Answer:
Los desarrollos científico-tecnológicos han impactado positivamente sobre los sistemas de agricultura ecológica y en última instancia también sobre la agricultura familiar
Explanation:
La agricultura ecológica refiere a los procedimientos de explotación agrícola basados en la utilización sustentable de los recursos de la tierra y los métodos de fertilización orgánica, respetando el ambiente natural y evitando el uso de compuestos químicos artificiales (como por ejemplo plaguicidas químicos) y de cultivos transgénicos. Por otra parte, la agricultura familiar refiere a un tipo de agricultura ecológica basado en la dirección y la administración familiar. La agricultura familiar es el sistema de agricultura predominante en regiones pobres de América Latina y el Caribe, representando aproximadamente el 80 % de la producción agrícola. De este modo, el desarrollo de métodos eficientes de agricultura/ecológica familiar resultan fundamentales para lograr la seguridad alimentaria en la región y también para mitigar los efectos negativos del cambio climático. En este contexto, diferentes avances científico-tecnológicos han impactado positivamente sobre el manejo, eficiencia y productividad de la agricultura familiar como sistema de cultivo no sólo sustentable sino también eficiente, entre los cuales se destacan el desarrollo de mini-invernaderos, variedades mejoradas obtenidas a través de técnicas de mejoramiento genético convencional (selección a campo), trampas artesanales para la captura de insectos plagas, etc. Diferentes tecnologías/metodologías como las anteriormente citadas han sido ajustadas y validadas a partir de procesos de experimentación participativa con el objetivo de estudiar cuales son las condiciones de la zona que mejor se adaptan al tipo de cultivo y de incrementar la productividad de sistemas de cultivos sustentables.
25 POINTS! Please answer the following questions about Malaria. NO LINKS. This is for a project and is EXTREMELY important.
a. What type of pathogen caused the disease? Bacteria, viruses, fungi or
protists?
b. What is the name of the specific pathogen(s) that causes the disease?
In some cases this is the same name as the disease.
c. How is the disease spread? Does it infect people through physical
contact, blood, bodily fluids, or other?
Gametes (SEX CELLS) have ... A. half the number of chromosomes found in the body cells B. twice the number of chromosomes found in body cells C. two sets of chromosomes
Answer:
A. Half the number of chromosomes found in the body body cells
Explanation:
Somatic (body cells) have 2 sets of chromosomes, while gametes have 1 set of chromosomes. Sperm has one set, and an egg has one set allowing both to fuse to create a new organism.
Answer:
[tex]\boxed {\boxed {\sf A. \ Half \ the \ number \ of \ chromosomes \ found \ in \ the \ body \ cells}}[/tex]
Explanation:
Gametes are sex cells, such as the egg and sperm. They are used in sexual reproduction to produce offspring.
The sex cells are produced during meiosis. The DNA or genetic material is replicated, then the cells divide twice. After this, four haploid cells are produced with half of the genetic material. For example, human body cells have 46 chromosomes but sex cells have 23 chromosomes.
They contain half the genetic material for an important reason. During fertilization, an egg and a sperm fuse. Each one contributes half of the genetic material from the mother or father to create one complete set for the offspring.
Gametes have half the number of chromosomes in body cells and choice A is correct.
NO LINKS OR ILL REPORT I NEED THIS NOWW!!!
What does it mean when a substance sinks in water?
O It is malleable.
O It is not soluble.
Its density is less than water's density.
O Its density is greater than water's density.
Answer:
Its density is greater than water's density.
Explanation:
If an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float.
Which two phases of the moon are expected to come immediately after the phase on August 23?
Answer:
my name is mister nisegy ok
Explanation:
What happens when scientists turn off the gene that makes beaks in birds? A) birds have a large opening where the beak should be. B) Birds do not have any opening for their mouth. C) birds grow mouths with teeth that resemble alligator teeth. D) the birds grow mouths without any teeth.
Answer:
A) birds have a large opening where the beak should be.
Explanation:
when scientists turn off the gene that makes beaks in birds, the birds have a mouth where no teeth are present. The birds have mouth because the bird resembles and closely related to the dinosaur. There are some proteins that is responsible for the occurrence of beak but when the genes are turn off these protein stop producing that leads to turn the beak place into mouth.
If a red cow (hom0zygous dominant) is crossed with a white cow (hom0zygous dominant), what alleles will the offspring have?
Rw
RW
rW
rw
Answer:
RW
Explanation:
Captial letters are dominant and because both cows are hom0zygous dominant, the offspring will inherit one white dominant allele and one dominant red allele.
Answer: The answer is B: RW
Explanation: Edge 2021
What organism did the wolves enolve into?
Which of the following words best matches this definition: The process in which the best adapted organisms survive and pass on their traits, while those that are NOT well adapted do not survive. *
A. Natural selection
B. Organic selection
C. Artificial Selection
D. Acquired trait
Answer:
A. Natural selection
Explanation:
Where was Flannery O'Connor born? a. Milledgeville b. Savannah C. Andalusia d. Lourdes EL CA VE C
Dose mitochondria transfer things to the cell
Answer:
Yes, mitochondria transfers energy to the cell.
Explanation:
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.
A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
Muscle cells use more energy than most other cells in the body. Because of this, muscle cells must have more mitochondria.
Basically, mitochondria is one of the cell organelles found in all living organisms and it is known as the powerhouse. Therefore, mitochondria provides all the energy required in the cell by transforming energy forms through series of chemical reactions; breaking down of glucose into Adenosine Triphosphate (ATP) used for providing energy for cellular activities in the body of living organisms.
Question 1
• In a food chain, the organism that eats the
secondary consumer is the:
• A. Carnivore
•B. Second consumer
•C. Primary consumer
• D. Producer
In a food chain, the organism that eats the
secondary consumer is the: Carnivore
Question 7 of 10
The brain's complexity arises from the:
A. communication between the hind-, mid-, and forebrain.
B. functions of individual neurons.
C. division between two halves of the cerebral cortex.
D. complex connections of simple pieces.
SUBMIT
The complexity originates from the interaction of several neural circuits that operate across temporal and spatial scales, allowing the brain to adapt to a changing environment and conduct high-level mental activities. Therefore, option (D) is correct.
What is the complexity of the brain?The human brain is an intricate system that operates on multiple temporal and geographic scales, and it is this complexity that gives rise to the intricate molecular, cellular, and neuronal events that, when taken as a whole, constitute the physical and biological foundation of cognition.
This complexity is the result of the interaction of a large number of neuronal circuits that function over a diverse range of temporal and spatial scales. This interaction enables the brain to adapt to an environment that is constantly changing and to perform a variety of high-level mental functions.
Therefore, complex connections of simple pieces leads to complexity.
Learn more about brain, here:
https://brainly.com/question/27830816
#SPJ5
Which of the following would MOST LIKELY result in decreasing carbon dioxide levels in a lake?
A) an increase in the amount of precipitation
B) a decrease in competition among producers
C) an increase in the number of fish caught from the lake
D) a decrease in the amount of sedimentation entering the lake
Answer: C: an increase in the number of fish caught from the lake
Explanation:
An increase in the number of fish caught from the lake would most likely result in decreasing carbon dioxide levels in the lake. Therefore, option C is correct.
What are the effects of carbon dioxide in a lake?Carbon dioxide can have both direct and indirect effects on a lake's ecosystem. Here are some of the effects:
Acidification: When carbon dioxide dissolves in water, it forms carbonic acid, which can lower the pH of the water.
Oxygen depletion: If carbon dioxide levels are too high, it can lead to oxygen depletion in the water.
Algal blooms: High levels of carbon dioxide can also stimulate the growth of algae in the water. This can result in algal blooms, which can have negative effects on the lake ecosystem, such as oxygen depletion, fish kills, and changes in water clarity.
Thus, an increase in the number of fish caught from the lake would most likely result in decreasing carbon dioxide levels in the lake. Therefore, option C is correct.
Learn more about carbon-dioxide effects, here:
https://brainly.com/question/17212397
#SPJ3
What is the name given to your gag reflux organ?
Answer: pharyngeal reflex
Explanation:
The gag reflex, also known as the pharyngeal reflex, is when your pharynx contracts and your larynx pushes up, contracting your throat.
The afferent limb of the reflex is supplied by the glossopharyngeal nerve (cranial nerve IX), which inputs to the nucleus solitarius and the spinal trigeminal nucleus. The efferent limb is supplied by the vagus nerve (cranial nerve X) from the nucleus ambiguus.
Please help me with this.
NO SCAM LINKS PLEASE
Answer:
populations
Explanation:
Paleontologist have discovered many fossils that document the evolution of birds from dinosaurs that roamed earth long ago what does the fossil record tell us about this change ?
Answer:
It happened slowly over a long period of time.
Explanation:
Describe in your own words how proteins are made from DNA
Answer:
I think they are made from DNA, because they are able to be in your body without causing problems. Your body knows what it can handle and the proteins match with your body's ways.
Explanation:
1. What is the solid portion of smog called?
air pollution
dirt
oxygen
particulates
Answer:
particulates
Explanation:
maybe you could give that a second guess....
Answer: particulates
Explanation: i took the quiz
Which type of energy does Earth receive from the sun?
A. Thermal
B. Kinetic
C. Chemical
D. Mechanical
Answer: it is A thermal energy
Explanation:
In the carbon cycle, all animals must consume other organisms because
A. they cannot absorb carbon from the air.
B plants are better at absorbing carbon from the air than animals.
C they can only absorb carbon from the air at high temperatures.
sunlight is required to absorb carbon from the air, and some animals live
underground
Answer:
b plants are better at absorbing carbon from the aur than animals
Squirrels and birds feed on insects in a forest. Mild temperature and high humidity favors growth of insects.
What will be the effect of decreased humidity on the forest ecosystem?
A.
Population of insects will increase in the forest.
B.
Population of birds will increase in the forest ecosystem.
C.
Competition will increase between squirrels and birds for food.
D.
Squirrels will get more adapted to the changed environmental conditions
Answer:
competition will increase between squirrels and birds for food.
Which statement most accurately describes a relationship between two
animals in the relationship diagram?
Select one:
A. The turtle and salamander have amniotic eggs.
B.The turtle and opossum have amniotic eggs.
C. The turtle and salamander are warm-blooded.
D. The turtle and opossum are warm-blooded.
Please help
What is the moon phase positions relative to the sun?
What usually acts as a heat sink? A. Large bodies of water B. Coastal areas C. Mountains D. Vegetation
Describe how a stream interacts with the sediment. Are sand grains or pebbles picked up first? Which is more easily Eroded (transported)?
Answer:
Most mineral sediment comes from erosion and weathering, while organic ... If the water flow is strong enough to pick up sediment particles, they will ... water system – in high flow areas, larger, gravel-sized sediment will settle out first. ... This loose soil is then easily carried into a nearby river or stream by rainfall and runoff
Explanation:
The first organism in most natural food chains is
1) An herbivore
2) A decomposes
3) Photosynthetic
4) Carnivorous
Answer:
photosynthetic
Explanation:
make the brianests pleasssse
Answer:
I believe it is an herbivore
A student is taking notes about the four steps in hurricane formation. Which of the following should be written as step number 1?
A
tropical disturbance
B
tropical depression
C
tropical storm
D
hurricane
Answer:
tropical disturbance
Explanation:
I think i am correct let me know if I am wrong
Which set of keywords would you use to search for
information on how petroleum becomes gasoline?
A. Gasoline products
O B. Petroleum to gasoline
O C. Gasoline prices
O D. Petroleum products
As
you completed this assignment, the cells in your body were dividing and
the DNA in them was being copied, one _______
at a time.
DNA
Letter
Child
Mutation(used 2 times)
Plz help me
Answer:
a) DNA
Explanation:
You can quickly take out c and d, because what does a child have to do it with it and mutation isn't going to be used twice.
Letter, I don't know how that could come into a DNA being copied.
Furthermore, the answer is DNA.
"one DNA at a time."
Could someone plz help me with this!!! with thorough answers!!! One who answers with the best answer gets the crown!
Answer:
Melanin helps the mouse survive because of the fur color. Its color helps it to blend into its surroundings, making it a lot harder for predators to kill it, as the predators have a harder time seeing the mouse.
Explanation: