Answers
Diffusion is important as it allows substances to go into the cell to use for energy, growth and many other important processes that occur to support the cell. It also allows substances to leave the cell to get rid of waste products which is no longer required in the cells.
Take for instance, animals, a category that includes humans. We need diffusion in order to allow gas exchange to occur which aids us to respire. In the process of respiration, oxygen (O2) is taken in (breathed in) and carbon dioxide (CO2) is released. In our digestive system, we also need diffusion to absorb water in the large intestine.
And in plants, diffusion is also required for photosynthesis (a type of gas exchange in plants). Throughout the process of photosynthesis, carbon dioxide is taken in, and oxygen is released. Another example where plants use diffusion is in transpiration, which is the diffusion of water from a plant’s surface.
Related Questions
if an earthworm is 18mm long and is photographed and the picture is magnified 2.5x how long will it be in the picture?
Answers
Answer:
The earthworm will be 45 mm long in the picture
Explanation:
From the problem, we can take the original size of the earthworm to be 18mm.
Magnification can be obtained using the formula:
magnification = observed size/ original size.
Recall, we are given that the magnification is 2.5.
Hence, can evaluate the size in the picture to be
2.5 X 18mm = 45mm
How is the organism that receives the DNA with the code for the desired trait
described?
1.genetically modified
2.the receiver organism
3.the strongest organism
Answers
27. What substance is a liquid at -200 °C?
carbon
phosphorus
xenon
arsenic
nitrogen
Answers
Answer:
its nitrogen..........
Which of the following is an unintended consequence of cutting down trees?
A. Cleared land can be used for agriculture.
B. Depleting wooded areas means fewer habitats for forest
organisms.
C. People burn wood for fuel.
O. D. People use wood to build houses
Answers
Answer:
B. Depleting wooded areas means fewer habitats for forest organisms
1 pts
What is the function/job of the nucleus?
Tir
Att
58
o Contain the green chlorophyll and make food for the cells by photosynthesis.
o Outside layer of the cell-responsible for determining what enters and exits the cell.
Thin, tube-like structures that provide support and shape for the cell.
The control center for the cell which contains the DNA of eukaryotic cells.
Next
DLL
Answers
Function/Job of nucleus:
Controls and regulates the activities of the cell and carries the genes, structures that contain the hereditary information.
Contains the green chlorophyll and make food for the cells by photosynthesis:
Plants
Outside layer of the cell-responsible for determining what enters and exits the cell:
Cell or Plasma Membrane
Thin, tube-like structures that provide support and shape for the cell:
Microtubules
The control center for the cell which contains the DNA of eukaryotic cells:
Nucleus
Soils in different regions differ based on the _______.
a.
local climate
b.
topography of the land
c.
native organisms
d.
all of the above
Answers
Answer:
I think the answer should be local climate
Answer:
i think it's D.
Explanation:
because i just want to do an anser on this thing
Match each stem or root to its description.
Fibrous
Herbaceous
Taproot
Woody
Answers
With the help of circulatory it produce blood cells.
A. Excretory
B. Muscular
C. Endocrine
D. Skeletal
Answers
Answer:
Skeletal
Explanation:
Think about the bone marrow.
Answer:
D. Skeletal
Explanation:
blood cells are formed in the red bone marrow of bones. Stem cells in the red bone marrow are called hemocytoblasts. They give rise to all of the formed elements in blood. If a stem cell commits to becoming a cell called a proerythroblast, it will develop into a new red blood cell.
Need help fast pls will give brainliest
Answers
Answer: increase,high,producers...
Explanation:
I NEED HELP PLZ ITS DUE TODAY. The sun produces a great amount of energy with sound and lights. We enjoy the sun's light and heat waves on Earth, but cannot hear any sound of the sun. Explain this phenomenon in terms of mechanical waves and electromagnetic waves. (10 Points)
Answers
Answer:
See explanation
Explanation:
First of all, we have to know the difference between a mechanical wave and an electromagnetic wave.
A mechanical wave requires a material medium for propagation. It does not travel through space. An electromagnetic wave does not require a material medium for propagation and it can travel through space.
Light and heat are electromagnetic waves. They both belong to the electromagnetic spectrum. On the other hand, sound is a mechanical wave.
While heat and light can travel through space, sound can not because it is a mechanical wave. Sound has to pass through gas molecules and there is no gas in outer space.
Hence, we enjoy the sun's light and heat waves on Earth, but cannot hear any sound of the sun.
which product is made from a renewable resource?
A. a penny made with copper?
B. computer chips made from silicon?
C. a pie made with blueberries?
D. earrings made from silver?
Answers
Answer:
C. A pie made with blueberries
Explanation:
Blueberries can be grown naturally, so they are a renewable resource.
Blueberries are renewable resources. Hence, option C is correct.
What are renewable resources?Renewable resources are those natural resources that continue to exist even after their consumption. They are also known as flow resources.
Renewable resources include plants, biomass, ocean currents, energy, wind, solar energy, tides, waves, etc. All these things will continue to exist even after their consumption. They can be used repeatedly and do not run out.
Advantages of renewable resources:
They are cheap.They are easily available.They are eco-friendly.They are clean and efficient.Copper, silicon, and silvers are minerals and non-renewable resources, and blueberries are plant products and hence, they are renewable resources. Therefore, option C is correct.
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FACERII (Why the bulb of a dynamo glow brightly when
speed of bicycle is increased and become dim when the
speed is decreased? Give reasons.)
Am
ma
Answers
Answer:
As the bicycle moves, the wheel turns a magnet inside a coil. This induces enough electricity to run the bicycle's lights. The faster the bicycle moves, the greater the induced voltage - and the brighter the lights.
Explanation:
hope you understand :)
This list of terms BEST describes ?
A) hypothesis
B) law
C) Theory
D) variable
Answers
Answer:
the answer is
Explanation:
hypothesis
lest 5 Adaptation to oxygen up take for mounting climbers
Answers
how do the rates of photosynthesis change with the physical environment?
Answers
Answer:
Without enough light, a plant cannot photosynthesis very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply.
Explanation:
Many of the DD-amino acids found in nature have been discovered in bacterially produced peptides that have antibiotic properties.
a. True
b. False
Answers
Answer:
True
Explanation:
Most the amino acid are of L configuration. Antimicrobial peptides consists of D amino acids (D amino acid occur naturally). D amino acids are also found in walls of microorganism. Antimicrobial peptides is released by species including bacteria, fungi etc.
For example - Bacteriocin, peptaibols, plectasin etc.
Hence the given statement is true
PLSSS IM BEGGING
Where do producers get energy to make sugars?
The air
The sun
Their food
The soil
Answers
using what have you learnt about the effect of concentration gradient and surface area to volume ratio, explain the adaptations of a leaf for photosynthesis
Answers
Answer:
thanks
Explanation:
Leaves are adapted for photosynthesis and gaseous exchange.
They are adapted for photosynthesis by having a large surface area, and contain openings, called stomata to allow carbon dioxide into the leaf and oxygen out. Although these design features are good for photosynthesis, they can result in the leaf losing a lot of water. The cells inside the leaf have water on their surface. Some of this water evaporates, and the water vapour can then escape from inside the leaf.
When water evaporates from the leaves, resulting in more water being drawn up from the roots, it is called transpiration.
To reduce water loss the leaf is coated in a waxy cuticle to stop the water vapour escaping through the epidermis. Leaves usually have fewer stomata on their top surface to reduce this water loss.
Leaves enable photosynthesis to occur. Photosynthesis is the process by which leaves absorb light and carbon dioxide to produce glucose (food) for plants to grow. Leaves are adapted to perform their function, eg they have a large surface area to absorb sunlight.
Plants have two different types of 'transport' tissue, xylem and phloem. These specialised tissues move substances in and around the plant.
Identical twins have ____________ but ______________.
A. Different DNA, come from the same sperm and egg
B. Identical environmental variation, different DNA
C. Identical DNA, come from different sperm and eggs
D. Identical DNA, different environmental variation
Answers
Answer:
D
Explanation:
Identical twins have identical DNA, but different environmental variations.
What are identical twins?
Identical twins are twins that are born from a single sperm and egg. They contain identical DNA codes. They are monozygotic twins, and they are 100% identical to each other.
Thus, the correct option is D. Identical DNA, different environmental variation.
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when the people swalo the gum what will happen in digestion?
Answers
Answer:
If you swallow gum, it's true that your body can't digest it. But the gum doesn't stay in your stomach. It moves relatively intact through your digestive system and is excreted in your stool.
- Which occurrence is the result of the cell cycle in unicellular organisms?
A. cell repair
B. cell growth
C. cell replacement
D. cell reproduction
Answers
Answer:
D
Explanation:
Cell reproduction is the result of the cell cycle in unicellular organisms. The correct option is D.
What is cell reproduction?Cells split to produce multiple cells with similar, if not identical, contents. This process is known as cellular reproduction.
Nuclear division during mitosis produces two somatic cells that are genetically identical to the parent cell and have the same genetic complement.
Asexual reproduction in prokaryotes takes the form of cell division in unicellular organisms.
When an organism splits in half, it creates two totally distinct daughter cells, a process known as binary fission. The daughter cells are identical to the parent cells genetically.
Most of the time, Paramecium reproduces asexually via budding, however in poor circumstances, they produce sexually.
Unicellular organisms have a variety of asexual reproduction strategies, including multiple fission, fragmentation, and budding.
Thus, the correct option is D.
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List all six stages of the sensory pathway when an animal responds to information about its environment.
Answers
Explanation:
There basically four stages of sensory pathway when an animal responds to information about its environment.
and these stages of pathway are Reception, transduction, transmission, and perception.
The sensory receptors are commonly described as specialised neurons found in sense organs that helps detect and respond to stimuli. The six stages of the sensory pathway which an animal responds to information about its environment are:
Reception: This falla under sensation. It is simply a type of sensory receptors detect that stimulus is present.Transduction: This also falls under sensation. It is a type of sensory receptors whose work is mainly to convert stimulus energy into electrochemical energy.Transmission: This falls under sensation. It is when neural impulses leave sensory organs and moves to the brain.selection: This falls under perception. It acts as detectors that filter the stimuli by responding to particular features of a stimulus while also ignoring the rest.Organisation: This falls under perception: It is known to organise the characteristics of sensory stimuli in a meaningful manner. Interpretation: This Fall also under perception. It is known to give meaning to sensory stimuli.Sensation is simply regarded as a physiological process that uses sensory receptors in detecting and responding to stimuli.
Perception is referred to as the mental work of organising and interpreting sensory stimuli, making it meaningful.
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is the above cell a plant cell or animal cell? provide two observable
Answers
Explanation:
you have not showed the cell..please
12. Removing an organism from an ecosystem will have which of the following affects? Select all that apply.
A. Increase in biodiversity
B. Decrease in biodiversity
C. Increase in the overall health of the ecosystem
D. Decrease in the overall health of the ecosystem
Answers
Answer:
B and D
Explanation:
Biodiversity comes from having multiple types of organisms. This also allows different organisms to eat and create nutrients that is needed by all other organisms in the ecosystem.
According to cell theory, all new
cells...
A. must share DNA with existing cells.
B. must eat.
C. come from other cells.
Answers
Answer:
C. come from other cells.
Explanation:
Which characteristic helps grasses survive dry conditions?
long, flexible stems
long, skinny leaves
small, soft flowers
deep roots
Answers
answer: deep roots. hop u do good on ur test guys
In the image is the blood hypertonic, isotonic, or hypotonic compared
to the matrix of the brain?
Answers
Answer:
Hypotonic
Explanation:
there is less concentration in the blood compared to the brain
Answer:
Hypotonic
Explanation:
the blood is hypotonic compared to the matrix of the brain because it has less solutes than the matrix
Fruit color in a particular plant is controlled by a set of three quantitative traits that work in an equal and additive manner. Each trait has two alleles (i.e., A and a); each allele represented by a capital letter produces one dose of yellow pigment, while alleles represented with lower case letters do not produce any pigment at all. How many different shades of yellow fruit color are there
Answers
Answer:
7
Explanation:
The number of distinct shades of fruit color would be 7. It is given that the color is dominated by a group of three QTL(quantitative traits) with each trait having two alleles(A,a). Out of these two alleles, one represented by a capital letter(A) generates a single dose of yellow pigment while the latter represented by a smaller case letter(a) does not generate any pigment. Since there is no environmental effect, the number of various yellow shades would be 7 through the combinations of yellow and colorless pigments(A/a, A/a, A/a, A).
Allergies, asthma, high blood pressure, and heart
disease are examples of conditions caused by
Answers
Answer:
pollen sorry
Explanation:
i only did this for the points but the real answer is:
Children with allergies, asthma may be at risk of heart problems, with an increased risk of developing high blood pressure, high cholesterol, and obesity. In addition, eczema, a condition that causes itchy, inflamed skin, was common to asthma. here you go! Have a great day!
the average weather pattern taken over a long period of time is called ............. of that place.
Answers
Answer:
Climate
Explanation: