When an abnormally low sperm count is encountered in a fertility examination, the follow-up test of choice is the sperm survival test.
The sperm survival test is a test that checks to see how long sperm can live in a given sample. This test is used to determine whether or not sperm are capable of fertilizing an egg. Sperm can be affected by a number of factors, including age, diet, lifestyle choices, and certain medical conditions. An abnormally low sperm count can be an indication of a problem with the male reproductive system, or it can be a sign of an underlying health condition. If a man is experiencing a low sperm count, it is important to seek medical attention right away. This can help to identify the underlying cause of the problem and to develop an appropriate treatment plan.
In conclusion, when an abnormally low sperm count is encountered in a fertility examination, the follow-up test of choice is the sperm survival test.
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anyone really good at biology can help me
Answer:
im kinda okay
Explanation:
what do you need help on?
Answer:
Ok I will also hepl.
Explanation:
What is your question
normal components and a messenger rna (mrna) with the sequence 5′−uuuugccauguuugugcu−3′. what is the sequence of the radiolabeled peptide renata produces?
The sequence of the radiolabeled peptide produced by Renata can be determined by translating the mRNA sequence using the genetic code. The genetic code is a set of rules that specifies how the sequence of nucleotides in mRNA is translated into the sequence of amino acids in a protein. Each three-nucleotide sequence, called a codon, corresponds to a specific amino acid or a stop signal.
The mRNA sequence provided is 5′−UUUUGCCAUGUUUGUGCU−3′. To determine the sequence of the radiolabeled peptide produced by Renata, we can use the genetic code to translate the mRNA sequence into the corresponding amino acid sequence. Each codon in the mRNA sequence codes for a specific amino acid, and the sequence of codons determines the order of amino acids in the peptide chain. Using the genetic code, we can translate the mRNA sequence into the corresponding amino acids. Starting from the 5' end of the mRNA sequence, the codon UUU codes for the amino acid phenylalanine (Phe). The codon GCC codes for the amino acid alanine (Ala), and so on. By translating each codon, we can determine the sequence of amino acids in the peptide produced by Renata. Therefore, based on the provided mRNA sequence, the radiolabeled peptide sequence produced by Renata would be Phe-Ala-Met-Leu-Cys.
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what happens during interphase?the nucleus grows to its full cell grows to its full nucleus divides into two cell divides into two cells.
During interphase, which is the longest phase of the cell cycle, the cell undergoes several crucial processes in preparation for cell division. It can be divided into three main stages: G1 (Gap 1), S (Synthesis), and G2 (Gap 2).
In the G1 phase, the cell grows in size, performs its regular metabolic activities, and prepares for DNA replication. The nucleus is intact and not dividing during this stage.
The S phase is characterized by DNA replication, where the cell's genetic material is duplicated. Each chromosome forms two identical sister chromatids that remain attached at the centromere.
The G2 phase follows DNA replication and is focused on cell growth and preparation for division. The cell continues to synthesize proteins, increase in size, and check for any DNA damage or errors.
Therefore, during interphase, the cell grows in size, performs necessary metabolic activities, replicates its DNA, and ensures proper preparation for subsequent cell division.
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Which chemical is classified as an enzyme?
a. galactose
b. lipid
c. protease
d. manganese dioxide
Answer:
C. protease
Explanation:
Lungs, Trachea, Diaphragm, Nose: Which organ system do these belong to?
Circulatory
Excretory
Digestive
Musculoskeletal
Respiratory
Answer:
Respiratory
Explanation:
they all come together and help with breathing and oxygen :)
Answer: respiratory system
Explanation:
A football team lost 14 yards on their first play then lost another 7 yards on the next play. what internet represents the total change in yards for the two plays?
Answer:
-21
Explanation:
Guessing autocorrect took "integer" and put in "internet"?
- 14 yards -7 yards = -21 yards
What is the meaning of STEM
Answer:
Science, Technology, Engineering, and Math.
Answer:
problem solving creativity critical analysis
STEM is an approach to learning and development that integrates the areas of science, technology, engineering and mathematics. Through STEM, students develop key skills including: problem solving. creativity. critical analysis.
Explanation:
This should help! Have a great day!!
How are osmosis and diffusion alike?
Both move molecules from areas of high concentration to areas of low concentration.
Both processes occur through permeable bilayer membranes.
Both require additional energy provided by channel proteins.
Both allow solute molecules to move across a semipermeable membrane
Osmosis and diffusion are two essential processes that happen in our body. Both the processes have certain similarities that are as follows:
Both allow solute molecules to move across a semipermeable membraneBoth move molecules from areas of high concentration to areas of low concentration. Therefore, option (D) is correct regarding the similarities between osmosis and diffusion. It is also essential to note that osmosis and diffusion differ in the types of molecules being transported and in the direction of transportation. In diffusion, all types of molecules and particles can move, while in osmosis, only water molecules can move.
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In eukaryotes, transcription factors and enhancer sequences are used to regulate transcription. Classify the following statements as true or false. TRUE ___
FALSE ___
- Transcription factors bind to the entire enhancer sequence. - Enhancer sequences are composed of DNA base pairs - Enhancer sequences directly alter transcription levels. - Transcription factors always decrease transcription levels. - Enhancer sequences can be located thousands of base pairs downstream from the transcription start site.
Eukaryotic repressors bind to specific DNA sequences and prevent transcription, just like their prokaryotic counterparts. Hence (b) and (c) are true and (a), (d) and (e) are false.
A true statement is that enhancer sequences can be found thousands of base pairs after the transcription start point. DNA base pairs make up enhancer sequences. False: Enhancer sequences modify transcription levels directly. Levels of transcription are always increased by transcription factors. The whole enhancer sequence is where transcription factors bind. Enhancer regions, in addition to promoter sequences, aid in enhancing transcription. Enhancers may exist upstream, downstream, inside a gene, on different chromosomes, or anywhere in between. Enhancer areas are where transcription factors bind to promote or inhibit transcription. Both transcriptional activators and repressors control gene expression in eukaryotic cells.
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In eukaryotes, transcription factors and enhancer sequences are used to regulate transcription. Classify the following statements as true or false. TRUE ___
FALSE ___
a. Transcription factors bind to the entire enhancer sequence.
b. Enhancer sequences are composed of DNA base pairs
c. Enhancer sequences directly alter transcription levels.
d. Transcription factors always decrease transcription levels.
e. Enhancer sequences can be located thousands of base pairs downstream from the transcription start site.
Beneficial bacteria are found in our digestive tract
A. true
B. False
please help
I will give brainliest and 5 * and 10 points for the best answer
I don't want to see an link if I do you will be reported
Where can proteins be found when part of a plasma membrane?
Answer:
Peripheral membrane proteins are found on the outside and inside surfaces of membranes, attached either to integral proteins or to phospholipids. Unlike integral membrane proteins, peripheral membrane proteins do not stick into the hydrophobic core of the membrane, and they tend to be more loosely attached.
Explanation:
Bluebells in Different Locations
Plants known as bluebells exist in England,
Scotland, and the United States. In each of
these locations, however, the plant known as
a bluebell is very different from the plants
called bluebells in the other two locations.
Which of these is demonstrated by the information above?
O a
b
The need for controlling variables in experiments
The need for classifying and naming organisms scientifically
The importance of predicting trends from scientific data
The importance of questioning experimental evidence
c
Od
Answer: The need for classifying and naming organisms scientifically
Explanation:
State and describe three major factors that lead to reef erosion.
Reef erosion has occured due to overfishing, pollution and unsustainable forms of tourism, among other reasons.
Due to the increasing pollution, there are a number of toxicants and pollutants released in the air and water. As a result, there can be an increase in the growth of algae and other organisms that can hinder the growth or destroy the reefs.
Overfishing is also harmful to the coral reefs. Fishing nets left as debris cause entangling of the live corals which tears them away from their bases. The anchors used for fishing also can break and ruin coral reef colonies.
Increased tourism also adversely affects coral reefs. Irregukarized building of hotels and tourist places, irresponsible business management as well as irresponsible behavior of tourists also poses a threat to reefs.
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(10 points)
The diagrams below show some changes in an
environment over time.
(A)
(B)
(C)
Which phrase best describes this sequence of
diagrams?
(1) the path of energy through a food web in a
natural community
(2) the altering of an ecosystem by a natural
disaster
(3) natural communities replacing each other in
an orderly sequence
(4) similarities between an aquatic ecosystem
and a terrestrial ecosystem
(D)
r
Answer:
The correct answer is - (3) natural communities replacing each other in an orderly sequence
Explanation:
In this diagram, there is ecological succession occurred, the process of the new natural community over the older natural community in an orderly sequences.
In this case, there are change from an aquatic ecosystem to new land ecosystem by changing various biotc and abiotic factors. The ecosystem go through various changes and physical changes.
name the two worst extinctions known in Earth’s history.
Explanation:
Permian Triassic ExtincitonLots of places were affected, extinction; in species, vertebrates, etc, etc.
Devonian extinctionExtinction-- in marine species...
A person eats food prepared on a kitchen counter covered with living infectious bacteria. Which of the following best describes an example of how the bacteria might resist the person's nonspecific immune defenses?
Phagocytes that try to engulf the bacteria are soon destroyed by enzymes produced by the bacteria.
B cells are blocked from binding to the bacteria antigens because of enzymes secreted by the bacteria.
Infection would not be able to destroy the bacteria.
Plasma cells that would normally mark the bacteria for destruction are avoided by the bacteria.
Answer: Phagocytes that try to engulf the bacteria are soon destroyed by enzymes produced by the bacteria.
Explanation:
Answer:
Its A.
Explanation:
Phagocytes that try to engulf the bacteria are soon destroyed by enzymes produced by the bacteria.
I just took the test and got it correct.
during an experiment scientists study a portion of a gene found in the white mouse. they determined that the following sets of codons has been translated into a series of three animo acids shown below
mRNA sequence- GCA-UUA-UCG
amino acids sequince- alanine - leucine - serine
which of the following would be the expected outcome of this same set codons were to be found in humans genes
The human cell would be unable to translate the mRNA codons.
The sequence of amino acids would be completely different in the human.
The amino acid sequence would be identical in the human cell.
The human cell would be converted into a mouse cell.
Answer:
the amino a acid sequence would be identical to human cell
becuuse the codes sequencing is simialr in all animals
26 POINTS!!!!!!!! | Which statement best describes trait distribution?
A.) Distribution describes how the variation in traits is spread across a population.
B.) Distribution describes the different traits that are found in a population.
C.) Distribution describes how individuals in a population are spread across their habitat.
D.) Distribution describes the different traits that are found in a species.
Answer: I think its b not sure though
Explanation:
have a great day :)
The statement which best describes trait distribution is: B. Distribution describes the different traits that are found in a population.
What is a trait?
A trait can be defined as a distinguishing quality, feature or characteristic that is possessed by a living organism and it differentiates from other species of organisms.
Generally, a trait is commonly transferred from the parent of a living organism to her offspring, so as to distinguish him or her from others.
The examples of traits:
In Genetics, some examples of traits include the following:
Colorblindness Curly hairHeight ComplexionOn a related note, a trait distribution refers to different traits that are possessed by a living organism found in a population.
In conclusion, trait distribution is described as different traits that are found in a population.
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Three out of the four traits below belong to the same organism. Choose the trait that does NOT belong:
parapod
chaetae
proboscis
spongin
Spongin does not belong to the same organism as the other three traits. Parapod, chaetae, and proboscis are all features commonly found in various organisms, while spongin is specific to a particular group. Here option D is the correct answer.
Parapod refers to a pair of fleshy appendages found in certain annelid worms, such as polychaetes. These structures aid in locomotion and respiration, providing a wide surface area for movement and gas exchange.
Chaetae, also known as setae, are bristle-like structures found in many invertebrates, including annelid worms. They serve multiple functions, such as providing traction for movement, defense, and sensory perception.
Proboscis is a long, tubular structure found in various animals, including insects, mollusks, and some mammals. It is often used for feeding, sucking liquids, or probing for food sources. Examples include the proboscis of a butterfly or the trunk of an elephant.
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Complete question:
Which of the following traits does NOT belong to the same organism?
A) Parapod
B) Chaetae
C) Proboscis
D) Spongin
a major difference between fetal blood flow and adult blood flow is that in the fetus thegroup of answer choicesinternal iliac arteries are known as umbilical arteries.inferior vena cava contains blood high in oxygen.pulmonary artery delivers blood to the lungs.femoral vein contains blood low in oxygen.
A major difference between fetal blood flow and adult blood flow is that in the fetus the internal iliac arteries are known as umbilical arteries. The inferior vena cava contains blood high in oxygen, and the pulmonary artery delivers blood to the lungs.The circulatory system is responsible for blood flow in the human body.
Blood circulation is divided into two distinct phases: fetal blood flow and adult blood flow. The fetus has a unique blood flow system. Oxygen and nutrients are provided to the fetus by the umbilical cord.The internal iliac arteries are the primary vessels that supply blood to the fetal pelvis and lower limbs. These arteries become known as the umbilical arteries in the fetus. The umbilical cord carries oxygenated blood from the placenta to the fetus and returns deoxygenated blood to the placenta.The inferior vena cava (IVC) is a major vein that carries deoxygenated blood from the lower half of the body to the right atrium of the heart in adults. Blood with high oxygen content is found in the IVC in the fetus.
The pulmonary artery carries deoxygenated blood from the heart to the lungs, whereas the pulmonary veins transport oxygenated blood from the lungs to the heart. Blood with low oxygen content is found in the femoral vein of the adult body.Fetal blood flow and adult blood flow differ significantly. The umbilical cord in the fetus carries oxygenated blood from the placenta to the fetus and returns deoxygenated blood to the placenta. The internal iliac arteries supply blood to the fetal pelvis and lower limbs. The inferior vena cava carries blood high in oxygen, while the pulmonary artery carries blood low in oxygen. The femoral vein carries blood low in oxygen in adult circulation.
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The image represents the mitosis process and it is important because:
A. produces gametes with half genetic information than parent cell.
B. allows processes as growing and repair tissues in the body.
C. does not produce cells with the same genetic information than parent cell.
D. always produce somatic cells with the same characteristics, it does not matter the organ in the body.
Answer:
B. allows processes as growing and repair tissues in the body.
Explanation:
Mitosis is a process where a single cell divides into two identical daughter cells. During mitosis one cell divides once to form two identical cells and the dividing cell's chromosomes are copied and then distributed equally between the two new nuclei of the daughter cells.
The major purpose of mitosis is for growth and to replace worn out cells. It also plays an important part in the development of embryos.
Mitosis is divided into five stages:
1. Interphase- during interphase, the DNA in the cell is copied resulting in two identical sets of chromosomes. Microtubules also extend from the centrosomes outside the nucleus
2. Prophase- during this phase, the sister chromatids in each chromosome pair up, the nuclear membrane dissolves and the mitotic spindle consisting of microtubules and other proteins extend across the cell between the centrioles which move to opposite ends of the cell.
3. Metaphase- the chromosomes line up at the centre of the cell and the mitotix spindle attaches to eachmof the sister c hromatids.
4. Anaphase- the sister chtomatids are pulled apart to each end of the cell by the mitotic spindle.
5. Telophase- at each pole, a full set of chromosomes gather together, a membrane encloses each chromosome, the cell pinches at the middle and then divides into two. This is known as cytokinesis.
Which of the following is NOT used as evidence for evolution?
A
Embryology
B
Allele Frequency
C
Comparative Anatomy
D
DNA Similarities/Differences
The question is in the picture
Answer:
Nitrogen base
Nitrogen base I think
Explanation:
How is a cell like a stadium
Answer:
A Cell Wall is like the structure of the stadium because the both hold the cell together and protect from attack
Explanation:
Which of the following statements about the population in this graph is true?
It is increasing slowly.
It is increasing rapidly.
Answer:
It is increasing rapidly.
here is your answer
don't forget to give some hearts
Explanation:
The statement which is true about the population in this graph is that it is increasing rapidly. Thus, the correct option for this question is B.
What is a Population?A population may be defined as a group of individuals belonging to the same species living in the same area at a definite time. The size, density, birth rate, death rate, and abundance, are some characteristics of a population. These characteristics of the population are known as demographic factors.
According to the context of this question, the axis of the graph is increasing very rapidly. It determines the rate of population towards rapid growth. The growth of any population depends on various factors such as space, food, resources, mating partners, availability, etc.
Therefore, the statement which is true about the population in this graph is that it is increasing rapidly. Thus, the correct option for this question is B.
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HELP...ill give brainliest! PICTURE ATTATCHED!!!!!!
Answer:
D I think is the answer
GIVING BRAINLIEST!!!
Birds ______________ when resources such as food and nesting locations are low. Migrating is a behavioral adaptation.
Answe
Explanation:
Birds __MIGRATES__when resources such as food and nesting locations are low. Migrating is a behavioral adaptation.
Answer:
Person above was right. Birds migrate when resources are low.
Explanation:
Chrome 2022.
what critical service supports shared objects, logon services, print services, and remote procedure calls?
The critical service that supports shared objects, logon services, print services, and remote procedure calls is the Remote Procedure Call (RPC) service.
This is an inter-process communication (IPC) technique that enables the communication between a client and server process across different networks, even on different operating systems. RPC service enables a client to invoke a method on a server and receive a response as if the client were running on the same device as the server. The primary function of RPC service is to facilitate the communication between client and server programs over a network. RPC service is built on a client-server model that runs as a service on the server and handles client requests sent by the client as input parameters in a method call.
RPC service supports shared objects, logon services, print services, and remote procedure calls through various protocols like Transmission Control Protocol (TCP), User Datagram Protocol (UDP), and Remote Direct Memory Access (RDMA). RPC service is an essential part of the Windows operating system and is required for many system processes and applications to function correctly. It plays a crucial role in the Windows environment as it provides a common mechanism for different processes running on different machines to communicate with each other. So therefore he Remote Procedure Call (RPC) service is the critical service that supports shared objects, logon services, print services, and remote procedure.
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mutations that eliminate a contiguous region in the drosophila embryo's segmentation pattern are called
Mutations that eliminate a contiguous region in the Drosophila embryo's segmentation pattern are called pair-rule mutations.
What is a pair-rule mutation?A pair-rule mutation is a type of genetic mutation that disrupts the regular patterning of segments in the developing embryo of Drosophila, causing the loss of every other segment or segment half in the final adult organism. Pair-rule genes are responsible for the development of the embryo, and their mutations are called pair-rule mutations.
A pair-rule mutation eliminates a contiguous region in the drosophila embryo's segmentation pattern by disrupting the regular patterning of segments in the developing embryo of Drosophila, causing the loss of every other segment or segment half in the final adult organism.
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I was thinking B or C but i need another opinion
Answer:
Option C
Explanation:
Option C makes the most sense because it is true.
I hope it helps!!!