male ants still produce sperm through meiotic cell divisions. given their cells are haploid at the start, which stage of meiosis is likely to be unnecessary for the formation of their gametes?
Answers
Male ants cells are haploids that can produce sperm by foregoing the first meiotic division and formulating two sperm cells through the second meiosis.
In the Hymenoptera (bees, wasps, and ants), uninoculated embryos being haploid establish into males, whereas fertilized eggs, being diploid, establish into females.
To produce gametes, meiosis I and meiosis II are required. Meiosis I is a distinct cell division that takes place only in germ cells; meiosis II is comparable to a mitotic division.
Meiosis, a form of cellular division that decreases the number of genetic material in a parent diploid cell by half, produces haploid gametes. Some organisms, like algae, have haploid segments of their entire lifecycle. Other organisms, such as male ants, live their entire lives as haploid organisms.
For more information on Haploids, visit :
https://brainly.com/question/15056761
#SPJ4
Related Questions
which of the following answers best describes the flow of information when a gene directs the synthesis of proteins?
Answers
The flow of information when a gene directs the synthesis of proteins is; DNA > RNA > Protein. Option D is correct.
First, DNA serves as the template for the synthesis of RNA molecules through a process called transcription. During transcription, an enzyme called RNA polymerase reads the DNA sequence and synthesizes a complementary RNA molecule, known as messenger RNA (mRNA). The mRNA carries the genetic information from the DNA to the ribosomes in the cytoplasm.
Next, the mRNA is translated into a protein in a process called translation. Ribosomes, along with transfer RNA (tRNA) molecules carrying specific amino acids, read the mRNA sequence and synthesize a polypeptide chain. Each three-letter sequence on the mRNA, called a codon, corresponds to a specific amino acid, which is brought to the ribosome by the corresponding tRNA molecule. The ribosome links the amino acids together to form a protein chain.
Hence, D. is the correct option.
To know more about transcription here
https://brainly.com/question/8926797
#SPJ4
--The given question is incomplete, the complete question is
"which of the following answers best describes the flow of information when a gene directs the synthesis of proteins? A) Protein > RNA > DNA B) DNA > tRNA > mRNA > Protein C) DNA > amino acid > RNA > Protein D) DNA > RNA > Protein."--
My teacher asked for an illustration of an Atom what is an illustration
Answers
Answer:
ot mean drawing picture
Explanation:
illustration mean a drawing .diagram or a picture in a book or magzine
hope ur help
Answer:
Hi, Friend!
My teacher asked for an illustration of an Atom what is an illustration?
The definition of an illustration is a picture or a drawing or the act of creating the drawing, or is an example used to explain or prove something.
Have a great day!↑↑
xXxAnimexXx
Pick a stage of life or "family unit"
Pick a challenge that typically occurs at that time in life, or in a family unit, include explanation and detail.
Answers
Which traits in the investigation showed blending of genes (incomplete dominace) where the dominant trait did not mask the recessive but rather there was physical evidence of both the dominant and recessive traits?
Answers
Answer:
skin colour, eue colour, sickle cell anaemia etc
Explanation:
These are traits that aren't fully transmitted from the parent's gene to that of the offspring
Which type of organism is missing from the food web seen in the illustration?
A. Primary consumers
B. Decomposers
C. Primary producers
D. Secondary consumers
Answers
What is the global variation in sea level brought about by change in the volume of water occupying the ocean basins?.
Answers
The global variation in sea level brought about by change in the volume of water occupying the ocean basins that is eustasy.
Sea level rise is therefore a climate change phenomenon that increases the volume of ocean water, primarily as a result of the melting of ice sheets and glaciers and the thermal expansion of water. Global sea levels are rising as a result of human-induced global warming, and the recent rate of rise is unprecedented in the last 2,500 years. Sea level rise is mainly caused by two factors related to global warming.
As the planet warms sea levels rise for two reasons. First, as temperatures rise land-based ice such as glaciers and ice sheets melt and the melted water flows into the sea causing sea levels to rise. Second warm water expands and takes up more space than cold water increasing the volume of ocean water. The major physical impacts of sea-level rise include coastal erosion, delta inundation, and flooding and loss of many wetlands and marshes.
Learn more about The ocean basins here:-https://brainly.com/question/19933652
#SPJ4
Once blood delivers oxygen, what does it pick up from cells on its way back to the heart?
nutrients
nitrogen
carbon dioxide
Answers
Answer:
Your answer is C) Carbon Dioxide.
Answer:
I'm fairly sure its carbon dioxide .
Drag each label to the correct location. Classify the interactions as being direct or indirect competition. Two eagles fight over a salmon carcass. All the gray foxes in a habitat prey primarily on penguins. Two colonies of black ants clash over a wasp. Gray squirrels in an area rely on nuts for food.
Answers
Answer:
Two eagles fight over a salmon carcass- DIRECT
All the gray foxes in a habitat prey primarily on penguins- INDIRECT
Two colonies of black ants clash over a wasp- DIRECT
Gray squirrels in an area rely on nuts for food- INDIRECT
Explanation:
Living organisms of same or different species tend to interact with one another in their natural habitat. One of those interactions is competition, which occurs when living organisms share the same limited resources or occupy the same niche in their habitat.
However, competitive interaction between organisms can either be direct or indirect. Direct interaction is that which involves a physical interaction between the organisms i.e. a confrontation. A struggling for the limited resource is evident. For example, two eagles fighting over a salmon carcass and two colonies of black ants clashing over a wasp shows the form of physical confrontation for the limited resource between the organisms involved. Hence, they are examples of direct competition.
On the other hand, indirect competition involves the competition for a limited resource without a physical confrontation or struggle. Organisms make use of the limited resource until it becomes unavailable to competitors. For example, gray foxes in a habitat that prey primarily on penguins and gray squirrels in an area relying on nuts for food shows a competition for a scarce resource without any physical interaction between them. Hence, they are examples of indirect competition.
draw a cell nucleus. label and give the function of the following structures: chromatin, nucleolus, and nuclear envelope
Answers
Chromatin packages DNA, nucleolus produces ribosomes, and the nuclear envelope maintains the shape of the nucleus and controls the movement of materials between the nucleus and cytoplasm.
The cell nucleus is a membrane-bound organelle present in eukaryotic cells.
It is generally spherical and is responsible for controlling the cell's activities and storing DNA, which carries the genetic information.
Here's how to draw a cell nucleus and label and give the function of the following structures: 1. Chromatin: The genetic material, DNA, is present in the form of chromatin.
It is wrapped around histone proteins to form nucleosomes and is responsible for packaging DNA into a more compact and manageable structure.
Chromatin is also responsible for gene expression, replication, and repair.
2. Nucleolus: It is an organelle that is present within the nucleus and is responsible for producing ribosomes.
The nucleolus has two primary functions: the production of ribosomal RNA (rRNA) and the assembly of ribosomal subunits.
It is composed of DNA, RNA, and proteins.
3. Nuclear Envelope: It is a double membrane that encloses the nucleus and separates its contents from the cytoplasm.
It is responsible for maintaining the shape of the nucleus and controlling the movement of materials between the nucleus and the cytoplasm.
The nuclear envelope has small pores that allow the transport of small molecules, ions, and macromolecules between the nucleus and the cytoplasm.
In summary, chromatin packages DNA, nucleolus produces ribosomes, and the nuclear envelope maintains the shape of the nucleus and controls the movement of materials between the nucleus and cytoplasm.
For more questions on Chromatin
https://brainly.com/question/11751001
#SPJ8
what is unisexual flower
Answers
Distinguish between natural selection and artificial selection.
Answers
Answer:
Natural selection is based on an animal's adaptive characteristics. Artificial selection is dependent on human-selected attractive characteristics. Natural selection only passes on positive or desirable characteristics to subsequent generations.
Explanation:
Hope this helps!
Please mark me as Brainliniest.
"Medieval reenactors can never truly reproduce the past. Is reenactment still a worthwhile exercise? Why or why not? Answer, using specific examples to support your opinion. (2 marks)
Answers
Medieval reenactors may not be able to fully recreate the past, but reenactment is still a valuable exercise. It provides educational and experiential opportunities, fosters a sense of community, and helps preserve historical knowledge and traditions.
Although it is true that historical reenactors cannot accurately recreate the past, their efforts are nonetheless valuable. Both participants and viewers can learn something new at reenactment activities. Reenactors bring history to life in a concrete sense by carefully researching and reenacting historical attire, weapons, and activities.
People can learn more about the past and the lifestyles of medieval people thanks to this practical technique. A reenactment of a medieval combat, for instance, offers a visceral appreciation of the difficulties and tactics faced by warriors during that time.
Reenactment also strengthens the bonds between enthusiasts. It brings together people who have a common interest in history and gives them a forum on which to interact, work together, and gain knowledge from one another. Reenactment clubs frequently host lectures, workshops, and demonstrations where individuals can share their knowledge and expertise. This element of community contributes to the development of a strong, welcoming, and committed neighborhood.
Reenactments also aid in the preservation of historical information and customs. Reenactors aim for authenticity and accuracy in their portrayals by doing extensive research and using historical materials. This commitment to historical truth contributes to preventing the erasure of important knowledge and cultural traditions. For instance, historical reenactment organizations from the Middle Ages might resurrect long-forgotten crafts or dances, preserving them for future generations.
To know more about reenactment here https://brainly.com/question/30570774
#SPJ4
Most biologists argue that the regulation of gene expression is considerably more complex in eukaryotes than in bacteria. List the four factors that in your view make the largest contribution to this perception.
Select the four correct statements.
1. The coordinated regulation of sets of genes devoted to a single function (e.g. metabolic pathways) allows minimal wasting of a cell's resources on unneeded proteins and metabolites.
2. Multicellularity and cell-type specificity is frequent in eukaryotes and requires organisms to regulate large suites of genes in a cell-type-specific manner.
3. The chromatin structure of eukaryotic genomes allows the differential packaging of genes to be used in regulation.
4. Posttranslational processing of proteins allows cells to regulate the function of proteins after their synthesis by covalent modification, transport, or both.
5. The extensive use of attenuation allows eukaryotes to fine-tune transcriptional activity of a cell according to environmental signals.
6. Eukaryotic cells possess a nucleus, which separates transcription from translation and allows RNA processing and transport to be used in regulation.
Answers
Most biologists argue that the regulation of gene expression is considerably more complex in eukaryotes than in bacteria. List the four factors that in your view make the largest contribution to this perception.
The four factors that make the largest contribution to this perception are:
1. The coordinated regulation of sets of genes devoted to a single function (e.g. metabolic pathways) allows minimal wasting of a cell's resources on unneeded proteins and metabolites.
2. Multicellularity and cell-type specificity is frequent in eukaryotes and requires organisms to regulate large suites of genes in a cell-type-specific manner.
3. The chromatin structure of eukaryotic genomes allows the differential packaging of genes to be used in regulation.
4. Posttranslational processing of proteins allows cells to regulate the function of proteins after their synthesis by covalent modification, transport, or both.
To know more about "Eukaryotes" refer here:
https://brainly.com/question/18335760?referrer=searchResults#
#SPJ11
Which organism is an animal-like protist?
cilia
dinoflagellate
amoeba
truffle
Answers
Answer:
✅ C. amoeba
just took the test
The organism that is an animal-like protist is the amoeba.
What are amoebas?Amoebas are a group of single-celled organisms belonging to the phylum Amoebozoa. They are classified as protists, which are a diverse group of eukaryotic microorganisms that do not fit into the categories of plants, animals, or fungi.
Amoebas are characterized by their ability to move and change shape through the use of pseudopodia, which are temporary extensions of their cell membrane. These extensions allow amoebas to engulf and surround their food, typically consisting of bacteria, algae, or other small organisms.
Amoebas are single-celled protists that move using pseudopodia, which are temporary extensions of their cell membrane. They are classified as animal-like because of their ability to move and capture food in a similar manner to animals. Amoebas belong to the phylum Amoebozoa and are commonly found in freshwater and soil environments.
The correct answer is amoeba.
For more details regarding amoebas, visit:
https://brainly.com/question/24592455
#SPJ5
Scientists have studied the return of plant life on Mount St. Helens ever since the volcano erupted in
1980. Wildflowers began colonizing the area, followed by shrubs and small trees. Scientists predict
that it will likely take hundreds of years before the area returns to a forest dominated by fir and
hemlock trees. These changes are an example of:
a. humans degrading an ecosystem by removing wildflowers
b. the loss of genetic variation in a plant species
C. the growth of a forest through ecological succession
d. the biological evolution of wildflowers, shrubs, and trees
Answers
Answer:
C.
The ecosystem there will definitely go through ecological succession by which the structure of the flora there will evolve over time into forests.
1. Evaluate your exposure to some or all of the indoor air pollutants in your home
2. What would you say is the most surprising?
3. Come up with a plan for reducing your exposure
4. Who do you feel is responsible for this pollution?
Answers
Constant exposure to vehicle pollutant and harmful gases is a result of using diesel and petrol which cause more pollution and effects health.
What is pollutant and how the exposure cause harm to health?Being the que again and highlighting the harms of pollution has become so used to now , the harmful gases from the chimneys of factory effects mainly aged people around cities.I feel the most harmful exposure , which sounds hard to say and that is the vehicle engine release.So many studies and orders put forward to ban the use of sulphur in petrol but still not followed on point.Use of CNG gas was ordered to be necessary and be charged a fine of vehicle found not be on.The Nitrous oxide and many harmful nitrogen and hydrogen compound sin the harmful gases directly effects the lungs and respiratory passage of humans.To know more about pollutants visit:
https://brainly.com/question/23857736
#SPJ13
A scientist makes a discovery that suggests a hominid species created and used relatively sophisticated tools. The scientist decided to publish his findings. Which of the following sources would be regarded as the most reliable?
Answers
Answer: The answer is A Journal Reviewed By Peers
Explanation:
Which of the following illustrations BEST represents meiosis?
Group of answer choices
D
A
B
C
Answers
Answer:
The best choice is C
Explanation:
Which best describes a teratogen?
a Any material that could carry disease.
b
Disease causing agent, such as a bacterium, virus,
fungus, or protozoan.
C
A chemical that can cause deformities in a
developing embryo.
d A chemical that can cause cancer.
Answers
Answer:
C
Explanation:
teratogen is any agent that causes an abnormality following fetal exposure during pregnancy. Teratogens are usually discovered after an increased prevalence of a particular birth defect. For example, in the early 1960's, a drug known as thalidomide was used to treat morning sickness.
(nih.gov)
which life history traits are typically associated with an insect such as a housefly? select all that apply.little to no parental careslower developmentmany reproductive events with few offspringhigh mortality rates early in life
Answers
Insects like houseflies have a unique life history that differs from other organisms.
They exhibit traits such as slower development, many reproductive events with few offspring, and high mortality rates early in life.
Since houseflies do not invest much in parental care, they prioritize reproducing as much as possible.
This means they have a shorter lifespan, but they can produce numerous offspring in that time.
These traits are typical of insects as they have adapted to their environment to ensure their survival and propagation.
learn more about traits here:brainly.com/question/1463051
#SPJ11
substrates are held in the active site by _______.
Answers
Substrates are held in the active site by weak chemical bonds. The active site is a region in an enzyme where substrates can bind, catalyzing a chemical reaction. The enzyme-substrate complex forms when substrates bind to the active site of an enzyme.
The active site is a pocket or groove on the enzyme surface, and it has a specific shape, which is complementary to the shape of the substrate. Enzyme activity is dependent on the shape of the active site. When the substrate binds to the active site, weak chemical bonds form between the enzyme and the substrate, and these bonds hold the substrates in place so that the reaction can occur. The bonds are usually hydrogen bonds, ionic bonds, and van der Waals interactions. This creates a stable enzyme-substrate complex, which allows for the chemical reaction to occur.Learn more about the active site-
https://brainly.com/question/28326269
#SPJ11
The substrates are held in the active site by various interactions, such as hydrogen bonding, ionic interactions, and hydrophobic interactions.
Enzymes are biological catalysts that speed up chemical reactions in living organisms. They do so by binding to specific molecules called substrates and facilitating their conversion into products. The region on the enzyme where the substrates bind is known as the active site.
The active site has a unique shape that complements the shape of the substrates. This complementary shape allows the substrates to fit into the active site like a lock and key. The binding of substrates to the active site is essential for enzyme function and catalysis.
The substrates are held in the active site by various interactions. These interactions include hydrogen bonding, ionic interactions, and hydrophobic interactions. These forces help stabilize the substrates in the active site, allowing the enzyme to catalyze the chemical reaction more efficiently.
Learn more:
About substrates here:
https://brainly.com/question/22428921
#SPJ11
Where does the Cape Fear River begin and end?
Answers
Answer: The Cape Fear River begins in the Blue Ridge Mountains in the state of North Carolina and ends at the Atlantic Ocean in the city of Wilmington, North Carolina. The river is approximately 214 miles long. The width of the river varies depending on the location, but it can be up to 1 mile wide in some areas. One unique feature of the Cape Fear River is that it is home to the Cape Fear shad, a type of fish that is unique to the river and its tributaries.
What effect would el niño most likely have on organisms? a. el niño would cause the extinction of an entire species. b. el niño would cause changes in the genetic makeup of organisms. c. el niño would cause continents to move to different parts of the planet. d. el niño would cause organisms to move in search of food and better conditions.
Answers
The most likely effect of El Niño on organisms is: El Niño would cause organisms to move in search of food and better conditions. Therefore the correct option is option D.
Changes in sea surface temperatures and precipitation patterns brought on by El Nio may have an impact on the quantity and spread of marine organisms like plankton, fish, and marine mammals.
Terrestrial ecosystems, such as grasslands and rainforests, can be impacted by changes in temperature and precipitation, which can have an effect on the distribution and behaviour of land creatures.
In reaction to these changes, organisms may move in search of a suitable environment and food sources. It is crucial to remember that based on the particular ecosystem and the intensity of the El Nio event, the effects of El Nio on organisms can change.
For such more question on organisms:
https://brainly.com/question/17259533
#SPJ11
7474474744747474747474747474747747777747444
Answers
Answer:
7474747474747474747474747474747474774774747474747474
Explanation:
pls give me brainliest
What is found in viruses but not cells?
Answers
There are no cells in viruses. The genetic material they possess is shielded by a protein sheath (either DNA or RNA).
What is contained within every virus?Nucleic acid (the genome) and protein are the two primary components of infectious viral particles. All viruses that have an envelope also have lipid in the envelope and carbohydrates in their glycoprotein peplomers (as well as that in the nucleic acid).
Instead of a cell wall, what do viruses possess?In virology, viruses choose a protective protein coat over the cell walls that certain living things have in place of the nucleic acid. This kind of covering is known as a capsid.
To know more about cells visit :-
https://brainly.com/question/30046049
#SPJ4
how can oil wells affect the environment?
Answers
Answer:
Oil and gas production are among the main culprits of air pollution – one of the world's biggest killers according to the United Nations. When fossil fuels are burned by power plants, automobiles and industrial facilities, they generate toxic gases.
PLEASE ANSWER THISSSSSSSD
Answers
Answer:
D. Carbon dioxide + waterExplanation:
I hope it helps ❤❤so what was the answer? you posted the question and the options, yet no answer? smh
Answers
I can't see the answer
After school, Kai feels hungry and tired. He finds some sugar cookies in the cabinet and finishes the whole package.
Which statements best describe the role of glucagon and insulin in this scenario?
O Glucagon was secreted by his pancreas before he ate the cookies because his blood glucose was low. Insulin
was secreted after he ate the cookies because his blood glucose was high.
O Insulin was secreted by his pancreas before he ate the cookies because his blood glucose was low. Glucagon
was secreted after he ate the cookies because his blood glucose was high.
O Glucagon was secreted by his pancreas before he ate the cookies because his blood glucose was low. After he
ate, insulin from the cookies increased his blood sugar levels.
O Insulin was secreted by his pancreas before he ate the cookies because his blood glucose was low. After he ate,
glucagon from the cookies increased his blood sugar levels.
Answers
Answer: Option A) Glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. Insulin was secreted after he ate the cookies because his blood glucose was high.
Explanation:When Kai was hungry and his blood glucose level was decreasing, glucagon is the hormone which was secreted by the islets of pancreas to increase the blood sugar levels in his body. Glucagon forces the liver to release the stored glucose in it, which increases the blood glucose level in the body. When Kai ate the sugar cookies there was enough of blood glucose available for his body, also it exceeded the requirement and went high. Insulin was then secreted to control this excess glucose from the islets of pancreas. As it helps the body cells to absorb the glucose and lowers the amount of glucose in the blood. It makes the cell available with the glucose to produce energy and perform their activities.
In short, glucagon and insulin both are secreted by the same organ which is islets of pancreas. But they differ in their function, glucagon increases the blood glucose when the body needs it, whereas insulin helps to absorb the excessive glucose and stores that in the body. Both are the hormones which help in regulating the body glucose levels.
During process of digestion which takes place in digestive tract statement which describes role of glucagon and insulin is glucagon was secreted by pancreas before he ate the cookies because his blood glucose was low. Insulin was secreted after he ate cookies because his blood glucose was high.
What is digestive tract?It consists of the gastrointestinal tract along with the accessory organs which are present in digestion process . It involves the breakdown of complex food into smaller components which can be easily assimilated and absorbed by the body.
The digestion process has 3 phases: cephalic phase , gastric phase and intestinal phase.Cephalic phase begins with secretion of gastric juices from gastric glands in response to sight and smell of food.It involves chewing and chemical breakdown of food by the action of digestive enzymes ,saliva in the mouth contain enzymes like lipase and amylase which are secreted by the salivary and serous glands present on the tongue.
Learn more about digestive tract,here:
https://brainly.com/question/28163067
#SPJ2
Type I and II species are commonly associated with K-selected species that can more easily survive natural disruptions. True False
Answers
Type I and II species are commonly associated with K-selected species that can more easily survive natural disruptions. This statement is considered The survivorship curve is used to represent the patterns of mortality of different species.
The survivorship curves of most organisms fall into three types. Type I survivorship curves occur when death rates are low in early and middle life and rise steeply in later life. Type II curves are linear and show a constant death rate over an organism's life. Type III curves have high death rates early in life and then slow down for those who survive. The term “K” refers to the carrying capacity of a given environment for a given species.
K-selected species have a reproductive strategy that maximizes their ability to compete for resources in a stable environment where population growth is restricted by the environment's carrying capacity. They often live in populations that are near carrying capacity and are usually larger, and Type I and II survivorship curves are associated with them. So, it is true that Type I and II species are commonly associated with K-selected species that can more easily survive natural disruptions.
To know more about K-selected visit:
https://brainly.com/question/13046597
#SPJ11