what is crop rotation
Answer:
MARK ME BRAINLIST
Explanation:
the practice of growing different crops in succession on the same land chiefly to preserve the productive capacity of the soil.
Answer:
Crop rotation was used during the agricultural revolution. It allowed the soil to be healthier and prevented the nutrients from being stripped from the soil. Crop rotation is when your land in separated into different fields for different plants. Usually you would have two or three. One field is left fallow (land that is taken care of, but does not have any crops), and the other one/s are for whatever you choose to plant. Each season you rotate your crops so each field has a turn to be fallow.
Explanation:
Example: you separate your land into three fields. Field 1 has potatoes, field 2 has wheat, and field 3 is fallow. Next season Field 1 is fallow, Field 2 has potatoes, and Field 3 has wheat.
2. A heart attack occurs when an artery in the heart is blocked, restricting the flow of blood. Why would a heart attack be accompanied by feeling short of breath? (6 points)
Scientists in Brazil have developed specific fertilizers and special breeds of soybeans and corn so crops can grow on large areas of tropical lands. This is valuable because farmers can help to feed the growing human population and strengthen the economy. However, trade-offs must be considered because farming on tropical lands can also A add helpful microorganisms to the soil B remove oxygen from the atmosphere C reduce populations of native species D reduce mutations and disease in wildlife populations
Answer:
C reduce populations of native species
Explanation:
The overexploitation of the land by farming practices represents one of the most important challenges that face wild populations and threatened species, representing a concern to biodiversity conservation. Farming practices can destroy the natural structure of the soil, reducing diversity by killing small animals (e.g., insects), bacteria, and fungi that live in the substrate. Moreover, runoff may also carry herbicides and pesticides used in monocultures that can damage aquatic ecosystems, disrupting and killing aquatic wildlife and polluting water sources. Some ecological farming methods that help to reduce biodiversity loss include, among others, the use of natural fertilizers, diversification of crops, biological pest control, etc.
"Draw a pedigree for hitchhiker’s thumb. Your pedigree should cover at least two generations and include both dominant and recessive forms of the trait. Label the pedigree with genotypes, using the letter H to represent the dominant allele for the trait and the letter h to represent the recessive allele."
I'm confused on the part about having two generations. How do I set up the pedigree?
Answer and Explanation:
First, you need to know how to interpret a pedigree representation.
Family members→ Individuals are represented with geometrical figures.
→ Males are squares
→ Females are circles
Trait/Phenotype→ Healthy/normal/not affected individuals are represented with empty figures
→ Affected/mutated individuals are represented with solid black figures
Generations→ Each file is represented with a roman number, indicating the Generation.
Now, what we need to do is to draw a pedigree for a hitchhiker’s thumb. We know that this is an autosomal dominant trait, which we will represent with an H. No hitchhiker's thumb is the recessive trait, and it will be represented with an h.
Our pedigree should cover at least two generations and include both dominant and recessive forms of the trait.
We can cross two heterozygous individuals, Hh, who are the first generation in our pedigree. This cross will result in a woman and a man with No hitchhiker's thumb, another man with a hitchhiker's thumb, HH, and another woman with a hitchhiker's thumb, Hh. These individuals will represent the second generation in the pedigree. Finally, we can cross the man with No hitchhiker's thumb, hh, with a woman who does not have a hitchhiker's thumb either, hh. And the woman with a hitchhiker's thumb, Hh, with a man with a hitchhiker's thumb, HH. The result of these crosses will be the third generation.The representation would be like following,
I → First-generation: First cross
Man Hh (1) Woman Hh (2)II → Second-Generation: F1 and second crosses
Man hh (3) x Woman hh (4)Woman hh (5)Man HH (6)Woman Hh (7) x Man HH (8)III → Third-Generation:
A boy (9) and a girl (10) hhA girl (11) HHYou will find this pedigree in the attached files. In this example, we included three generations. The first one belongs to the grandparents, the second one to parents, aunts/uncles, and the third one to grandchildren.
If you draw another pedigree, remember to include
the figures representing males and females, color and H/h representing the phenotype, Roman numbers representing the generations, and optional, numbers naming each member.
Which of the following accurately describes covalent bonds?
A. Covalent bonds are formed when atoms share one or more
electrons.
B. Covalent bonds are formed when atoms transfer one or more
protons.
C. Covalent bonds are formed when atoms share one or more
protons.
D. Covalent bonds are formed when atoms transfer one or more
electrons.
Answer:
A
Explanation:
A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms. These electrons are simultaneously attracted by the two atomic nuclei. A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions.
Answer: The answer is A Covalent bonds are formed when atoms share one or more electrons
Explanation:
PLEASE PLEASE ANSWER FAST PLEASE
what are the most common c0vId vaccine myths and how did they start? Explain your answer.
Answer:
The most common myths are:
- C0vid2019 vaccines cause autism
- C0vid2019 vaccines may modify your DNA
- C0vid2019 vaccines are unsafe
Explanation:
The most common myths associated with C0vid2019 vaccines are:
1- C0vid2019 vaccines may cause autism: In 1998, Andrew Wakefield and colleagues published a controversial study in the Lancet where they suggested that the measles, mumps, and rubella (MMR) vaccine may cause autism in some children. However, it has been showed that this study was based on erroneous statements and therefore this publication was retracted.
2- C0vid2019 vaccine may modify your DNA: it has been suggested that vaccines based on viral vectors (e.g. adenoviruses) and mRNA vaccines may modify the DNA of cells. This statement is false because these technologies cannot alter the DNA sequence. These vaccines are based on the production of an mRNA sequence that is translated into a viral protein (spike protein) which triggers an immune response
- C0vid2019 vaccines are unsafe: some people believe that C0vid2019 vaccines are unsafe because they were developed quickly. However, this statement is false because all vaccines (including C0vid2019 vaccines) need to follow rigorous safety standards to be approved by governmental agencies (i.e., they approved all clinical trials).
Where does haemoglobin become oxyhaemoglobin?
Answer:
Oxyhemoglobin is formed during physiological respiration when oxygen binds to the heme component of the protein hemoglobin in red blood cells. This process occurs in the pulmonary capillaries adjacent to the alveoli of the lungs.
Explanation:
Describe the connection between limiting factors and invasive species
Answer:
Invasive species consume limited resources and become competitor of native species in a given ecosystem
Explanation:
Invasive species are the outsider species introduced in any given ecosystem. These invasive species become a competitor with the native species of that ecosystem for limited resources and hence deplete the limited resources at a faster pace thereby leaving all other species at the risk of dying.
If someone called you a diploid, why would you not be offended?
Answer:who knows
Explanation:
Pls, help me with this question
the answer should be mRNA, hope this helps!
What stage of mitosis is depicted by the image above?
O metaphase
telophase
O prophase
O anaphase
cytokinesis
Answer:
telophase
Explanation:
because the chromatids are pulled to the opposite sides
During phagocytosis of one cell to another, the larger cell engulfs the smaller cell by enclosing it in a part of its plasma membrane which then pinches off so the cell is then within the larger cell. Given this may have been the process that brought bacterial cells into the ancestors of eukaryotic cells as endosymbionts, what structural characteristics might be expected in mitochondria and chloroplasts?
Explanation:
Phagocytosis is the process by which cells ingest large particles, including other cells, by enclosing the particles in an extension of the cell membrane and budding off a new vesicle. During pinocytosis, cells take in molecules such as water from the extracellular fluid.
Saprophytes play a major role in Nitrogen cycle. Justify ?
Answer:
yes now mcq partner sso explain is nit nessesary
HLPE ME FAST PLSSSSS NEED HELP PROBS WILL GIVE BRAINLY
Answer:
28. Transverse (all electromagnetic waves are transverse)
29. White light.
A light wave is a transverse wave.
If we mix red, blue, and green lights we would make white light.
Hope this helps! :D
Classify this cell type
DONT POST ANY LINK IN THE ANSWER OR ELSE I WILL REPORT YOU. Will mark BRAINLIEST if correct :)
What do checkpoints do in the cell cycle?
Answer: Checkpoints in the cell cycle A checkpoint is a moment in the eukaryotic cell cycle where the cell considers internal and external inputs before deciding whether or not to divide. There are other checkpoints, but the following are the three most important: At the G/S changeover, there is a G checkpoint.
Explanation:
knowledge!
What would happen if an electric fish was always negatively charged instead?
quick
Answer:
This creature’s powerful jolts not only act like a radar system but also can trick its prey into revealing their location
Explanation:
What is environmental sustainability in agriculture? Name four factors that are required for environmental sustainability in agriculture
Answer:
The correct answer is - without compromising climate health and providing social equity and agriculture needs.
Explanation:
Environmental sustainability in agriculture means farming in a sustainable way to provide the required needs of society such as food and textile etc without harming or compromising the environmental health for future generations. This type of agriculture practice involves various factors including following:
-Managing water wisely,
- Maintaining healthy soil,-
- Minimizing air, chemical use, water pollution.
- Nutrients and organic fertilizers
help plz ill give brainly
Answer:
tapeworm
Explanation:
tapeworm will absorb nutrients from human's body
Answer:
tape worm
Explanation:
the infect the uhm rear area
can someone help me??
Answer:
2
Explanation:
because you don't selective breeding to weak gene.
hope this help u to understand:)
Atoms are the most basic unit of matter. Two or more atoms from the same or different elements can combine to form molecules.
Cells are the most basic unit of life. Cells are made up of many different types of molecules. Which of the following accurately shows higher levels of organization within organisms, from least complex to most complex?
A. cells → organs → organ systems → tissues → organism
B. cells → tissues → organs → organ systems → organism
C. cells → organ systems → organs → tissues → organism
D. cells → organs → tissues → organ systems → organism
-IF POSSIBLE PLS EXPLAIN Y THE OTHER ANSWERS ARE INCORRECT-
which process uses carbondioxide present in the air
a.burning of fossil fuels
b.production of glucose
c.asimillation in animals
d.breakdown of organic matter
Answer:
a.burning of fossil fuels
Answer:
b.production of glucose
Gametes produced by the parents are shown along the __________________ and _______________ sides of the Punnett square.
Answer:
Vertical and horizontal
Explanation:
A punnet square is a tabular chart used in genetics to display the genotypic composition of the offsprings of two parents. To construct a punnet square, the alleles of the gametes produced by the parents is required.
The gametes produced by each parent via meiosis are placed along the vertical and horizontal sides of the punnet square. For example, if a cross occurs between two parents with the following genotype: AaBb and AAbb. The parents will produce the following gametes:
AaBb - AB, Ab, aB, ab
AAbb - Ab, Ab, Ab, Ab
These gametes produces by each parent will be placed along the sides (vertical and horizontal) of a punnet square to determine the genotype of the offsprings that will be produced.
1. The table below shows the distance of the cat and the mouse from the cat's starting point at given times. After 1 second how far is the mouse
t
0.4
0.5
0.6
0.7
0.8
0.9
Dmouse
10.2
11.5
12.8
14.1
15.4
16.7
18
19.3
Dcat
6.8
8.5
10.2
11.9
13.6
15.3
17
1
18.7
1.1
1.2
1.3
1.4
O A 17 feet
O B. 18 feet
O c 2 feet
OD 3 feet
Answer:3 feet
Explanation:
Where does an avocado plant get carbon atoms to make proteins? *
Air
Water
Soil
Sunlight
Answer:
i believe it is A: air because carbon comes from air so if they take in the air to maike it they are also taking in carbon
Explanation:
What is most likely to happen if an individual restricts consumption of dietary fat to very low levels?
A.
development of scurvy
B.
development of atherosclerosis
C.
loss of insulation around vital organs
D.
loss of hemoglobin from red blood cells
Explain how you can use a pattern of clapping sounds to transfer information. PLS HELPPPPPPPP.
Answer:
You can use Morse code to transfer information
A tall pea plant is crossed with a short pea plant. All of the offspring that are produced are tall. Two of these tall offspring
are crossed. The Punnett square for this cross is shown below.
Cross of heterozygous plants
Parent 1
Tt
Parent
Tt
t
T
T TT
Tt
t Tt
tt
What can be concluded from this cross?
Tall pea plants can only produce tall offspring.
B Tall pea plants can only produce short offspring.
Tall pea plants can create tall, medium and even short offspring,
Tall pea plants can carry the short trait and create some tall and short offspring.
Answer:
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Answer:
Tall pea plants can carry the short trait and create some tall and short offspring.
Explanation:
There is no medium parent so no. There are small t's so no. As a result, it is short and tall.
A researcher stimulates, with a small electrical charge, a portion of a cat's limbic system. The cat suddenly jumps and acts as if it is fighting. What portion of the limbic system was stimulated
Answer: amygdala
Explanation:
The limbic system, refers to the set of brain structures that's located on the sides of the thalamus. The function of the limbic system include olfaction, behavior, emotion, and long-term memory.
Since the cat suddenly jumps and acts as if it is fighting, the portion of the limbic system that was stimulated is the amygdala.
HELPPP
A can of hair spray has a pressure of 300 psi at room temperature 21°C. The can is accidentally moved too close to a fire and its temperature increases to 295°C. What is the final pressure in the can? (Round answer to nearest whole number.)