Answer:
No, organisms such as humans are omnivores, meaning they can eat both meat and plants and may act as 1st, 2nd or 3rd level heterotrophs.
A current problem in modern medicine is the development of drug resistance mutations. This occurs when a mutation arises in a disease-causing microbe making it resistant to a drug and thus rendering the drug useless in treating a specific disease. Many useful drugs are competitive inhibitors of specific enzymes, and the drug-resistance mutations prevent the binding of the drug. These types of mutations, in addition to preventing competitive inhibitor binding, can also sometimes reduce the activity of the enzyme. Why is that the case?
a. Binding to the competitive inhibitor is essential for the function of the enzyme.b. These mutations most likely affect an allosteric site on the enzyme.c. These mutations lower the activation energy of the reaction catalyzed by the enzyme.d. These mutations most likely change the shape of the active site of the enzyme.
Answer:
d. These mutations most likely change the shape of the active site of the enzyme.
Explanation:
A competitive inhibitor competes with an enzyme substrate for the binding of the enzyme. When it binds, the enzyme substrate cannot bind unless the inhibitor is removed from the active site by some mechanism.
The ability of a competitive inhibitor of an enzyme to function is due to the fact that these inhibitors are structurally similar to the enzyme's substrate.
So when a mutation which also affects the activity occurs in a microbe, that renders it resistant to a drug serving as a competitive inhibitor of that enzyme in the microbe, most likely, this resistance is due to a structural change in the enzyme which changes the shape of the enzyme's active site. Therefore, both the drug as well as the enzyme's substrate, will be unable to bind to the enzymes active site.
Food web:
1. Hawk
2. snake
3. mouse
4.grass
suppose 10,000 units of energy are available at the level of the grasses. What is the total number of energy units lost by the time the energy reaches the hawk? How did you get your answer?
(Please help me!)
GREETINGS!
10 units of energy because in food chain the energy is lost and this energy loss is 90% at each trophic level so only 10% of energy is passed soo if grass has 10000 energy units mouse will have 1000, snake will have 100 and then hawk will have only 10 units
HOPE IT HELPS YOU
In a food web, which type of organism receives energy from every other food type?
Answer:
Decomposer
Explanation:
<3
Answer:
Called
Explanation:
Heterotrophs Meaning:
A heterotroph is an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are primary, secondary and tertiary consumers, but not producers.
I want both of these answered for brainliest
Answer:
A. exactly one solution
B. infinite many solutions
C. no solution
Page 2:
x = 3
Explanation:
damage to which structure will most disrupt water balance within a single-celled organism
Answer:
cell membrane
Explanation:
Is the height of a wave measured from its midline
What does it mean????
Medical researchers often test medicines on patients who have given informed consent for the tests. The researchers divide the patients into two groups. One group is given the medicine. The second group is given a harmless substitute such as sugar pills. Neither the patients nor the researchers know which patients have received the medicine and which have received the substitute.
Answer:
The question is incomplete, below is the completed question:
Medical researchers often test medicines on patients who have given informed consent for the tests. The researchers divide the patients into two groups. One group is given the medicine. The second group is given a harmless substitute such as sugar pills. Neither the patients nor the researchers know which patients have received the medicine and which have received the substitute. What is the purpose of such a procedure?
to increase accuracy
to increase precision
to decrease bias
to decrease patient safety
Answer:
The correct answer is:
to decrease bias
Explanation:
This kind of experimental setup where a group of participant is given a non-medical treatment is known as a double-blinded placebo experiment. The principle of the use of a placebo is to reduce biases. Biases are influences that may affect the result of an experiment that does not arise from the effect of the treatment itself, but from some external factor. The researcher and the subject do not know which treatment is a 'sham', and which treatment is the real treatment, it helps to make approach neutral and rules out any effect of manipulations that may affect the result as a result of such knowledge.
Answer:
to decrease bias
Explanation:
Help please! (physical science)
Answer:
A. yellow perch and striped bass
What is a carbon reservoir and what are some examples?
Answer:
Carbon is in a constant state of movement from place to place. It is stored in what are known as reservoirs, and it moves between these reservoirs through a variety of processes, including photosynthesis, burning fossil fuels, and simply releasing breath from the lungs.
Examples-Rocks like limestone and fossil fuels like coal and oil are storage reservoirs that contain carbon from plants and animals that lived millions of years ago.
Explanation:
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Crown me as brainliest:)
Write the complimentary DNA strand for: ATGGCC
Answer:
TACCGG
Explanation:
Recall that in DNA, there are two pairs, A goes with T and G goes with C, therefore the complimentary strand for ATGGCC is TACCGG.
What two parts of cell are involved in cellular respiration
Answer:Most of the steps of cellular respiration take place in the mitochondria.
Oxygen and glucose are both reactants in the process of cellular respiration.
The main product of cellular respiration is ATP; waste products include carbon dioxide and water.
hope this helped!
Fasttttttttttttttttttttttttttttttt 15 points
Answer:
A. Sound has longer wavelengths than light waves.
PPLLLLLZZZZ HELP
Describe the major events in the cell cycle. Begin at G1 and follow around the cycle through M
Answer/Explanation:
The cell cycle consists of interphase and mitosis (M). Within interphase, there are three phases: G1, S, and G2.
G1 phase - the first 'gap' phase.The cell grows in size, and synthesises the necessary mRNA and proteins required to divide. This is also where the key decision as to whether the cell will divide takes place. This is based on whether or not the environmental conditions are favourable for division and whether the cell is receiving the correct signals to divide. This is called the G1/S transition, and is the critical decision making point as to whether the cell cycle will progress.
S phase - the 'synthesis' phase. The cell replicates its DNA in preparation for passing the genetic material onto the daughter cells. Once the cell's DNA is replicated, it enters G2.
G2 phase - the second 'gap' phase. The cell continues to grow in size and prepare for mitosis. There is a DNA damage checkpoint here, where the cell ensures that the DNA has properly replicated. Next, it moves into mitosis (M).
M phase - the mitosis phase. This consists of 4 stages (PMAT) - prophase, metaphase, anaphase, telophase. The cytoplasm divides during cytokinesis
During prophase the chromosomes condense and pair up. The mitotic spindle forms, and the nuclear membrane disappears. During metaphase, the chromosomes line up at the centre of the cell - at the metaphase plate. The mitotic spindles attach to the chromosomes - to each sister chromatid.During anaphase, the sister chromatids are pulled apart to opposite poles of the cellDuring telophase, two new nuclei form, surrounding the two new sets of chromosomes. Cytokinesis then occurs, pinching the membrane to create two new cells.which of the following is the large bone found inside the hoof?
A. navicular bone
B. short pastern bone
C. long pastern bone
D. coffin bone
Answer:
D: Coffin Bone
Explanation:
8. Which activity is an example of a chemical change?
a)dissolving table salt in water
b)hammering aluminum into thin sheets
c)melting gold to make jewelry
d)burning wood to produce ashes
the phosphate group are the polar part of phospholipid because they are what??
Answer:
A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails. ” The phosphate group is negatively charged, making the head polar and hydrophilic, or “water loving.”
what type of skills might be important in the field?
Answer:
good leadership, good copanisonship, and good working skills
Explanation:
explain how gravity will affect the growth of the plant's stem and roots
Answer:
Plants respond directly to Earth's gravitational attraction, and also to light. Stems grow upward, or away from the center of Earth, and towards light. Roots grow downward, or towards the center of Earth, and away from light.
Explanation:
Please help me!!!!!!!
Answer:
13) convergent
14)divergent
15)fault
Explanation:
What do you call the basic unit of storage for computer
Answer:
A File?
Explanation:
Which three processes happen as a multicellular organism grows?
A. Its cells take in water and nutrients
B. The amount of DNA in its body cells decreases
C. Its cells get larger in size
D. The number of cells in its body increases.
Answer:It is C D and A
Explanation:
Answer: C, D, and A
Explanation:
A group of organisms of the same species living together in a particular place is called ____?
Answer:
Population
Explanation:
common sense ig
I need a sentence describing how volcanoes are created around the Ring of Fire. Using
all of these terms: convection current, subduction zone, plate boundary, oceanic plate, water, magma, and volcano.
Need Help ASAP!!
Answer:
the ring of fire was when the plate boundarys collided. this caused the oceanic plates to rise above the water. the convection and current cause the subduction zone to make a volcano and magma.
Explanation:
The ring of fire was caused by the collision of the plate boundaries. As a result, the oceanic plates moved upward, until they were above the water. Both convection and current are responsible for the formation of a volcano and magma in the subduction zone.
What is a volcano?A breach in the crust of a planetary-mass object, such as the Earth, can give rise to the formation of a volcano. This rupture makes it possible for molten lava, volcanic ash, and gases to escape from a magma chamber located under the surface. Volcanoes are most common on Earth at locations where two or more tectonic plates are moving in opposite directions, and the majority of volcanoes are found deep within the ocean.
Volcanic rock and ash make farmers' crops grow better. The volcano attracts tourists, boosting the local economy. Locals get free electricity from geothermal energy.
Learn more about volcanoes, here:
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Which type of digestion takes place when chunks of food are physically torn into smaller pieces?
A.) Absorption
B.) Chemical
C.) Elimination
D.) Mechanical
Answer:
a
Explanation:
digestion takes when breaking food in to smaller pieces is absorption
PLZZ HELP! I will give brainliest
Answer: Ok then give it to me. ha
Explanation: u
What does age of maturity refer to?
Answer:
Coming of age, a very young person's transition from childhood to adulthood. Age of majority, the threshold of adulthood as it is conceptualized (and recognized or declared) in law. Puberty, the process of physical changes by which a child's body matures into an adult body capable of sexual reproduction.
Explanation:
Answer: The age of maturity refers to the change from childhood to adulthood.
Explanation: This means that a child is taking its first step into being an adult. Usually, this first happens during the process of puberty. Puberty occurs when you’re around 12 years of age. This is when your body starts to change into a more stronger, mature adult body.
Which practice is an unsustainable way of managing resources?
A. Using renewable energy resources that generate no waste
B. Using grocery bags only once before disposing of them
C. Using household appliances that consume energy efficiently
D. Recycling nonrenewable minerals instead of throwing them away
Answer:
[tex]\boxed {\tt B. \ Using \ grocery \ bags \ only \ once \ before \ disposing \ of \ them}[/tex]
Explanation:
Let's analyze the answer choices. Remember we are looking for an unsustainable option.
A. Renewable energy is a great sustainable practice because it doesn't produce waste.
B. Using grocery bags once is not sustainable. Single use plastic is not good for the environment because it is used one time and then thrown out.
C. Energy efficient appliances are sustainable. They don't consume as much energy.
D. Recycling is always an environmentally friendly option. It allows some materials to be used again.
The choice that is not sustainable is B. using grocery bags only once before disposing of them.
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Answer:
Oi, sou br sou br sou br
ESPERO TER AJUDADO VC
Ariana says, “Did you know water is hard”? What do you think she means?
During which phase in the cell cycle does mitosis happen? *
Answer:
M phase
Explanation:
During the first phase, the cell grows and prepares for DNA replication, which occurs in the subsequent s phase. Further growth takes place in the G2 phase, and finally mitosis occurs in the M phase.