20. Does facilitated diffusion require energy for the cell?
Answer: no
Explanation: The solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. This process is called passive transport or facilitated diffusion, and does not require energy.
A group of students is setting up a test to see whether earthworms like those shown in the photo prefer rough or smooth surface which type of investigation is the group A group of students is setting up a test to see whether earthworms like those shown in the photo prefer rough or smooth surface which type of investigation is the group doing
Answer:
There is no attached photo in this question, however, the question can still be answered. The question also lacks options; they are
A.Comparative B. Descriptive. C. Controlled. D. Experimental
The answer is D. Experimental investigation
Explanation:
There are three types of investigations in science namely: descriptive, comparative, and experimental investigations. Experimental investigations are those investigations that has to do with the testing of how one variable affects another.
In an experimental investigation, a variable called INDEPENDENT VARIABLE is changed to effect a response in another variable called DEPENDENT VARIABLE. In this question, a group of students is testing to see if earthworms prefer rough or smooth surface. Hence, they are testing to see how texture of a surface (rough or smooth), which is the independent variable affects the preference of earthworm. Hence, it is an EXPERIMENTAL VARIABLE.
Answer:
The answer is Comparative
suggest two features of humans that are caused by their genes and not affected by their environment
personality is one of them, i cant think of another sorry
Explanation:
The sun shining on a tidal pool during a hot day heats the water. As some water evaporates, the pool becomes saltier, causing.
As water evaporates off salt water, the water gets saltier, and dissolved oxygen in the water reduces.
Dissolved oxygen and solute concentrationThere is an inverse relationship between the dissolved oxygen in water and the concentration of solute.
Thus, as water evaporates off the tidal pool, available free oxygen decreases accordingly just as the water becomes more salty.
In other words, the more water in a solution, the more free oxygen, and vice versa.
More on dissolved oxygen and water can be found here: https://brainly.com/question/26113345
what cellular mechanisms allow human body cells to maintain these concentrations ?
Which of these
describes
acquired
immunity
A. the binding of antigen
and antibody triggering a
response of plasma and
memory b-cells to attack
B. t-cells and
macrophages fighting
infected cells that are non-
self or cancerous
C. our body remembering
pathogens it has fought off
or learning from vaccines
D. obtaining immunity
from an outside source,
like mother to baby
The statement that describes the acquired immunity is obtaining immunity from an outside source like mother to baby.
What is immunity?Immunity is the process by which the body defends itself against foreign bodies like pathogens.
Immunity can be of the following types:
Acquired immunityNatural immunityAcquired immunity is the type of immunity that is developed over a life time while natural immunity is inherently possessed.
Therefore, the statement that describes the acquired immunity is obtaining immunity from an outside source like mother to baby.
Learn more about acquired immunity at: https://brainly.com/question/1379924
Plants must take in carbon dioxide from the atmosphere in order to undertake photosynthesis. Which process contributes to the availability of carbon dioxide in the atmosphere?
A. Exhalation of air from an animal
B. Evaporation of water from a lake
C. Dissolution of nitrogen in the soil
D. Condensation of moisture in the air
respiration can continue the process of corbon dioxiod..
Which of the following is not true about plasmids?
a. They have a positive charge
b. They contain a promoter
c. They are double stranded
d. They are not the primary DNA
Please include an explanation as well, Thanks.
what are the characteristics of a frog ??
They do not have a tail and they have a webbed type of feet that helps them leap, they have smooth skin as well.
I will mark brainiest
Answer:
i would say solar energy
Which picture below shows an atom with 4 valence electrons?
A
Be
ОА
ОВ
o o o o
OD
The picture that shows an atom with 4 valence electrons is that of Beryllium (option B).
What are valence electrons?Valence electrons are any of the electrons in the outermost shell of an atom that is capable of forming bonds with other atoms.
The valence electrons of an atom are found in the outermost shell of the atom's electronic configuration.
According to this question, four images are displayed above. Beryllium is the element that shows that it contains four valence electrons in its electronic configuration.
Therefore, the picture that shows an atom with 4 valence electrons is that of Beryllium.
Learn more about valence electrons at: https://brainly.com/question/12717954
#SPJ1
Lysosomes are organelles that contain enzymes that speed up chemical
reactions. Which of the following is a function of lysosomes?
Answer:
D.) lysosomes break down lipids, carbohydrates, and proteins
prokaryotes, like bacteria, reproduce asexually through-
Answer:
mitosis
Explanation:
Which type of front most likely signals violent thunderstorms?
A cold front
B. warm front
C. stationary front
D. occluded front
What was Earth's early atmosphere like?
Without photosynthesis life as we know it would not exist on Earth.
True or False
Answer:
True
Explanation:
If photosynthesis ceased, there would soon be little food or other organic matter on Earth, most organisms would disappear, and Earth's atmosphere would eventually become nearly devoid of gaseous oxygen.
List two characteristics of igneous rocks that make them good
building materials.
what is responsible for the differences that can be seen between one organism and another of the same species.
A. genes
B. environmental factors
C. age of the organism
Answer: The answer is A - Genes.
Which of the following is the non-living part of the cell?
1 point
Cell membrane
Cytoplasm
Cell Wall
Centrosome
Answer:
As I think the answer is cell wall.
Answer:
cell wall
Explanation:
Cell walls are only found in the plant cells. They are made out of a non-living cellulose so that we say the cell wall is dead.
Which is NOT a
benefit of
biodiversity?
A. climate change
B. control of pests
C. clean air and water
D. control of soil erosion
Answer:
C. clean air and water
Explanation:
The reason why this is NOT a benefit of biodiversity is because Plants and Animals really like to mess things up, you know, they really just don't care about what they're destroying, so if there is a crocodile in the water, then it won't care about just playing with some mud, that's why, they make the water dirty, specially while attacking land animals that come to drink the water. Another thing is that they can just p.o.o.p which will not make anything better.
so hence, your answer is C. Clean air and water
Thanks!
Mark me brainliest!
Control of pest is not a benefit of Biodiversity. So, the correct option is B.
What is Biodiversity?Biodiversity is defined as the variety of life we would find in an area the diversity of microorganisms such as animals, plants, fungi, and bacteria that make up our natural world. Each of these species and organisms work together in an intricate web-like ecosystem to maintain balance and support life.
Biodiversity or biological diversity is described as the variety and variability of life on Earth as a measure of variation at the genetic, species and ecosystem levels. At the highest level, one can look at all the different species on the entire.
Thus, control of pest is not a benefit of Biodiversity. So, the correct option is B.
Learn more about Biodiversity, here:
https://brainly.com/question/13073382
#SPJ2
Which of these changes to the cell would cause the greatest reduction in the activity of catalase? A. A decrease in the concentration of hydrogen and oxygen B. An increase in the concentration of hydrogen peroxide C. A strong bonds between carbon atoms that cannot be broken D. Ionic bonds between carbon atoms and oxygen atoms
Answer:
A. A decrease in the concentration of hydrogen and oxygen
Explanation:
Catalase's function is to catalyze the decomposition of hydrogen peroxide (H₂O₂), which is a toxic substance for cells, into oxygen (O) and water (H₂O).
The following chemical reaction can represent the catalase enzymatic action:
2H₂O₂ + Catalase → H₂O + O₂
Due to this, as oxygen and hydrogen (H) are structurally essential for the catalase reaction, the decrease in the concentrations of these substances would also reduce the enzyme's action potential.
PLEASE HELP WILL MARK BRAINLIEST
Explain how viscosity is related to the flow and attractions of an atom in a liquid.
Answer:
The atoms of liquid upon contact experience a strong force of attraction. Due to this attraction, the atoms of liquid resist the flow of motion.
Explanation:
Answer: hi frind!!
The atoms of liquid upon contact experience a strong force of attraction. Due to this attraction, the atoms of liquid resist the flow of motion.
Explanation:
=^.^= text me!
What are the effects of the mass extinction of permian on marine organisms and insects.
Answer:
At the end of the Permian, conditions became unsuitable for most life and about 95% of marine species were eliminated as well as 70% of terrestrial species in a very short period of time, in geologic terms. It was also one of the few known mass extinctions of insects. Many plant species also went extinct.why are me and my twin brother twins
please answer this we are now questioning our existence
Olfaction and hearing are processed in the ____________.
Answer: Temporal Lobes
in the diagram below, the circles labeled canis represent all members of the genus canis, and the circles labeled familiaris represent all members of the species familiaris. which arrangement of circles best illustrates the relationship between the genus species of canis familiaris, the domestic dog
Answer:
The answer is option one or two. I'm struggling with this question too.
Explanation:
If a human with a chromosome number of 46 undergoes each process what number of chromosomes will be in each daughter cell?
Answer:
23 chromosomes
Explanation:
you just have to divide the original number by 2.
Draw a diagram of a cell in anaphase 2
please mark brainliest
An advantage of using animals from an established breeding farm over those from a breeding colony is that:
Answer:
Long division calculator with decimals shows the work step by step. Solve long division with decimal numbers. Calculate the quotient showing long division ...
Explanation:
Long division calculator with decimals shows the work step by step. Solve long division with decimal numbers. Calculate the quotient showing long division ...
Sorry
How was HMS Beagle's voyage significant to science?