Answer:
Explanation: The environment in totality is responsible for life on Earth. Class 10th Biology Our Environment notes tell that environment consists of both biotic and abiotic factors. While biotic factors refer to living things, abiotic factors refer to non-living things.
Climax community- most stable community that takes hundreds of years to develop. The types of organisms change due to __?__.
competition
random chance
being the luckiest
1 Vaccines have been produced to prevent and treat both tetanus and meningitis.
True
False
2 Tetanus is caused by polluted drinking water.
True
False
3 Tetanus can occur in crushing or deep wounds.
True
False
4 Meningitis may be transmitted from one person to another by:
water
sneeze
cough
soil
5 Meningitis most frequently affects:
adults
children
adolescents
women
Answer:
In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response.
Answer:
1. true
2. false
3. true
4. sneeze, cough
5. children, adolescents
Explanation:
NERVOUS SYSTEM INFECTIONS
FULL QUIZ ANSWERS:
1. Tetanus is caused by polluted drinking water.
FALSE
2. Tetanus can occur in crushing or deep wounds.
TRUE
3. Communication for the senses and muscle coordination in the body is accomplished by the __________ system.
NERVOUS
4. Inflammation of the membrane linings of the spinal column or the brain is called ________________.
MENINGITIS
5. Meningitis most frequently affects:
CHILDREN
ADOLESCENTS
6. Muscle spasms and locked jaw, followed by convulsions, are symptoms of:
TETANUS
7. Vaccines have been produced to prevent and treat both tetanus and meningitis.
TRUE
8. Chlostridium tetani thrives near the surface of the skin.
FALSE
9. Why is tetanus associated with injuries which occur outdoors?
BACTERIA IN THE SOIL CAUSES TEANUS
10. Meningitis may be transmitted from one person to another by:
SNEEZE
COUGH
Identify the meaning of the underlined word in the following sentence:
The culling of the cows was done as a means of preventing the spread of BSE
a.
process that determines which animals in a herd will not be bred
c.
The process of separating the herd by male and female
b.
taking blood samples from the cows
d.
all of the above
Culling of the cows to avoid the spread of the disease BSE is a process that determines which animals in a herd will not be bred.
What is culling?Culling refers to a selective slaughter of animals which are either infected or which have traits that make them undesirable.
The disease BSE is a disease that affects cows and which cannot be treated.
Therefore, culling of the cows to avoid the spread of BSE is a process that determines which animals in a herd will not be bred.
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Answer:
a
Explanation:
Please can anyone help me ill make you the brainiest, I need help with these questions!
1.How many moles of oxygen react with 10.5 moles of methane?
2.How many moles of methane react with 10.7 moles of oxygen?
3.How many moles of carbon dioxide are produced from 80 moles of methane?
4.How many moles of water are produced from 800 moles of methane?
5.How many grams of oxygen will react with 85 grams of methane?
Answer:
the moles of oxygen react only 1.05 moles
Explanation:
because the formula of methane is CH4 so it has 10 molecule so 10.5 ÷10 =1.05
The infection-fighting cells that are produced by the immune system are manufactured in specific places around the body, for example, in the lymph nodes and the spleen. However, an infection can occur anywhere in the body. How do these infection-fighting cells manage to move around the body and get to the sites of infection?
A. There are lymph nodes every few millimeters all over the body.
B. They are excreted and float freely around the body, hunting infections.
C. They are carried around the body in the circulatory system.
D. They are moved around the body as muscles squeeze against them.
Answer:b
Explanation:
Which one is wich definition?
Answer:
Will you be my friend ???
the xx chromosome type is found in__
Answer:
[tex]females \: \: \: \: \: \\ it \: is \: your \: right \: answer \: [/tex]
Which statement is true about a relationship between DNA, a gene and a chromosome?
A gene is similar to DNA in structure but different in function,
O A gene is similar to DNA in function but different in structure.
A gene is made up of small segments of chromosomes.
O A gene is made up of a small segment of DNA.
Answer:
A gene is made up of a small segment of DNA.
Explanation:
If mom and dad have green eyes, you might inherit the trait for green eyes from them.
The study of developmental biology shows that
A. closely related species will show similarities in embryos.
B if species have changed over time, their genes should have changed.
C closely related species will show similarities in amino acid sequences.
D distantly related species will show similarities in anatomy.
Answer:
A
Explanation:
Hope this helps!!!
The study of developmental biology has been found to show that the closely related species show similarities in embryos. Thus, the correct option is A.
What is Developmental biology?Developmental biology is the branch of science which deals with the study of the process through which an organism such as an animal and a plant grows through and develops with respect to time to more evolved organisms.
Developmental biology includes the biology of regeneration, asexual reproduction of an organism, metamorphosis, and also the growth and differentiation of the stem cells which take place in the adult organisms.
Development of species accomplishes two major objectives which generates cellular diversity as well as the order within each generation, and it also ensures the continuity of life from one generation to the next generation.
Therefore, the correct option is A.
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What are the differences between white blood cells and normal eukaryotic cells?
Answer:
White blood cells (WBCs) are specialized to respond to antigen and produce antibodies as well as undergo phagocytosis in response to toxic stimuli.
WBCs are part of immune system and there are five different kinds with specialized features.
In order to make a cell model, it is best to use a muscle cell and a nerve cell or neuron: there are pronounced structural differences and those are present throughout animal kingdom.
Lower animals ( such as insects, worms etc. ) have different immune system, however, they do have typical neuron and a muscle cell/skin cell (fibroblast). Such cell models are likely to be easy, distinct and bring you good grades without going through much complication and confusions of various organ systems and animal mod
Explanation:
What should be the genotypes of the parent flowers (P generation) if he wants to ensure that all of the flowers in the F1 generation are tall and yellow?
Answer:
TTYY x TTYY
Explanation:
Need quick please thanks
Answer:
the last answer
Explanation:
sorry if its wrong
Answer:
The mouse must be ff.
What is the main idea of this text?
A. Climate change is a complex and unpredictable process involving
feedback loops.
B. Disagreements about climate change have prevented scientists from
finding real solutions to global warming.
C. Wallace Broecker's theory may have been incorrect, but he presented
some worthwhile ideas.
D. Climate change can be completely reversed if carbon dioxide production
is changed.
Answer:
should be b
Explanation:
Answer:
disagreements about climate change have prevented scientific from finding real solutions to global warming
Which statement is NOT true of soils?
Weathered parent material makes up most of the B-horizon.
All of Earth's systems are represented in a soil.
The C-horizon of a soil can contain unweathered rocks.
Organic matter gives the A-horizon in a soil a dark color.
Answer:
b
Explanation:
The statement that is NOT true of soils is: "All of Earth's systems are represented in a soil."
How much soil is important on earth ?Soil is a critical resource on Earth, as it is essential for supporting plant growth and providing a habitat for a wide variety of organisms.
While soils are complex and dynamic systems that interact with many other Earth systems, not all Earth systems are represented in a soil. For example, soils do not directly represent the atmosphere or the hydrosphere, although they interact with both of these systems in important ways.
The other three statements are true of soils:
Weathered parent material makes up most of the B-horizon: The B-horizon is typically composed of weathered rock and mineral fragments that have been transported downward from the A-horizon.
The C-horizon of a soil can contain unweathered rocks: The C-horizon is the deepest layer of a soil and can contain unweathered bedrock or other geological material.
Organic matter gives the A-horizon in a soil a dark color: The A-horizon is the uppermost layer of a soil and is often darker than lower layers due to the presence of organic matter, which can give it a dark brown or black color.
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Body of a female was found in alley behind dumpsters in a major u.S city. No apparent wounds were observed on the body
Answer:
Interesting
??
A biological macromolecule is made up of glycerol and fatty acids. Based on this information, what type of molecule is this? Choose 1 answer: Choose 1 answer: (Choice A) A Nucleic acid (Choice B) B Carbohydrate (Choice C) C Protein (Choice D) D Lipid
Answer:
D. Lipids
Explanation:
A biological molecule that is made up of glycerol and fatty acids is known as Lipid. Thus, the correct option is D.
What are Biological macromolecules?Biological macromolecules may be defined as those large and organic molecules that are important to biophysical processes. It includes carbohydrates, lipids, proteins, and nucleic acids.
Nucleic acids are derived from a pentose sugar, a phosphate group, and a base. Protein is derived from their monomers known as amino acids. Carbohydrates are derived from monosaccharides units such as glucose. It includes carbon, hydrogen, and oxygen.
Triglycerides are a simple form of lipids that are constructed with the help of one molecule of glycerol while three molecules of fatty acids.
Therefore, a biological molecule that is made up of glycerol and fatty acids is known as Lipid. Thus, the correct option is D.
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plants experience _______ gravitropism when their stems move upward.
A. positive
B. negative
Answer:
Negative
Explanation:
Gravitropisms. Phototropism is a response to the stimulus of light, whereas gravitropism (also called geotropism) is a response to the stimulus of gravity . When the stem grows against the force of gravity (upwards), this is known as a negative gravitropism.
Answer:
negative
Explanation:
this is because negative gravitropism is when a plant grows away from gravity (like moving upwards). then, positive gravitropism is when the roots of a plant move grow downwards.
i hope this helps you!
Answer!!!!!!!!!!!!!!!!!!!
Answer:
Energy
Explanation:
For example light is a wave
Answer: Energy
Explanation: Good luck! :D
The two narrow tubes that urine flows through from the kidneys to the bladder are the
kidneys
esophagus
ureters
Answer:
Two ureters.
These narrow tubes carry urine from the kidneys to the bladder. Muscles in the ureter walls continually tighten and relax forcing urine downward, away from the kidneys. If urine backs up, or is allowed to stand still, a kidney infection can develop.
There is a dominant trait that affects the short arm of chromosome #4 known as Huntington's disease. A woman that is heterozygous for Huntington's disease and a normal, unaffected male have a female child. What is the probability that this child may be affected by the disease?
Answer: 50%
Because there are different systems in the body to prevent diseases, however chromosome diseases are usually hereditary so there is about a 50% chance that the child may be affected by this disease.
Huntington's disease is a dominant chromosomal disorder, when a woman who is heterozygous marries a man who is normal, then the probability for the child to be affected is 50%.
What is Huntington's disease?Huntington's disease is a rare genetic disease which causes the progressive breakdown of neurons present in the brain. Huntington's disease has a wide impact on a person's functional abilities and results in movement, cognitive thinking and psychiatric disorders.
When a woman who is heterozygous (Hh) for Huntington's disease marries a man who is normal (hh) for the disease, the probability of the offspring to be affected with the disease can be calculated with the help of Punnett square. And, it will be 50%.
The Punnett square is attached with the answer.
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I
5. The diagram below shows two kinds of cells.
Font
Arial
Regular
B
Character
A biologist wants to classify protein secretions into groups based on the principal function of the protein.
Which cell would the biologist select to study and why?
SC.912.L. 14.3
Alignment
A. The cell on the left, because it has genetic information organized into chromosomes.
B
B. The cell on the left, because it has organelles that secrete proteins.
C. The cell on the right, because it has free proteins throughout its cytoplasm.
D. The cell on the right, because it has a flagellum that enables movement.
Spaci
10
Bulle
Answer:
c
Explanation:
lists levels of organization in the universe from simplest to most complex
Answer:
organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Explanation:
Fat under the skin
answer is insulation
Answer:
huh is there any question
Explanation:
If the basement membrane was damaged, do you think new epithelial tissue could grow?
Answer: Key words: tissue repair, regeneration, scarring, wound healing, growth factors ... Tissue repair may restore some of the original structures of the damaged tissue ... Initially the new blood vessels are critical in the transport of nutrients and cells to ... the basement membrane is composed largely of nonfibrillar collagen
Explanation:
if an organism is a prokaryote, unicellular and can survive in harsh conditions, in which doiman would it be classified
Answer:
The correct answer is - Archaea.
Explanation:
Archaea is one of the three domains of life other than bacteria and eukarya. Archaea are prokaryotic organisms that are unicellular and present in very extreme conditions like salt environments or extreme heat.
Archaea used to be placed with bacteria but due to some closeness with the characteristic of eukarya as well as bacteria, it is placed as a separate domain. It lacks nuclei and has a cell wall in its cell.
Please helppp!!! will give the brainliest it's probably easy
If a SARS-CoV2 virus were to mutate and become and become better at attaching to respiratory cells, how would natural selection lead to this mutant virus becoming the dominant virus type? Use the four steps of natural selection in your response: overpopulation, genetic variation, competition, differential reproductio.
Answer:
Mutations leading to the better attachement of virus to the host cell would allow the virus to spread the infection and leave more progeny. The reproductive fitness of mutant viruses would allow the mutation to spread.
Explanation:
1. The organisms with same resource requirement compete with each other. Viruses are not living things but once inside the host cell, they behave like living things. Rapid multiplication of virus overpopulate the host cells.
2. Genetic variations are added to the viral progeny by random errors during replication of the viral genome. These random variations may impart beneficial trait, harmful feature or remain neutral. If a random mutation in the SARS-CoV2 virus allows it to adhere better to the cells of the respiratory system, the virus would be better able to infect these cells to spread the infection. Once inside the host cells, the mutant virus would leave more progeny. On the other hand, the wild type virus that lack this mutation would have lesser chances of entering the host cells and may or may not replicate.
3. The progeny of the mutant virus would compete better with the non mutant ones due to the presence of same mutation.
4. Differential reproduction and more progeny of the mutant virus would spread the mutation among the virus.
Which animal has a bilaterally symmetrical body plan?
A jellyfish.
A lobster.
Coral.
The thing that makes a wave a wave is that it___________from one place to another.
A. Transport energy
B. Transports the medium
C. Travels with a vacuum
D. Carries Solids
Answer:
A?
Explanation:
All waves carry energy from one location to another, but they do not move any physical objects. The energy is transferred from one particle to the next, which then oscillates as well. Thus, option A is correct.
What is the energy transport property of wave?The vibration of particles, which transfers energy in waves, causes the particles to travel perpendicular to the wave's horizontal movement. As the particles transition from rest to movement and back to rest, energy is changed between potential (stored) and kinetic (moving) energy.
However, waves do not move mass. By colliding with one another and exchanging energy, the particles “participate” in the wave. Because of this, energy can be transferred even when the particles' average positions remain unchanged.
Therefore, The thing that makes a wave is that it transport energy from one place to another.
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Why is animal testing bad?
Answer:
Explanation:
Animal experiments may result in clinical trials of biologically faulty or even harmful substances, thereby exposing patients to unnecessary risk and wasting scarce research resources. Animal toxicity studies are poor predictors of toxic effects of drugs in humans.
Answer:
Experimenting with animals is not justified with anything, they practically play with beings that have life, emotions and that feel pain like all living beings.
Advances the experiments that are done on them, are not used, or the purpose is simply lost, as well as their life.