Answer:
A pathogen is defined as an organism causing disease to its host, with the severity of the disease symptoms referred to as virulence. Pathogens are taxonomically widely diverse and comprise viruses and bacteria as well as unicellular and multicellular eukaryotes.
A pathogen is an organism that causes disease.
Explanation:
A pathogen is usually defined as a microorganism that causes, or can cause, disease. We have defined a pathogen as a microbe that can cause damage in a host.
Carbon is found in all living organisms. the constant flow of carbon on earth through organisms and the air is known as the carbon cycle. plants absorb carbon from the atmosphere in the form of carbon dioxide. they use it for respiration and photosynthesis animals consume plants, transferring carbon along the food chain. plants and animals respire and release carbon into air. when the animals and plants die, they are eaten by carbon enters back into the atmosphere in the form of
According to the research, most of the carbon quickly enters back into the atmosphere in the form of carbon dioxide.
What is the carbon cycle?It is the process that describes the flow of carbon (in the form, for example, of carbon dioxide) in the atmosphere, the ocean, the terrestrial biosphere.
Thus, the CO2 in the atmosphere passes through photosynthesis to the plants, also the cycles of respiration and microbial decomposition intervene, which release new CO2 in gaseous form into the atmosphere.
Therefore, we can conclude that according to the research, most of the carbon quickly enters back into the atmosphere in the form of carbon dioxide.
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Answer:Decomposers an carbon dioxide
Explanation:
The organs of the urinary system include:.
The main organs of the urinary system are the kidneys, renal pelvis, ureters, bladder and urethra.
Complete the sentence.
Warming air temperatures are slowing melting glaciers. As they melt,
O limiting phenomenon
O peak phenomenon
O primary succession
O secondary succession
occurs as new growth spreads on the newly exposed land.
Warming air temperatures are slowing melting glaciers. As they melt,primary succession. Thus, option "C" is correct.
What is succession?Succession is the natural development of a series of biotic communities at the same site. There are two types of succession; primary and secondary.
Primary succession occurs on lifeless unoccupied areas while secondary happens right after that and in there soil and some organism is present already.
Thus, option "C" is correct.
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Magnifying Living Things
a leaf,tree bark,skin,flower.hair strand,grass
Did you observe any other characteristics of life in your samples?
For each of your samples, research how the structures you observed under magnification help the organisms carry out basic functions of life.
The characteristics of life observed in the samples was the presence of different types of cells.
What is Magnification?This is defined as the process of enlarging the apparent size of an object through objects such as a microscope.
The structures observed under magnification of leaves include the epidermal cells which help the organisms carry out gaseous exchange.
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The diagram represents several stages of the cell cycle.
G,
s
G
M
During the cell cycle, normal cells exit the G1 phase and enter the Go phase where they rest. Typically,
cells will reenter the cycle at G1 prior to going on to S phase. However, abnormal cells such as cancer
cells, may not be allowed to enter the Go phase to rest.
As a result, these cells will most likely -
F. mutate during G2 phase
G. continuously repeat the cycle
H. die after DNA replication
J. fail to complete mitosis
Abnormal cells such as cancer cells, may not be allowed to enter the G0 phase to rest. These cells will most likely continuously repeat the cell cycle.
What do you mean by Cell cycle?The Cell cycle may be defined as the entire sequence of events happening from the end of one nuclear division to the beginning of the next nuclear division.
The abnormal cell undergoes a repeated cell cycle because they express an enzyme called telomerase that switches the wearing down of chromosome ends.
This happens normally in the cell cycle, and after multiple repeated cycles, such abnormal cell undergoes apoptosis.
Therefore, abnormal cells such as cancer cells, may not be allowed to enter the G0 phase to rest. These cells will most likely continuously repeat the cell cycle.
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How can reduced precipitation lead to limited water availability? a. reduced precipitation leads to overuse. b. precipitation is a nonrenewable resource. c. reduced precipitation is a global event. d. reduced precipitation may lead to drought. please select the best answer from the choices provided a b c d
Reduced precipitation lead to limited water availability in such a way that (D). reduced precipitation may lead to drought.
Meaning of PrecipitationPrecipitation can be defined as any form of water either liquid or solid that is formed in the atmosphere and falls down to the earth as rain, snow, hail and sleet.
Precipitation is one of the major part in the global water cycle.
Precipitation is so important because it tends to determine the amount of water that is on earth and in the atmosphere.
In conclusion, Reduced precipitation lead to limited water availability in such a way that reduced precipitation may lead to drought.
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Some plant species and animal species depend on each other. Which of these animals help thousands of plant species to reproduce?.
Answer:
bees, birds, butterflies, bats, but mostly bees.
Explanation:
I just need a description of what role bees play in pollination (it’s horticulture) btw
Answer:
Bees are essential for the growth of flowers and plants. They use the process of pollination where they transfer small grains of pollen from one flower of the same plant to another flower of the same species. This pollen transfer helps the flowers to get continuous growth.
Explanation:
Answer:
In the nature, plants reproduce s*exually but unlike many organisms, they do not directly mate with their opposite gender for reproduction. Their mechanism of reproduction in short is that male flowers produce pollens (yellow, powdery type thing) in thei anthers (male fower gamet) and when these pollens get contact with the female flower's stigma, the pollen fuses with the ovule and produces a fruit containing the seed.
Now how do we get these pollens moving from anthers to stigma? There are two ways. The first is by wind, when wind blows, it carries the lightweight pollens through the air and it falls onto a female flower.
the second one is by bees.
Those flowers produce nectar deep in the flower which can be sensed by bees. Bees enter the flower to collect the nectar while pollens are stuck on to its body. The bees travel to another flower for collecting nectar and when they do, the pollens from the body enter the stigma.
What seasonal response(s) to spring do animals in florida have that give them a better chance of survival?
a. animals begin to gather and store food to prepare for the hot temperatures.
b. animals have no responses to the seasonal changes of warmer temperatures.
c. spring is a season of reproduction and growth for animals. plants begin to grow and provide animals with plenty of food.
d. spring is a season of dormancy. animals will hibernate until they have more water, sun, and food.
what is needed to create a self-sustaining ecosystem inside of a dome?
Sequence the steps in how a nerve impulse moves from one neuron to another neuron, by writing the numbers 1 to 5 in the squares to the left of the steps.
Help me please.
The steps in how a nerve impulse moves from one neuron to another neuron can be describe as dendrite – cell body – axon.
How does the nerve impulse occur?The nerve impulse starts when the neuron experiences a stimulus strong enough to trigger it. This happens when a membrane is at resting potential, a condition where the inner surface of the membrane is negatively charged relative to the outer surface.
In this case, the correct steps will be in a neuron, the stimuli always propagate in the same direction: they are received by the dendrites, travel through the cell body, travel along the axon and, from the end of this, are passed to the next cell (dendrite – cell body – axon).
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In general, what happens to the hormone levels between days 21-27 just prior to menstruation if the egg was not fertilized
If the egg has not been fertilized, the increase in progesterone and decrease in estrogen, forcing the egg to be expelled.
What hormones change during menstruation?It is known that in the premenstrual period there is a drop in serotonin levels. The second important factor to cause PMS is the hormonal change that occurs in the second half of the menstrual cycle, with an increase in progesterone and a decrease in estrogen.
With this information, we can conclude that if the egg has not been fertilized, the increase in progesterone and decrease in estrogen, forcing the egg to be expelled.
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Which of these is made up of organs?
Choose 1 answer:
(A) a cell
(B) an organ system
(C) a tissue
Answer:
Organ System
Explanation:
A group of cells make a tissue.A group of tissues make an organOrgans combined together form an organ system.An organ system is made up of organs.
What are organ systems?An organ system is a biological system consisting of a group of organs that work together to perform one or more functions. Each organ has a specialized role in a plant or animal body, and is made up of distinct tissues.
Moreover, the 11 organ systems include the integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive systems.
Hence, they are Integumentary System, Skeletal System, Muscular System, Nervous System, Endocrine System, Cardiovascular System, Lymphatic System, Respiratory System, Digestive System, Urinary System, and Reproductive System (Female and Male).
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Why are meerkats affected by the plant population?
Answer:
They largely depend on it for survival as meerkats are omnivores.
Explanation:
The combined effects of hotter and drier summers and fewer plants would threaten the persistence of the meerkat population. Since they eat plants and other living bugs that usually hang out in plant-abundant areas, their [meerkats] survival depends on the range of plants near them.
question; both trypanosoma and plasmodium are different in .......
a) type of nucleus
b) ability to move
c) mode of nutrition
d) phylum they belong to
I passed all my exams because of brainly!
Answer: sheesh
Explanation:
6. An important role of bicarbonate ions in human blood is to
(A) carry oxygen
(B) act as a buffer
(C) bind with hemoglobin
(D) supply cells with carbon
(E) increase the rate of cellular respiration
Bicarbonate ions present in body performs a variety of functions, in blood it carries carbon dioxide. Its other functions include keeping the balance of acids and bases in the body. It acts as a buffer.
What is a buffer?Buffer is a type of solution that resists pH change either by the addition of acid or base.
Bicarbonate is a base, which the body requires to keep a normal acid-base (pH) balance.
This balance prevents the body from having too much acid means maintaining buffer. The lungs and kidneys helps to keep a normal blood pH by removing excess acid.
Thus, the correct option is B.
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Humans are dependent on a functioning biosphere and other ecological systems for survival. please select the best answer from the choices provided t f
The statement 'Humans are dependent on a functioning biosphere and other ecological systems for survival' is TRUE.
What are ecological systems?The expression ecological systems make reference to the different levels of organization of the ecosystems.
These systems (ecological systems) are found in a delicate equilibrium in nature.In conclusion, the statement 'Humans are dependent on a functioning biosphere and other ecological systems for survival' is TRUE.
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You are studying the phenotypic traits of bone density and muscle mass in cattle and find that the two traits have a correlation coefficient of -1.0. What is the interpretation of this statistic
A correlation coefficient of -1 means that bone density and muscle mass are perfectly correlated but in opposite ways.
Correlation coefficientThe correlation coefficient, r, is a measure of the strength of the relationship between two variables.
r = 0 means that the two variables in question have no relationship, r = 1 means that the two variables are perfectly correlated in the same way, and r = -1 means that the two variables are perfectly correlated but in opposing ways.
The implication of the -1 correlation coefficient is that bone density increases with decreasing muscle mass and vice versa.
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How were scientists able to identify what gene was mutated when they studied families in Finland?
The scientists employed the use of X-exome sequencing to identify rare gene mutations in the families.
What is X-exome sequencing?This involves the process of genes on chromosome X being identified through positional cloning and used ib various studies.
This was used to identify rare gene mutations in the families in Finland thereby making it the most appropriate choice.
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Which substances are needed to make food in plants?.
Answer:
To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis. Carbon dioxide enters through tiny holes in a plant's leaves, flowers, branches, stems, and roots. Plants also require water to make their food.
Explanation:
Chance changes in allele frequencies within a population are called:.
organisms swimming _______ are moving with the flow of water.
A) Downstream
B) Meltdown
C) Turbine
D) Ethanol
E) Passive solar cooling
F) Utility
G) First Law of Energy
H) Refinery
I) Isotopes
J) Second Law of Energy
Answer:
A) Downstream
Explanation:
Hope this helps! ;-)
Multiple choice: Circle the best answer.
a
The height of a plant is likely to be determined by
a. genetic factors.
b. factors in the environment.
C. both genetic and environmental factors.
d. neither genetic nor environmental factors.
Why the leaves are green
Based on the graph, it can be concluded that the isotope which is most likely to be found with 6.25% of its original amount in 6 billion years is
Uranium-238
Thorium-235
Potassium-40
Rubidium-87
Potassium is most likely to be found with 6.25% of its original amount in 6 billion years because the half life of Potassium-40 is 1-1.5 billion years in graph. Thus the correct option is C.
If it half in 1 to1.5 billion years = 50% gain
1-1.5 billion years = 25%. gain
If we do that 2 more times we will get 12.5% and then 6.25% gain.
What is half life?
Half life is defined as the time required for half of the atoms of a radioactive substance to become disintegrated.
Our estimate is about 1-1.5 billion years so repeating that about 4 times we get around 4-6 billion years for it to gain 6.25%. From this it can be concluded that Potassium-40 as since it comes the closest to remaining at 6.25% its original amount after approximately 6 billion years.
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the special type of cell division required to produce gametes is called
Answer: Meiosis
Explanation:
Meiosis creates gamete "daughter cells" that have half the chromosomes as a normal cell that would be created during mitosis, which is the division and reproduction of identical cells from the parent. In humans, a regular 46 chromosome cell divides through meiosis to create gametes with 23 chromosomes. This is important to be sure that an organism that is made through reproduction with sperm and egg has the correct number of chromosomes.
photosynthesis takes place inside organelles called
the structure labeled 2 represents a molecule of
a
DNA
b
mRNA
c
tRNA
d
rRNA
Answer:
The structure labeled 2 is tRNA, transfer RNA
cells must control gene expression so that
