Answer:
B energy
Explanation:
because I just know D.
The energy flows through ecosystems in one direction. so the correct option is B. Firstly the energy flows from the sun to autotrophs, or producers. Then it further flows from producers to consumers. Energy never flows backward from consumers to producers.
What is ecosystem?An ecosystem is refers to as a geographic area in which plants, animals, and other organisms, as well as weather and landscapes, work closely to form a bubble of life.
On average only about 10% of energy stored as biomass in a trophic level and is passed from one level to the next. This is called as the 10 percent rule and it limits the number of trophic levels an ecosystem can support.
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Gregor Mendel performs simple experiments by crossing pea plants and he discovered that traits can be ______________ or _________________
Traits that are always present are called the _________________ which means to have most control or influence while traits that fade away are called ___________________
Traits are inherited from the parents which are found in the genetic material located inside the genes within the __________ in the nucleus of every cell in the body
_____________ is how a traits expresses itself while ___________ is a combination of allele inherited from the parents
___________ is a segment of DNA that gives instruction for making protein that produce certain characteristics
____ are different versions of the same genes that produce different traits. Each gene has 2 versions, each version is called an _______________
Twins have the same gene but ______ can affect their phenotype
Answer:
1-dominant
2-recessive
3-dominant
4-recessive
5-chromosome
6-phenotype
7-genotype
8-gene
9-allele
10-allele
11-genotype
Explanation:
all the blanks are filled in given sequence. thanks
Question 1
Which of the following statements about the resting membrane potential is TRUE?
Multiple choice question.
A)
The exterior of the cell has a net positive charge and the interior is neutral.
B)
The exterior of the cell has a net positive charge and the interior has a net negative charge.
C)
The exterior of the cell has a net negative charge and the interior is neutral.
D)
The exterior of the cell is neutral and the interior has a net negative charge.
E)
The exterior of the cell has a net negative charge and the interior has a net positive charge.
Answer:
B)
The exterior of the cell has a net positive charge and the interior has a net negative charge.
Explanation:
The statement about the resting membrane potential 'the exterior of the cell has a net positive charge and the interior has a net negative charge' is TRUE (Option B).
The resting potential refers to the electrical potential charges produced by the separation of opposite charges across biological membranes.At the resting potential, a cell has a negative charge due to the accumulation of more sodium (Na+) ions outside the cell than potassium (K+) in the interior of the cell.For example, a neuron is 70 millivolts more negative than the outside medium at its resting potential.In conclusion, the statement about the resting membrane potential 'the exterior of the cell has a net positive charge and the interior has a net negative charge' is TRUE (Option B).
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Where is the Kuiper Belt located?
OA.
Between Jupiter and Saturn
B.
Between Mars and Earth
OC.
Beyond Neptune
OD.
Beyond Pluto
Which of the following correctly identifies the most productive layer of a soil profile?
A. subsoil, between topsoil and parent material
B. parent material, just above bedrock
C. topsoil, just below undecomposed organic matter
D. undecomposed organic matter, at the very top
Answer:
Topsoil
Explanation:
. topsoil, just below undecomposed organic matter
9. a) List four things that form or begin during the first trimester of pregnancy. (1 point)
Marking brainiest!
Answer:
The baby’s heart, spinal cord, skin, and red blood cells all begin to form during the first trimester of pregnancy.
Explanation:
Hope this helps! Have a nice day :)
how do government subsidies contribute to inefficient use of water?
Answer:
They dont lOlololoLOlololOl
Explanation:
quizleet Using the information in the introduction on mutations and your knowledge of proteins, develop a hypothesis to explain how the changes in the MC1R protein amino acid sequence might affect its function.
Answer:
Dark colour occurs.
Explanation:
The amino acid changes in the MC1R protein may change the structure and function of the protein because the amino acids are the building blocks of proteins. This change in amino acid leads to increased production of eumelanin, which results in the dark color of the protein. So we can say that change in the amino acids leads to the change in the structure and function of MC1R protein.
6. In a population of angiosperms in Hardy-Weinberg equilibrium, the allele, C, conferring red flowers is completely dominant to the allele, c, causing white flowers. If allele C is at frequency 0.7 in the population, what is the expected frequency of red flowered plants
Answer:
The correct answer is - 0.91.
Explanation:
Given that C is dominant over c with an allelic frequency of 0.7. The sum of the frequency of dominant alleles and the frequency of heterozygous alleles in this H-W population of angiosperm will be the expected frequency of red-flowered plants.
The frequency of C = 0.7
(p² = dominant allele frequency)
Then, the frequency of dominant genotype CC would be = 0.7×0.7 (p² = dominant allele frequency)
As we know that P + q = 1
then q = 1 - p
q (frequency of recessive allele) - 1 - 0.7
q = 0.3
Then frequency of heterozygous genotype Cc= 2pq
= 2×0.7×0.3
= 0.42
The frequency of red flowers = freq of CC + freq of Cc
= 0.49 + 0.42
= 0.91
Given that C is dominant over c with the frequency of 0.7
The sum of the frequency of dominant allele and heterozygous alleles in this H-W population of angiosperms expected frequency of red-flowered plants.
frequency of C = 0.7
[tex]p^{2} =dominant allele[/tex]
CC= 0.7 × 0.7
[tex]p+q =1\\q= 1- p\\= -1-0.7\\=0.3\\[/tex]
Then frequency of genoype = Cc= 2pq
= 2×0.7×0.3
= 0.42
[tex]frequency of red flower = freq of CC + freq of Cc[/tex]
= 0.49 + 0.42
= 0.91.
What is Hardy-Weinberg equilibrium?It is a principle that states genetic variation in a population will remain constant from one generation to the next generation in the absence of disturbing factors.
Hence concluded that the frequency of red-flowered plants = 0.91
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TMV Assembly Each of these statements is an experimental observation concerning the reassembly of tobacco mosaic virus (TMV) virions from TMV RNA and coat protein subunits. In each case, carefully state a reasonable conclusion that can be drawn from the experimental finding.
a. When RNA from a specific strain of TMV is mixed with coat protein from the same strain, infectious virions are formed.
b. When RNA from strain A of TMV is mixed with coat protein from strain B, the reassembled virions are infectious, giving rise to strain A virus particles in the infected tobacco cells.
c. Isolated coat protein monomers can polymerize into a virus-like helix in the absence of RNA.
d. In infected plant cells, the TMV virions that form contain only TMV RNA and never any of the various kinds of cellular RNAs present in the host cell.
e. Regardless of the ratio of RNA to coat protein in the starting mixture, the reassembled virions always contain RNA and coat protein in the ratio of three nucleotides of RNA per coat protein monomer.
Answer:
Explanation:
tobacco mossaic virus is aa RNA containing virus enclosed in aaprotein coat. in above sttaed experiment when TMV cause infection in tobacco plant is leaves get infected due to replication of virus in its cells. RNA is first converted into complementary DNA and form a double stranded nucliec acid structure. it syntheaize its protein to make new coats and to wrap the newly synthesized RNA, and make a completely infected new virus which we called virion. in any case the number of coats are equal to RNA so that to prepare new viruse. n
Rudy is analyzing a list of statements about structural organization within
the human body. The chart shows the list of statements.
1
2
3
Human Body Structural Organization
The human body has more systems than cells
The human body has more cols than systems
Cabs are made up of different tissues.
Organs are made up of cells and tissues
Systems are more complex than organs
4
S
Which statements are true?
1 and 2
2 and 3
2.4 and 5
3.4 and 5
Answer: 2, 4 and 5.
Explanation:
Human system are made of various organs which in turn are made up of various tissues which in turn are made up of various cells. Cells are therefore much more numerous than systems.
As already mentioned, organs are made up of tissues which are made up of cells so statement 4 is right.
As systems are made up of various organs working together, they are more complex than the individual organs. For instance, the Muscular system is more complex than the triceps or bicep muscles.
maslows theory of self actualization
Answer: OK Maslow's quote refers to self-actualization, which is the highest level or stage in his model of human motivation: the 'Hierarchy of Needs'. According to the hierarchy of needs, self-actualization represents the highest-order motivations, whiSelf-actualization, in psychology, a concept regarding the process by which an individual reaches his or her full potential. ... Similar to Goldstein, Maslow saw self-actualization as the fulfillment of one's greatest potential.ch drive us to realize our true potential and achieve our 'ideal self'.
hope this helps have a nice day❤️
Explanation:
What is the result of adding these two equations?
−
5
x
−
9
y
=
3
5
x
−
9
y
=
−
2
−5x−9y
5x−9y
=3
=−2
Answer:
[tex] - 18y = 1[/tex]
y=-1/18
How many stops can you potentially make on your trip? Why?
Give two
reasons why cells divide.
Answer:
Cells divide so living things can grow. When organisms grow, it isn't because cells are getting larger. Organisms grow because cells are dividing to produce more and more cells.
Explanation:
Growth. Replacing damage or dead cells.
The world is continuing to expand economically, and consumers are demanding for products. Which of the following is the most direct negative impact caused by the enormous use of paper products around the world?
Answer: Tree Good
Explanation: No more Tre ekuiL no mor
are
Obliquity refers to the changes to the direction of Earth's tilt
A
True
B
False
In humans, tongue rolling is dominant over non-rolling. A man who can roll his tongue marries a woman who cannot. They have 8 children, of which 6 can roll their tongue. What is the genotype of these 6 children?
A. Rr
B. rr
C. RR
D. 6R
Answer:
A or C But I belive it’s A
Explanation:
Albinism is a somatic recessive condition resulting from the inability to produce the dark pigment melanin in skin and hair. A man and woman with normal skin pigmentation have two children. The man has one albino parent; the woman has parents with normal pigmentation, but an albino brother. a. What is the probability that at least one of the children is albino
Answer:
There is 1/6 of the probability that at least one of the children is albino.
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.
Which statements compare meiosis I and meiosis II? Check all that apply.
-The parent cell in meiosis I is diploid and has 2n chromosomes.
-Meiosis I produces two gametes that have exactly the same genetic make up.
-Meiosis II creates four daughter cells that are genetically different from one another.
-After meiosis I, two daughter cells with haploid number of sister chromatids are produced.
-Four gametes with haploid number of chromosomes and single chromatids result after meiosis II.
Answer:
after meiosis I two daughter cells with haploid number of sister chromatids are produced.
the parent cell in meiosis I is diploid and has 2n chromosomes.
four gametes with haploid number of chromosomes and single chromatids result after meiosis II.
Explanation:
Answer:
Meiosis II creates four daughter cells that are genetically different from one another.
After meiosis I, two daughter cells with haploid number of sister chromatids are produced.
Four gametes with haploid number of chromosomes and single chromatids result after meiosis II.
Explanation:
help due in 15 mins:(
Answer:
16
Explanation:
Your job is to write out a story about the Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “Grown Up” and moved away from home. Each now lives in a new place and has their own job and they have come home for the annual family reunion. Your job is to write a story that details their conversation as they all get together and discuss where they “live” and what they now “do.” It is your decision as to the format that you would like to use. For example, you could write a story in paragraph or script formats that identifies the job and location of each tissue. To help with this process, you will want to give each one of your tissues a name.
The tissues you have to include are epithelium, connective, nervous, and muscle tissues. Please answer before Febuary 12, 2021. It has to be a paragraph and give them names. Since this requires a lot of thinking and creativity it is worth 80 points.
Answer: Write out a story about the Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “grown up” and moved away from home. Each now lives in a new place and has their own job and they have come home for the anual family reunion.Your job is write story that details their conversation as they all get together and discuss where they ” live” and what the now “do”. It is your decision as to the format that you would like to use. For edxample you could write story in paragraph that identifies the job and location of each
Explanation:
The Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “grown up” and moved away from home.
What are Meristem cells?Meristem cells are totipotent meaning they can differentiate to any type of plant cells. Therefore they can produce a variety of plant type depending on epigenetic. However, tissue culture is derived from already differentiated cells. These cells are already determined and can only produce cell type of that plant from which they were derived.
Gene therapy is a method of using genetic material to treat or prevent certain diseases. A common method researchers have found to accomplish this is with vectors. Vectors are essentially vehicles designed to deliver therapeutic genetic material, such as functional genes, directly to cells. A vector-valued function, also called a vector function, is a mathematical function of one or more variables whose extent is a multidimensional vector or a set of infinite-dimensional vectors.
Therefore, The Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “grown up” and moved away from home.
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which RNA molecule carries amino acids
Answer:
Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein
Sally says her stomach and liver have nothing to do with her heart and blood, and that they are completely separate.
What did she say that is wrong?
What would be the correct statement?
What are the facts you’d use to correct her?
Answer:
The liver and heart work as a team. The liver filters blood pumped by the heart.
A pure-breeding, tall pea plant with white flowers is crossed with a pure-breeding, short plant with red flowers. The F1 plants are tall, with red flowers. When allowed to fertilize themselves, these produce the following F2: 326 tall, red; 104 tall, white; 117 short, red; and 29 short, white. You are conducting a Chi-Square analysis and what is the null hypothesis?
Answer:
Null Hypothesis -
The observed frequency is approximately equal to the expected frequency of phenotype.
Explanation:
Pure Breeding Cross - TTww x ttWW
Genotype of offspring in F2 generation - TtWw
Null Hypothesis -
The observed frequency is approximately equal to the expected frequency of phenotype.
The chi square analysis is attached
The degree of freedom for this question is 3
The p value for X^2 estimated through chi square test is 0.5
Hence the null hypothesis is accepted.
If plants were removed from an area, which statement below describes the outcome?
a) Carbon dioxide levels would increase.
b) Oxygen levels would increase.
c) None of the above.
d) Carbon dioxide levels would decrease.
Answer:
"A" they would increase
Explanation:
If plants were removed from an area, then Carbon dioxide levels would increase.
What happens if plants are removed from an area?When green plants prepare their food, they give off oxygen. This is a gas that all animals must breathe in order to stay alive.
Without plants, animals would have no oxygen to breathe and would die. Without plants, there would be no food to eat.
Thus, Carbon dioxide levels would increase.
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can I be a normal doctor at the same time be a heart surgeon????
answer:
yes, but it will defenitely be challenging since your handling two different things at once. even being any kind of doctor can require a lot of work.
when the cell concentrates potassium within against the natural tendency of matter it is performing
Your teacher has given you two mineral samples. He has told you that
they have the same crystal structure and hardness.
Which other observation would suggest that they are MOST LIKELY the
same mineral?
They have the same color.
They have the same shape.
They have the same size.
They have the same mass.
Genes carry the codes that tell the body how to form itself.
True or False
what happens when you just have 1 kidney
Answer:
Most people with a single kidney live a normal life without developing any long- or short-term problems. However, the risk of developing mild high blood pressure, fluid retention, and proteinuria is slightly higher if you have one kidney instead of two.