Length of leaf = 0.04
After 500 times magnitude
Length of image = 0.05*500
= 20.00
= 20mm
What are leaves?Leaf is any usually flattened green outgrowth from the stem of a vascular plant. As the primary sites of photosynthesis, leaves produce food for plants, which in turn ultimately nourish and sustain all land animals.To know more about leaves here
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Photosynthesis
Leaves helps to make
for a plant. They contain a
green substance called chlorophyll The leaves take in a gas called
The roots take in
and other substances from the
ground
The
changes the water and carbon dioxide into the
food that the plant needs. This food is a kind of sugar called
This whole process of making food is called
While this is happening the leaves give off a gas called
Word's to choose from: oxygen, carbon dioxide, photosynthesis,
water, food, chlorophyll, glucose
Complete the word equation for photosynthesis
sunlight
Answer:
1. Food
2. Carbon Dioxide
3. Water
4. Chlorophyll
5. Glucose
6. Photosynthesis
7. Oxygen
Can you please help me
It is for my biology class
Thanks
Name and describe how at least 1 biotic factor can contribute to changes in gene frequency over
time through natural selection.
Answer:
Change in food source.
Explanation:
If there is a change in food source, then the organism will have to adapt to that change. For example, with Darwin's Theory on the finches on the Galapagos Islands. There were many different varieties from different size to different beaks. This was because of changes on food sources and they adapted to obtain them more.
Natural selection can contribute to variations in gene frequency throughout time as a result of changes in food supply.
Changes in gene frequency:If the organism's food supply changes, it will have to adjust to the new situation.
For example, Darwin's Theory on the Galapagos Islands' finches. There were several distinct types, ranging in size and beak shape. This happened due to changes in food supplies, and they evolved in order to access more of them.
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Two equal strips A and B were from a potato whose cell was 30% of sugar. The strip
A was placed in a solution of 10% sugar concentration while B was placed in 50%
sugar concentration
a) What change was expected in strip A and B
b) Account for the change in strip A
Answer:
Movement occurs from higher concentration to lower concentration.
Explanation:
Strip A cell has 30% of sugar which is placed in a solution of 10% sugar so the sugar that is present in the potato strip A moves from inside to the outside due to the process of osmosis while on the other hand, if strip B was placed in 50% of sugar solution so the sugar moves inside from outside environment through semi-permeable membrane. This movement occurs due to difference in concentration of both environments i.e. cell and solution.
Two equal strips A and B were from a potato whose cell was 30% of sugar. strip A was placed in a solution of 10% sugar concentration while B was placed in 50% sugar concentration
a) strip become flaccid and strip B will swell
b) hypotonic solution causes movement of water to diffuse out of cell
Simple diffusionSalts and sugars in solution will diffuse away from areas of high concentration into the surrounding solution
Water also diffuses away from areas of high free water concentration into areas of more solute concentration.here in strip A is placed in low sugar solution that causes movement or diffusion of water from the cell to the solution as it is only 10% sugar concentrationin strip B which is placed in low sugar solution that is placed in high sugar concentration solution that is 50% which means there will be movement of water from solution into the cells of the strip which cause them to swellThus, Two equal strips A and B were from a potato whose cell was 30% of sugar. strip A was placed in a solution of 10% sugar concentration while B was placed in 50% sugar concentration
a) strip become flaccid and strip B will swell
b) hypotonic solution causes movement of water to diffuse out of cell
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Pesticides sprayed on the plants in fields become
drip onto the soil.
when they settle and
O A. ammonia
O B. pollutants
C. nutrients
D. acid rain
Answer:
pollutants
Explanation:
have a nice day :)
Answer:
pollutants
Explanation:
All of Earth's systems are
A. independent
B. interconnected
C. separated
D. unrelated
the united states , canada , japan , and england are all examples of ?
1. developed nations
2. developing nations
3. low-income nations
4. middle-income nations
5. transitional nations
what’s the code for UCU AAA CCU GGG UAA
Please help! ASAP this is due today and I really need help.
Which of the following shows the evolutionary relationships between organisms? (5 points)
a
Branching tree diagram
b
Binomial nomenclature
c
Three-domain classification
d
Taxonomic key
Answer:
it's A)Branching tree diagram
Explanation:
i did the 05.06 Module 05 Exam and got it correct, i hope i was able to help :)
What device is used to measure water forming on the glacial ice sheet?
The device that is used to measure water forming on the glacial ice sheet is known as the Airborne Topographic Mapper (ATM).
What do you mean by Glacial Ice sheets?Glacial ice sheets may be defined as a mass or accumulation of glacial ice of more than 50,000 square kilometers. This sheet significantly contains about 99% of the freshwater on Earth and is sometimes called continental glaciers.
According to the context of this question, an instrument known as the Airborne Topographic Mapper (ATM) considerably collects the elevation of the ice surface along with its thickness. Apart from this, it also measures the formation of ice from water on the glacial ice sheet.
Therefore, the Airborne Topographic Mapper (ATM) is a device that is used to measure water forming on the glacial ice sheet.
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ASAP Becky made the diagram below to represent ultraviolet rays, radio waves, gamma rays, and infrared rays based on their properties.
Four waves labeled A, B, C, and D are shown. Wave A has the greatest gap between its consecutive peaks and Wave B has the least gap between its consecutive peaks. Wave C has the second greatest gap between consecutive peaks, followed by Wave D.
Which wave best represents ultraviolet rays?
Wave A
Wave B
Wave C
Wave D
The best wave represents ultraviolet rays is Wave B.
Ultraviolet (UV) radiation is a type of non-ionizing radiation that is emitted by the sun and unnatural sources, such as tanning .
How harmful are UV rays?Exposure to UV rays can cause early ageing of the skin and signs of sun harm such as creases , leathery skin, liver bumps, actinic keratosis, and solar elastosis.
UV beams can also generate eye pains. They can force the cornea to become inflamed or ignited.\
Thus, the option "B" is correct, Ultraviolet (UV) radiation is a type of non-ionizing radiation that is emitted by the sun and unnatural sources, such as tanning .
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Answer:
b
Explanation:
I WILL GIVE YOU BRAINLYEST!! ANSWER THESE TWO QUESTIONS PLSS!!
Using your own words, can you describe
the meaning of a watershed?
How are groundwater and surface water different?
PLS HELP ME!! And have a great day!
Watershed is like where rainwater gathers to then be drained off into like a pond or river.
Surface Water is just water in like lakes and ponds while ground water is underneath the surface of the Earth.
Best of luck!
Which type of birds do you think survive the drought finches big breaks or finches with small beaks?
Answer:
Since large and hard seeds survived the drought, that means that finches with large beaks survived the drought. Finches with small beaks would not be able to eat the large seeds and would not survive.
Which of the following can
conserve energy?
A. crop rotation
B. intercropping
C. drip irrigation
D. recycling newspaper
Answer:
jbbbbbbbbbbb
Explanation:
jjjjjjjjjjjjj
Answer:
B i think
Explanation:
What type of scientists uses a dichotomous key?
Answer: biologists are a type of scientist that use dichotomous.
The Type of scientists that uses dichotomous key is : Biologist
A lot of scientists make use of the Dichotomous key for identifying unknown biological organisms like Biologists. A dichotomous key consists of a set of choices, with each choice consisting of two statements, these statements makes it possible to name an unknown biological organism.
A dichotomous key is a simply method used for the identification of organisms ( groups of unknown organisms are repeatedly divided into two groups to get more information about the organism )
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When a substances like sugar, salt or lemon juice dissolve into a liquid and appears to "disappear", it is no longer present in the solution.
True
False
Answer:
False.
Explanation:
A solvent is the substance that does the dissolving – it dissolves the solute. In salt solution, water is the solvent. During dissolving, particles of solvent collide with particles of solute. They surround the particles of solute, gradually moving them away until the particles are evenly spread through the solvent.
The molecules are still there.
What type of wave is light? And does it need a medium to travel through?
Answer: light is a eletromagnetic wave, no it does not need a medium
Explanation:
have a good day lad :)
Answer:
light arent a specific "type" of wave, but it refers to any wave/wavelength in the electromagnetic spectrum
and yes, it needs a medium, just like sound waves
Part D The result of the following cross indicates that the genotype of the female parent is _____. A cross of a female parent with a wild type head top and a male parent with a flat head top (P generation). The F1 generation all have a wild type of the head top. The result of the following cross indicates that the genotype of the female parent is _____. A cross of a female parent with a wild type head top and a male parent with a flat head top (P generation). The F1 generation all have a wild type of the head top. R rr Rr r RR
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
Meiosis produces four nuclei that have different chromosome numbers
from the parent cell.
True or False
Help please
Answer:
I would say true
Explanation:
they do produce 4 different chromosomes
Answer:
true
Explanation:
the are 23 chromosomes in the daughter cell and 46 in the parent cell
which of the following is a potential consequence of soil compaction and loss of soil structure
Answer:
The compaction force may cause the crushing of soil aggregates, which has a negative affect on soil aggregate structure. ... Reduced soil aeration can affect root growth and function, and lead to increased risk of crop disease. All these factors result in increased crop stress and yield loss.
Which of the following is an example of parasitism.
Answer:
I think it is A
Explanation:
A would be my andwer
In the 1950s, Stanley Miller and Harold Urey conducted experiments in which they fired electrical sparks in the presence of a mixture of different gases. How d these experiments contribute to the theory of the origins of life on earth?
A They determined that the age of organic molecules can be measured by the half-life of isotopes
B They showed that organic molecules could be formed from materials nypothesized to be available in the Earth's early atmosphere
C They proved that organic molecules formed from the accumulation of debris from space
D They discovered that organic molecules would not have formed without the presence of oxygen in the atmosphere
biology spring assessment 2020-2021
Answer:
b.
Explanation:
They showed that organic molecules could be formed from materials nypothesized to be available in the Earth's early atmosphere.
What is Stanley miller and Harold Urey?The Miller-Urey experiment tested the hypothesis that life, or more precisely organic molecules, might have arisen by nothing more than straightforward chemical processes by simulating the conditions on the early Earth.
Miller's result confirmed A.I. Oparin's theoretical hypotheses, and it is regarded as the standard experiment looking into the hypothesis of abiogenesis.
The Miller-Urey experiment was the first attempt to investigate theories regarding the beginning of life experimentally. Stanley Miller recreated circumstances that were supposedly typical on the early Earth.
Therefore, They showed that organic molecules could be formed from materials nypothesized to be available in the Earth's early atmosphere.
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39
What did Darwin's analogy of the tree of life suggest? *
(2 Points)
Answer:
all species were derived from ancestral group
what is the function of the cristae that is found inside the mitochondria
Answer: cristae greatly increase the surface area of the inner membrane on which the above-mentioned reactions may take place. A widely accepted hypothesis for the function of the cristae is that the high surface area allows an increased capacity for ATP
Explanation:
Answer please I will give points
Answer:
A
//this msg was written as I needed more words//
Answer:
The answer is a
Explanation:
The answer is a because it ball a can't rollout a flat surface unless gravity pulls on ball A
Over 1 million species of animals have been named and described by biologists. These species arose __________. View Available Hint(s) Over 1 million species of animals have been named and described by biologists. These species arose __________. before the Cambrian explosion through years of evolution as natural selection shaped animal adaptations to Earth's environments from island-bound populations of individuals as a result of evolution from a common fungal ancestor
Answer:
through years of evolution as natural selection shaped animal adaptations to Earth's environments.
Explanation:
Over the years, biologists have been able to successfully name more than one (1) million animal species across the world. These species arose through years of evolution as natural selection shaped animal adaptations to Earth's environments.
Natural selection can be defined as a biological process in which species of living organisms having certain traits that enable them to adapt to environmental factors such as predators, competition for food, climate change, sex mates, etc., tend to survive and reproduce, as well as passing on their genes to subsequent generations.
Simply stated, natural selection entails the survival of the fittest. Therefore, the species that are able to adapt to the environment will increase in number while the ones who can't adapt will die and go into extinction.
1) If you cross a mussel with dark, zebra-striped shells with a mussel with
solid light-colored shells, how many offspring would you expect to
have the daik, zepra-striped shells?
A) 0%
B) 50%
C) 75%
D) 100%
What might happen to an enzymes activity if the gene encoding its production was altered by a mutation?
Answer:
The enzyme's activity will be altered
Explanation:
Genes are unit of hereditary that carries genetic information needed for the survival of the cell and organism at large. Genes are expressed via transcription and translation processes to produce a protein, which is responsible for the physical traits we can see (phenotype).
Since ENZYMES that catalyze biochemical reactions in living cells are proteinous in nature i.e. are made up of proteins, this means that they are formed from the expression of genes. Hence, if the gene encoding the production of an enzyme is altered or changed due to mutation, then the activity of the resulting enzyme will also be altered (most times non-functional).
Suggest two reasons why a person aged 16–49 years might not be using contraception.
Answer and Explanation:
The people within this age range most likely want a baby for themselves/want more babies, or they don't feel like they should have to be limited to the amount of babies they want. Since it is their life and their bodies, they think it is up to them to decide how many to have and whether to have one or not.
#teamtrees #PAW (Plant And Water)
How would this food web be affected by the extinction of the Osprey?
Answer:
The fish would grow in the population, because osprey mainly eat fish.
Because of the fish growth, the ocean, pond, or whatever, makes the water have less oxygen. The fish eat small fish, crustaceans, worms and almost anything that is not poisonous to them. These populations will decrease.
Because there are no Ospreys, the raccoons will get hungry too, as they sometimes eat Osprey eggs.