Answer: The theory of endosymbiosis.
Explanation:
The idea proposed by Margulis is called the theory of endosymbiosis.
Which of these is a likely goal of scientists involved in the Human Genome Project?
to create a map of every female’s genome
to understand the function of genes that are affected by disease
to prove that all medical conditions are related to specific genes
to develop organisms that have identical genomes
Answer:
B. to understand the function of genes that are effected by disease
Explanation:
i took the test
Answer:
B is the correct answer
Explanation:
8. What is an ecosystem?
how did the video tell you to remember what is happening during the anaphase stage of mitosis
Answer:
The two parts of the DNA line up on the sides of the cell, getting ready to let the cell pinch and then go into telophase
In summers, the leaves of a potted plant droops when the soil becomes dry. Which cell organelle makes the leaves to droop?
1)Nucleus, as it stops making DNA.
2)Cell wall, as it starts to shrink.
3)Lysosome, as it is releasing the digestive enzymes.
4)Vacuole, as it loses all the water.
Answer:
4) Vacuole as it loses all the water
Explanation:
brainliest!! Which of the following can be found at a divergent boundary, but not a convergent boundary?
Volcanoes
Earthquakes
Rift Valleys
Mountain Ranges
Answer:
Rift valleys cannot be found at convergent boundaries
If I want to freeze water and I use warm water and cold water then the cold water will
freeze faster because it is closer to the freezing point already.
Aerobic respiration takes place in the ______________ inside cells while anaerobic respiration takes place in the _______________ of a cell. Question 4 options: cytoplasm, lysosome cytoplasm, mitochondria mitochondria, muscle tissue mitochondria, cytoplasm
Answer:
mitochondria; cytoplasm
Explanation:
Remember, the main difference between the two types of respiration is that Aerobic respiration relies on oxygen to break down body fats and sugars into energy. While Anaerobic respiration does not require oxygen to produce energy from fats and sugars.
Thus, In living organisms, it is believed that Aerobic respiration takes place in the mitochondria inside cells while Anaerobic respiration takes place in the cytoplasm of a cell.
_____ increase cell efficiency and function, because the division of labor allows incompatible processes to occur simultaneously, and the cell can respond quickly to changing environments.
a. cytosol
b. Fimbriae
c. Organelles
d. Nucleoids
e. Microtubules
Answer:
D
Explanation:
Identify the type of plant tissue that brings in gases: epidermal muscle cellulose epithelial
Gases are brought in and released out through the epidermal tissues
What is levels of organization
can someone please help!!
Answer:
either B. or D. but i think its B.
Explanation:
Answer:
B.
Explanation:
The passage specifically mentions that "In natural condition,'' with this information we can use the process of elimination.
A is incorrect, how can humans genetically engineer an animal that has been in the wild its whole life.
C. is incorrect, the shape of this dog, nay any animal can not change in one generation. If this had happened the dog would be considered having a disability.
D. is incorrect, again how could humans interfere and breed dogs if they have not had any human contact. unless they cross bread, which is very unlikely, due to the descendants of this specific breed, and their location in the globe.
with all of this information it is safe to assume that option B is correct; most likely the ancestors of this dog became used to not running and easily finding food so the dog had a beneficial mutation, where it got rid of a body part it did not need, like long legs, but kept or enhanced things it needed like a long nose.
hope this helped :)
Because viruses are prone to mutation and exchanging genetic information, the creation of a new lethal virus can occur at any time. *
true or false
Answer:
true
Explanation:
hi. i’m helping my cousin with homework and teaching her how to use this app. put these countries from largest to smallest; china russia india usa
Answer:
Russia, usa, china, india
Explanation:
Answer:
Russia, China, USA, India
Explanation:
copies the genetic instructions from DNA in
the nucleus, and carries them to the cytoplasm.
Answer:
Explanation:
Messenger RNA (mRNA) copies the genetic instructions from DNA in the nucleus, and carries the instructions to the cytoplasm
What is the volume of this fish tank?
I= 50 cm h=12 cm w=20 cm
please help
Answer:
12,000 cm
Explanation:
To find volume, you multiply length times width times height. Therefore, your answer is 12,000. Hope this helps! :D
if you lined up TMV particles end to end, how many would fit along the length of the same paperclip?
Answer:
100,000 particles. (30,000,000/300 = 100,000)
Explanation:
Hope this helped.
=)
Cell membranes are a border between the aqueous
environment outside the cell and the aqueous
environment of the cytoplasm inside the cell. Cell
membranes are in part made of phospholipid polymers.
Based on the properties of the monomers that make up the phospholipid polymer, which of the following best predicts how the two phospholipids are positioned in the cell membrane?
A) The hydrophilic heads will face outward toward the cell's exterior and inward toward the cell's interior. The fatty acids will be tail-to-tail in the center of the membrane.
B) The glycerol region in the fatty acid will bend toward the interior of the cell. The choline will bend toward the exterior of the cell.
C) The hydrophobic heads will bind with other
hydrophobic heads and turn inward to the center of
the membrane. The fatty acids will randomly move, giving the membrane fluidity.
D) One choline will turn inward toward other choline in the bilayer. The fatty acids will be attracted to the choline and form the interior of the membrane.
Answer:
I think it’s C because the tails are inside the lipid bilayer and the choline which looks like the hydrophilic heads are the exterior
The hydrophobic tails of the phospholipid are in the interior with the hydrophilic heads facing the aqueous envrionment internally and externally in the cell membrane.
What is the cell membrane?The cell membrane is a phospholipid bilayer which serves to separate and protect the internal cell contents from the external envrionment.
The cell membrane membrane is arranged such that the hydrophobic tails of the phospholipid are in the interior with the hydrophilic heads facing the aqueous envrionment internally and externally.
Therefore, the hydrophilic heads will face outward toward the cell's exterior and inward toward the cell's interior while the fatty acids will be tail-to-tail in the center of the membrane.
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what are some of the key traits that make algae a desirable energy source
Which property allows water to resist changes in temperature?
a) high specific heat
b) cohesion
c) adhesion
d) polarity
The property that allows water to resist changes in temperature is its high specific heat (Option a is correct).
Specific heat refers to the amount of heat that one substance needs absorb or lose to change (either rise or decrease) its temperature by one (1) degree Celsius (°C).The high heat capacity of the water is due to the hydrogen bonds among H2O molecules.When heat is absorbed, these hydrogen bonds are broken down and then H2O molecules move freely.In conclusion, the property that allows water molecules TO RESIST CHANGES in temperature is its high specific heat (Option a is correct).
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Which pair of Earth's sphere's interact the most when ocean waves break onto a beach?
-atmosphere and biosphere
-geosphere and atmosphere
-hydrosphere and biosphere
-geosphere and hydrosphere
Answer: geosphere and hydrosphere
Explanation:
The pair of Earth's sphere's interact the most when ocean waves break onto a beach are the geosphere and hydrosphere.
The geosphere includes the landforms, minerals, rocks, and every other process which gives the surface of the Earth its shape.
The hydrosphere is the part of the Earth's sphere which consists of water. It is made up of underground water, water on the Earth's surface and also the water that is in the air.
Which organism is a fungus-like protist?
O slime mold
O dinoflagellate
O diatom
0 yeast
Answer:
It's A.) slime mold
Explanation:
Edge said it was correct on a quiz.
Slime mold is an organism that looks like a fungus-like protist. Thus, the correct option is A.
What is Fungus?A Fungus may be defined as a eukaryotic organism that comprises microorganisms like yeasts and molds, as well as the more familiar mushrooms. Such types of organisms are spore-producing and typically feed on organic matter.
The fungus-like protists are unicellular in nature. As they are originally the members of fungi because such organisms are capable of producing sporangia.
Yeasts are members of the fungus kingdom, which are single-celled microorganisms. Diatoms are members of the algal class Bacillariophyceae. Dinoflagellates are members of the phylum Dinoflagellata which are single-celled eukaryotes.
A fungus-like protists organism has numerous properties that match the characteristics of fungi. All Fungi are heterotrophs in nature and thus they are incapable of the production of their own food.
Therefore, Slime mold is an organism that looks like a fungus-like protist. Thus, the correct option is A.
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Please help me its science I’give you a brain list
Answer:
All of the above.
Explanation:
Liquids have no shape but do have a volume.
Gas don’t have a shape or volume.
Solids maintain its shape and volume.
what does all living cells have
Answer:
Hope it helps
Explanation:
all cells have certain parts in common. The parts include a plasma membrane, cytoplasm, ribosomes, and DNA.
The scientist Konstantin Mereschkowsky knew in the early 1900s that plants make their own food by using sunlight. He also saw tiny parts in plants called chloroplasts that do not appear in any animals. He hypothesized that chloroplasts are what help plants make food. After many more observations of all types of plants and animals, scientists are convinced today that chloroplasts make food for plants.
Answer:
Explanation:c
Answer:
c
Explanation:
The enzyme lipase is produced in the pancreas to help digest fats in foods. The lipase breaks down the fats into which of the following?
A. amino acids
B. nucleic acids
C. fatty acids
D. polypeptides
The enzyme lipase is produced in the pancreas to help digest fats in foods. The lipase breaks down the fats into amino acids. Thus, option A is correct.
What are enzymes?Enzymes are the biological catalyst that speed up the chemical reaction that carries out in the body. Enzymes are protein by nature and there are number of enzymes present in our body such as salivary amylase, pepsin, renin, lyases, lygases etc
The main function of enzyme is to make the metabolism fast as well as speed up the chemical reaction carried out in the body.The best example of enzyme is salivary amylase which is an enzyme and it is present in the saliva and helps in the digestion of food.
Therefore, the enzyme lipase is produced in the pancreas to help digest fats in foods. The lipase breaks down the fats into amino acids. Thus, option A is correct.
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Choose another feature of a bird and describe how that particular part is an adaptation
Answer:
Body Contour
The birds have a spindle-shaped body to offer less air resistance during flight. This helps the birds to conserve energy and become more efficient at flying
what is the relationship between the cytoplasm and nucleus of a cell
Answer:
The nucleus is a cell's central organelle, which contains the cell's DNA (Figure 3.6). The cytoplasm is composed of two parts, the cytosol and organelles. Cytosol, the jelly-like substance within the cell, provides the fluid medium necessary for biochemical reactions.
Explanation:
In the food chain below, which is the producer?
Answer:
Could you attach an actual pdf of the food chain so we can see?
The producer is whatever makes the food for the first organism in the chain.
Explanation:
What adaptation most likely helps this bird fly?
O A strong beak
Hollow bones
O Small feet
O The color of the bird
Answer:
Hollow bones because it will make the bird lighter.
Answer:
Hollow Bones
Explanation:
Being a bird you have to be able to carry yourself while flying, meaning that they need to be light in order to fly. Which is why hollow bones is reasonable answer.
Why is the boundary between two air masses called a front
Answer:
The boundary between two air masses with different temperatures and different property is called front.
Explanation:
The boundary between two air masses is regarded as a weather front. Weather fronts can be either warm or cold fronts. The characteristics either side of a front would display the characteristics you’ve listed. So typically, if you considered an air mass ahead of a warm front which could be a polar maritime, this would be cold air so would have high density, and because it’s cold it’s ability to hold water (humidity) would be low. Conversely the air mass behind the warm front could be a tropical maritime air mass. So it would be warm, less dense and very humid.
A weather front is the line separating two air masses when they come together. The two air masses at a front have different densities depending on temperature and are difficult to mix.
What is front?A front is the line separating two adjacent air masses that is clearly delineated by their unique features. The two air masses should be distinct in terms of density, pressure, and temperature, and they should have come from sources that are located in latitudes that are apart.
The characteristics of the air mass that is replacing the previous air mass are used to identify fronts.
Therefore, the boundary between two air masses called a front, a cold front, is the boundary between two air masses traveling in opposite directions.
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