When is facilitated diffusion necessary?
a.) When the molecules are too large.
b.) When the molecules are insoluble.
c.) When the direction of movement is opposite to natural diffusion.
d.) none of the above
Answer:
It is option C I think.. Not so sure but I think it's the right answer
Which primate group is classified as hominins
the group consists of modern humans, extinct human species, and all our immediate ancestors.
How can you indentify the difference between a chemical and physical change and what are signs that a chemical change has occurred
Answer:
Explanation:
The formation of a gas is a clue to chemical changes. The bubbles of gas that you observed form when an antacid is dropped into water is an example of change. ... After ice melts into liquid water, you can refreeze it into solid ice if the temperature drops. Freezing and melting are physical changes.
Answer:
chemical change changes the identity of a substance, while a physical change can just be observed. Some signs that a chemical change has occurred are, temperature change, forming bubbles, color change, new substance forming, there are more, but those are just some of which i now
Explanation:
hope this helped!!!<3
What is the function of the protein keratin?
to provide support and structure for cells in hair, skin, and nails
to fight infections caused by bacteria and viruses
to increase chemical reaction rates in the digestive system
to transmit chemical signals throughout the body
Answer: a. to provide support and structure for cells in hair, skin, and nails
Explanation:
Keratin - Wikipediaen.wikipedia.org › wiki › Keratin
Keratin (/ˈkɛrətɪn/) is one of a family of fibrous structural proteins known as scleroproteins. α-Keratin is a type of keratin found in vertebrates. It is the key structural material making up scales, hair, nails, feathers, horns, claws, hooves, calluses, and the outer layer of skin among vertebrates.
Why are people scared of germs
Q1) If a 6.0 kg bowling ball is rolled with a velocity of 3.5 m/s, what is the momentum of the ball?
Answer:
21
Explanation:
Momentum = mass x velocity
= 3.5 x 6
= 21
DNA samples from four different organism were analyzed using a procedure that seperares the DNA in each sample by size. What procedure was used to obtain these results?
Answer:
Gel Electrophoresis.
I took the Khan academy test :)
How can trees reverse climate change?
Answer:
As the trees grow, they help stop the climate change by removing carbon dioxide from the air, storing all the carbon dioxide in the trees and soil.
Explanation:
I hope this helps!! :)
Which two classification levels do we use in binomial nomenclature?
Answer:
descriptors or epithets
describe how and where carbondioxide enters the leafe?
Answer:Carbon dioxide cannot pass through the protective waxy layer covering the leaf (cuticle), but it can enter the leaf through an opening (the stoma; plural = stomata; Greek for hole) flanked by two guard cells. Likewise, oxygen produced during photosynthesis can only pass out of the leaf through the opened stomata.
Explanation:
Why can't we use the oil immersion lens on live cells?
identify three ways flowering plants can be adapted to
different environments. (PLEASE HELP!!)
Which of the following statements is not true for the urinary system?
With age, incontinence is a progressive problem.
The bladder has a diminished capacity because of atrophy, decrease in size, and decrease in elasticity with age.
Renal function does not change as adults move into later adulthood.
Renal function declines as people move into later adulthood.
Answer:
With respect to the urinary system, it is not true that renal function does not change as adults move into later adulthood.
Explanation:
As a process associated with aging, renal function can be affected by later adulthood, including the process of cellular aging, and multiple factors that can affect long-term kidney activity.
At the renal level it is possible to find processes of sclerosis, fibrosis, atrophy, chronic inflammation among others. The other structures of the urinary system can suffer structural alterations that, in the long term, affect renal function.
For this reason it is not correct to say that moving into later adulthood does not change renal function.
If correct Brainliest will be given.
Answer:
B
Explanation:
The graph is decreasing. I think
If correctly answered I will give out Brainliest.
Answer: D
Explanation: A = Thrust
B=Lift
C=Drag
D=Gravity
What is most always in this world, there are always exceptions, but I
diverge) BUT MPST ALWAYS the ending of an enzyme's name?
-ose
-ise
-ase
-use
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#teamtrees
Please support the cause. If we all plant a tree, just 1 each, even 1 per family, it will save us from the future that global warming will bring us without these trees. plant a tree today and say to yourself, "wow i just planted a tree for a very important cause, and i saved someone's life today!"
===================================================================
Answer: So tlm ( Trees lifes matter) alr aye!!!!!!!
Explanation:
According to the video, what challenges do Elementary School Teachers commonly face? Check all that apply.
angry parents
small classes
large classes
difficult children
shortage of textbooks
Answer:
C,D,E
Explanation:
took the test passed
Answer:
C and D
Explanation:
you could've just answer the question.
Question: Characteristics of styrofoam cup before placing it in water
Subject: Science
Styrofoam cups are utensils made of polystyrene foam that are used for drinking purposes. The physical properties of the cups before placing in water are firm and hard in shape.
What are physical characteristics?Physical characteristics are the properties that are not manifested by the chemical reactions and include the measurable and visible state, including conductivity, hardness, solubility, shape, malleability, melting points, color, etc.
Styrofoam cups are thermoplastic which allows them to remain solid at RT and liquid at the boiling point. They can be arranged and molded into various shapes and sizes according to the need.
The cups are stiffer and stronger before they are placed in water, but after they are placed in water they lose their firmness and become soft.
Therefore, the styrofoam cups are solids and a little firm before placing in water.
Learn more about physical characteristics, here:
https://brainly.com/question/24632287
#SPJ2
How can you tell the difference between alternate and opposite leaf arrangements?
They are based on based whether the leaf pinnate or palmate venation.
They are based on based whether the leaf has one or two leaves at the node.
They are based on based whether the leaf has a smooth or toothed margin.
They are based on whether the leaf is simple or compound.
Answer:
They are based on based whether the leaf has one or two leaves at the node.
Explanation:
Answer: They are based on based whether the leaf has one or two leaves at the node.
Explanation: You can tell the difference between alternate and opposite leaf arrangements based on whether the leaf has one or two leaves at the node. Alternate leaf arrangement is when a single leaf is attached at one location on the stem, the node, in an alternating pattern. On the other hand, the opposite leaf arrangement is when two leaves are attached to the same node on opposite sides of the stem.
Plant height, leaf shape, and flower color are all examples of what in plants
Answer:
inherited traits
Explanation:
Help please!
Students who like information presented to them in a sequential order likely think with what part of their brains?
A. back brain
B. front brain
C. left brain
D. right brain
Answer:
b
Explanation:
Which best lists the end products of the light-dependent reactions of photosynthesis? ATP and NADPH CO2 and H2O ATP, NADPH, and O2 C6H12O6 and O2
Answer:
C. ATP, NADPH, and O2
Explanation:
took the test on edge
Answer:
The correct answer is c
Explanation:
I just took the quiz on edge
The survival of some plants depends on their ability to have seeds transported to a favorable envioronment. what are the different ways seeds can be transported from one location to another?
Answer:
the wind can carry the seeds flowing water can carry seeds to different places some seeds can get stuck on people's clothes or on the fur of animals some seeds can be eaten by animals and dropped new places in their droppings
Explanation:
Hope this helps!
I have a question regarding construction building code ? can you help?
What is the benefit of having carbohydrates in the form of glycogen?
Answer:
Carbohydrates help preserve muscle
Explanation:
When glucose from carbohydrates is lacking, muscle can be broken down into amino acids and converted into glucose or other compounds to generate energy.
What is found in the medullary cavity of an adult long bone?
1. Red bone marrow
2. Fat
3. Calcium
4. Blood vessels
The answer is .......
a) Red bone marrow
Which 3 of the following are the main ideas of the Cell Theory?
Cells come from pre-existing cells.
The cell is the basic unit of life.
All living things are made of one or more cells.
All living things are multi-cellular.
All cells have membrane bound organelles.
(20 point) {brainliest} please help meeee
A person is sitting with his hands in his lap, palms down. Which of the following statements is true?
A. The palms are on the inferior surface of the hand.
B. The palms are on the posterior surface of the hand.
C. The palms are on the anterior surface of the hand.
D. The palms are on the dorsal surface of the hand.
STATION 4 Cell Theory Select the answer choice with increasing levels of organization. R. Tissue, Organ System, Organ, Population S. Cell. Tissue. Organelles, Organ System T. Cell. Tissue, Organ, Organ System V. Organ System, Organ, Cell, Tissue
Answer:
The answer is S.
