The tough and rigid layer that surrounds plant cells, as well as some algal and bacterial cells, is called the cell wall. Therefore, the correct statement is option A.
What are the functions of cell wall?The cell wall provides mechanical support to the cell, thereby, protecting it from damage caused by external factors. The cell wall consists of complex carbohydrates, such as cellulose, lignin, etc.
The cell membrane is selectively permeable, and the cell wall is porous allowing the passage of some molecules. The cell wall also helps in cell communication and signaling.
The cell wall determines the shape of the cell and helps in the regulation of growth and development. The thickness and composition of the cell wall change with respect to different environmental conditions and helps in the survival and function of many types of cells.
Therefore, the tough and rigid layer that surrounds plant cells is called the cell wall.
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Which organism in this food web would you expect to have the greatest amount of biomass if a biomass pyramid was created for this ecosystem?
The organisms at the base of the pyramid tend to have a greater biomass than those at the top of the pyramid.
What is a food web?The term foodweb is a term that can be used to describe all the possible feeding relationships in the ecosysetm. We knwo that energy is lost further along in the web.
Hence, the organisms at the base of the pyramid tend to have a greater biomass than those at the top of the pyramid.
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4. historical Method
a highly developed society
5. anthropology
a document produced some time after the historical event
6. primary Source
a document that was produced during the same time period as the historical event
7. secondary Source
collecting, classifying, analyzing, and interpreting data
Answer:
Anthropology is the study of humans; Culture is all the knowledge and values shared by society; Society is a group of people with common practices, activities, and interests; Primary source is a document produced during the same time period as the historical event; Secondary Source is a document produced after the historical event; Civilization is a highly developed society; Historical Method is collecting, classifying, analyzing, and interpreting data
Explanation:
The wrasse, a small marine fish, periodically cleans harmful parasites from the
mouth and body of the moray eel. The moray, in turn, protects the wrasse from
larger predators and provides it with a constant supply of food. This is an
example of the type of relationship known as
This is an example of the type of relationship known as mutualism.
Feeding relationship between organismsThere exists various types of feeding relationships among living organisms which include:
competition, predation, commensalism, mutualism and parasitism.Mutualism is the type of feeding relationship whereby two organisms of different species work together in such a way that both benefits from each other.
Thus, the wrasse removes harmful parasites from the moray eel while the moray eel in turn protects the wrasse from predators.
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what test can determine if a person has hiv or tell how much a virus is present in the blood
Answer:
Yes, tests like urine and blood tests.
Explanation:
Make me brainiest.
The result of the following cross indicates that the genotype of the female parent is _____.
Answer:
The result of the following cross indicates that the genotype of the female parent is- bb
People use salt to remove the leech from the body parts during monsoon. The above phenomenon explains
A. De-plasmolysis
B. Plasmolysis
C. Flaccidity
D. Turgidity
How do viruses
cause disease?
A. takes over cell
and hacks the cells
machinery to make
more viruses
B. is engulfed by cell
and reproduces the
cell with its DNA
C. reproduces its
cell in the blood and
outnumbers the
healthy cells
D. engulfs
organelles and
becomes a cell that
can reproduce on its
own
Answer:
A. takes over cell and hacks the cells machinery to make more viruses.
Explanation:
What percentage of household trash can be recycled?.
Answer:The EPA estimates that 75% of the American waste stream is recyclable, but we only recycle about 30% of it.
Explanation:edg2022
Which is a correct definition of carrying capacity?
A
the largest number of different species that a particular habitat can support indefinitely with the resources available
B
the smallest number of different species that a particular habitat can support indefinitely with the resources available
C
the largest number of individuals of a certain species that a particular habitat can support indefinitely with the resources available
D
the smallest number of individuals of a certain species that a particular habitat can support indefinitely with the resources available
Answer:
C
Explanation:
the largest number of individuals of a certain species that a particular habitat can support indefinitely with the resources available
During the end Permian mass extinction, the die-offs were so extensive, __________ or more of animal species went extinct.
During the Permian mass extinction more than 80% of the global animal species went extinct.
What was the Permian mass extinction?This was one of the many mass extinction events that occurred during the Earth's history. Mass extinction events are global die-off's of animal species. Throughout history, these have been caused by many factors, but often include a sharp change in global weather conditions. The Permian mass extinction killed of 95% of all land species and 70% of all marine life, averaging around 80% in total species.
Therefore, we can confirm that during the Permian mass extinction more than 80% of the global animal species went extinct.
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During what geologic epoch did the last glacial advance occur?.
Answer:
Pleistocene epoch
Explanation:
What is the link between nutrition and disease?
Answer:
Nutrition and infectious diseases are related to each other in some aspects. First, nutrition affects the development of human body immune system. Moreover, nutrition can influence emerge of infectious diseases (e.g., gastrointestinal infections), food poisoning, intestinal diseases, and systemic infectious diseases
What will the overall charge of an atom be if it has more protons than electrons?
A:neutrally charged
B:negatively charged
C:ionically charged
D:positively charged
Answer:
D
Explanation:
A: Neutrally charged atoms have the same number of protons and electrons.
B: Negatively charged atoms have more electrons than protons. These are also called anions.
C: ironically charged is a molecule that has a charge so a cation or an anion. This option isn't correct becuase it's not specific enough for the question. An ion can be positively charged (cation) or negatively charged (anion).
Explain why the coyote is considered a limiting
factor in the Adirondack Mountains.
Answer:
The coyote eats the beaver, deer, and moose so the coyote limits the number of prey.
are butterflys made up of one or more cells
Answer:
There made up of multiple cells
Explanation:
Answer:
the monarch butterfly has eukaryotic cells.
Explanation:
Sea otters are found primarily off the coast of California. They are one of the main predators of sea
urchins, Sea urchins feed on the roots of kelp beds, effectively killing large areas of kelp. Kelp beds
are important because they provide a safe location for several species of fish to spawn and hatch
their offspring. Data suggests that sea otters are a keystone species in their ecosystem.
What will most likely happen to this ecosystem if sea otters are permanently removed?
ОА.
OB.
Other species will evolve the ability to eat sea urchins, keeping the urchin population
under control.
The sea urchin population will rapidly increase, resulting in less kelp and a decrease
in biodiversity.
Sea urchins will assume the role of keystone species, allowing the ecosystem to remain
balanced,
OC.
Fish that reproduce in kelp beds will adapt to living in open water, becoming the primary
producers in the area.
Answer:B The sea urchin population will rapidly increase, resulting in less kelp and a decrease
Explanation:I researched it .
Which study type of natural selection did grants observe when studying the beak size of galápagos finches
Grants study the type of natural selection on break size of Galapagos finches.
Grant study on Galapagos?Peter Grant and Rosemary Grant studied Darwin's finches. They observed evolution by natural selection on Galapagos finches which occured during drought . Birds with bigger beaks tend to survived and reproduced because they adapt well and can eat different types of seeds at all sizes of seeds, whereas small-beaked birds could only eat small seeds. while birds with smaller beaks could not survive well.
Therefore, Grants study the type of natural selection on break size of Galapagos finches.
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Humans convert ammonia to the water soluble compound urea. True O False
Bacterial resistance to common antibiotics has been occurring over the last fifty years. Many antibiotics, like ampicillin, were effective in treating many bacterial infections but are not becoming significantly less effective. In order for a medical doctor to be able to explain to the patient why the same antibiotic can no longer be used to treat a similar infection, the doctor attempts to explain natural selection to the patient. Evaluate which of these components would be appropriate to include in the explanation to the patient and select ALL that apply.
A)The bacterial resistance includes all antibiotics.
B)The bacterial resistance to the antibiotic is genetic in origin.
C)The bacterial resistance to the antibiotic can be passed on to offspring.
D)The bacterial resistance to the antibiotic is because of an insufficient dose of antibiotic.
E)The bacterial resistance is the result of differential survival of a population of bacteria when exposed to the antibiotic.
Answer:
B, C, & E
Explanation:
just took the USATestprep
The ________ nervous system is composed of the brain and spinal cord.
Answer:
The central nervous system is composed of the brain and spinal cord.
Which of these shows the levels of organization in the correct order from smallest to largest?
A. cells, organs, tissues, and organisms
B. cells, tissues, organs, and organ systems
C. cells, tissues, organisms, and organs
D. tissues, organs, cells, and organ systems
Answer:
B
Explanation:
cell is the first organization level
tissue is the second level
organ is the third level
organ systam is the fourth level
organsim is the last organization level
Answer:
B. cells, tissues, organs, and organ systems
Explanation:
Different forms of a gene that occur at the same locus
Answer:
The answer is ALLELES.
Explanation:
Different forms of a gene that occur at the same locus is ALLELES.
How is it that some people have different DNA than others? What exactly about what the DNA is different?
if yall dont know a answer and give the wrong answer, what are you going to to?
A) Still answer it
B) try to solve the problem on paper
C) not answer it
D) spam random letters
Answer:
try to solve it on a paper
Which does NOT cause an increase in carbon dioxide in the atmosphere 2b
O burning fossil fuels
O deforestation
O driving more cars
O using solar energy to heat a home
DO NOT ANSWER IF YOU DONT KNOW THE ANSWER THANKS!
Answer:
O deforestation
Ex: an increase in the carbon dioxide content in the atmosphere it will not cause the abundance of the desert plants right
Choose the stage that best matches the description given.
Ants, mites, and beetles frequent the body in warmer climates.
After day 50
Days 26-43
Days 3-17
• Day
• Day 2
• Days 18-25
Forensic entomology identifies the fauna on a dead body to make predictions about the death. C) ants, mites, and beetles frequent the body 3-17 days after death.
What is forensic entomology?Forensic entomology is the forensic branch that studies the cadaveric fauna associated with a dead body to make scientific conjectures.
Cadaveric fauna usually includes different forms of invertebrate species and their stages of development. There is a predictable sequence in which different species arrive at the dead body and inhabits it, and this sequence depends on the time the individual has been dead and the decomposition state of the body.
The species inhabiting the body and their developmental stage can be used as significant data to estimate the time of death, the region, and the circumstances under which the individual died.
Stages of decomposition depend on the region, but we can make this generalization,
1-3 days ⇒ adult flies and eggs, and a few larvae
3-5 days ⇒ bacteria and other microorganisms act. The decomposing body produces gasses that inflate the carcass. Larvae penetrate the body, release the gasses, and the carcass collapses.
5-15 days ⇒ Maggots, flies, ants, and beetles have already reached the dead body.
15-25 days ⇒ Most flesh is already consumed, and the body is in the advanced stage of decay. Although the number of invertebrates is low, the diversity of species is great. There are carpet beetles, ants, skipper flies, and mites.
25-50 days ⇒ Almost dry body with no flesh. Some arthropods are still feeding on it.
>50 days ⇒ Bones
Note: Remember that these are approximations and might vary according to the region and environmental conditions, such as temperature, precipitation, humidity, etcetera.
According to this information, we can say that ants, mites, and beetles frequent the body in warmer climates between 3 and 17 days. Option C.
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The human body consists of four main types of tissue. These tissues are described in the chart below.
Answer:
B
Explanation:
The four main cell groups in the body are different shapes and sizes to fit the unique job they are made to do
ex. nerve cells are smaller and longer compared to epithelial cells
Cactus finches have long, pointed beaks. Say the only source of food for Cactus finches is cactus flowers. If a plant disease killed a large portion of the cacti on the Galapagos islands, how would the population of Cactus finches change
The population of the Cactus finches suddenly experiences a decline when a large portion of the cacti on the Galapagos islands was killed by a disease.
What do you mean by Population?A population may be defined as the number of individuals of the same species living in a particular area at a given time.
Cactus finches only depend on the cactus flower as a food source, and if these flowers were killed by a disease, the cactus finches do not get enough food to survive and reproduce, hence their population may fall rapidly.
Therefore, the population of the Cactus finches suddenly experiences a decline when a large portion of the cacti on the Galapagos islands was killed by a disease.
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Answer:
For the Biological Evolution Unit Test, the answer is The population of Cactus finches would decrease because there would be more competition for food.
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What kind of traits are selected for? Why are some traits selected for while others are not?
Which of the following abiotic factors are used to
define terrestrial biomes?
Select one:
a. vegetation only
b. rainfall and temperature
c. altitude and rainfall
d. altitude and temperature
e. altitude and vegetation
Answer:
I believe the answer is B. Rainfall and tempature.
Explanation:
They are both main factors or terrestrial biomes.