Answer:
Mitosis
Explanation: Mitosis is a method of cell division in which a cell divides and produces identical copies of itself. The primary mechanism by which organisms generate new cells is through cell division. During this process, a single "parent" cell will divide and produce identical "daughter" cells.
what is referred to as the ocean desert because few life exist there
In 1937, a man employed to lay water pipes was found to be the source of a severe epidemic of typhoid fever. The man, an asymptomatic carrier of Salmonella enterica serotype Typhi, the bacterium that causes typhoid, habitually urinated at his job site. In the process, he contaminated the town’s water supply with bacteria from his bladder. Over 300 cases of typhoid fever developed, and 43 people died before the man was identified as the carrier.
Given that antibiotics were not generally available in 1937, how could health officials end the epidemic, short of removing the man from the job site?
Answer:
They could lay new water pipes.
A recessive allele is: hidden if present with a _____ allele; or visible if present with a _____ allele.
Group of answer choices
dominant, recessive
recessive, dominant
dominant, dominant
recessive, recessive
Answer:
recessive, recessive
A recessive allele is hidden if present with a dominant allele, or visible if present with a recessive allele.
What do you mean by Allele?An Allele may be defined as one or two or more alternate forms of a given gene.
A recessive allele is masked when present with a dominant allele, while it may express when present in a purebred recessive condition.
Therefore, a recessive allele is hidden if present with a dominant allele, or visible if present with a recessive allele.
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Which of these situation would tend to cause absorption of the largest amount of solar energy
A.Sunlight striking red desert soil in western africa
B..Sunlight striking sea ice near Greenland
C..Sunlight striking brown forest soil in southern russia
D..Sunlight striking the North Atlantic Ocean
APEX
Answer:
A. Sunlight striking red desert soil in western africa
Explanation:APEX
Heston took a walk in the forest. He noticed that most every tree was missing bark, limbs and leaves from the ground up to the height of an average deer. He also observed that the woods had a minimum amount of young small trees. THe forest grond had neglible amount of vegetation. As Heston walked through the woods, deer fooprints and droppings were commonly noticed. Heston also noticed that he did not observe the presence of bird's nest. AS Heston was leaving the woods, he saw four deer stripping bark off one of the last healty looking trees. What kind of inferences can Heston make based on his observations in the forest?
a
The deer population was scarce in the forest
b
The squirrel population was common in the forest
c
The predator population was overpopulated in the forest
d
Deer population was above carrying capacity in the forest
Answer:
c . The predator population was overpopulated in the forest
Explanation:
As per the condition mentioned in the observation, it can be concluded that the predator population was overpopulated in the forest.
Predators are the organisms that kill and eat another organism, its prey. In the given observation deer and squirrel are the predators that are overpopulated in the forest.
Because of the overpopulation of deer, most of the trees have missing bark, limbs, and leaves and due to the overpopulation of squirrel, birds are unable to nesting as they attack the eggs of birds.
Hence, the correct option is "c".
The study of energy and the work being done in systems such as an ecosystem is called
Question 1 of 10 Which expressions give the monthly pay of an employee with 42 hours of training? O A. 42 x pay or 42 xp B. 42(pay) or 42(p) O C. Hours(42) or H(42) O D. Pay(42) or P(42)
Answer: pay(42) or P(42)
Explanation:
A 17-year old girl was admitted to the hospital with a 1-week history of fever, chills, malaise, sore throat, skin rash, and polyarthralgia. She reported being sexually active and has a 5-week history of a profuse yellowish vaginal discharge, which was untreated. Upon presentation, she had erythematosus maculopapular skin lesions over her forearm, thigh and ankle, and her metacarpophalangeal joint, wrist, knee, ankle, and midtarsal joints were acutely inflamed. She had an elevated leukocyte count and sedimentation rate. Cultures of her cervix were positive for N. gonorrhoeae, but blood specimens, exudates for the skin lesions, and synovial fluid were all sterile.
Why were the synovial fluid cultures negative?
a. This organism cannot be cultured on artificial media
b. The arthritis is a non-suppurative sequala
c. The organism is difficult to recover from synovial fluid beyond the first few days of inflammation.
d. It should have grown. The lab made a critical mistake.
e. It should have grown. The nurse mislabeled the sample.
Answer:
C. The organism is difficult to recover from synovial fluid beyond the first few days of inflammation.
Explanation:
why not A
The organism N. gonorrhoeae can be cultured on Thayer Martin Agar( a selective medium used for the isolation of gonococci (Neisseria gonorrheae) from specimen containing a mixed flora of bacteria and/or fungi), from following
I.urine samples,
II. urethral swab
III.orcervical swab.
therefore A is wrong
Why not B
Arthritis is both suppurative (infectious) as well as non- suppurative.
Why C
The organism is very difficult to recover from synovial fluid, but the presence of immune cells confirms the gonococci in the fluid.
Chromosomes move to opposite poles during anaphase because microtubules shorten at the centrosome, pulling the chromosomes which are anchored to the other end.
Group of answer choices
True
False
Answer:
false
Explanation:
i just want to help
Do you know what."prey" waits for it's own slaughter?
Answer:
Sheep
Explanation:
Idk why but they do
Answer:
prey means something week to the pray is waiting to get killed aka slaughtered by a praetor something stronger.
Explanation:
PLEASE MARK BRAINLYEST
23. Macromolecules containing large amounts of hydroxyl groups (-OH) have less potential energy than molecules that are largely hydrocarbons, which of the following best explains why?
a) Carbon – Hydrogen bonds are short and very strong
b) Carbon – Hydrogen bonds are long and comparatively weak
c) Oxygen – Hydrogen bonds are long and comparatively weak
d) Hydroxyl groups are easily removed in enzyme-catalyzed reactions
Answer:
b) Carbon-Hydrogen bonds are long and comparatively weak
Explanation:
Carbon-Hydrogen bond is a covalent bond between a carbon and hydrogen atom in which carbon shares its valence electrons with four hydrogen atoms.
Carbon-Hydrogen bonds are long and carbon-hydrogen combine together to form several long chain organic comounds such as methyl, ethyl, isopropyl, and benzyl etcetera but are comparatively weak.
Electronegativity affects the bond stregth of the hydrogen bond and there is small difference in electronegativities of the Carbon-Hydrogen that makes it comparatively weak.
Hence, the corrrect answer is "b) Carbon-Hydrogen bonds are long and comparatively weak".
What are the basic building blocks of matter?
a. elements
b. atoms
c. molecules
Answer:
b. atoms
Explanation:
The cell in the diagram is part of what sort of tissue?
Answer:
Tissue is a group of cells that have similar structure and that function together as a unit. Primary types of body tissues include epithelial, connective, muscular, and nervous tissues. Epithelial tissues form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands.
Explanation:
pleaseee help me its due today
Answer:
probably A
Explanation:
What percentage, on average, of living plant biomass on land is consumed alive by herbivores?a. More than 75% b. 50% c. 25% d. Less than 10%
Answer: D. Less than 10%
Explanation:
Herbivores consume no more than 10% of living plant biomass.
Hope this helps!
What are the main differences between plant and animal cells?
A. plant cells are eukaryotes and animal cells are not.
B. Animal cells are eukaryotes and plant cells are not.
C. Plant cells have cell walls and chloroplasts, animal cells do not.
D. Animal cells have cell walls and chloroplasts, plant cells do not.
Answer:
C. Plant cells have cell walls and chloroplasts, animal cells do not.
Answer:
Major structural differences between a plant and an animal cell include: Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.
refer to the figure below to answer the following question layer j is deposited on a _______?
which sentence is an example of how a scientist might use a model?
Answer:
the answer is the end of a slinky is moved vertically up and down to simulate a wave
Explanation:
I took the test
Why does a dissolved substance reduce the number of free water molecules in a solution?
Answer:
Dissolved substance...
Explanation:
It is because when something dissolves it takes the place of a molecule because energy and not be created nor destroyed, including the energy in the substance that is now in a different form, therefore the more it dissolves the less water molecules there are gonna be
BIOLOGY HELP!! which match the correct choices having hard time understanding
plz help asap..Consider this statement: Earth is the only source of gravity in the solar system. Do you agree? Give your reasons.
Answer:
false
Explanation:
This cannot be true because other planets, Earth included orbit the sun witch would have to emit its own gravity
Fruits ripen due to an enzyme converting starch into sugar. Keeping fruits
in the refrigerator slows this process. Which sentence explains why?
Enzymes are solar-powered, they
convert light energy into chemical
energy, which they hand down to
their substrate. The refrigerator is
dark once the doors are closed the
enzymes won't get enough energy.
The enzyme converting starch into
sugar catalyzes the reaction at 20°C
(room temperature) and the reaction
rate decreases at lower
temperatures.
The enzyme converting starch into
sugar switches substrates at lower
temperatures and then starts
catalyzing another unrelated
substrate.
The reaction rate is constant
regardless of the temperature, but
the concentration of starch decreases
at lower temperatures.
Answer:enzyme converting starch into sugar catalyzes the reaction at 20 C and reaction rate decreases at lower temperature
Explanation:
The enzyme converting starch into sugar catalyzes the reaction at 20°C (room temperature) and the reaction rate bat lower temperatures. So, the correct option is (B).
What is an Enzyme?Enzymes are defined as proteins which act as biological catalysts by accelerating chemical reactions. The molecules it can act on are called substrates, and the enzyme converts the substrates into different molecules known as products.
Enzymes perform different functions in the body like
Enzymes help speed up chemical reactions in the human body.It is essential for respiration, digesting food, muscle and nerve functions, among thousands of other roles. There are thousands of enzymes in every cell of the human body. These help facilitate chemical reactions within each cell.Fruits containing starch is converted into sugars by the enzyme called as Amylase when put in the fridge.
Thus, the enzyme converting starch into sugar catalyzes the reaction at 20°C (room temperature) and the reaction rate bat lower temperatures. So, the correct option is (B).
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Which of the following is true about pure substance?
Answer:
A pure substance can only be made up of one kind of atom
Answer:
A pure substance can only be made up of one kind of atom OR one kind of molecule!
explanation:
took the test
where does carbohydrate production occur in a chloroplast?
A. in the cytosol
B. in the stroma
C. in mitochondria
D. in the thylakoid
Help please this is due soon so I need someone’s help
Answer:
uovay liioln te mostav ju gobo lavn mas decij jiha milak te powin lasf
Explanation:
Answer:
the answer should be D lipid
The correct order of stages of cellular respiration is
(a) glycolysis - the Calvin cycle - electron transport.
(b) the light reactions - glycolysis - the Krebs cycle.
(c) glycolysis - the Krebs cycle - electron transport.
(d) electron transport - glycolysis - the Krebs cycle.
George is a healthy 28-year-old man. He enjoys an active lifestyle, including playing on an intramural Ultimate Frisbee team. Last weekend, while at a meet, George got a cut on his leg, just above the knee. It wasn’t very deep, and he cleaned the wound thoroughly when he got home. A few days later, the cut didn’t seem to be healing as George would have expected. It was a little sore, and he was worried that it might have been infected, so he decided to go his local outpatient clinic to have it examined. At the clinic, Dr. Smith examines the wound. He tells George that it looks like it might be infected, so he prescribes a broad-spectrum antibiotic, tells George to keep the wound clean, and sends him home. Over the next week, George becomes concerned when the wound doesn’t get any better—in fact, it starts to get worse. The affected area has become larger, and it is sorer than it was earlier.
Required:
What do you think is responsible for the infection knowing that antibiotics have been used?
Answer:
The correct answer is - staphylococcus aureus
Explanation:
A broad-spectrum antibiotic is an antibiotic used to treat the infection or kill the two major groups of the bacteria; gram-positive and gram-negative bacteria.
Staphylococcus aureus is a bacteria that is more resistant to commonly prescribed antibiotics by doctors. These bacteria are more adaptive so as the given information it is possible that George's wound is infected with a resistant strain of Staphylococcus aureus such as methicillin-resistant Staphylococcus aureus (MRSA) strains.
The human body contains about 5 liters of blood. The liquid portion of the blood is called ____________________________________________and makes up about 55% of the blood volume. The rest of the blood is made up of the formed elements
Answer:
The liquid portion of the blood is called Plasma
Answer: Plasma
Explanation:
Blood plasma is a yellowish liquid component of blood that holds the blood cells of whole blood in suspension. It is the liquid part of the blood that carries cells and proteins throughout the body. It makes up about 55% of the body's total blood volume
what type of circulation is described by the blood through thee tissues of the heart
Answer:
Explanation:
systemic circulation.
This is a type of mushroom called a cremini.
Which is a physical characteristic of this mushroom?
It is needs moisture to grow.
It is can be used for cooking.
It is a living orgnaism.
It is a light brown color.
Answer: The answer is that it is a light brown color.
Explanation: because if you seen that mushroom you would
know that the cremini mushroom is indeed light brown so that
would give you an easy answer choice so that is why answer choice (d.)
is correct
Please give branliest thank you.
have a great day.
