Answer:
B. Meiosis
Explanation:
The meiosis produces genetically different cells.
What does stage 4 show?
A. A young female cone with fertilized eggs matures into a seed
cone.
B. A spore divides and grows into a pollen grain using mitosis.
C. Young male cones produce spores using meiosis.
D. A seed that contains an embryo plant grows into a young pine
tree.
Answer:
A.
Explanation:
It looks like the pine cone looks like is turning into a normal cone. That is why.
Answer: A. it looks as if its matured from being a young cone
Why did Gregor Mendel use peas in his experiments?
Peas grow very slowly.
Pea reproduction cannot be controlled.
Peas normally produce very few offspring.
Peas have characteristics that have two forms.
Answer: Peas have characteristics that have two forms
Explanation: He chose peas because they had been used for similar studies, are easy to grow and can be sown each year. Pea flowers contain both male and female parts, called stamen and stigma, and usually self-pollinate. Self-pollination happens before the flowers open, so progeny are produced from a single plant.
Peas having characteristics that have two forms is the reason they were
used by Gregor Mendel
Who was Gregor Mendel?He was a biologist and is regarded s the father of modern genetics. He
performed various experiments using pea plants.
The reason why the pea plants was used by him was as result of it having
characterisitics in two forms such as smooth and wrinkled etc.
Read more about Gregor Mendel here https://brainly.com/question/1675246
Which of the following is definitely true about the kingdom, Protista.
A. They always have a cell wall
B. They always have a nucleus
C. They are always unicellular
D. They are always heterotrophs
Answer:
B. They always have a nucleus
Explanation:
The organisms belonging to kingdom Protista are single-celled- means they are unicellular and they have a well-defined nucleus enclosed in a nuclear membrane. Hence, they are eukaryotes. So the correct option is B.
Answer:
B. They always have a nucleus
Explanation:
Protista always has a nucleus. So, option (B) is the correct answer.
Name the site of erythropoiesis in adults
Answer:
Explanation:As stated above, in adults the principal sites of red cell production, called erythropoiesis, are the marrow spaces of the vertebrae, ribs, breastbone, and pelvis.
what find of spider of this kind of spider is this?
Answer:
Fishing Spider
Explanation:
Dolomedes is a genus of large spiders of the family Pisauridae. They are also known as fishing spiders, raft spiders, dock spiders or wharf spiders
What are substances that make the plant body erect?
Answer:
The root system, which supports the plants and absorbs water and minerals, is usually underground. The organ systems of a typical plant are illustrated below. The shoot system of a plant consists of leaves, stems, flowers, and fruits. The root system anchors the plant while absorbing water and minerals from the soil.
Which is not a major reservoir of carbon?
O rivers and lakes
O oceans
O living things
O fossil fuels
Answer:
i think its fossil fuels but dont dont quote me on that
3 things that you learned about Particle Theory and Wave Theory of Light
hi! can someone help with this question?
"Why is the nitrogen cycle essential to plant and animal life?"
Answer:
Plants and animals could not live without nitrogen. It is an important part of many cells and processes such as amino acids, proteins, and even our DNA. It is also needed to make chlorophyll in plants, which plants use in photosynthesis to make their food and energy
What is the difference between gene mutations and chromosome mutations?
A. Gene mutations are preventable and chromosome mutations are not
B. Gene mutations can happen easily and chromosome mutations are more difficult
C. Gene mutations only affect one gene while chromosome mutations affect many genes
Answer:
C. Gene mutations only affect one gene while chromosome mutations affect many genes.
Explanation:
The difference is that the gene mutations only affect one gene while chromosome mutations affect many genes.
Dar tres ejemplos de alimentos con funcion estructural,tres ejemplos de alimentos con funcion energetica y tres ejemplos con funcion reguladora
Answer:
Alimentos plásticos o constructores: En este grupo se encuentran: Leche, yogurt y quesos. Carnes, pescados y huevos.
Función reguladora:todo tipo de frutas, como manzana, naranja, mandarina al igual que las espinacas, acelgas .
alimentos energéticos, pastas, arroz, productos de panificación (pan, galletas, etc.), dulces, miel, aceites, frutos secas (almendras, nueces, castañas ,
Explanation:
Which of these can lead to the extinction of a species?
Plz help
Answer:
Explanation:
It would be A because if you lost your home they will be killed by predictors
where does osmosis take place
Answer:
In Gastrointestinal system:
When we eat food or drink water, it travels from our mouth, down our oesophagus and into our stomach. In the stomach, the food is broken into tiny pieces that are mixed with stomach liquids. This mush of food and stomach liquids is called chyme. The chyme travels into the small intestine. This is where osmosis takes place.
In our Kidneys:
Our kidneys keep blood and tissue fluid (internal environment) 'clean' by removing urea, excess water and other wastes and excreting them. This controls the amounts of dissolved substances in blood and tissue fluid, a process called osmoregulation. If tissue fluid becomes too concentrated, cells will lose water by osmosis and become dehydrated and if it becomes too dilute, cells will take in excess water by osmosis.
Help Brainliest to anyone who answers me ASAP!!!
Which scenario is an example of a negative feedback loop?
A.
When body temperature increases, sweat is produced as a cooling agent to lower body temperature.
B.
In some parts of the world, birth rates are far exceeding death rates, which has led to overpopulation.
C.
Ice reflects sunlight much better than water. A warmer atmosphere is turning ice to water, which is absorbing more of the Sun’s energy.
D.
A warmer atmosphere is leading to warmer oceans. A warm ocean releases more carbon dioxide, which traps more heat in Earth’s atmosphere.
Answer:
A)
Explanation:
Question has been asked before so I know the answer.
Why is it that we use the two-name binomial nomenclature invented by Carl Linneaus still to this day?
A. Because mountain lions and pumas are actually very different animals.
B. Because the system is widely accepted and used all over the world universally.
C. Because everybody knows how to speak Latin and Greek.
D. Because Carl Linneaus was just that important.
Answer:
B. Because the system is widely accepted and used all over the world universally.
Explanation:
In contrast to earlier names that were made up of diagnostic phrases, binomial names (or “trivial” names, as Linnaeus himself called them) conferred no bias about the quality or value of plant species named. Rather, they served as labels by which a species could be universally addressed.
Answer:
B. Because the system is widely accepted and used all over the world universally.
Explanation:
We use the two-name binomial nomenclature invented by Carl Linneaus still to this day because, the system is widely accepted and used all over the world universally.
1) A specialized function shared by the many cells lining the lungs and the lumen of the gut isA) decreased oxygen demand due to the lack of oxygen in foods.B) increased exchange surface provided by their membranes.C) greater numbers of cell organelles contained within their cytoplasm.D) greater protection due to increased cellular mass.E) lowered basal metabolic rate due to cooperation between cells
Answer:
B) increased exchange surface provided by their membranes
Explanation:
Alveoli are tiny air sacs that are responsible for exchanging oxygen (O2) and carbon dioxide (CO2) in the lungs. Alveoli have elastic fibers in order to expand and recoil depending on the volume of air breathed in. The alveolar epithelial cells (pneumocytes) may adopt a shape that serves to increase the surface area of gas exchange. On the other hand, intestinal epithelial cells have microvilli, which are microscopic projections in the plasma membrane. Microvilli serve to increase the cell's surface area, thereby facilitating the absorption of nutrients and water.
Answer:
B) increased exchange surface provided by their membranes.
Explanation:
The intestine that characterizes by being folded, and by having its walls covered by villi that project into the lumen. They are more concentrated in the first portion of the intestine, decreasing to the final region of the organ. They are involved in nutrients absorption by increasing the absorption area.
Nutrients are absorbed by primary cells and transported to the bloodstream. Mucus is secreted to protect the epithelium during digestion. Villi also transport water from the blood to the intestinal tract, which helps in food decomposition.
Besides the absorption function, the intestine characterizes by doing the peristaltic movement, secretion through special glandules, digestive function, absorptive functions, secretion functions, and endocrine functions.
Animals must have a respiratory membrane to make gas interchange. This surface must be humid, thin, and revested by a simple plane epithelium, plenty of vessels. The membrane must be permeable and exposed for gases to circulate. This membrane might be on the body surface or in specific respiratory organs, such as lugs. The gas exchange occurs by simple diffusion. Oxygen tends to diffuse to the interior of the organisms, while carbon dioxide tends to get out of it.
Which example below is a concern related to nuclear energy?
long-term storage of waste
supplemental energy may be needed if weather is not ideal for energy collection
can be unsightly and/or noisy
potential for floods
Answer:
C. can be unsightly and/or noisy
Explanation:
Answers A, B, and D correspond with fossil fuels (fracking, coal/gas mines), wind/environmentally-powered energy (turbines), and hydroelectric power (dams).
"Noisy" and "unsightly" are the most accurate descriptions of the nuclear energy process.
If this helped you, I'd appreciate Brainliest! <3 TYMitosis makes.....
A. cell phones
B. identical body cells
C. sperm and egg cells
B. identical body cells
hope it is helpful to you
Answer:
B. identical body cells
Explanation:
Mitosis produces new cells, and replaces cells that are old, lost or damaged. In mitosis a cell divides to form two identical daughter cells. ... Mitosis separates these chromatids, so that each new cell has a copy of every chromosome.
What is a mutation?
A. A change that occurs in RNA only
B. A change that occurs in DNA only
C. A change that occurs in DNA or RNA
[tex]\huge\colorbox{purple}A\colorbox{blue}n\colorbox{purple}s\colorbox{blue}w\colorbox{purple}e\colorbox{blue}r [/tex]
[tex]\color{Violet}\rm{Heree!}[/tex]
For me the answer is letter B.
hope it's help✨
__________________________________
“‘The mountains may shift, and the hills may be shaken, but my faithful love won’t shift from you, and my covenant of peace won’t be shaken,’ says the Lord, the one who pities you.” — Isaiah 54:10 ❤__________________________________
Answer:
C. A change that occurs in DNA or RNA
Explanation:
A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.
What is true about the NUCLEUS of a red blood cell and the NUCLEUS of a nerve cell?
A. The DNA found in a red blood cell nucleus is DIFFERENT from the DNA in a nerve cell nucleus.
B. They have HALF of the DNA as other somatic cells.
C. The DNA found in a red blood cell nucleus is the SAME as the DNA in a nerve cell nucleus.
Answer:
c
Explanation:
every cell have the same dna
Answer:
The answer is C
hope this helps
have a good day :)
Explanation:
Read the article and use the information to answer the following questions.
Cystic Fibrosis
List four symptoms associated with cystic fibrosis.
Answer:
so hope it helps i think.
Explanation:
Chronic coughing.
Recurring chest colds.
Wheezing or shortness of breath.
Frequent sinus infections.
Very salty-tasting skin.
Answer: person above is correct
Explanation:
water is warmers by the sun and ?
Answer:and then it evaporates into the atmosphere
Explanation:
What’s an opinion you have about genetic testing?
Answer:
Genetic testing is useful in many areas of medicine and can change the medical care you or your family member receives. For example, genetic testing can provide a diagnosis for a genetic condition such as Fragile X or information about your risk to develop cancer. There are many different kinds of genetic tests
which gland will need to produce hormone after eating banana?
A. pituitary gland
B. thyroid
C. adrenal glands
D. Pancreas
Answer:
thyroid
Explanation:
Right after we eat a sugary meal, the glucose levels in our blood begin to rise. Conversely, if we haven't eaten for a couple of hours our blood glucose levels begin to drop. Our body has a mechanism whereby it maintains blood glucose levels.
The Pearson Correlation Coefficient is a tool used in understanding the behavior of gene expression. A positive ratio means a gene is induced in cancer cells and is transcribed at a higher rate. A negative ratio means a gene is suppressed in cancer cells or is transcribed less frequently than in normal cells. What form of gene expression do you think would lead to a correlation coefficient of one
Answer:
the gene is being expressed at an equal rate in both cell types
Explanation:
In statistics, the Pearson correlation is a linear measure of the association between two continuous variables. The Pearson's Correlation Coefficient may exhibit values between -1 and +1. A value equal to 1 shows a perfect correlation, indicating that when one variable increases the second variable also increases (when this value is +1) or decreases (when this value is -1). Moreover, when the Correlation Coefficient is equal to 0 it means that there is no correlation.
BIO HELP 5 POINTS
The Miller-Urey Experiment:
1) attempted to prove that life on other planets existed.
2) disproved the notion of spontaneous generation.
3) simulated the atmospheric conditions of early Earth.
4) proved that gases could evolve in certain conditions from early rocks
Answer:
2
Explanation:
i think 99.9 percent sure trust me
Red-green color blindness is an X-linked recessive disorder that is passed through generations and can be traced by using a pedigree.
A pedigree is shown. Sam, Bella, Joshua, and Tim have filled-in shapes. Lisa and Monica have half-filled shapes.
Which individuals in the pedigree are identified and labeled carriers for red-green color blindness?
Lisa and Monica
Sam, Tim, Bella, and Joshua
Ben, Jenny, Mike, Carol, Katie, and Chris
Ben and Lisa
Answer:
Lisa and monica
Explanation:
just took the test :))
Because it is ______ , fermentation _______ oxygen.
Answers:
aerobic/requires
anaerobic/requires
aerobic/does not require
anaerobic/does not require
Answer:
anaerobic/does not require
Explanation:
anaerobic occurs in the absence of oxygenHow does mining impact the enviorment
Environmental impacts of mining can occur at local, regional, and global scales through direct and indirect mining practices. Impacts can result in erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by the chemicals emitted from mining processes.
Answer:
Mine exploration, construction, operation, and maintenance may result in land-use change, and may have associated negative impacts on environments, including deforestation, erosion, contamination and alteration of soil profiles, contamination of local streams and wetlands, and an increase in noise level, dust
What will you have in 500 years????
Answer: You Palpatine, I'd still have you.
Explanation: