equation for this pathway is:
1 glucose + 2 ATP ⟶ 2 pyruvate + 2 NADH + 4 ATP + 2 H2O
Glycolysis is a set of anaerobic reactions, ones that does not need oxygen to be performed. It takes glucose and breaks it down into pyruvate. This has the result of creating two ATP, which can release energy.
Overall, this process creates four ATP, but it uses two ATP early in the reaction. This means that there is a net gain of two ATP.
What does glycolysis process?Glycolysis is the method of breaking down glucose. Glycolysis can take place with or without oxygen. Glycolysis produces two molecules of pyruvate, two molecules of ATP, two molecules of NADH, and two molecules of water.
Glycolysis occurs in the cytoplasm.
Thus, Glycolysis is the method of breaking down glucose. Glycolysis occurs in the cytoplasm.
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The Moon's orbit of Earth is due to the attractive forces explained by Newton's Universal Law of Gravitation. What
observable phenomena naturally result from the Moon's orbit?
tides
seasons
solar flares
volcanic eruptions
How contipedes differ from millipedes
Answer:
Millipedes have two sets of legs per segment positioned directly under their body, while centipedes have one set of legs per segment positioned on the side of their body.
Here are a few tips to spot the differences: Millipedes have two sets of legs per segment positioned directly under their body. Centipedes have one set of legs per segment positioned on the side of their body. ... Millipedes feast on decomposing plants.
Explanation:
#carryonlearningWhat is an example of elastic potential energy?
a. stretching a rubber band
b. apple falling from a tree
c. A dog lying on the floor
d. throwing a ball
Answer:
a.stretching a rubber band
Answer:
An example of elastic potential energy is
A. stretching a rubber band.
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ITS A DOG I THINK!
Which of these metals are magnetic?
a.copper
b.steel
c.nickel
d.tin
e.aluminum
Answer:
Metals that have iron are magnetic.
D. Tin
Explanation:
Hope it helps...........................................
aid of diagram describe the biconversion of surfur cycles?
Answer:
The sulfur cycle describes the movement of sulfur through the geosphere and biosphere. Sulfur is released from rocks through weathering, and then assimilated by microbes and plants. It is then passed up the food chain and assimilated by plants and animals, and released when they decompose.
How are coral reefs similar to tropical rainforests? Both are home to just a few types of rare animals. Both can easily be restored if they are destroyed. Both support a huge quantity and variety of organisms. Both are found in all types of climates around the world.
Answer:
c
Explanation:
Answer:
its C
Explanation:
i took the test on edge 2021
Need some quick help with this:
Answer:
In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. Oxygen is released as a byproduct. In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process.
Explanation:
Answer:
option C
Explanation:
radiant energy from the sun get converted into chemical energy during the photosynthesis process by the chlorophyll .
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fertilization that happens when sperm cells are released into the body of the female animal
Answer:
If you're asking about the type it is internal
Explanation:
Mammals internally fertilise through copulation.
the marine animals affected by the bloom do not eat algae. How could domoic acid have poisoned these organism?
Answer:
Domoic acid is a kainic acid-type neurotoxin that causes amnesic shellfish poisoning. It is produced by algae and accumulates in shellfish, sardines, and anchovies. When sea lions, otters, cetaceans, humans, and other predators eat contaminated animals, poisoning may result.
Explanation:
Blooms of algae affect ALL TROPHIC levels because domoic acid is a neurotoxin that accumulates in different species (e.g., shellfish, sardines, anchovies, etc) which are eaten by higher consumers (e.g., manatees and dolphins), thereby altering the equilibrium of the food chain.
A food chain refers to the transfer of matter and energy as food from different trophic levels in an ecosystem.
The food chain is sustained by organisms called producers (.e.g., algae in a marine ecosystem), which are found at the most basal level of the chain.
The primary consumers (e.g., marine invertebrates) are organisms localized at the second trophic level. These organisms (primary consumers) eat producers.
The secondary consumers are organisms found at the third trophic level, which eat primary consumers, and so successively to all major trophic groups.
Blooms of algae alter the whole food chain because domoic acid is a poison that accumulates in the body of the organisms at all trophic levels.
In consequence, marine consumers at higher trophic levels (e.g., manatees and dolphins) are also affected by blooms of algae.
In conclusion, blooms of algae affect ALL TROPHIC levels because domoic acid is a neurotoxin that accumulates in different species (e.g., shellfish, sardines, anchovies, etc) which are eaten by higher consumers (e.g., manatees and dolphins), thereby altering the equilibrium of the food chain.
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the structure labeled A in the figure below is called the
Answer:
Centromere
Explanation:
Connects sister chromatids
The structure labelled A in the figure is a centromere.
What is a centromere?The centromere is a region of the chromosome that is constricted. The centromere plays an important role in the division of cells during both the processes of mitosis and meiosis.
The centromere is simply the region of the chromosome where the spindle fibres attach. Therefore, when the spindle fibres attach to the centromere, they pull the sister chromatics in the opposite directions of the cell during cell division.
Thus, at the end of the cell division, each of the daughter cells gets one-half of the chromosome containing identical DNA. The centromere is thought to be the middle region of the chromosome, even though it is often not in the middle. It is simply the region where the chromosomes are most constricted
The centromere separates the chromosome into the P arm and the Q arm. These are simply the names given to the short arm and the long arm of the human chromosome respectively.
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The following is an example of mechanical energy
a. Riding a bike
b. Eating food
c. The sun
d. A fire giving off heat
Answer:
The answer is A.
Explanation:
Because it involves motion and kinetic energy.
What happens in an ad hominem persuasive technique? A limited number of options are presented. A person is attacked rather than an argument. Loaded language is used to appeal to emotions. A quick judgment is made without the use of evidence.
Answer: B
Explanation:edg2021
In an ad hominem persuasive technique a person is attacked rather than give an argument.
What is an ad hominem argument?
An ad hominem reasoning argument is a type of argumentation where its validity is not based on an attribute.
An ad hominem argument is fallacious because it does not involve verifiable information to be proved.
This type of argumentation occurs when one person is attacked based on feelings of prejudice and or fallacious commentaries.
In conclusion, a person is attacked rather than give an argument in an ad hominem persuasive technique.
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help me woth these two ill give free BRAINLESS
answer : the elbow is an example of the second last one (it won't let me write the word)
Answer:
Answer D
Explanation:
This is a synovial joint, or just D
Which of these events can lead to an increase in the population size of mice?
a. Some mice emigrate (leave) in search of food
b. Cats, owls, and snakes are added
c. More mice are born than die
d. A large number of mice die because of a forest fire
e. Cheese shortage
This means the birth rate would exceed the death rate, to make a positive growth rate in the population. So overall, the population will go up if more mice are born compared to those that die off.
Choices A, B, D and E all describe factors that would either kill mice or push them out of the habitat. Either way, these answer choices would have a decrease in population rather than increase. So we can eliminate these answer choices.
A force of 5 N is required to increase the speed of a box from a rate of 1.0 m/s to 3.0 m/s within 5 s along a level surface. What change would most likely require additional force to produce the same results?
(SC.6.P.13.3)
reduce the mass of the box
increase the mass of the box
make the surfaces of the box smooth
make the surface of the floor smooth
HELPPP
Answer:increase the mass of the box
Explanation:
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When we say that a bulb is fused, what is wrong with the bulb? How can we use it again?
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Which are ways that humans can lower biodiversity as they us environment? Check all that apply. A. Converting a forest to soccer fields B. Spraying pesticides on lawns An C. Building roads across tundra D. Replacing riverbanks with concrete bulkheads and
Answer:
A, B, C, and D
Explanation:
All of the options represent ways by which humans can lower biodiversity as they use the environment.
By definition, biodiversity or biological diversity of an area refers to the total number of living organisms that are domicile in that area.
Converting a forest to a soccer field requires that the variety of plants and animals in the forest are removed and the forest soil is planted with turfs in their place. Thus the biodiversity of the forest has been greatly reduced in other to pave way for a soccer field.
A pesticide is an agrochemical that kills pests. Pests are biological organisms even if they are not that desirable on the lawn. Thus, killing them off using a pesticide is a way of reducing the biodiversity associated with the lawn.
A tundra represents an ecoregion with its own characteristic plants and animal, even if they are few. Hence, building roads across tundra requires that portions of the biodiversity are removed to pave way for the road.
Riverbanks serve as habitats for a variety of living organisms. Replacing them with concrete bulkheads means that the habitat is lost and the organisms displaced. Thus, the biodiversity of the region gets reduced.
Therefore, options A, B, C, and D are all correct.
Which question cannot be tested with Scientific investigation?
Answer:
air
Explanation:
describe the feature of cell mbrane
Answer:
The cell membrane or plasma membrane is a biological and thin semi-permeable membrane that surrounds the cytoplasm of a cell
Explanation:
How many family members have dimples?
Please help!
Answer:
4
Explanation:
Shaded means that the family members are affected (which in this case means having dimples)
Answer:
5
Explanation:
What are bio molecules made of?
Answer:
bio molecules are organic molecules that includes carbohydrates, protein, lipids, and nucleic acids.
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4. Which choice is a risk factor that may increase chances of abusing alcohol?
1.no access to alcohol
2.no peer pressure
3.alcoholic parent
4.high self-esteem
Answer:
3.alcoholic parent..ÔwÔ
Which event occurred during the Mesozoic era?
Cyanobacteria filled the water and air with oxygen.
Early humans began to make tools, harvest plants, and make cave paintings.
Pangaea began to break apart into many continents separated by shallow seas.
Pangaea, the super continent, was formed.
Answer:
Pangea began to break apart.
Explanation:
Humans wouldn't exist for millions more years. Pangea existed before the Mezoic, and the Cyanobacteria doesn't make sense. (Not an expert though.
What is a phenotype that is influenced by the environment called?
Due Tuesday
Write the name of the root tissue on the corresponding line. What are the two ways root cells grow?
Despite the rampant depletion of trees in the natural forest in Ghana,it is still worth using wood as the main construction.Disscuss
Answer:
Hope this helps!
Explanation:
Forest resources support livelihood of people in jurisdictions in which forest is located. However, the forest size is gradually depleting continuously. The lack of information about the specific agents and forces of forest depletion is worrying. This is due to the inter-generational and intra-generational equity notions that affect mankind. As such, there is the need to maintain such resources on a non-declining value basis so as to maintain human welfare over time. Thus, the objective of this study is to empirically examine the determinants of forest depletion in Ghana over the 1970-2012 period in Ghana. This study employs multiple regression concepts to examine the effects of the determinants on forest depletion. The findings of the study indicate that gold extraction for export, population growth and logging increase the rate of forest depletion for the study period. More significantly, population growth reflected in settlement expansion, agriculture purposes, increased use of fuel wood, etc have greater effect on forest loss in Ghana. This suggests that, protection of the forest is necessary and sufficient condition for economic growth. As a result of these, both government and policy-makers need to safeguard the forest estate, by increasing afforestation schemes and also using part of the returns from gold exports to regenerate the forest.
Answer:
The main cause of deforestation is agriculture (poorly planned infrastructure is ... In 2019, the tropics lost close to 30 soccer fields' worth of trees every single minute. ... of Texas could be lost to rampant deforestation, according to a WWF report. ... These fires not only alter the structure and composition of forests,
Explanation:
Select all of the correct purposes for cells undergoing mitosis