The reasons why manure is an unreliable fertilizer include;
the nitrogen content may not be highit can reduce the nitrogen level of soil.What are fertilizers?Fertilizers are substances that when added to the soil improves the nuttrient content and fertility of the soil.
There are two types of fertilizers;
synthetic ferilizers - these are artificially manufacturedorganic fertilizers - these are obtained from lthe living environment e.g. manure.Manure is obatined from dropping of animals and decayed or decaying plants.
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Fertilization in angiosperms requires a pollen grain to rapidly grow a pollen tube from the stigma to the embryo sac. From there,
how does the pollen tube enter the embryo sac to reach the egg?
The pollen tube enters the embryo sac at the micropyle, which is a small pore at the bottom of the sac.
What is plant fertilization?
After pollination and germination, sexual reproduction in plants takes place during fertilisation. The joining of the male gametes (pollen) and the female gametes (ovum) to create a diploid zygote is known as fertilisation. After the carpel has been pollinated, a physical-chemical process takes place. The entire sequence of this process occurs in the zygote before it matures into a seed. Flowers are the reproductive structures of angiosperms, so they play a significant role in the fertilisation process. In plants, the process of fertilisation takes place when haploid gametes combine to form a diploid zygote. Male gametes are transferred into female reproductive organs by pollinators during fertilization, and the result is the development of the embryo in a seed.
Hence, the micropyle is essential for the entry of the pollen tube into the embryo sac.
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33. The human organism consists of several ___ each which includes a set of interrelated ___ that work together to perform specialized functions that contribute to ______
(A) organ systems, organs, homeostasis
B) cavities, organs, the organism
C) organs, tissues, maintenance
D) organ systems, tissues, overall
functioning
E) cell systems, organelles, overall
functioning
Answer:
Option A
Explanation:
cell->tissue->organ->system->organism
Suppose you were observing an organism through the microscope and noticed that it moved toward the bottom of the slide and then it moved to the right. What does this tell you about the actual movement is the organism?
Answer: top of the slide and to the left
Explanation:
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Photosynthesis is the process by which autotrophs produce their own food. It is an anabolic reaction in which energy is stored (endergonic). Consequently, Cellular Respiration is the opposite of Photosynthesis. In Cellular Respiration, heterotrophs consume food to produce energy. It is a catabolic reaction in which energy is released (exergonic). Both metabolic processes are essential to sustain life. Describe the similarities and differences between the biochemical pathways of Aerobic Respiration and Photosynthesis in eukaryotic cells. Include in your discussion the major reactions, the end products, and energy transfers.
The similarities between aerobic respiration and photosynthesis are that they are both metabolic reactions and ATP is used at some point in each of the reactions.
The difference between aerobic respiration and photosynthesis is that:
aerobic respiration produces carbon dioxide and water as an end-product whereas photosynthesis produces oxygen and glucose as an end-product. aerobic respiration uses oxygen and glucose as starting materials whereas photosynthesis uses carbon dioxide and water as starting materials ATP is used by photosynthesis, whereas ATP is produced in cellular respirationThe equations of photosynthesis and celli=ular respiration are given below:
photosynthesis: 6 CO₂ + 6 H₂O + ATP ---> C₆H₁₂O₆ + 6 O₂cellular respiration C₆H₁₂O₆ + 6 O₂ -----> 6 CO₂ + 6 H₂O + ATPWhat is photosynthesis?Photosynthesis is the process by which autotrophs produce their own food.
It is an anabolic process. The equation of photosynthesis is shown below:
6 CO₂ + 6 H₂O + ATP ---> C₆H₁₂O₆ + 6 O₂
Aerobic cellular respiration is a process by which oxygen is used by heterotrophs to break down food molecules to produce energy.
The equation of aerobic cellular respiration is given below:
C₆H₁₂O₆ + 6 O₂ -----> 6 CO₂ + 6 H₂O + ATP
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which new gene formation does fit to ortholog type of homology in evolution?
Gene duplication is a new gene formation phenomenon that fits the ortholog type of homology in evolution.
What is homology in evolution?The expression homology in evolution makes reference to the emergence of similarities between two or more sequences due to a common origin, which may occur as a consequence of gene duplication and subsequent divergence of ortholog sequences in order to play different roles as genetic material in the cell of an organism.
Therefore, with this data, we can see that homology in evolution is caused by similarities due to a common ancestor and it may be due to gene duplication.
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Ryan is about to board an airplane to fly to Florida for Spring Break. He is very anxious to fly, but he knows his body is having this normal reaction to a stressor. His palms start to sweat, his heart starts racing, and his breathing becomes much faster in anticipation of the flight. Construct an argument using the observations above of how the body is a system of interacting subsystems. Be sure to include at least two body systems involved and how they are working together during this stress response.
The body is a system of interacting subsystems as seen in the instance of Ryan for the following reasons:
the nervous system interacts with the respiratory system to increase the breathing ratethe nervous system interacts with the cardiovascular system to increase blood flow.What are organ systems?Organ systems refer to the system of organs found in the body that work together to perform one or more specific functions.
There are several organ systems in the body that interact with each other.
Some of the organ systems in the body interacting with each other include:
nervous systemmusculoskeletal systemdigestive systemexcretory systemrespiratory systemThe stress response in the body is an example of the interaction of the organ systems in the body.
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The arctic fox is uniquely adapted to its environment with white fur for camouflage, a small nose and ears and warm coat to prevent heat loss and strong paws for running and hunting. Which statement best describes how the arctic fox population may have adapted « its environment over time?
A. Foxes were bred to meet human needs for white fur.
B. Foxes developed smaller ears and noses in response to their cold climate. They were able to survive and pass this trait on to their offspring.
C. Foxes changed their fur to white to hide from predators and disguise themselves from their prey. They were able to survive and pass this trait on to their offspring.
D. Variation existed in the traits of the fox population. Foxes with smaller ears and noses were able to stay warmer and were more likely to survive and reproduce to pass their genes on to offspring. Over time, the fox population showed a shift to smaller ears and noses.
Answer:
D. Variation existed in the traits of the fox population. Foxes with smaller ears and noses were able to stay warmer and were more likely to survive and reproduce to pass their genes on to offspring. Over time, the fox population showed a shift to smaller ears and noses.
Explanation:
Adaptation does not happen overnight, and humans didn't breed foxes to have white fur. Smaller ears and noses allow less exposure to the cold because of their smaller surface area, which prevents heat loss. Foxes with smaller noses and ears didn't die of hypothermia, which allowed them to survive and breed and pass their genes to their offspring.
Which of the following distinguishes the first step of waste disposal, no matter the system?
Responses
gather
use
transport
treat
Answer: it is gather
Explanation:
Answer: The correct answer is gather
Explanation: This answer has been confirmed correct.
The steps for waste disposal (in order) are; gathering, storing, treating, transporting, and using.
How do pollinators help
angiosperms?
A. Pollinators help disperse a plants
seeds when they eat the fruit and then
expel the seeds.
B. Pollinators help plants adapt to
their environment through natural
selection.
C. Pollinators eat nectar from the
flowers and pick up and drop pollen as
they move between flowers.
this
Answer:
c
Explanation:
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Answer: C. Pollinators eat nectar from the flowers and pick up and drop pollen as they move between flowers.
The sequence of nucleotides in mRNA is determined by the sequence of
nucleotides in
a. amino acids
b. DNA
c. tRNA
d. ribosomes
Answer:
DNA
Explanation:
The sequence of nucleotides in mRNA is determined by the sequence of nucleotides in DNA .
The process of copying of genetic information from DNA to RNA is called transcription , and it follows the complementarity .
For eg. - If DNA sequence is ATTCGA then the RNA sequence will be UAAGCU .
( Adenosine forms base pair with Uracil instead of Thymine in RNA )
Deforestation has removed many habitats for bats. This action has impacted
which nutrient cycle the most?
Hydrologic cycle
Sulfur cycle
Nitrogen cycle
Phosphorous cycle
Carbon cycle
Deforestation has removed many habitats for bats this action has impacted nutrient cycle the most is hydrologic cycle
Deforestation refer to the decreases in forest area across the world that are lost for others uses such as agricultural croplands, urbanization or mining activities and greatly accelerated by human activities and a nutrient cycle is a repeated pathway of particular nutrient or element from the environment through one or more organism and back to the environment and deforestation can disrupt the water cycle by decreasing precipitation which can lead to change in river flow and water volume
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Mendel found that yellow pea pod color (G) was dominant to green pea pod color (g), and that round seeds (W) were dominant to wrinkled seeds (w) what percentage or each or
the phenotypes below are expected from the following cross? Ggww x ggww
Yellow and round
Yellow and wrinkled
Green and round
Green and wrinkled
A. 0%
B. 25%
C. 33%
50%
D.
E.
66%
F. 75%
G. 100%
The phenotype of the offspring that will be obtained from the cross of Ggww and ggww will be: Yellow and wrinkled- 50% and green and wrinkled- 50%. The cross is shown in the given image.
The phenotype is the observable trait that are the result of a certain genotype. Phenotypes may be quantitative like height or it may be qualitative like eye or hair color. The phenotype may be entirely due to genes or it may be influenced by environmental factors as well.
A cross can be defined as the breeding between a male and a female parent to obtain their offspring. The motive of performing crosses in genetics is to analyze the genotype and their resulting phenotype. There are various types of crosses like test cross, back cross, reciprocal cross, etc.
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Depending on the organism, the number of _____ in a cell
Answer:
Chromosomes
is the answer
QUESTION 1
Which of the following is FALSE about immunity?
A. T cells originate in the bone marrow and move into the thymus to mature
B. B cells only recognize processed antigens
C. Memory B and T cells are important in the secondary immune response and immunity
D. autoimmune diseases are when the immune system mounts an immune response to something in our own body that it should't
The statement B cells only recognize processed antigens is false about immunity. Therefore, option (B) is correct.
What are the functions of B-cells?Antigen presentation, costimulation, and cytokine production by B cells contribute to T-cell activation; affect tissue inflammation and antimicrobial defenses; and, most importantly, play the role of regulatory cells.
The two antigen-binding regions of B cell receptors are made up of four peptides, two of which are light chains and two of which are heavy chains. Heavy chains can be IgG, IgA, IgM, IgD, or IgE isotypes.
The B-cell is typically an important regulatory cell in the immune system; It acts by directly contributing to inflammatory pathways, supporting other mononuclear cells, producing antibodies, and antigen-presenting cells.
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Help!!!
What does it mean for an
angiosperm to be annual?
A. It has a two-year life cycle, one as a
sapling and the next to bloom and
reproduce.
B. It grows, flowers, reproduces and
dies all in one year.
C. It will remain alive underground and
for many years will grow, flower, and
reproduce.
Answer:
I think it's B. It grows, flowers, reproduces and dies all in one year.
Explanation:
B because annual means occurring every one year, so you can cancel out A because it says "two-year life cycle". You can also cancel C because angiosperms can't live underground.
Which process would change metamorphic rock to igneous rock?
O melting followed by cooling
O pressure followed by weathering
O erosion followed by compaction
O cooling followed by cementation
Answer:
The correct answer is Option A.
Explanation:
A metamorphic rock becomes an igneous rock through the process of solidification. In this process, the atoms in the rock rearrange themselves until they form a solid structure. The atoms in a liquid or gas are in constant motion, but when they are solidified, they form a fixed, crystalline structure.
Answer:
A is the right answer
Explanation:
I got it right
If you go to the dermatologist and he or she removes a mole, what do you think is done with that tissue sample?
A doctor uses a circular tool to remove a small core of skin, including deeper layers (epidermis, dermis and superficial fat). Excisional biopsy. A doctor uses a small knife (scalpel) to remove an entire lump or an area of abnormal skin, including a portion of normal skin down to or through the fatty layer of skin. The mole is removed in a procedure under local anaesthetic. You will be given a local anaesthetic by injection at the place on your body where the biopsy will be taken from. The local anaesthetic may sting a little when it is injected, however, the skin will then go numb and the operation should be pain-free.
Explanation:Surgical excision:The dermatologist cuts out the entire mole and stitches the skin closed if necessary. Surgical shave: The dermatologist uses a surgical blade to remove the mole.In neuroscience terms, neurons have two types of impulses
If you wanted to find support for the idea that all living things are composed of cells, what evidence would you need
to gather?
I would compare nonliving things and living things to determine if there are similarities
I would examine many kinds of living things under a microscope and look for the presence of cells
I would conduct experiments to determine the function of cells from many different living thing to see if they
are similar
I would examine nonliving things to verify that the smallest parts are not cells
I would examine many kinds of living things under a microscope and look for the presence of cells.
Option B is correct.
What proof is there that cells make up all living things?Using an early microscope, Robert Hooke finds dead cells. In order to see living cells like bacteria, Anton von Leeuwenhoek creates a more potent microscope. All living things are composed of cells, and cells can be created from other cells, according to Matthias Schleiden and Theodor Schwann.
What kind of proof would at least partially validate the cell theory's tenets?What kind of proof would at least one of the tenets of the cell theory be supported by? There are no cells in rocks or other nonliving substances. It has been found that cells change one type of energy into another. To observe nearly all cells, a microscope is required.
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Where and how proteins are made (transcription and translation)
Answer:
Cell uses the genes to synthesize proteins. This is a two-step process. The first step is transcription in which the sequence of one gene is replicated in an RNA molecule. The second step is translation in which the RNA molecule serves as a code for the formation of an amino-acid chain (a polypeptide).Aug 20, 2011
What does the Adenovirus death protein do?
25. (03.06 LC)
In which zone would you expect to find the least amount of biodiversity due to the variable conditions it experiences? (3 points)
Sublittoral zone
Low intertidal zone
High littoral zone
O Middle intertidal zone
In the High Littoral Zone one can expect to find the least amount of biodiversity.
What are Littoral Zone?
When sunlight is present at the sediment level, aquatic plants that are partially to totally submerged flourish and are said to be in the littoral zone of an aquatic ecosystem(river, lake, or sea). Numerous nutrients, dissolved oxygen, water velocity, and alternate periods of submersion and exposure are other characteristics.
What is Biodiversity?
The variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural environment are all included in what is known as biodiversity. These various species and organism collaborate in complicated web-like ecosystems to keep things in balance and support life.Biodiversity supports everything in nature that we need to survive: food, clean water, medicine, and shelter.
Therefore, High Littoral Zone would be the correct answer.
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which of the following are socioeconomic impacts of flooding
The socioeconomic impacts of flooding are decreased purchasing and production power.
What is Flooding?
This is referred to as the process in which water overflows and submerges the land which is usually dry. It leads to different types of negative consequences such as disruption of the ecosystem etc.
This occurrence leads to the displacement of people from their homes as a result of the place not being conducive enough for living due to the presence of water and other types of organisms in the home and can be prevented by providing appropriate drainage channels.
It leads to erosion in agriculture and the crops are destroyed which will lead to it decreasing production power. The purchasing power is also reduced as it threatens the livelihood of a vast majority of the affected individual.
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Auxin-based weedkillers can be sprayed over an entire crop of narrow-leaved wheat in a field, but only broad-leaved weeds will be killed. The explanation for this is that...
The leaf absorbs less auxin due to its smaller leaf surface area. That is option C.
What is auxin?Auxin is a type of plant hormone that is used to enhance cell elongation, cell division, and cell differentiation in the roots of plants.
The Auxin-based weedkillers are those kind of weedkillers that contains the plant hormone, auxin. This is used for weed control in farm lands because of its ability to selectively destroy dicot weeds that are characterized with broad leaves.
Therefore, only broad-leaved weeds will be killed and not the narrow-leaved wheat in a field spread with the Auxin-based weedkillers.
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Prompt:
Indonesia has recently decided to move the location of its capital from Jakarta to Borneo. Research and explain why the government has decided to make this major change. Discuss how the movement of the capital is related to the availability of natural resources and the occurrence of natural hazards.
The reason why the government has decided to make this major change of moving the location of its capital from Jakarta to Borneo is that the the economy of Indonesia is located around the place with availability of natural resource, and this help to save sinking and congested Jakarta which is occurrence of natural hazards.
What was the reason for the relocaion of the capital?The reason for the relocaion of the capital can b attributedd to the acvailability of the better economyt that can be seen in the new capital, it should be noted that the relocation is been done on the basis that there will be availability of resources that will help in the nation building.
In addition the relocation was also done to save the sinking and congestion of Jakarta and to help in the enhancement of the development that could take place in Kalimantan as well as eastern Indonesia, because their economic activity dep[ends on this.
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List the steps in the process of family intervention and tell what happens at each step.
There are 5 steps to the process of family intervention which includes:
Self education - learn about the disease or conditionInvolve a moderator - Hire a professional interventionist who is skilled at handling the situationsBe direct - explain the impacts of the condition to the familyDiscuss consequences - talk about the ultimatums and what would happen for not seeking helpPropose treatment alternatives - propose other treatments or replacements for conditions or addictionManage expectations - remember there could be setbacks and incorporate plans for them.What are the process to family intervention?These are steps taken to ensure that family members undergo treatments necessary to help them recover from damaging habits and conditions harmful to health such as addictions, abuse, etc.
Some of these steps include Self education, being direct, discussing consequences, proposing treatments and managing expectations.
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Which statement describes the cyclic nature of seafloor spreading?
A. Continents are created
B. New oceanic crust is created
C. Volcanoes erupt and remove crust
D. The old crust gets thicker at subduction zones
Please hurry i have 10 minutes left
Answer:
volcanoes erupt and remove crust
Answer: the answer is C. Volcanoes erupt and remove crust
Explanation: I got it right on edge 2021
How do analogies evolve?
Hello!
Analogies are the result of convergent evolution.
What is analogy evolution?
means having similarities in functions but different evolutionary origins. ( Different species with different evolutionary lines use their biological structures for the same purpose.)
which is also called convergent evolution.
Explain why the response of the eye to light is faster than the response of
the seedling to light.
Answer:
Eye is controlled by brain which is quicker than the seedling. When the light enters the eye, the optic nerves detect the light and sends the message to the brain quickly. This speed of response is not in plants. Therefore, the response of the eye to light is faster than the response to seedling to light.
Explanation:
Which stage of cell cycle does cells divide into 2 cells
Answer: Cytokinesis
Explanation: P. S. it's not a stage, just the final step.
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