Answer:
B. Carrier proteins
Explanation:
Water-soluble materials, such as glucose, amino acids, and ions, need help to cross the membrane because they are repelled by the hydrophobic tails of the phospholipid bilayer. The tails are not hydrophilic.
Endocytosis vesicles are an example of active transport, they require energy to allow large molecules to be taken into the cell through a system of vesicles.
Golgi complex vesicles deliver proteins and other macromolecules outside of the cell from the inside.
Carrier proteins can participate in both active and passive transport across cell membranes. For example, carrier proteins with channels can help molecules cross the membrane passively.
Why do parasitic flatworms travel into the eyestalks of their snail hosts? *
A) The snail’s brain is located in its eyestalks.
B) The flatworms exit the snail’s body from the eyestalks.
C) The flatworms lay eggs inside the snail’s eyestalks.
D) The flatworms cause the snail’s eyestalks to look appetizing to birds.
Plz help me with this.
Which of the following is the correct base-pairing rule for DNA?
A-U; C-G
O A-G; T-C
OA-T; G-C
OA-C; T-G
Answer:
A-T. C-G
Explanation:
Answer: A-T; G-C
Explanation: my teacher made us remember
Two ways to make a vaccine.
Which statement describes a self-feeder? A. An oak tree takes in energy from sunlight. O B. A bacterium gets nutrients from other organisms O C. A paramecium sweeps food into a mouthlike structure. OD. A panda finds and eats bamboo branches.
Answer:
A. An oak tree takes in energy from sunlight
Explanation:
hope this helps
Answer:
A.
Explanation:
Photosynthesis is the process that
OA.
all green plants and all animals use to break down food.
OB.
all green plants use to produce food.
C.
all green plants and all animals use to produce food.
OD.
all green plants use to break down food.
Answer:
b
Explanation:
photosynthesis is the process by which green plants manufacture their own food with the help of sunlight and chlorophyll
Answer correctly ASAP.
Which of the following objects is the largest?
A. Star
B. Galaxy
C. nebula
D. planet
Which of the following objects is the smallest?
A. Star
B. Galaxy
C. nebula
D. planet
Answer:
1 (B)
2 (A)
Explanation:
1. (galaxies are what a planet nebula and a star are inside of) a nebula if your wondering is a cloud in the galaxy.
2. (Stars because of the fact that our moon is smaller than the planet we live on is my explanation
What is carrying capacity and WHY is it
important for us to know about? Is it good or bad to be over capacity and
why
Answer:
Carrying capacity shows how much you can carry, over being more than what you can carry and under being less than you can carry. It is bad to be over capacity because you would be carrying more than you are physically able to.
What evidence does not back the claim that a chloroplast is an ancient bacterial photosynthesizing endosymbiont?
A. Chloroplasts can be affected by antibiotics, a class of drugs that target bacteria.
B.Chloroplasts have flagella and cilia and these structures are similar in shape and function to flagella and cilia found in bacteria.
C.Chloroplasts have their own genome, and the structure of their DNA is identical to that of bacterial DNA.
D.Chloroplasts replicate and divide through fission, the way bacteria divide.
Answer:
B. Chloroplasts have flagella and cilia and these structures are similar in shape and function to flagella and cilia found in bacteria.
Explanation:
The ENDOSYMBIOTIC THEORY is a theory that suggests the evolution of eukaryotic cells from prokaryotes. The theory explains that some organelles such as MITOCHONDRIA and CHLOROPLAST found in eukaryotic cells were once free-living prokaryotes. This theory was based on certain evidences that backed up the claim that chloroplasts were endosymbiont i.e a cell that lived in another cell. The evidences include:
- Chloroplasts have their own genome whose circular structure of DNA is identical to that of bacterial DNA.
- Chloroplasts replicate and divide through fission, the way bacteria divide
- Chloroplasts can be affected by antibiotics, a class of drugs that target bacteria.
However, among these evidences, the possession of flagella or cilia by chloroplasts is not included.
A test cross to determine the genotype of a green-colored seed would best be represented by _______.
a. Yy x Yy
b. YY x YY
c. YY x Yy
d. Yy x yy
Answer:
d. Yy x yy
Explanation:
In Mendelian inheritance, a TEST CROSS is a cross used to determine the actual genotype of a dominant phenotype. The test cross is usually performed between the unknown genotype and a recessive genotype. If all the offsprings are dominant, the unknown genotype is the same allele but if the offsprings are half dominant and half recessive, the unknown genotype is HETEROZYGOUS.
In this case, a test cross to determine the genotype of a green-colored seed would best be represented by Yy × yy because a test cross must include a recessive genotype, which is "yy" in this case.
can someone please tell me how you can decide whether an organism uses the process of respiration? i will mark brainliest
Answer:
Cellular respiration takes place in the cells of all organisms. It occurs in autotrophs such as plants as well as heterotrophs such as animals. Cellular respiration begins in the cytoplasm of cells.
Explanation:
If
there were suddenly no sunlight
reaching Earth, how would this
affect the ability of plants to
produce carbohydrates?
As we know that plant needs sunlight for performing the process of photosynthesis and by the process of photosynthesis produce food and if there is no sunlight than plant will not be able to produce sunlight and this will affect the ability of plant to produce carbohydrate.
What is photosynthesis?
Green plants contain chlorophyll and they prepare there own food in the presence of sunlight and the process is known as photosynthesis. In the process of photosynthesis light energy converted into chemical energy.
Carbohydrates is defied as that contains biomolecule that contains carbon hydrogen and oxygen in a ratio of 2:1. Carbohydrates are mane source of energy of the body they work as fuel for the brain, kidneys central nervous system and heart muscle.
[tex]Cn(H2O)n[/tex]is the basic formula for all carbohydrates . But this formula have limitation i.e it applies where same amount of carbon and water are use.Initially the terms carbohydrate was used to describe compounds that have really contains carbohydrates. Because they had simple formula[tex]CH20.[/tex]
Therefore, As we know that plant needs sunlight for performing the process of photosynthesis and by the process of photosynthesis produce food and if there is no sunlight than plant will not be able to produce sunlight and this will affect the ability of plant to produce carbohydrate.
Learn more about photosynthesis here:
https://brainly.com/question/1388366
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How many neutrons are in a nucleus of an atom that
has an atomic mass of 16 and an atomic number of
Answer:
4
Explanation:
Match each blood type with the types of blood it can recelve.
1. A
2. B
3. AB
4. O
_________
A, O
B, O
AB, A, B, O,
O
Answer:
1.A- A and O
2.B- B and O
3.AB- A, B, AB, and O
4.O- only O
1. In cellular respiration, stored energy is released from ____________ molecules and transferred to ____________ molecules, which cells can use to provide energy for cellular processes.
Answer:
oxygen molecules
adenosine triphosphate (ATP)
Explanation:
not sure about the latter
Scientific models can be made of plastic or even just be a drawing. Which is a limitation of the drawing and not a model? I need the answer quickly helppp
Answer:
It did not explain the process more clearly.
Explanation:
Limitation of the drawing is that it did not explain the process or phenomena clearly as compared to model which shows a phenomena more clearly. the main reason for that the model has a physical body while on the other hand, drawing is only the picture. in the model we can perform the whole process how a phenomena occurs, its different stages and its final outcome while these things can't be done with drawings.
Scientists use radiometric dating to determine the age of
rocks Radioactive atoms are used for radiometric dating
Which statement does not describe radioactive atoms?
A They are extremely stable types of atoms
B They change into atoms of a different element
They are used for absolute dating of samples
A Half of the stoms decay during one haline
C
Answer: C
Explanation:
Answer:
Its A
Explanation:
I just did the A-P-E-X
Need Answer ASAP only 3 min
Answer:
H.
Explanation:
other ones don't match up with the correct functions.
monster genetic lab
anyone?? it’s important
Answer:
Monster genetic lab is important because it is usés for testons or DNA etc
When a chemical reaction releases more energy than it absorbs ?
Answer:
Exergonic reaction, it can be caused by help of enzymes.
Explanation:
I'm smart
18) When a population becomes larger than its carrying capacity, which one of the following may occur?
A) The death rate may fall.
B) The birthrate may rise.
C) The migration rate may rise.
D) None of the above
Answer:
The birthrate may rise.
Explanation:
If there are an increase in numbers, then obviously the amount of births will rise.
what type of energy does a bike use to move
Answer:
Kinetic energy
Explanation:
a bicycle can convert up to 90 percent of person's
energy and movement into kinetic energy
Answer:
Kinetic energy
Explanation:
The bike is in the ground making contact with the speed source. In which it’s kinetic energy
A student who studies the sizes of groups of birds records data for this group of ducks Which 2 terms describe the type of data the student records A. Quantitative B. Qualitative C. Continuous D. Discrete
Answer:
The correct option is A and C.
Quantitative and continuous
Explanation:
It is quantitative and continuous because A quantitative data is a data that it's value can be represented with numerical values or numbers or they are data that can be counted in numbers.
Continuous data is a quantitative data that can be divided into several parts and can take different values. It can be measured and represented in numbers.
Please help and please do not copy and paste from google and please use your own word ->Density is
Answer: Density is a measure of mass per unit of volume
Explanation:
The average density of an object equals its total mass divided by its total volume. An object made from a comparatively dense material (such as iron) will have less volume than an object of equal mass made from some less dense substance (such as water).
Explanation:Density is like a some measore of mass for unit now the average of some object equal like a mass divided by a total volume. now i know that ab object made from a dense material it could be the iron if that material is make it of iron it will going to have less volume than other object made from another less dense subtance (it could be the water)
(hope this help u i also use gramarly :) )
An increase in body fluids leads to an increase in kidney filtration which leads to an increase in kidney output (urine). What type of feedback is this?
Answer:
Positive feedback.
Explanation:
An increase in body fluids causes increase in kidney filtration which leads to higher production of urine, this type of feedback is known as positive feedback because when there is increase in the output, this is called positive feedback while on the other hand when there is decrease in the output we called it negative feedback. So we can see that the output of the kidney is higher concentration of urine so we can say that it is a positive feedback.
PLEASEEE HELP!!!!! The position of Earth in space compared with other bodies, such as the sun and moon, determines many characteristics of the hydrosphere. Describe how it causes the following:
a. The existence of liquid water on Earth (2 points)
b. Tides (2 points)
Does chlorophyll absorb green light?
I was wondering if it was a yes or no answer
Answer: no, it reflects it
Explanation:
Answer:
no it does not absorb green light
Explanation:
Help please I have no time
The model shows a cellular process that occurs in every cell in eukaryotic organisms.
What is the purpose of the process shown?
Answer: the breakdown of certain food in the mitochondrion?
Explanation:
Which part(s) of your eye change light to electrical impulses?
Answer:
Light passes through the front of the eye (cornea) to the lens. The cornea and the lens help to focus the light rays onto the back of the eye (retina). The cells in the retina absorb and convert the light to electrochemical impulses which are transferred along the optic nerve and then to the brain.
Explanation: