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14.5.2 Test (CST): Ecology
Question 12 of 25
The graph here shows a population of rabbits in an ecosystem that the
rabbits are not allowed to enter or leave.
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Population size
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Time
Which statement best describes the population at point B?
O A. The death rate is high.
O B. The carrying capacity has been reached.
Thala handia
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The correct answer is C. There is abundant food and space.
Explanation
The graph shows the size of the rabbit population over time in an ascending curve in which point b is in the middle of the ascending line, so it can be inferred that at this stage the feeding conditions and space are abundant, allowing the population to continue to grow in this place. So the correct answer is C.
Organisms are either eukaryotes or prokaryotes. Prokaryotes are further classified into the domains Archaea or Bacteria, while all eukaryotes are in the domain Eukarya.
a. True
b. False
Answer:
This is true
Explanation:
Which of the following lists correctly presents levels of organization from most complex to simplest?
O biosphere, community, organism, organ system
O cell, organelle, atom, molecule
O macromolecule, population, community, ecosystem
Answer:
O macromolecule, population, community, ecosystem
Explanation:
Macromolecules are very large molecules composed of atoms, such as complex carbohydrates, fats and proteins (for example, fats are macromolecules mainly composed of C, H, and O atoms). Macromolecules in turn associate to form cellular structures (eg. organelles, cytoskeleton, etc), which subsequently combine to form cells. Individuals are made up of one or more cells (i.e., unicellular and multicellular organisms, respectively). In the next level, populations are groups of individuals of the same species that live within a given area; whereas communities are groups of populations that live in a given area and interact with one another. Finally, an ecosystem can be defined as a group of populations (i.e., a community) and the abiotic factors (i.e., nonliving parts) of their environment that support them (e.g., water, light, radiation, temperature, etc).
The correct option is macromolecule, population, community, ecosystem
The following information should be considered:
Macromolecules are very large molecules that comprise of atoms like complex carbohydrates, fats and proteins.Macromolecules form cellular structures that subsequently combine to form cells. In the next level, populations are groups of individuals of the same species that live within a given area; whereas communities are groups of populations that live in a given area and interact with one another.Finally, an ecosystem can be defined as a group of populations (i.e., a community) and the abiotic factors (i.e., nonliving parts) of their environment that support them (e.g., water, light)Learn more: brainly.com/question/17429689
The relative impermeability of membranes to water soluble molecules is a result of the ____.
Because the membrane is semi-permeable
or
The membrane selectively allows molecules that passes(smaller molecules) the pores of the membrane to pass through while those which have larger molecules does not pass through.
A therapist examining the roles, rules, expectations, power hierarchy, and boundaries within a
family is focused on which of the following areas of assessment?
Answer:
This question lacks options, options are:
A) family affect
B) family strengths
C) family process
D) family organization.
The correct answer is D.
Explanation:
The family is a system that is constituted by a network of relationships and made up of subsystems where each member evolves and develops through different stages, undergoing adaptation changes where the norms, rules, limits and hierarchies that work are essential in the family environment. Family therapy is understood to be that modality of therapy focused on the family as an object of intervention, its objective is to achieve the change of negative interaction patterns between the members of a family. Family organization refers to the interaction between all its members who are part of the same institution united by emotional ties. The organization describes the totality of the existing relationships between the people that make up the system, then the family organization refers to the functional demands, distribution of rules and transactional guidelines that constitute the ways of interacting of each individual within the family. The transactional guidelines are those that normalize the behavior of each member and are preserved by two systems of coercion; the first established by universal norms in turn existing roles and hierarchies; the second is the characteristic of each member involving its interests and expectations.
The diagram below depicts the Linnaean classification system and a
cladogram. How do the two methods of classification compare?
A. Extinct organisms have a place in the Linnaean system, but not in
a cladogram
B. The Linnaean system attempts to show how organisms ans
related, but a cladogram does not.
C. The Linnaean system establishes a scientific naming system, but
a cladogram does not
D. The Linnaean system presents the probable order of evolution of a
set of organisms, but a cladogram does not
Answer:
C. The Linnaean system establishes a scientific naming system, but a cladogram does not.
Explanation:
The main difference between Linnaean classification system and a cladogram is that the Linnaean system establishes a scientific naming system, but a cladogram does not. Cladogram refers to a branching diagram which shows the cladistic relationship between different species while on the other hand, the Linnaean system of classification consists of taxa that is range from the kingdom to the species.
Chromosomal sex refers to the physical expression of male or female anatomical structures based on the presence or absence of specific hormones that are secreted after the seventh week of prenatal development.
Question 11 options:
True
False
Answer:
I think its true
Explanation:
The chromosomal sex of the embryo is established at fertilization. However, 6 weeks elapse in humans before the first signs of sex differentiation are noticed. Sex differentiation involves a series of events whereby the sexually indifferent gonads and genitalia progressively acquire male or female characteristics.
When conducting a chemotaxis assay to test if the experimental RNAi treatment affected C. elegans, what is the purpose of using sodium azide on the chemotaxis assay plates
Answer:
It is a metabolic inhibitors.
Explanation:
The purpose of using sodium azide on the chemotaxis assay plates causes stress protein expression and creates the ability to tolerate high temperature. Sodium azide inhibits oxidative phosphorylation through inhibition of cytochrome oxidase that result in a rapid depletion of ATP. Exposure to the metabolic inhibitor i.e. sodium azide causes stress protein expression and tolerance to high temperatures in the nematode Caenorhabditis elegans.
In a case-control study, a researcher found no association between exposure to A and disease B. Later she found out that there was a misclassification when measuring exposure to A, in both cases and controls. What is a potential explanation for the results (no association) of this case-control study?
a. Differential misclassification
b. Confounding
c. Selection bias
d. Effect-modification
e. Nondifferential misclassification
Answer:
e
Explanation:
When misclassification occurs among the probability of individuals being misclassified is equal across all groups in the study it is referred as non-differential misclassification.
What is misclassification?An error that occurs during a research at any stage is known as misclassification.
It can be differential misclassification of non-differential misclassification.
Non-differential misclassification takes place in case when the probability of misclassification is equal across all groups in the study.
Differential misclassification occur in a case when the probability of misclassification differs between particular groups in a study .
In the given case exposure A is misclassified in both cases. So, it can be taken as non-differential misclassification.
Thus, the correct option is e.
For more information regarding misclassification, visit:
https://brainly.com/question/15550192
An athlete is training really hard and becomes dizzy and feels ill and weak. What could be the cause of this weakness, in relation to cellular respiration?
Answer:
Dehydration.
Explanation:
Dehydration is the cause of this weakness, in relation to cellular respiration because in cellular respiration water is produces when the glucose molecules are broken down for the release of energy. In this process, our body temperature increases so our body removes heat from the body with the use of water which leads to dehydration and the athlete feels hard and becomes dizzy and feels ill and weak.
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Answer:
can u write In english please
Explanation:
please
The fundamental source of Energy for all biological System is
Answer:
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.
What are the effector organs for the enteric nervous system?
Answer:
The enteric nervous system is composed of thousands of small ganglia that lie within the walls of the esophagus, stomach, small and large intestines, pancreas, gallbladder and biliary tree.
When flies having a gray body and normal wings were crossed with flies having a black body and vestigial wings, the F2 generation showed a phenotypic ratio of 3:1, and not 9:3:3:1.
Answer:
This proves Gregor Medel's hypothesis.
Explanation:
When Gregor Mendel crossed two pure-breed flowers, he noticed that the offspring in the F1 generation exhibited all dominant traits. However, when he crossed the offspring in the F1 generation, he noticed that the recessive trait reappeared in a 3:1 ratio (one reccesive). This is because for each trait, one allele from each parent is passed on. Also, the alleles are passed independently of one another, meaning that one allele passed for one trait won't affect the chance of another.
Black coffee has a pH around 5; hand soap has a pH of 10. How many times more acidic is coffee relative
to hand soap?
Answer:
[tex]\boxed {\boxed {\sf 10^5 \ or \ 100,000 \ times \ more \ acidic}}[/tex]
Explanation:
The pH scale stands for the power or potential of hydrogen. It measures how acidic or basic a solution based on the concentration of hydrogen ions and a scale from 1 to 14.
This scale is unique because it is logarithmic. So, every time the pH changes by 1 on the scale, the actual concentration of the solution increases or decreases by a tenfold.
So, a solution with a pH of 7 is ten times more acidic than a solution with a pH of 8. This can be translated to:
[tex]10^ {difference \ in \ pH}[/tex]
The black coffee has a pH of 5 and the hand soap has a pH of 10. We want to find how many times more acidic coffee is, so we subtract 5 from 10 and get 5. The difference in pH is 5.
[tex]10^5=100,000[/tex]
Coffee is 10⁵ or 100,000 times more acidic than hand soap.
Why do doctors check for swollen lymph nodes?
A. Bacteria and viruses mostly attack the lymph nodes.
B. Memory cells are stored in the lymph nodes.
C. It is impossible to immunize the lymph nodes.
D. Lymph nodes are the site of white blood cell production.
Answer:
A
Explanation:
Because Bacteria and viruses mostly attack the lymph nodes so doctors check it....
hi,I was feeling so bored so I give this question What is climate change and what r the causes of climate change?
Answer:
Climate change is the global phenomenon of climate transformation characterized by the changes in the usual climate of the planet (regarding temperature, precipitation, and wind) that are especially caused by human activities
Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels, cutting down forests and farming livestock. This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming. Humanity’s increased use of fossil fuels – such as coal, oil and gas to generate electricity, run cars and other forms of transport, and power manufacturing and industry
Deforestation – because living trees absorb and store carbon dioxide
Increasingly intensive agriculture – which emits greenhouse gases like methane and nitrous oxide
What is the answer with exampltion please
the percentage of offspring is 75%
Explanation:
3/4 ×100=75%
anu ano ang katangian ng:
monophonic texture homophomial texture polyphonic texture
Explanation:
anu ano ang katangian ng:
monophonic texture homophomial texture polyphonic texture
The orbit radius of Uranus is 19.22 AU. What is this distance in kilometers? ( one au is about 150 million kilometers.)
Answer:
2,883,000,000km
Explanation:
19.22*150,000,000km=2,883,000,000km
Câu 4: Nghiên cứu về lạm phát nằm trong đối tượng của…
a. kinh tế học vi mô.
b. kinh tế học vĩ mô.
c. kinh tế học thực chứng.
d. kinh tế học chuẩn tắc.
Answer:
Explanation:
B. Kinh tế học vĩ mô
Endocrine system secretes hormones that
regulate the activity of reproductive system, this
is an example for: -
A. Organ systems
B. Tissue
C. Integration of organ
systems
D. Cell organization
PLEASE HELP , WILL MARK AS BRAINLIEST!!!
Information collected directly with the sense is a (n)
A. inference
B. hypothesis
C. inquiry
D. observation
Answer:
observation because you are using senses such as sight and smell to come to a logical conclusion about something.
which best explain why the sun maintains its size and shape
Whats is castration?
Answer:
Castration is any action, surgical, chemical, or otherwise, by which an individual loses use of the testicles: the male gonad.What does it mean that a hypothesis must be ‘falsifiable’ in order to be valid?
\
Answer:
A hypothesis must be able to be proved wrong for it to be a useable hypothesis.
Explanation:
This is because if one can not disprove a hypothesis no experiment can be preformed to test the truthfulness of the statement. this does not mean that the question is not interesting or not worth asking. For example "There is a god" is an example of a hypothesis which is not falsifiable; whether or not this statement is true is still valuable information but it is not possible to answer using the tools of science.
Answer:
If an experimental observation can be made that disproves a hypothesis or model, it is said to be falsifiable. That is, one of the possible outcomes of the planned experiment must be a result that would contradict the hypothesis if achieved..
OAmalOHopeO
I was born on May 13TH, am i on the Taurus-Gemini cusp?
A small quantity of weakened germs that cause the production of antibodies in the body against the specific disease
Answer:
Antigen or antibody?
Explanation:
In human beings, the paternal chromosome determines the sex of the child in this way A.X
B.Y C.Z D.O
