Answer:
these chromatids separate longitudinally to become individual chromosomes.
one chromosomes is composed of and DNA molecule
Answer:
DNA
Explanation:
Chromosomes are made of DNA and contain two identical chromatids.
Which statement best describes the main goal of a dichotomous key? to expand classifications and group organisms into larger categories to eliminate traits and group organisms into smaller categories to observe characteristics and discover new species to compare classifications and design new kingdoms
Answer:
to eliminate traits and group organisms into smaller categories to observe characteristics and discover new species to compare classifications .
According to me ,
it should be right.
Hope it helps.
Which of the following organisms breaks down dead material and returns the substances to the environment?
Answer:
C.Bacteria
Explanation:
The organism that breaks down dead materials are decomposers, ofc lion and vulture arent decomposers. Algae also a producer and not a decomposer. So the only answer is bacteria, bacteria is a small organism that eat and decompose dead things :)
The organism that breaks down dead material and returns the substances to the environment is BACTERIA, which is option C.
BACTERIA especially those that lives in soil are saprophytic in nature. This means that they feed on dead decaying organisms and their excreta (wastes such as urine and faeces) and bring about their decay or decomposition. This occurs through the following'
• they secrete enzymes onto their food source such as a decaying leaf,
• these enzymes break down complex compounds like carbohydrates and proteins into simple inorganic compounds.
• a lot of chemical energy is lost as unusable heat energy.
• the decomposers (bacteria) only absorb a small amount of nutrients and energy for their use
• the rest is then released into the soil, air and water.
Therefore, the organism that breaks down dead material and returns the substances to the environment is BACTERIA.
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(Score for Question 3: ___ of 2 points) 3. Sketch some of your observations from the lab. Answer: (Score for Question 4: ___ of 2 points) 4. Compare your observations of micrographs obtained from the optical microscope, the scanning electron microscope, and the transmission electron microscope. Answer: (Score for Question 5: ___ of 2 points) 5. Which type of microscope would be the best tool to use to view the surface of a bacterial cell? Why? Answer: Type your answer here.
Answer:
question 4
optical microscope uses visible light and a lense to generate magnify
scanning electron microscope produces image of a sample by scanning with a focused beam of electrons
whule transmission electron microscope in which uses beam of electron is transmitted through a specimen to form an image
Explanation:
the microscope best for the view of bacteria is COMPOUND microscope cause its mostly used by botanist abd plants
Question 1
Which statement is true about the force of gravity
whats the difference between constant variables, and independent variables.
Answer: The independent variable is the one that is changed/controlled by the scientist. To ensure a fair test, a good experiment has only one independent variable. ... Experiments also have constants or controlled variables. Controlled variables are things that a scientist wants to remain the same throughout the experiment.
Explanation:
As water is cooled, its density
until it reaches about 4° C.
A. decreases
B. increases
C. decreases and increases
D. stays the same
As water is cooled its density increases 4 degrees Celsius is reached
Cooling causes water to slow down at a faster rate occupying a smaller rate as hot water is less dense than the room temperature as cold water is denser and will freeze at room temperature.
Water being a solvent has various physical and chemical properties.
Water has to condense to a certain point to produce the desired effects.
So B) Increases
Please help
Explain Give two examples of how abiotic factors are influenced by biotic factors?
Answer: If this doesn't help just let me know
The abiotic factors will define which organisms are able or not to live in a specified place. The living organisms will constitute the biotic factors, which define if and how can an organism live in a specified environment. So, the abiotic factors are controlling the biotic factors of an environment.
The interaction between humans and water and plants and soil are examples of the influence of biotic factors on abiotic ones.
Biotic and abiotic factors are biological terms to refer to:
Abiotic factors: are the set of non-living physical and chemical components of an ecosystem.Biotic factors: are the set of living components of an ecosystem.According to the above, living beings (biotic factors) can affect abiotic factors such as water because they contaminate it with chemicals or waste.
Also, plants (biotic factors) see the soil (abiotic factors) because they provide them with nutrients.
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Convert 325 mililiters to liters
1l = 1000ml
325ml : 1000 = 0.325liters
Answer:
.325 liters
Explanation:
The answer is .325 liters cause am smart and i am in bio! :)
After you form a hypothesis
you must test to see if it is correct.
Answer:
true
Explanation:
Hypothesis testing is used to assess the plausibility of a hypothesis by using sample data. The test provides evidence concerning the plausibility of the hypothesis, given the data. Statistical analysts test a hypothesis by measuring and examining a random sample of the population being analyzed.
I really need help! A. Descriptive Data Analysis B. Inferential Data Analysis
Is a descriptive analysis
Answer: Your wish is my command. The answer you are looking for is B. Inferential Data Analysis. :)
Explanation:
While searching online for a medical coding position, Maria noticed that several opportunities required CCS-P, CPC, or other current coding credentials. Which of the following key words or phrases could she use to search for their meaning on the Internet?
a. Certification
b. lnterpersonal relationship skills
c. Computer skills
d. Records management skills
Answer:
a. Certification
Explanation:
The keyword she can use to search for their meaning on the internet is certification.
Medical coding is an aspect of healthcare and Medical coders can follow quite a number of paths to gain certifications. Some of these includes:
The Certified Professional Coder, CPC is one of these, the certified coding specialist, CCS is another too. Therefore the correct answer is certification.
Identify ways in which all biological systems from cells and organisms to populations, communities and ecosystems are affected by complex biotic and abiotic interactions involving exchange of matter and free energy
Answer:
Explanation:
Cell which is the basic unit of life is affected by the interactions with biotic and abiotic factors such as temperature, sunlight. Organisms are made up of cells and they respond differently to temperature changes, sunlight, water availability. Some cell perform better at some certain range of temperature while some cannot.
Organism itself are affected by the interaction of some of this factors this include water and nutrients availability. Distribution of organism in a particular habitat is greatly influenced by availability of water and nutrients it lead to competition for survival among organism. Population density and species diversity also influence community and ecosystem. Population determines how resources is allocated in a community and it affect the activities of the organism in that domain or territory.
Part 1: Cats Falling Out of WindowsFeline High-Rise Syndrome (FHRS) is the term used in medical cases of cats falling from balconies orwindows of high-rise buildings in urban areas. The cause of the fall in most cases happens when play, whenthe animal jumps from the window or over the balcony, when chasing a bird or insect, or it slips whilewalking on the edge of the balcony, railing or window.12This begs the essential question: Howdothenumberofinjuriespercatrelatetothenumberofstoriesacatfalls?
Answer:
Please see below
Explanation:
A trend becomes apparent as we observe the data about cats falling from a certain number of stories. From story one to eight, there is an increase in the number of injuries that the cat suffers. Although in the last category, stories 9 to 32 (grouped together) there is a lower number of injuries.
Fill in the blank: Most organisms require that their internal environments
remain in a fairly constant range, and so they maintain _______
A. Homeostasis
B. Metabolism
C. DNA
D. Stimulus
Answer:
I'm pretty sure its A. Homeostasis
Antinomycin A is a poison that affects the electron transport chain and renders it nonfunctional. In the presence of Antinomycin the Citric Acid Cycle would:
Answer: options are not given, here are the options.
Speed up
Slow down
Remain the same
The correct answer is In the presence of Antinomycin the Citric Acid Cycle would SLOW DOWN.
Explanation:
Actinomycin is an antibiotics gotten from streptomyces which is use to inhibit which inhibit mitochondriisl eclectron transport chain.It is a poison that affect the electron transport chain, non functional and it slow down citric acid cycle because it has the ability to block the electron Transport chain thereby slowing down citric acid cycle because it inhibit or slow down succinate-cytochrome c reductase in the electron transport chain so as to block the oxidation of NADH and ATP production.
Categorize each carbohydrate listed as either a monosaccharide, disaccharide, or polysaccharide.
glucose
cellulose
sucrose
fructose
starch
Answer:
hey there,
glucose - monosaccharide
cellulose - polysaccharide
sucrose - disaccharide
fructose - monosaccharide
starch - polysaccharide
Hope this helped! Feel free to ask anything else.
glucose - monosaccharide
cellulose - polysaccharide
sucrose - disaccharide
fructose - monosaccharide
starch - polysaccharide
Explanation: shout out to the person above!!! ^
100% correct
12. An example of a hydrogen bond is the bond between?
The Hydrogen of one water molecule and the Oxygen of another water molecule.
The two hydrogen atoms in a molecule of hydrogen gas (H2).
Carbon and Hydrogen in a molecule of methane (CH4)
Sodium (Na) and Clorine (CI) in salt.
Answer:
The hydrogen of one water molecule and the oxygen of another water molecule
The Hydrogen of one water molecule and the Oxygen of another water molecule.
Hydrogen bonding happens when a hydrogen atom from one molecule attracts an electronegative atom like oxygen or nitrogen in another. Water is cohesive and sticky because the hydrogen atom in one water molecule bonds with the oxygen atom in another.
Hydrogen bonding affects the structures and characteristics of molecules and compounds in nature and is important in many biological and chemical processes. Therefore, the Hydrogen of one water molecule and the Oxygen of another water molecule.
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A student is using a microscope to observe samples taken from pond water. She notices something that she thinks may be a living thing. Which feature would BEST support that the unknown sample is a living thing?
Answer:
If the thing was moving- and it was manipulating the matter around it
Explanation:
Living things are characterized as living/not living through a couple of characteristics:
is it feeding itself? living things feed themselves from things in their surrounding enviroment.
is it growing? living things always grow/change. a rock doesn't grow and change.
does it reproduce? living things need to reproduce.
is it respirating?
is it moving?
Name a natural polymer
Answer:
Example for a natural polymer can be "silk"
Answer:
Natural polymers are
Explanation:
silk , wool , cotton which is a cellulose , teflon , polypropylene
A hydrophobic organic compound composed mainly of carbon and a high ratio of hydrogen to oxygen is a ______. Examples include fatty acids, fats, phospholipids, steroids, and prostaglandins.
Answer:
Lipid
Explanation:
Lipid is known as a hydrophobic organic compound composed mainly of carbon and a high ratio of hydrogen to oxygen.
They usually form a large macromolecule and known to be insoluble in water and soluble in substances such as alcohol, ether which makes it non polar substances.
They are however very important and are major constituents of plants and animal cells
When a chance mutation modifies a virus to attach to a new host species, it is called
Answer:
gain-of-function
Explanation:
Gain-of-function mutations represent a type of genetic change that may confer a new function to the gene that undergoes the mutation. In this case, a gain-of-function mutation conferred to the virus an adaptive advantage by allowing it to encode a new protein which is capable of attaching to the cell membrane of a new host. In this regard, it is important to note that loss-of-function mutations are quite common in nature, while gain-of-function mutations are relatively rare.
Which of the following is not a way in which antihistamines may affect transduction pathways? (1 point) They prevent enzymes from transforming histidine into histamine. They prevent release of histamine by blocking signal transduction. They reduce cellular response by blocking signal transduction. They reduce histamine in the blood by binding to and destroying it.
Answer:
The correct answer is : They reduce histamine in the blood by binding to and destroying it.
Explanation:
Antihistamines are type of drugs that inhibits release of histamine by binding to histamine receptors and suppress the transduction pathways of histamine.
They blocks the enzymes from transforming histidine into histamine and reduce cell response by blocking histamine-induced cascade signal transduction. These are use to treat allergies, congestion, hay fever and other allergy responses.
Thus, the correct answer is : They reduce histamine in the blood by binding to and destroying it.
Does anyone have the answer for this?
Answer:
chalcopyrite
Explanation:
14. Would eating a whole pizza be a good source of energy and still be healthy?
your answer.
I don’t know what to write help me
Answer:
it'll buff
Explanation:
it is what it is
Answer:
It depends what's on the pizza, and how hungry you are. Humans need a balanced diet. A pizza would be a good source of energy, especially if it had some protein and vegetables on it. Since the crust is a starch, you would need to drink a lot of fluids. Yes, eating a whole pizza can be a good source of energy and still be healthy.
Hope this helps
A sample of an unknown liquid has a volume of 24.0 mL and a mass of 6 g. What is its density?
Answer:
0.25 g/cm³ or 0.25 g/mL
Explanation:
Density = Mass / Volume, so you would then plug in your two variables.
D = 6 g/ 24 mL = 0.25 g/mL or 0.25 g/cm³
Answer:
15.607 lbs or 250 g/L
Explanation:
Density is calculated by dividing the mass (6 g.) by the volume (24 mL). With that knowledge you come to the answer which is 250 g/L which is the measurement I'm assuming you'd need considering you're dealing with a liquid.
If you need a different measurement of density, let me know.
Why don't prokaryotic cells divide through mitosis? Mitosis requires a cell membrane, and prokaryotes don't have a cell membrane. Mitosis and cytokinesis require cytoplasm, and prokaryotes don't have cytoplasm. Mitosis is division of the nucleus, and prokaryotes don't have a nucleus. Mitosis requires DNA and chromosomes, and prokaryotes don't have chromosomes.
Answer:
Prokaryotic cells, on the other hand, do not undergo mitosis and therefore have no need for a mitotic spindle.
Explanation:
Can someone please help me with 6-16 please! Thank you! :)
Answer:
6. testable
7. non testable ( it is an opinion )
8. testable
9. testable
10. testable
11. non testable
12. testable
13. testable
14.non testable
15. testable
16. testable
Explanation:
ask yourself wether or not these questions could be answered as a lab it'll help you determine if they are testable or not.
Fossil fuel combustion from millions of cars contributes to air pollution and climate change. Given this information, which is the best example of sustainability in transportation?
Answer: Bike Riding
Explanation: bikes have no gas and help the enviroment. Even Eletri cars can help!
Each of the following is true about Ras except:______
a. Ras activates a cascade of phosphorylation events within the cell.
b. Ras is monomeric. Ras is activated by Sos, a guanine nucleotide exchange factor.
c. Ras activity is inhibited by GTPase activating proteins (GAPs).
d. Ras binds steroid hormones.
Answer:
c) Ras Binds steroid hormones
Explanation:
Ras which belongs to a protein family, which are used in the transmission of the signal within the animal cell. It should be noted that The protein in Ras is associated to Gpase.
The characteristics of Ras are:
✓ Ras is activated by Sos, a guanine nucleotide exchange factor
✓Ras activates a cascade of phosphorylation events within the cell
✓ Ras is monomeric
✓ Ras activity is inhibited by GTPase activating proteins.
Therefore, all the options are true about Ras except C.
Which of the following is not a possible effect of rising carbon dioxide levels on plants? a. increased photosynthesis b. increased plant mortality c. increased crop productivity d. increased plant growth Please select the best answer from the choices provided
Answer:
option D
Explanation:
how the plant growth will be enhanced, so it seems incorrect.
Answer: D on edg
Explanation: