Why is the cell membrane considered selectively permeable? Because some materials can come in and some materials must stay out Because some materials can come in and some materials must stay out Because it forms a barrier where all materials can get through Because it forms a barrier where all materials can get through Because it forms a barrier where no materials can get through Because it forms a barrier where no materials can get through
Answer:
Because some materials can come in and some materials must stay out
Explanation:
Cell membrane is a structure that covers or bounds the cytoplasmic layer of every living cell. It is made up of mostly lipids. According to this question, it is regarded as selectively permeable. This means that it selects what goes into the cell and what comes out.
The cell membrane is capable of this because of its amphipathic nature i.e contains both hydrophilic and hydrophobic regions. Because the cell membrane controls what goes into the cell and what comes out of the cell, it is referred to as selectively permeable as some materials can come in and some materials must stay out.
I can conclude that the mineral that the scientist found is harder than chalcopyrite, pyrite, and orthoclase, but not harder than quartz. I can also conclude that the unknown mineral is a relatively hard mineral. Which ideas did you include in your answer? Check all that apply.
Answer:
B
Explanation:
Answer:
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBb
Explanation:
B
Which group of stars increase in brightness as they increase in temperature?
A) Supergiants
B) Giants
C) White dwarfs
D) Main Sequence
In dogs, curly tails are dominant over straight tails. If a pure curly-tailed dog is mated with a straight-tailed
dog, what percentage of their offspring will have curly tails?
Answer:
Explanation:
50% cause curly tails are dominate
The narrator states that Dr. Taylor's work seems like it's from the "realms of science fiction." What did she mean by this statement?
Answer:
Growing organs and new body parts in a lab isn’t currently possible with modern medicine. Until now, we’ve only seen this kind of experiment prove successful in fictional stories and movies. If Dr. Taylor’s experiment is successful, it’ll be a huge leap forward for modern medicine.
Answer:
Growing organs and new body parts in a lab isn’t currently possible with modern medicine. Until now, we’ve only seen this kind of experiment prove successful in fictional stories and movies. If Dr. Taylor’s experiment is successful, it’ll be a huge leap forward for modern medicine.
Explanation:
I NEED ANSWER BY TONIGHT!!! (10 POINTS!!!!!!!!)
What is NOT an advantage of asexual reproduction?
1. requires less energy
2. requires only 1 parent
3. quick process
4. variation of genetic traits
Answer:
uhh if its asexual reproduction then 4. isnt true. there are no variations since its just basically the cell splitting.
Explanation:
Traits are determined by the sequence of nucleotides in DNA
O
True
O False
Answer: false
Explanation:
When does genetic mutation occur
Please help me answer this
Answer:
lipids
Explanation:
lipids also can contain sulphur (C, H, O, N, S, P)
In the diagram below, which part of the human brain handles processes such
as thinking, hearing, and movement?
B
O
A. Both B and C
B. B only
C. Both A and C
OO
D. A only
Answer:
There is no diagram below
Explanation:
You freeze an enzyme and then warm it gently without passing the optimum temperature. What will happen to its activity
A. The activity will speed up then decrease to zero
B. The activity will speed up
C. Activity will not be affected at all
D. There will be no activity
Answer:
B. The activity will speed up
Explanation:
As temperature increases, enzyme activity increases (until is passes the optimum temperature)
How many numbers of parents contribute jeans to the blue headed Wrasse
In which type of environment are plants most likely to use a C4 pathway of carbon fixation?
cold and wet
cold and dry
hot and wet
hot and dry
Answer:
I would try the third one
When sugar is made by the plant, it doesn't go to waste if the plant doesn't need to use it immediately. It is stored in plants as a molecule called _____, which is just a bunch of glucose molecules bonded together in a particular way.
Answer:
Excess sugar is stored as Starch
Explanation:
Excess sugar is stored as starch in the roots of a plant
Answer:
Sugar is stored as starch or glycogen
based on the information above, which of these would most likely be affected by a global warming?
Polar bear living on the ice sea.
imprinting is a type of _ behavior
A. Reflex
B. learned
C. Instinct
D. inherted
Answer:
B.) Learned
Explanation:
Key points. Habituation is a simple learned behavior in which an animal gradually stops responding to a repeated stimulus. Imprinting is a specialized form of learning that occurs during a brief period in young animals—e.g., ducks imprinting on their mother.
Answer:
B Learned
Explanation:
I got it right on a quiz
I need help quick please
Answer:
D
Explanation:
The population density would be 20 / 5 = 4 mice per m².
How does hydrologic cycle depend on carbon,nitrogen,and phosphorus cycle
What is the role of bacteria and lightning in the nitrogen cycle ?
Answer: Atmospheric Fixation
The enormous energy of lightning breaks nitrogen molecules and enables their atoms to combine with oxygen in the air forming nitrogen oxides. These dissolve in rain, forming nitrates, that are carried to the earth.
PLS HELP ASAP WILL GIVE BRAINLIEST!!!
What happens to particles in a solid when heat is applied? (3 points)
a
They move around more.
b
They get closer together.
c
They reduce in size.
d
They stop moving.
In what organelle does cellular respiration occur
Answer:
cytoplasm and mitochondria i believe
Answer: Mitochondrion or how i would say the one that looks like a cheeto puff but yea its the mitochondrion
Water pollution is caused by ______.
Answer:
Water pollution can be caused in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources of water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain.
Which statement explains what happens at the water table?
Water rises to a place above the surface where people can collect it and use it for drinking water.
Materials such as clay or granite prevent water from seeping into the ground at the water table.
A boundary forms between an area filled with water and an area with both moisture and air.
Water from rivers, lakes, and streams seeps into the ground and saturates it to reach the water table.
Answer:
1.
Water rises to a place above the surface where people can collect it and use it for drinking water. Materials such as clay or granite prevent water from seeping into the ground at the water table. A boundary forms between an area filled with water and an area with both moisture and air.
Answer:
the answer is C
Explanation:
an experiment is carried out to determine how different pH values of soil will affect the growth of tomato plants in this experiment the development variable could be the
Answer:its the tomato
the pH is what is going to effect the growth of tomatoes the higher pH levels should effect it the most possibly even kill it while the regular soil should not effect it to much.
Explanation:
Why is the arch shape and the keystone at the top of the arch a fitting analogy for what Robert Paine observed?
19. How does a unicellular paramecium get rid of its excess water? Is
energy used?
Answer:
Paramecium and amoeba live in fresh water. Their cytoplasm contains a greater concentration of solutes than their surroundings and so they absorb water by osmosis. The excess water is collected into a contractile vacuole which swells and finally expels water through an opening in the cell membrane.
Explanation:
I need help please...
1. Does respiration occur in (a)lungs, (b)heart, (c)trachea (d)lungs (e)arteries, or (f)veins? Explain your answer.
Answer:
(a) lungs
Explanation:
The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.
In the United States, alcoholic beverages that are sold in stores display a government warning stating that pregnant women should not drink alcoholic beverages. This is because it prevents cleavage division from occurring, so a zygote cannot become a blastocyst. if a woman drinks alcohol while she is pregnant, she may not be able to ovulate again after childbirth. studies have proven that alcohol consumption causes long-lasting disorders in the fetus. the science of chemistry has shown that alcohol is a reactive substance that may interfere with the mother’s food digestion.
Answer:
The correct answer is - studies have proven that alcohol consumption causes long-lasting disorders in the fetus.
Explanation:
Alcohol can cross the barrier that the placenta creates between the mother and fetus so the alcohol can negatively impact the fetus or newborn by various means.
It can harm the fetus as it may result in damage to the cells of the fetus. Brain cells and spinal cord cells are prone to such kind of alcohol toxicity or syndrome. Alcohol spectrum disorder that affects the development of the baby which could be long-lasting.
Answer:
studies have proven that alcohol consumption causes long-lasting disorders in the fetus.
Explanation:
Carbon atoms typically make
bond(s) in a molecule.
a
four
b three
c
one
d
two
Chat
The answer is a. four
Explanation:
hope this helps
Can someone please help me...
Answer:
Pretty sure it's D. Could be wrong tho.
Answer:
Write the names of the cells
Explanation:
I've just done that literally on monday