Answer: I believe it is B.
Explanation:
The cell membrane protects the cell's interior, provides support and maintains the cell's shape. It also controls what enters and leaves the cell. I hope this helps!! :)
The cell membrane separates the intracellular space from the extracellular space. It controls what enters and leaves the cell. The correct answer is option B.
The term "plasma membrane" also refers to the cell membrane. It is the cell's outermost layer in animals. It is a membrane made of lipids and proteins that is semi-permeable. Between the outside environment and living systems, there is a plasma membrane. The plasma membrane regulates the movement of solutes and solvents between the cell and its surroundings. A plasma membrane's permeability properties include semi-permeability, impermeability, permeability, and selective permeability.
Therefore, the main function of the cell membrane is to control the entry and exit of materials in the cell. The correct answer is option B.
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In an experiment, a snail was observed to have moved a distance of 0.5 meters in 2 hours. What rate of movement was observed in this experiment?
The rate of movement was observed in this experiment as 0.25 m/ hour.
How, explain your answer?A rate of movement is essentially a speed measurement, where you divide the distance crossed from point A to point B by the time it took to do it.
o, we know the snail moved a total distance of 0.5 meters. that's our distance crossed.
We know that took 2 hours. so we just have to calculate that:
0.5 meters / 2 hours = 0.25 m/hour
Thus, The rate of movement was observed in this experiment as 0.25 m/ hour.
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2. Which graph represents the change in cell surface area to volume ratio [1 mark]
with increasing cell diameter?
A.
B.
Surface area : volume ↑
Surface area : volume
Cell diameter
C.
Surface area : volume
Surface area : volume
Cell diameter
Cell diameter
D.
v
Cell diameter
A graph which represents the change in cell surface area to volume ratio with an increasing cell diameter is graph C.
The ratio of surface area to volume.Generally, the ratio of cell surface area to volume in living organisms is always required to be very small, so as to allow sufficient materials such as food particles, to move through the cell membrane quickly for the cell's survival and optimum function.
When plotted on the cartesian coordinate, a graph which represents the change in cell surface area to volume ratio with an increasing cell diameter is shown in the image attached below.
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deserts savannas and taigas are all examples of what biome.
Answer:
Terrestrial Biome Examples. Terrestrial biomes include tropical rainforests, temperate forests, grasslands, deserts, tundra, taiga, savanna and chaparral.
Explanation:
Answer:Terrestrial Biome
Explanation:im just smart like that you feel me
lamarcks theory of evolution includes the concept that new organs in a species will appear as a result of
Answer:
continual increases in population size
Explanation:
example
giraffes necks getting longer
quizlet
What are the correct boxs?
Answer:
1. A. Vapour
2.B. Liquid Reservoir
3.C. Solid Reservoir
4.D. Evaporation
5.E. Precipitation
6.F. Ground water
7.G. Infiltration
8.H. Run-off
9.1. Condensation
Information is carried from the central nervous system to the body's tissues by
0 1) interneurons.
2) sensory neurons.
O 3) motor neurons.
O 4) the limbic system.
Motor neurons are responsible for taking information from central nervous system to the body's tissues, i.e., option 3 is correct.
What are motor neurons?Specialized type of brain cell called neurons located within the spinal cord and the brain is referred to as motor neuron.
Motor neurons are responsible for taking information from central nervous system to the body's tissues.
Thus, the correct option is 3.
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Do you think that the heart muscle has the same structure as the arm muscle?
Answer:
No.
Explanation:
Heart muscles are involuntary muscles, so you can't control them. You can, however, control arm muscles. They are called voluntary muscles.
In photosynthesis, light energy is_________
O captured as thermal energy.
O released as usable energy.
O stored as short-term energy.
O stored as chemical energy.
Answer: O stored as chemical energy.
Explanation:
In photosynthesis, light energy is stored as chemical energy. Plants use this chemical energy to convert water, carbon dioxide, and minerals into organic compounds. They capture light energy to produce oxygen and chemical energy stored. This chemical energy is stored in glucose.
A plant can have green (G) or yellow (g) leaves. It can also have a long (K) or
short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross
of a plant with a genotype GgKk. What possible gametes can the plant
produce?
O A. GK, Gk, gk, gK
• B. GK, GG, KK, kK
• C. GK, Gk
O D. GK, gk
The possible gametes the plant can produce would be GK, Gk, gK, and gk. The correct option is A.
Gametes formationIn order to determine the possible gametes from the parent with the genotype GgKk, we need to cross the two traits in a monohybrid cross.
Thus: Gg x Kk
GK Gg gK gk
Thus, the possible gametes are GK, Gg, gK, and gk.
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What trait is recessive in the picture
Shortness is the recessive trait
The 4 types of microscopes, their descriptions, and an example use are:
Answer:
1compound Light microscope
stereoscopic
transmission electron
scanning electron
(40 points) Look at the diagram below. Which animals are most closely related? Which animals are least closely related? Explain your answer.
Answer:
The most closely related are amphibians and reptiles.
The least related are amphibians and mammals
Explanation:
Amphibians broke off from reptiles, birds, and mammals around 260 millions years ago and next up are the reptiles which broke off around 225 million years ago. So they are the most closely related
Mammals are the last to break off, around 200 million years ago. So they are the least related to amphibians.
Two moths of the same species are colored the same shade of brown and inhabit the same forest. One has the genotype BB and the other Bb. Their genotypes are different; their survival rate could be expected to be
a. the same since natural selection works on phenotype
b. different since natural selection works on genotype
c. the same since genotype and phenotype do not matter in natural selection
d. different since natural selection works on phenotype
Answer:
A. the same since natural selection works on phenotype
Explanation:
Natural selection acts on the phenotype, not the genotype. But it can cause changes in the genotype.
a human baby is born with one x chromosome and one y chromosome. what must be true about the baby
Answer:
The baby is a male?
Explanation:
Baby girls only contain XX chromosomes. While baby boys contain XY chromosomes.
One possible reason for the rise in the average air temperature at the Earth's surface is that
Answer:
cimate change
Plants in which division can live as long as 1500-2000 years?
Joint Firs are the plants in which division can live as long as 1500 to 2000 years.
Which of the following is the most important reason that a scientist should
replicate his or her experiments?
OA. To make sure that differences in the data are caused by real
differences and not by error
OB. To make sure that other scientists do not have to waste time
replicating this scientist's experiments
C. To practice the experimental procedures until the scientist is an
expert at performing them
D. To prove the scientist's hypothesis
Answer:
D. the only method of scientific investigation is in essence demonstrating the hypothesis is valid through repeated and more vigorous investigation using sound experimental techniques to produce the same or very similar results, ideally obtained from larger scale longitudinal studies, increasing sampling size and scale to lend greater and greater quality data on any query
What happens during S Phase?
A. Cytoplasm is manufactured
B. The Cell splits in two
C. DNA separates into two nulclei
D. Chromosomes are duplicated
Doing activities that makes you happy or center around things you like can cause you to
Engaging in activities that makes you happy or centers around things you like would help to increase your problem-solving skills.
What is behavior modification?Behavior modification can be defined as a therapeutic process that changes any undesirable negative behavior in an individual, especially through the use of positive or negative consequence and biofeedback.
In Psychology, when an individual engages in activities that makes him or her happy or that centers around things he or she like, it would help to increase their problem-solving skills and creates greater flexibility in their brain.
In conclusion, it's very important and essential for everybody to engage in activities that make them happy or that centers around things they like.
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3. Meiosis is a process that occurs during cell division that leads to the production of gametes It halves the number of chromosomes that can be passed on to an offspring. It also produces new combinations (variations) of an organism's genetic material Use evidence you obtained from modeling meiosis to show that both statements are true
Answer:
reproduction
Explanation:
different traits
transportation of seedling is not done for
1 rice
2 maize
3 onion
4 brinjal
Answer:
answer number 3 onion is correct answer
Do all fossils contain intact dna that can be sequenced.
Answer:
Yes,all fossils contain intact DNA that can be sequenced
Explanation:
What are the 4 major groups of birds?
Answer:
Strisores — nightjars, frogmouths, and other nocturnal birds, along with diurnal swifts and hummingbirds.
Columbaves — turacos, bustards, cuckoos, pigeons, sandgrouse, and mesites.
Gruiformes — cranes, rails, crakes, Sungrebe, flufftails, and others.
Aequorlitornithes — shorebirds, flamingos, grebes, gulls, tropicbirds, penguins, and other waterbirds.
Explanation:
Answer: The four important group of birds are 1. Game Birds 2. Preying Birds, 3. Perching Birds and 4. Flightless Birds.
Game birds are good runners but they cannot fly long distances. Their wings are short and round, but legs are massive. The beaks are also strongly built. Males are aggressive. One male maintains a group of 3-4 females. Game birds include partridges, pheasants, quail, grouse and pea fowls.
Preying birds are predators. They kill mice and other smaller animals and eat them. They have very strong, hook-like beak. There feet have curved and pointed claw. Their vision is very sharp. Preying birds include vultures, kites eagles and falcons.
Perching birds constitute the largest group of birds. When they sit on a tree, their digit grasp the branch of the tree in such a way that they cannot fall off the branch. Baya, larks, swallow, bulbul, finches, house sparrow, weaver-bird, crow and magpie are some common perching birds.
Flightless birds can run but they cannot fly. Flightless birds are large-sized. They generally lack tail feathers. The keel of sternum is absent. Flightless birds include ostriches, rhea, emu, kiwi, and penguin. Ostrich is the largest living bird. It weighs about 157 kg. Ostriches are very good runners. They are found in Africa and Arabia. Rhea is found in South America. It is smaller than ostrich. Emu is found in Australia. It is smaller than rhea. Kiwi is found in New Zealand. It is Southern hemisphere (Antarctica). Their body is suited for diving and swimming.
--Cited From Preserve Articles
Please Answer Correctly As This Is For My Project.
1. What are the unique characteristics of the macromolecule subunit and macromolecule you explored?
2. Describe how the subunit you modelled chemically combines with other subunits to form a macromolecule.
3. What are the functions of the macromolecule you explored?
4. Summarize the relationship between the structure of your subunit and the function of the macromolecule it forms.
Answer:
1. Macromolecules are typically BIG molecules, and they truly are the building blocks of cells. Macromolecules are generally built by combining many single units, or monomers, into larger units, called polymers.
2.polymers which are long chains of subunits called monomers.
3.Gigantic molecules, called macromolecules, populate a cell and provide it with important functions for life. For example, macromolecules provide structural support, a source of stored fuel, the ability to store and retrieve genetic information, and the ability to speed biochemical reactions.
4.Polymers are macromolecules, but not all macromolecules are polymers. The main difference between a polymer and a macromolecule is that polymers contain repeating units that represent monomers whereas not all macromolecules have a monomer in their structure
Explanation:
Why do plants contain the
greatest amount of energy in the
food pyramid?
Answer:
Autotrophs are the plants which prepare their food by photosynthesis.
Explanation:
Explain how isolation causes the making of new species?
Answer:
Explanation:
When organisms become isolated the two groups are also not able to reproduce together, so in one group are not necessarily found in the other group. The longer the groups are isolated, the more different they are. They eventually become different species.
Can someone please help me with these questions
Answer:
1) C
2) C
3) A
Explanation:
Hope this helps! Have a great day!!
whst is the biological importance of cellular respiration
Explain five ways HIV can change your life
Answer:
It can change the way your peers and people view you as an individual
Effect the way you view yourself
Can cause a broken relationship
thats it
Explanation:
Is this right if not please tell me the right answer!