Answer:
The Endosymbiotic Theory of eukaryote evolution is known as Symbiogenesis that states the evolution of eukaryotic cells from prokaryotic organisms.
The engulfing a functional cyanobacterium to produce photosynthetic eukaryotes ("plants") is considered as final step of the eukaryote evolution because a functional cyanobacterium closely resemble the chloroplast and related to mitochondria and it maintains a large genome that encodes thousands of proteins.
A photosynthetic eukaryotes ("plants") require cholorplast (green pigment) for photosynthesis and protein synthesis, which all are provided by functional cyanobacterium, after that a eukaryote can functions as an individual eukaryote and not as prokaryote, and hence engulfing functional cyanobacterium is considered as last step of eukaryote evolution.
Summarise the differences between the nervous system and the endocrine system on the body’s coordination. Nervous System / Endocrine system How is the signal sent throughout the body? How quickly does the signal travel? What does the signal do to the target cells? How long does the effect of the signal last?
The nervous system signals the endocrine system to release
hormones in response to a stimulus.
The nervous system respond to stimulus through action potentials and neurotransmitters and they signals the endocrine system to secrete hormones.
The endocrine system is responsible for secreting hormones into the blood which is transported to the target cells. These hormones are responsible for metabolism , growth and response to stress. The hormones secreted provide feedback to the brain so as to affect neural processing.
A membrane which allows all substances to pass through is ________________________ non-permeable c. permeable partially permeable d. impermeable
Answer:
A membrane which allows all the substances to pass through is called permeable membrane.
Explanation:
Hope it will help ^_^
helpp.............................
Answer:
The answer is A
Explanation:
It is logical because the balloon lets the student see how much gas is released in the reaction. the balloon inflates with invisible air the student will normally not see.
An ecological footprint is the
A. Mark a persons shoe makes in soft earth
B. Number of animals a person has killed
C. Amount of land and ocean area needed to support one person
D. Number of trees people cut down
Answer:
C. Amount of land and ocean area needed to support one person.
Explanation:
The ecological footprint of a person is the amount of land or resources that are required for the maintenance and survival of a person. In simpler terms, it is the level of impact that an individual has in terms of the productive land and resources required for the person to survive.
This ecological footprint allows scientists to check and keep track of the impact of human activities in terms of the land and water used by an individual for his/ her survival. And this date will provide details about any biologically productive land or water areas, giving an estimate of the area needed to provide the renewable resources for the perpetual cycle of nature for the individual.
Thus, the correct answer is option C.
lots of points - pretty simple question - please be specific
Why are the atmosphere, biosphere, lithosphere, and hydrosphere all called “Earth’s life-support system”?
bcs they stops harmful rays of Sun from directly entering earth and also atmosphere for breathing
Do you ever feel like you can say things on the Internet that
you wouldn't say in real life? Why or why not?
Answer:
yes because you aren't face to face with anyone your saying it to. If you were, you might not say something like that.
Some people are shy in nature, they can not express themselves in front of the people, so they adopt a virtual method of communication that is via internet.
what is internet ?Internet is a global system of interconnected computers and it uses a standardized Internet Protocol, used for communication and sharing information is called the Internet.
The Internet is a revolutionized communication and technology across the Globe, these are computerized devices initially used for large industries but later the usage increased massively.
The different ways to connect the Internet via dial-up connections where user link their phone line to a computer to access the Internet but the cannot make or receive phone calls.
Another mode of connection is Broadband which provide either cable or phone companies, is a high-speed internet connection, Wireless Connection provide wi-fi or mobile services, in this case Internet can be connected anywhere.
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Which biomolecule forms the cytoskeleton in cells?
A Lipids
B Carbohydrates
С Proteins
D Nucleic Acids
Answer:
microtubules. actin filaments and intermediate filaments
The cytoskeleton is the internal structure that maintains the shape of the cell and is made up of proteins that polymerize into filamentous structures.
What are proteins?They are biomolecules made up of structural units called amino acids.
The cytoskeleton is a protein-based system found in cells that provides internal support and is constructed of three main types of filaments (proteins), these are microtubules, microfilaments, and intermediate filaments.
Therefore, we can conclude that the cytoskeleton is the internal structure that maintains the shape of the cell and is made up of proteins that polymerize into filamentous structures.
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Which is one quality of the entire open-ocean zone?
Answer:
few nutrients and high pressure
Answer:few nutrients a
Explanation:
Analysis in which general conclusions are drawn from specific observations is called
a. deductive reasoning
b. inductive reasoning
c. reductive reasoning
d. productive reasoning
Answer: Option B
Inductive reasoning.
Explanation:
It is inductive reasoning because inductive reasoning is a type of reasoning in which general informations are made based on some specific observations or information even when the conclusion is not complete guaranteed to be true.
This means that you make a guess's or generalizations based on the information you have at hand.
For example; The left handed people the you know uses left hand in right and you now make the conclusion that all left handed people write with their left hand only.
Soil is a combination of tiny rock fragments and decayed plant materials. How do you think soil helps a plant
what is metamorphosis?
Explanation:
A change of the form or nature of a thing or person into a completely different one, by natural or supernatural means.
Are viruses living or non-living? Explain
Which substances form a homogeneous
mixture when mixed with water?
salt
vinegar
mud
milk
iron filings
cement
Salt and vinegar only form a homogeneous
mixture when mixed with water.
A lichen growing on a rock is an example of
Answer:
...primary succession.
Explanation:
Answer:
Chemical weathering
Explanation:
The distance between earth and the moon is about 384,100 km distance can be written in scientific notation is 8×10 to the power of the kilometers were a equals blank and b = blank
Explanation:
The distance between Earth and the moon is about 384,100 km.
A number in scientific notation is given as :
[tex]N=x\times 10^y[/tex]
Where x is a real number and y is any integer
In scientific notation, the distance between Earth and Moon is :
[tex]d=384100\ km\\\\d=3.8\times 10^5\ km[/tex]
It means a = 3 and b = 5.
What cannot be answered by science?
Answer:
Religion
Explanation:
Religion is a belief therefore, you can't conduct an experiment or scientifically prove it exists.
What are some reasons why newborn babies “fail to thrive”?
Answer:Down syndrome.
cerebral palsy.
heart disease.
infections.
milk allergy.
cystic fibrosis.
celiac disease.
acid reflux disease.
Explanation:
Answer:
Failure to thrive is slow physical development in a baby or child. It's caused by a baby or child not having enough nutrition.
Explanation:
serious medical problems premature birthlack of enough calories celebral palsy8. Carbohydrates and lipids share which two of
the following characteristics?
Some mammals help maintain their body temperature by sweating when their bodies rise in temperature.
Which property of water is responsible for the ability of sweat, which is mostly water, to help lower body temperature?
Water absorbs heat by breaking hydrogen bonds.
Water changes in density when it changes from a gas to a liquid.
Water’s ability to dissolve solutes, such as salt
Water’s ability to form hydrogen bonds with skin cells
Answer:
Water absorbs heat by breaking hydrogen bonds.
Explanation:
Specific heat is the amount of heat that must be absorbed or lost for 1 gram of that substance to change its temperature by 1 degree. As someone works out, their body releases sweat to keep their body from overheating. Specific heat it mentions that hydrogen bonds between water molecules require heat to form and break, which is what happens when we sweat.
A researcher collected a single-celled organism from birdbath water and grew the organism in a laboratory. The researcher observed the organism reproducing by cell division, which resulted in identical offspring generations. This organism exhibits a form of
Answer: The organisms exhibit a form of Asexual reproduction.
Explanation:
This is a form of asexual reproduction because Asexual reproduction is a form of reproduction where a single celled organisms or muiticellular organisms produce or divide to produce offsprings that are genetically identical without fusion of gametes and exchange of genetic materials.
This type of reproduction includes binary fission( where an organism divides into two), fragmentation( where an organism divides into fragments), budding, spore formation e.t.c.
How many neurons are in oxygen Adams
Answer:
8
Explanation:
Answer:
The answer would be 8
Explanation:
This means we have 8 neutrons, 8 protons and 8 electrons.
Don't know how to do it
an ice cube has the following dimensions :
5.5cm - 8.0cm - 8.4cm
its mass is 340g.Calculate:
a-its volume
b-its density
Answer:
The correct answer would be :
1 volume = 369.6
2. density = 0.9199
Explanation:
Given :
dimensions : 5.5cm - 8.0cm - 8.4cm
Mass : 340 g
Formula :
volume = side * side * side
density = mass/ volume
Solution :
volume of ice cube would be
= 5.5cm * 8.0cm * 8.4cm
= 369.6 m³
density of ice cube would be
= 340/369.6
=0.9199
Thus, the correct answer would be
1 volume = 369.6
2. density = 0.9199
Which process most likely enabled the formation of the early protists?
Answer:
endosymbiosis.
Explanation:
By the beginning of the 20th century, researchers thought that plastids and mitochondria could come from bacteria. These would have been ingested by primitive cells and live within them in symbiosis.
Answer:
endosymbiosis
Explanation:
List the monomers and polymers of carbohydrates, lipids, proteins, and nucleic acids.
Answer:
monomer of carbohydrates glucose,sucrose,fructose
polymer of carbohydrates starch,cellulose,glycogen
monomer of protein amino acids
polymer of protein polypeptides
monomer of nucleic acid nucleotides
polymer of nucleic acid DNA
polymer of lipids triglycerides
monomer of lipids 3 fatty acids and glycerol
Monosaccharides are the monomers and polysaccharides are the polymers of carbohydrates. Amino acids are monomers and polypeptides are the polymers of proteins. Nucleotides are the monomers of nucleic acid and polynucleotides are the polymers of nucleic acids. Fatty acids and glycerol are monomers and triglycerides are the polymers of lipids.
What are monomers and polymers?Lipids, Polysaccharides, Proteins and Polynucleotides are the four major groups of macromolecules that are found in the bodies of all living organisms. These are also called biomolecules.
Monomers are small molecules which are generally organic. These molecules combine with other similar monomers which form large molecules. These are polymers. All the monomers can form chemical bonds with at least two monomer molecules.
A class of synthetic substances that are composed of multiples of simpler units or monomers are called polymers. These are the chains of monomers which have a nonspecified number of monomeric units.
Therefore, monosaccharides are the monomers and polysaccharides are the polymers of carbohydrates. Amino acids are monomers and polypeptides are the polymers of proteins. Nucleotides are the monomers of nucleic acid and polynucleotides are the polymers of nucleic acids. Fatty acids and glycerol are monomers and triglycerides are the polymers of lipids.
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Developing countries, such as Ethiopia, are areas where there is low technological advancement and poor standard of living. A major issue in these countries is malnutrition, which means they do not have access to enough nutrients for their bodies to perform all their normal functions and can lead to higher death rates. Often individuals in these countries live primarily on a single staple grain such as rice. Children living in these conditions will have similar characteristics such as extremely thin arms and legs.
What key macromolecule might be missing from children in this condition?
Answer: protein
Explanation:
Proteins are one of the four main types of _________
Answer:
Proteins, carbohydrates, nucleic acids, and lipids
Explanation:
These are the 4 specific types.
Answer: carbohydrates, nucleic acids, and lipids
Explanation: i hope this helps :)
One hydrogen bound is
Answer:
a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
Explanation:
What is the "scale of cells"?
How does algae reproduce? Select the best answer.
only sexually
both sexually and asexually
only by fission
only asexually
option B both sexually and asexually
Explanation:
Algae regenerate by sexual reproduction, involving male and female gametes (sex cells), by asexual reproduction, or by both ways. Many small algae reproduce asexually by ordinary cell division or by fragmentation, whereas larger algae reproduce by spores. ...