Answer:
Km is the Michaelis-Menten constant which shows the concentration of the substrate when the reaction velocity is equal to one half of the maximal velocity for the reaction. It can also be thought of as a measure of how well a substrate complexes with a given enzyme, otherwise known as its binding affinity.
What is one defining feature of a prokaryotic cell?
A.cytoplasm surrounds organelles
B.have a cell wall outside plasma membrane
C.organelles are not membrane-bound
D.membrane-bound organelles
Answer:
B. have a cell wall outside plasma membrane
Explanation:
I love memorizing articles on subjects I enjoy to help answer and solve questions like these, this one is from bio.libretexts.org, and I really hope it can help:
"The Prokaryotic Cell;
They do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid. Most prokaryotes have a cell wall outside the plasma membrane."
Have a nice day! :)
Which statement summarizes the information in the table
Disadvantages of a light microscope against electron microscope
electron microscope have a range of disadvantages as well:
. they are extremely expensive
. sample preparation is often much more elaborate......
. the sample must be completely dry.
. it is not possible to observe moving specimens ( the are dead)
. it is not possible to observe colour.
difference between valley and plateu
Answer:
A valley is a landforms carved by a river where as a Plateu is carved via wind
Pls help i dont understand :( will give Brainliest + 25 points!!
Answer:
competition
Explanation:
because one die and the other lives
No explanation needed
Gregory Mendel work was different from that of other researchers working in inheritances in his day because he alone
Answer:
Most scientists believed that heredity material blended together in offspring, however, Mendel did not. he believed that an organism inherits one gene from each parent and that some alleles are dominant over others. This would mean that they would show up in the phenotype of an organism.
Explanation:
Hope this helps :)
Answer: Gregory wrote a research paper for his English class. His first step was to choose a topic Then he found some background information about his topic. Next, he began looking for relevant sources. He then evaluated them to check their reliability.
Gregory began to write his paper. He used evidence from his research to back up his arguments. Finally, he cited the sources he used.
Explanation:
source: trust me bro
I WILL GIVE BRAINLIEST Pretend you're riding the bus to school on a very cold and snowy day. List 3 different phases changes you might see along the way.
While riding the bus to school on a very cold and snowy day three different phases changes you might see along the way are mentioned below:
1. precipitation(the snow falling)
2. evaporation(water turning into vapor)
3. melting(snow turning the water)
What is precipitation, evaporation, and melting?Evaporation is the process in which liquid changes in vapour or gas and it can be easily observed during hot summer days when there is raining and when wet clothes dry in the presence of sunlight. Evaporation is directly proportional to temperature and when rate of evaporation increases the temperature also increases.
Precipitation is the water that is falling from the sky and it occurs when a portion of atmosphere becomes saturated with water vapour.
Melting is the process in which solid is converted into liquid like ice cube converted into liquid water and this is one of the example of melting.
Therefore, the mentioned below are three phases changes :
1. precipitation(the snow falling)
2. evaporation(water turning into vapor)
3. melting(snow turning the water)
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when a plant is limp ot has lost its water tehough ______if you water ir ir should perk up
Answer:
A Pothos is what the plant is called
The tropical rain forest biome has some of the highest biodiversity on earth how would a decrease in the biodiversity due to deforestation or other factors affect the large biosphere
Answer:
Negatively.
Explanation:
A decrease in biodiversity can cause a large chain reaction within the ecosystem. A loss of species can be detrimental, especially if they're key stone species. This negative impact can cause the food chain to be disrupted which ends up affecting every organism within the environment. Every organism plays a role within the ecosystem and when one or more are removed it causes extreme disarray.
The decrease in biodiversity due to deforestation and other factors in the tropical rainforest biome will negatively affect the biosphere. Thus, the effect will be negative.
What is the biosphere?The biosphere also called the ecosphere is the sum of the total life or the ecosystem. It includes the part of the planet where life is inhabitants. It may include a mountain, roots, dessert, oceans, etc. It is interrelated to biodiversity.
If the biodiversity of a place gets declined due to factors like deforestation, pollution, poaching, natural disasters, etc. then it will affect the ecosystem. If the stone species are lost then it will have a detrimental effect on the ecosystem.
These negative consequences disrupt the food chain and will result in affecting every organism. This chain of disruption will cause an overall loss to the biosphere.
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Help pls i rlly need it?
Answer:
CELL NUCLEUS!!!
Explanation:
Which best defines genes?
Which of the following activities occurs in BOTH prokaryotic and eukaryotic cells?
Answer:
Cellular Respiration
Explanation:
Both prokaryotic and eukaryotic cells get the energy they need through the process of cellular respiration.
Hopefully this helps! :)
Can a person keep a ringneck dove and a diamond dove together?
Answer:
Ringnecks and diamond doves can be kept as pets in a variety of ways. They can be a single bird, bonded to its owner with or without free flight within the home, or they can be a breeding pair, bonded to one another, producing young
DNA and protein together form a complex called
Answer:
chromatin!
Explanation:
Tyson draws a model to show how the particles in a liquid appear.
1
2
Which model (or models) above could be Tyson's drawing of particles in a LIQUID?
O model 1 and model 2
O model 1
O model 1, model 2, and model 3
O model 3
Me
A liquid is rightly modeled by the diagram in model 1.
States of matter:There are three states of matter which are;
SolidLiquidGasParticle motion in the states of matter:The degree of motion of particles in the three states of matter differs. The particles of matter in a solid are compacted hence a solid has no space between particles. Particles are less compacted in the liquid phase but are very free in the gas phase.
Hence, model 1 must be the correct representation of a liquid.
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12. Compare and Contrast the relationships between the speed of electromagnetic
and mechanical waves as they travel through different mediums. YOU must
write at least 8 sentences.
Answer:
Compare and Contrast the relationships between the speed of electromagnetic and mechanical waves as they travel through different mediums is explained below in details.
Explanation:
As per the mechanism, the waves can be distinguished as electromagnetic and mechanical waves. Electromagnetic waves are those fluctuations that have no mechanism to progress whereas mechanical waves demand a mechanism for their communication. Electromagnetic waves progress in a vacuum whereas mechanical waves don't have.
Which organelle is most like a factory delivery driver?.
lysosome
O endoplasmic reticulum
O cytoplasm
nucleus
Answer:
its B good luck
Explanation:
Question 4 of 5
The box shows the element nitrogen as it appears in the
periodic table.
N
Nitrogen
14.0
Which two parts are needed to make a neutral atom of nitrogen?
O A. Electron clouds with a total of 14 electrons
I B. A nucleus with three protons and four neutrons
C. A nucleus with seven protons and seven neutrons
O D. Electron clouds with a total of seven electrons
Answer:D & C
Explanation:
What evidence would indicate a new material has been produced?
A Soot appears on a fireplace after a fire.
A metal spoon gets hot after coming out of a dishwasher.
.
A The hubcap of a car is bent during an accident.
A wire sags when too much electricity passes through it.
Your professor describes an aquatic eukaryote that is single-celled, a primary producer, unable to swim on its own, and is structurally resistant. What organism is most similar to the one described by your professor?
Answer:
The correct answer is - diatom (protist)
Explanation:
The characteristic described by the professor is most similar to the characteristic of aquatic protist - diatoms. Diatoms are the aquatic protist fall into the eukaryotic type of organisms.
These organisms are single-celled and can not swim on their own. They are a primary producer as they do not depends on others for their food and energy and synthesized themselves.
Include captive breeding, laws and treaties, and habitat preservation
Mendel developed pure lines of peas for his experiments because he wanted
them to be
A. control groups
B. fast-growing
O C. more productive
D. the same
Answer:
A
Explanation:
Which statement reveals a property that can be used to identify a mineral?
A mineral is found in Africa.
O A mineral is made in a laboratory
O Amineral is used to make medicine,
A mineral has hexagonal-shaped crystals.
I think it’s the last one but can someone confirm it
The statement reveals a property that can be used to identify a mineral is A mineral has hexagonal-shaped crystals.
Which is not a property that can be used to identify a mineral ?Colour is not a effects that can be used to determine a mineral. Natural occur in, solid, inorganic, and crystalline form, and the exact chemical arrangement , have five properties of a mineral.
Thus, option "D" is correct, having hexagonal-shaped.
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Silver (Ag) has 47 protons in each atom. Based on this information, which of the following also describes an atom of silver? A. It has no neutrons. B. It has 47 electrons. C. It has 23 neutrons and 24 electrons. D. It has a total of 94 neutrons and electrons. it science by the way.
Answer:
B
Explanation:
It has 47 electrons, as proton number is equal/the same as the electron number (proton number=electron number).
Hope this helps! :)
this mannitol salt plate was inoculated with an unknown staphylococcus species. what can you conclude about this unknown organisms
Complete question: Analyzing Mannitol Salt Agar (MSA): An MSA plate was inoculated with an unknown Staphylococcus species. What can you conclude about this unknown organism?
A. It can ferment mannitol.
B. It produces acid during fermentation, leading to a lower pH in the medium.
C. It can tolerate higher salt concentrations.
D. It could be S. aureus.
E. All the above
Answer: The correct option is E ( all of the above)
Explanation:
Culture medium is a growth medium that is used in microbiology which permits the growth of microorganisms. It can be in a gel or liquid form. There are different types of culture medium which includes:
--> Differential medium
--> Selective medium
--> Enriched medium
Mannitol Salt Agar( MSA) is a type of selective culture media that is used in microbiology for the identification and isolation of staphylococcus species from biological samples. A typical MSA includes essential growth factors and trace nutrients such as nitrogen, vitamins, minerals and amino acids essential for growth. The medium contains sodium chloride( salt) with mannitol which is the fermentable carbohydrate source
Staphylococcus aureus organisms are capable of fermenting mannitol, produces acid during fermentation leading to a lower pH in the medium, and can tolerate higher salt concentrations. Therefore the unknown organism is POSITIVE to mannitol salt agar analysis. Thanks and I hope it helps!
which of the following rock type(s) may be weathered to become sediment and form a sedimentary rock?
A) Igneous rock
B) Sedimentary rock
C) Metamorphic rock
Igneous, Sedimentary and Metamorphic rocks
Answer: B i believe
Explanation:
Which statement best explains how the cell membrane helps a cell remove waste? A. Carbon dioxide molecules pass out of the cell through the layer of phospholipids
Write two differences between the unicellular and multicellular organisms.
Answer:
1.a unicellular organism has only 1 cell while a multicellular organism has 1 or more cell
2.a unicellular organism is a prokaryotic cell or bacteria, while a multicellular organism is mainly a eukaryote
Explanation:
Answer:
Unicellular organisms are single-celled
Multicellular organisms are multi-celled
Unicellular organisms include bacteria
Multicellular organisms don't include bacteria
Explanation:
Hope this helped!!
Removing a specific group of trees within a small area over a long period of time is
a. clearcutting
b. seed tree cutting
C. group selection
d. single tree selection
Answer:
C. group
Explanation:
Removing a specific group of trees within a small area over a long period of time is group selection. The correct option is C.
What is group selection?A quantitative definition of group selection is when the average group fitness is greater or less than the mean of the fitness values of the individual members.
Another definition of group selection is when features evolve in accordance with the fitness (survival and reproductive success) of groups.
The conclusion was that although group selection is theoretically feasible, in practice it almost always favors one group over another.
Group selection is the long-term removal of a certain group of trees in a constrained region. In a clearcut, all the trees in a specific region are taken out at once.
The removal of shelterwood cutting clears an area's also clears land cleared for shelterwood cutting, which also involves cutting downing shelterwood cutting, but it is a completes a method of clearing
Thus, the correct option is C.
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