Answer:
active transport
Explanation:
Active transport is the movement of particles from a region of low concentration to a region of high concentration against the concentration gradient that requires energy.
Mitosis results in daughter cells that are
Choose the word or phrase that best fills the blank
the parent cell.
1) the same as
2) different from
21. In 1960, an invasive species of fish was introduced into the stable ecosystem of a river.
Since then, the population of a native fish species has declined. This situation is an example of
an
1) Ecosystem that has recovered
2) Ecosystem altered through the activities of humans.
3) Environmental impact caused by physical factors
4) Ecological niche without competition
Why a stent is used in the treatment of atherosclerosis in a coronary artery
The stent holds open the narrowed arteries to allow adequate blood to flow to the heart.
A trout moves from a warm environment into a cold environment. Predict how the saturation status of hydrocarbon chains might change to ensure proper membrane fluidity in the new cold environment.
Answer:
The correct answer is - The hydrocarbons would become less saturated to increase the fluidity of the membrane
Explanation:
The ratio of saturated and unsaturated fatty acids or hydrocarbon chains is responsible for the membrane fluidity at cold temperatures. Cholesterol is an important part of membrane fluidity as it functions as a buffer, it inserts in phospholipids to preventing lower temperatures from inhibiting fluidity and at higher temperatures stabilizes the cell membrane and increase melting point and prevent increasing fluidity.
Moving from high temperature to low temperature hydrocarbon chains become less saturated in order to increase fluidity as it inserts cholesterols into phospholipids and decrease saturation.
Which of the following is not a source of genetic variation?
A
sexual reproduction
B
asexual reproduction
C
mutations
D
crossing over during meiosis I
Which of the following is not one of the seven primary odors humans recognize?
fresh
putrid
pungent
roses
Answer:
roses
Explanation:
It occurs when an odor binds to a receptor within the nasal cavity, transmitting a signal through the olfactory system.2 Glomeruli aggregate signals from these receptors and transmit them to the olfactory bulb, where the sensory input will start to interact with parts of the brain responsible for smell identification, memory, and emotion.3
There are many different causes for alteration, lack, or disturbance to a normal sense of smell, and can include damage to the nose or smell receptors, or central problems affecting the brain. Some causes include upper respiratory infections, traumatic brain injury, and neurodegenerative disease.
Answer:
Fresh
Explanation:
When you look at the chartr, Roses were cconsidered a floral scent, which was listed, then there was putrid, pungent, and 3 others, the only one that wasn't listed was fresh, because often out scent and taste work together to help us find rotten foods, but we find that by smelling putrid scents or pungent scents, rather than fresh scents. Therefor the correct response is fresh
the four most common chemical elements found in living matter are
1,C,H,O,P
2,C,H,O,N
3,C,H,N,P
4,C,H,O,S
5,C,H,O,Ca
Explanation:
In all living system we can always find basic elements carbon, oxygen, nitrogen and hydrogen, carbon is the basic building unit contained in living matter. The percentage of carbon in the mass of living matter is 19.0% oxygen and hydrogen are present in almost all organic compound which creates living organisms.
Are your two DNA strands similar? How do?
PLEASE HELP ME!!
Mental illness is:
A. seen usually only in large metropolitan areas
B. common
C. very rare
D. found only 1 out of 100 adults
AP_EX - *PSYCHOLOGY*
Answer:
B
Explanation: Unfortunately it's common for people .
what do the results suggest about ways that milkweed bug populations are limited in nature?
Answer:
Temperature.
Explanation:
Temperature was the only limiting factor that controls and limits the size of the population of milkweed bug in the nature because these milkweed bug are very sensitive to temperature. Little increase or decrease in temperature can cause adverse effect to the population f milkweed bug in that environment. Milkweed bugs need food, water, space, shelter and a mate in order to survive a well as increase in population of milkweed bug.
Can someone help me if this is correct
Answer:
I think your answer is wrong. The right answer is D. Nucleus & Ribosome.
Explanation:
A process that takes place in the cells of all living things: the production of proteins. This process is called protein synthesis, and it actually consists of two processes — transcription and translation. During translation, the genetic code in mRNA is read and used to make a protein. These two processes are summed up by the central dogma of molecular biology: DNA → RNA → Protein. In eukaryotic cells, transcription takes place in the nucleus. During transcription, DNA is used as a template to make a molecule of messenger RNA (mRNA). The molecule of mRNA then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs.
The nucleus contains the cell's DNA and directs the synthesis of ribosomes and proteins. Typically, the nucleus is the most prominent organelle in a cell. Eukaryotic cells have a true nucleus, which means the cell’s DNA is surrounded by a membrane. Therefore, the nucleus houses the cell’s DNA and directs the synthesis of proteins and ribosomes, the cellular organelles responsible for protein synthesis.
project of science.
Explain the parts and their function of the brain ?
Explanation:
The human brain has following main parts:
1. Cerebrum:
It is also called big brain.
It is the centre of intelligence, memory, imagination and emotions.
It is responsible for ordinary senses.
Injury in cerebrum causes coma .
2. Medulla oblongata:
It is the lower most part of the brain.
It receive and integrates signals from spinal cords and sends resulting impulses to the cerebrum and cerebellum.
3. Cerebellum:
It is called as Small brain.
It makes body movement smooth and steady.
It maintains equilibrium and controls the body posture.
How can topsoll be replaced in an area that has been strip-mined?
O A) Vegetation will quickly form topsoil.
OB) Stockpile topsoil from the area before strip mining.
O C) Use mine waste for topsoil.
O D) Use crushed rock from the mine.
Answer:
I'm sure you meant to type "topsoil" but the answer to the question is B
6. ¿Cuál de las siguientes moléculas está formada por
glicerol y ácidos grasos?
Azúcares
Almidones
Lípidos
O ácidos nucleicos
Answer:
Lípidos
Explanation:
Atoms are the most basic unit of matter. Two or more atoms from the same or different elements can combine to form molecules.
Cells are the most basic unit of life. Cells are made up of many different types of molecules. Which of the following accurately shows higher levels of organization within organisms, from least complex to most complex?
A. cells → organs → organ systems → tissues → organism
B. cells → tissues → organs → organ systems → organism
C. cells → organ systems → organs → tissues → organism
D. cells → organs → tissues → organ systems → organism
PLZ EXPLAIN WHY THE OTHER ANSWERS R INCORRECT
Sometime between 22 and 26 weeks, a. a fetus has a chance of survival outside the womb. b. the external genitals are formed. c. synchrony between the fetal heart rate and motor activity peaks. d. vernix and lanugo begin to cover the skin.
Answer:
The answer is a) a fetus has a chance of survival outside the womb.
Sometime between 22 and 26 weeks, a fetus has a chance of survival outside the womb.
Which of the following consists of an amino group, a carboxyl group, and a
side chain?
A. DNA
B. An amino acid
C. A nucleotide
D. A carbohydrate
Answer:
An amino acid
Explanation:
¿Cómo defines a una Célula Haploide?
Answer:
La mitad de cromosomas.
Explicación:
Las células haploides se refieren a aquellas células que tienen la mitad de cromosomas. Estas células haploides se forman debido a la división celular de la meiosis. En la división celular de la meiosis, una célula madre se divide en cuatro células hijas que tienen la mitad de cromosomas. Estas células haploides están presentes en los espermatozoides de los gametos masculinos y femeninos, que se fusionaron formando células diploides que tienen el doble de cromosomas. El cigoto formado debido a la fusión de espermatozoides y óvulos son de naturaleza diploide.
change to passive voice:the police caught the boy red handed
If H X G means H is to the South of G
H + G means H is to the North of G
H ÷ G means H is to the East of G
H-G means H is to the West of G
Then, in A÷ B +C-D; D is in which direction with respect to B.
a)North
b)South
c)North-East
d)South – East
Answer:
C. North-East
Explanation:
North" (and any subsequent words) was ignored because we limit queries to 32 words.
(Reply with the answer or get reported) Ty to whoever answers me :]
Answer:
Allele frequency
Explanation:
Traditional African marriage is an advantage for men only, not women
Answer:
Explanation:
Traditional marriage is an advantage to men only because they are the only ones who allowed to marry more than one wife (Polygamous) which makes women to be vulnerable. Yet the women are not allowed to be in polyandrous.
Explain El Niño, how it's identified, and its potential negative impacts.
Answer:
HE IMPROVED THE WORLD BY GIVING SOMTHING THAT IT DID NOT HAVVE
Explanation:
ENJOY :)
In the Linnaean system, birds and reptiles are each classified in a separate class. However, in the modern system, birds are members of the clade Reptilia. Which conclusion, based on evidence, did scientists cite to revise the classification of birds
Answer:
Birds descended from the most recent common ancestor of reptiles. Scientists recently revised the classification of the red panda (Ailurus fulgens).
Which type of bond is the strongest?
A. lonic
O B. Covalent
C. Metallic
D. Hydrogen
Answer:
A
Explanation:
The two strongest bonds are ionic and covalent, but generally, ionic is viewed as the stronger bond because of the ion-ion force that occurs within the bond. It does depend on other factors though.
What is NOT a function of the
nucleus?
A. Directs protein synthesis
B. Houses DNA
C. Functions as the powerhouse of the cell
Answer:
function as the powerhouse of cell
Explanation:
we have read the power house of cell as a mitochondria
==========================================================
Explanation:
The mitochondria is responsible for generating the cell's energy, hence the phrasing "the mitochondria is the powerhouse of the cell".
The nucleus holds the DNA, so we can rule out choice B. The DNA in turn is connected to forming the proteins. The actual protein synthesis happens in the ribosomes, but the DNA is used as a blueprint (more or less) to assemble the correct amino acids in the correct order to form the complicated protein chains. In short, the nucleus indirectly helps direct the protein synthesis, so we can rule out choice A.
Will pigs ever fly?
Support your answer with suitable examples.
Answer:
NO
Explanation:
the pigs will never be able to fly as the birds have:
wings – these enable the force of lift.
lightweight, smooth feathers – this reduces the forces of weight and drag
streamlined body – this helps reduce the force of drag (a shape that lowers the friction drag)
light bones – a bird’s bones are basically hollow with air sacs and thin, tiny cross pieces to make bones stronger – this reduces the force of weight
Meanwhile the pig is obviously heavier, having a stronger force of gravity, and does not have the same type of "lightweight" bones that the birds have.
Answer:yes they might
Explanation:
Birds are able to breed with pigs and pigs might get wings
What is/are the advantages of using nuclear power? CHOOSE ALL THAT APPLY
A) A small amount of fuel can
give a large amount of
energy
B) Generating electricity by
nuclear power produces
radioactive nuclear waste,
C) Generating electricity by
nuclear power gives off no
air pollutants
The tap water is having a pH of 10
True or false
Answer: True
Explanation: Tap water is made slightly alkaline because acidic water could corrode metal pipes. It depends on country how high pH is. In some countries, where metal pipes are widely used pH could be even 10
help extra points rellay important
Answer:
Option A, Saliva
Explanation:
a.) Saliva = watery fluid, secreted into the mouth by the salivary glands, that functions in the tasting, chewing, and swallowing of food.
b.) Mucus = a thick liquid produced inside the nose and other parts of the body.
c.) The Tongue = the large, soft piece of flesh in the mouth that you can move, and is used for tasting, speaking.
d.) The Epiglottis = a thin cartilaginous flap that covers the entrance to the larynx during swallowing, preventing food from entering the trachea.
Hope this helps!
Answer: A
Explanation: Have a great day!!