In which process do the chromosomes line up in a single line in the middle of the cell?
What pigment absorbs sunlight for photosynthesis?
A. chloroplast
B. thylakoid
C. grana
D. chlorophyll
What is the function of the surface protein on the influenza virus?
A To protect
B To attach to a host cell
C To manufacture enzymes using a host's immune system
D To remove a host cells's DNA
Surface proteins are the proteins that are embedded in the cell membrane structure of organisms and help in cell interaction with the outer surrounding or other cells.
Surface protein on the influenza virus is needed for attaching to the host cell.
The surface protein of viruses can be explained as:In viruses, the genetic material is stored in these protein structures called capsids which protects the viral genetic material from degrading enzymes and other cellular enzymatic activities.Surface proteins on the viruses are needed to penetrate and attach to the host system and cells for inducing immune response and diseases.The surface proteins of influenza virus HA and NA are necessary for penetrating host mucus layers.Therefore, option B to attach to the host cell the surface proteins are needed.
Learn more about surface proteins here:
https://brainly.com/question/1102521
Answer:
B to attach to a host cell
Explanation:
If the ocean floor is spreading and Earth is not getting any bigger, where is crust being destroyed?
Crust is being destroyed in earth
Which health effects are concerns for people who get exposed to the low
levels of radiation that might remain in the environment in the years after an
accident at a nuclear reactor?
A. First-degree burns from thermal pollution
B. Exposure to parasites that can attack the digestive system
C. Respiratory diseases resulting from air pollutants
D. Thyroid cancer and other cancers
a
Answer:
D. Thyroid cancer and other cancers
Explanation:
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How the disease Diabetes challenges our body’s ability to maintain homeostasis.
Answer:
diabetes is bad diseases that causes you to eat less sugar
The substance that are present before any chemical reaction are called
Dioxides
Oxygen
Products
Reactants
HELP ASAP
what is a tool that shows phenotypes of genetically related family members
Answer: A Tool that Shows Phenotypes of Genetically Related family Members, Are A pedigree.
Explanation:
The description of a trait through gene expression (long hair, black fur, short tail) is called an organism's _______________.
Answer:
Phenotype.
This is what is expressed on the "outside" of the organism
Help me describe how these protists feed, move, and reproduce.
A plant-like protist
A fungus-like protist
Ciliophoran
Zooflagellate
Sarcodinian
Sporozoan
Explanation:
Protists are mostly one-celled organisms. Some make
their own food, but most take in or absorb food. Most
protists move with the help of flagella, pseudopods, or
cilia. Some protists, like the one-celled amoeba and paramecium, feed on other
organisms.
Fungus-like protists share many features with fungi. Like fungi, they are heterotrophs, meaning they must obtain food outside themselves. They also have cell walls and reproduce by forming spores.
Ciliates reproduce asexually by division: the micronucleus undergoes mitosis, while in most ciliates the macronucleus simply pinches apart into two. This process is shown in the drawing above. However, ciliates also reproduce sexually, through a process known as conjugation. Conjugation is often induced by lack of food. Two ciliates of opposite mating types come close together and form a cytoplasmic bridge between the two cells; the micromuclei divide by meiosis, the macronuclei disintegrate, and the conjugating cells exchange haploid micronuclei over the cytoplasmic connection. They then separate, reform new macronuclei from their micronuclei, and divide, but remember that the essence of sexual reproduction is forming a new organism from the combined genetic material of parents. After conjugation, each ciliate partner has acquired new genetic material, and divides to give rise to progeny with a new combination of genes. This is essential to the survival of ciliate lineages; most ciliates cannot reproduce indefinitely by asexual fission, and eventually die out if prohibited from conjugating.
One convenient way to categorize protozoans is by how they move. Some move rapidly, while others creep slowly. Still others are not capable of active movement at all, but instead rely on a host organism to supply their food.
Protozoans With Flagella
Zooflagellates (zoh oh FLAJ uh lits) move by means of one or more flagella. (Recall from Chapter 6 that flagella are long, thin, whip-like cellular projections.) Zooflagellates generally reproduce asexually by binary fission. Recall that asexual reproduction results in genetically identical offspring.
Sarcodines reproduce sexually by syngamy (fusion of two gametes) and asexually by division or budding. In multinucleate forms, cytoplasmic division with distribution of the nuclei occurs.Members of the phylum Sarcodina are ameboid. They move about by using pseudopods and usually eat by phagocytosing food particles, usually bacteria. Some amoeba form calcium carbonate or silica skeletons called tests to protect themselves.
The sporozoans are able to form spore-like cells, from which they get their name. Sporozoans do not have flagella, cilia, or pseudopodia. They are capable of gliding movements. ... The apical complex secretes enzymes which allow the sporozoan to enter a host cell.Apicomplexan, also called sporozoan, any protozoan of the (typically) spore-producing phylum Apicomplexa, which is called by some authorities Sporozoa. ... Apicomplexans feed by absorbing either dissolved food ingested by the host (saprozoic nutrition) or the host's cytoplasm and body fluids.Protozoa reproduce asexually by fission, schizogony, or budding. Some protozoa can also reproduce sexually. Relatively few protozoa cause disease
Cystic Fibrosis is a genetic disease of the lungs caused by a recessive allele. A man with Cystic Fibrosis marries a woman who does not have Cystic Fibrosis, but her father had the disease. What is the probability of the couple having a child that has Cystic Fibrosis?
Answer:
If only one of you is found to be a carrier, the chance that you will have a child with CF is very low, although not completely eliminated. If you are both carriers, each pregnancy will have a 1 in 4, or 25 percent chance of being affected with cystic fibrosis.
How, do humans use mineral and
Energy resources?
A. Environmental protection
B. To build machinery
C. Industrial purposes and crop
irrigation
D.
To discover new elements
Use the illustration below to answer this question. What is the name of the
cellular structure labeled "X"?
CSD
O Chloroplast
O Mitochondria
O Lysosome
O Central Vacuole
What part of a flowering plant develops into a seed after fertilization has taken
place? The diagram shows this at # 4.
Answer:
The ovules would develop into a seed after fertilisation. #4 is pointing to it
Part B
How did you determine the types of cell division for both phases depicted in your model? Explain your answer.
Answer:
Cell division is a process that makes our skin, tissues, muscles, sex cells. It is the building block of our body.
Explanation:
When parents cells ahs been divided into two or more than two daughter cells then it is called division of cells. The division of cells occur as a larger cell. When we talk about eukaryotic cells, these cells divided into two distinct types of the cells, the vegetative cells.
The daughter cells are the identical to the parents cells genetically. There are two types of division such as mitosis and meiosis. When parents cells divides in daughter cells and daughter cells divided further, this process called the cells cycle. The mitosis cell division occur interphase. Meiosis cell division occur in two phase meiosis I and meiosis II.
How is active transport different from simple diffusion and facilitated diffusion?
Answer:
Active transport is when substances move against the concentration gradient and go from low to high. Diffusion is when substances move with the concentration gradient and go from high to low.
Explanation:
Figure 1 shows red blood cells that have been placed in isotonic, hypotonic, and hypertonic solutions. Osmotic pressure causes changes in the red blood cells. Determine which type of solution is in A, B, and C and describe what is happening to the cells.
8. What is the sex (gender) of this karyotype?
Answer:
male
Explanation:
because XX= female and XY = male you determine the gender in the last karyotype or however you spell it
Consider the way living things are organized. What are the two levels of organization just after atoms? (5 points)
Tissues and organs
Molecules and cells
Organs and organ systems
Organ systems and organism
Answer:
Molecules and cells
Explanation:
Tissues and organs are too large to be right after atoms, along with organs and organ systems, and organ systems and organisms, leaving molecules and cells as your answer.
BRAINLIEST PLEASE HELP ASAP NOW IMEDIATLY!!!!!!! ITS DUR RIGHT NOW!!!
How do minerals impact our daily lives? How are minerals used? Give three examples.
Answer:
Iron, manganese, selenium, and calcium all provide day-to-day nutrients that body needs in order to function. Foods that are full of micronutrients can help strengthen cells, fight against harmful viruses, and boost the immune system.
A train car is to train as a __ is to a polymer.
a. polymerization.
b. monomer
c. polypeptide.
d. protein.
Answer:
Answer is B monomer as multiple monomers makes up polymers
What are spring tides called (high tides or low tides)
Answer:
Spring tides have higher high tides and lower low tides
so spring tides or low and high just more extreme in either direction
What makes all of the samples different from each other?
what is the result of water flowing down gently sloping land?
High energy or low energy
Answer:
i belive its low energy
Explanation: If the water is sloping the land gently its not using much energy.
Please help!!! I don't know how to tell if they self pollinate or not.
Answer:
The first flower can self pollinate because it is open, so the wind will pollinate it.
Explanation: Flower b will not self pollinate because it is not open, so it will not pollinate until a bird or moose or any other animal comes and eats it, then poops it out, so the seeds get planted.
Help quick
Which of the following processes describes how a volcano forms at oceanic oceanic and oceanic
continental plate
boundaries
Answer:
Continetnal Plate
Explanation:
I hope this helps :)
Answer:
Continetnal Plate
Explanation:
i hope this is correct
Use the diagram below to answer the question. Raw Eggs in Two Samples of Water salt water fresh water The diagram shows a raw egg placed in salt water and a raw egg placed in fresh water. Which characteristic of water is demonstrated in the diagram? a Salt water is cleaner than fresh water. b Salt water is more dense than fresh water. с Salt water has a lower temperature than fresh water. d Salt water has less electrical conductivity than fresh water.
Answer:
b.Salt water is more dense than fresh water is your answer.
Which is an appropriate tool for viewing small organism
Answer:
A microscope would be the best tool for viewing small organisms.
Explanation:
The microscope can zoom into many tiny organism including cells, if you were looking for a specific type...
The light microscope and electron microscope are the best for viewing the tiniest of objects.
When your cells use fat for energy, the fatty acids are broken up into molecules of acetyl CoA. Predict how many ATP can be made from one molecule of acetyl CoA if oxygen is present. Show your work.
Answer: Suppose that each fatty acid in a certain fat can make 9 molecules of acetyl CoA. Predict how many ATP can be made from the fatty acids in this fat. This would make 27 acetyl CoA, and therefore would make 27 ATP
Explanation:
______ tend to effect the whole body.
A. Phototoxins
B. Endotoxins
C. Myotoxins
D. Exotoxins
Answer:
endotoxins
Explanation:
because they are inside of the body