Answer: B :)
Explanation:
explain how fossils could be used as evidence of evolution
Answer: Fossils are like biological documents. They prove the existence of species that are now extinct (like dinosaurs). They also show how different organisms that once lived on Earth lived, survived, and acted during different periods of the Earth's ancient, and even more recent history. Fossils can also help scientists and biologists reconstruct the evolutionary histories of present-day species.
Explanation: I hope this helps! Here's a picture of a species' fossils showing the species evolving over millions of years. ( I think it's a horse)
A red blood cell has a salt concentration of 0.9%. What will happen if it is placed into
a 0.8% salt solution? The red blood cell will
burst
remain the same
shrink then grow
shrink
Answer:
Shrink
Explanation:
The blood cell would shrink because of osmosis. The molecules move with the concentration gradient so water molecules will move outside of the cell where there is less water than inside of the cell.
Blood cells are the main constituents of the circulatory system and carry the most vital function of oxygen transportation. Blood cells have a specific concentration and osmotic pressure to remain vital.
The correct answer is:
Option D. Shrink.
This can be explained as:
Cells have a tendency to shrink in hypertonic solutions while swells in hypotonic solutions.0.8% of the salt solution will act as a hypertonic solution and the RBC placed in it will shrink.When cells are placed in hypertonic solution it loses their water content to the outside surface and hence shrink.Therefore when the red blood cells are placed in 0.8% salt solution they will shrink.
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why do we commonly see isotherms on local weather broadcasts?
Explanation:
Isotherms are lines of constant or equal temperature. They are often used on weather maps by meteorologists to give a large scale view of temperatures across the U.S. If you have ever looked at a weather map in a newspaper, the isotherms are used to divide the color-filled temperatures.
Molecule X is most likely what kind of compound/molecule? *
Molecule X is an enzyme to which the starch is bonded and starch- enzyme complex is formed.
What is an enzyme?An enzyme is a type of protein that acts as a catalytic agent in chemical reactions. Enzymes play a crucial role in metabolism and other biological processes by increasing the rate at which chemical reactions occur.
Enzymes work by lowering the activation energy needed for a reaction to take place. In other words, enzymes make it easier for the reactants in a chemical reaction to come together and form products. This is accomplished by the enzyme binding to one or more of the reactants, known as substrates, and bringing them into a specific orientation that promotes the reaction. Once the reaction has taken place, the enzyme is free to bind to another set of substrates and catalyze the reaction again.
Enzymes are highly specific, meaning that each enzyme typically catalyzes only one particular reaction or a small group of closely related reactions. They are also highly efficient, able to catalyze millions of reactions per second.
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Which is a property of a ceramic?
Can some1 help me out please will give BRAINLY
Answer:
Answer is D) Insulating
Which statement explains blood pressure?
Answer:
Blood pressure is highest in the arteries farthest away from the heart.
Explanation:
Due to the fact there is no options I'm guessing this is the answer.
Thanks to the field of linguistics we know much about the development of the 5,000 plus languages in existence today. We can describe their grammar and pronunciation and see how their spoken and written forms have changed over time. For example, we understand the origins of the Indo-European group of languages, which includes Norwegian, Hindi and English, and can trace them back to tribes in eastern Europe in about 3000 BC.
So, we have mapped out a great deal of the history of language, but there are still areas we know little about. Experts are beginning to look to the field of evolutionary biology to find out how the human species developed to be able to use language. So far, there are far more questions and half-theories than answers.
Find in this text 6 noun and 6 adverd and 6 adjectives and 6 noun phrase and 6 Adverbial clause
We know that human language is far more complex than that of even our nearest and most intelligent relatives like chimpanzees. We can express complex thoughts, convey subtle emotions and communicate about abstract concepts such as past and future. And we do this following a set of structural rules, known as grammar. Do only humans use an innate system of rules to govern the order of words? Perhaps not, as some research may suggest dolphins share this capability because they are able to recognise when these rules are broken.
my nanme is waleed khan
Name at least 2 organelles depend on the ER & describe how they rely on each other
Answer:The ER also contains domains that contact the plasma membrane (PM) and other organelles including the Golgi, endosomes, mitochondria, lipid droplets, and peroxisomes.
what might happen to cause biologists to modify the cell theory?
Answer:
Rudolf Virchow modified the cell theory and gave the concept of 'Omnis cellule e cellulae'- which means new cells develop by the division of the pre-existing cells. This is called the theory of cell lineage or common ancestry.
Explanation:
Based on their studies on cells, Schleiden and Schwann together formulated the cell theory. This theory however, did not explain as to how new cells were formed. Rudolf Virchow (1855) first explained that cells divide and new cells are formed from pre-existing cells (Omnis cellula-e-cellula). He modified the hypothesis of Schleiden and Schwann to give the cell theory a final shape. Cell theory as understood today is: (i) all living organisms are composed of cells and products of cells. (ii) all cells arise from pre-existing cells.
So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'
Plants are known as producers because they can make their own food. Which of the following provides a list of basic needs a plant must have for photosynthesis to happen?
A.
water and oxygen in the air
B.
soil, energy from the sun, and oxygen in the air
C.
energy from the sun, carbon dioxide in the air, water
D.
soil, carbon dioxide in the air, energy from the sun
the main sugar that is used as a reactant in cellular respiration is called ____?
Answer:
glucose
Explanation:
What is the purpose of the part of the female reproductive system highlighted
below?
A. Transporting eggs
B. Developing a fetus
C. Storing eggs
D. Collecting sperm
Answer:Your answer for this question is D.
Explanation:
The purpose of the part of the female reproductive system highlighted is to collect sperm; that is the last option (D), and after that, the sperm go to the female fallopian tube.
What is the female reproductive system?The female reproductive system is a complex network of organs and structures that work together to produce, transport, and fertilize an egg, as well as support the growth and development of a fetus during pregnancy. The primary organs of the female reproductive system are the ovaries, which produce and release eggs, and the uterus, which is the muscular organ where a fertilized egg implants and develops into a fetus.
Hence, the purpose of the part of the female reproductive system highlighted is to collect sperm; that is the last option (D), and after that, the sperm go to the female fallopian tube.
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Use the figure below to complete number 33 and 34.
33.
Identify the type of cell in the picture.
D
E
34.
Identify the cell parts labeled A-E.
Flagella
WILL GIVE BRAINLIEST
mutualism relates to which of the following relationships?
A. Both organisms benefit
B. One organism benefits; the other is harmed
C. Both organisms are harmed
D. Neither organisms benefit or is harmed
Answer:
A. Both organisms benefit
Explanation:
In the laboratory, a genetics student crossed flies with normal, long wings to flies with mutant, dumpy wings, which she believed was a recessive trait. In the F1, all flies had long wings. In the F2, the following results were obtained: 672 long-winged flies 218 dumpy-winged flies The student tested the hypothesis that the dumpy wing is inherited as a recessive trait by performing chi-square analysis of the F2 data.
Determine:
a. Chi-Square Value.
b. Degrees of freedom.
c. Reject or fail to reject the hypothesis.
Answer:
a. Chi-Square Value = 0.12
b. Degrees of freedom = 1
c. Reject or fail to reject the hypothesis = fail to reject the hypothesis
Explanation:
Available data:
Cross: long wings to flies with mutant, dumpy wingsF1) 100% long-winged fliesF2) 672 long-winged flies 218 dumpy-winged flies Hypothesis: the dumpy wing is inherited as a recessive traitLet us name the allele for Long L and the allele for dumpy l
The number of observed individuals:
Total number: 890 flies (672 + 218) Long-winged = 672 Dump-winged = 218In the F2 generation, if l was a recessive allele and L a dominant allele, exhibiting complete dominance, we would expect a 3:1 phenotypic ratio.
Cross: Ll x Ll
Gametes) L l L l
Punnett square) L l
L LL Ll
l lL ll
F2) 3/4 LL + Ll long-winged individuals
1/4 ll dump-winged individuals
From this ratio and the total number of individuals in the F2 generation, we can get the expected number of individuals:
4 possible genotypes ------- 890 individuals
3 LL + Ll genotype ------------X = 667.5 long-winged individuals
1 ll genotype ---------------------X = 222.5 dump-winged individuals
Chi square = ∑ (O-E)²/E
LL + Ll = (O-E)² /E
LL+ Ll = (672 - 667.5) ² / 667.5
LL + Ll = 0.03
ll= (O-E)²/E
ll= (218 - 222.5)² / 222.5
ll= 0.09
Chi square= ∑ ((O-E)²/E) = 0.03 + 0.09 = 0.12 Freedom Degrees = genotypes - alleles = 3 - 2 = 1 Significance level = 0.05 Table value/Critical value = 3.84
0.12 < 3.84 meaning that there is enough evidence to reject the null hypothesis.
Fail to reject the hypothesis. The genotypes in the population might be in equilibrium H-W. L is the dominant allele, and l is the recessive allele. The dumpy wing is inherited as a recessive trait.
deforestation ____ forest ecosystems
helps or disrupts?
Answer:
Disrupts
Explanation:
Distinguish between herbaceous and woody stems
Answer: herbaceous plants are plants with very flexible stems. Their leaves and stems die down to soil level at the end of every growing season amd woody plants are plants with very strong and not easily bendable stems such as trees. Woody plants produce wood as a structural tissue
Write a scientific explanation to explain how natural selection and adaptation increase or decreases the chances of survival for the mice if they entered one another’s environment.
Answer:
Natural selection is a factor of biological evolution, by means of which individuals who possess a certain characteristic tend to prevail over those who lack such characteristic. Thus, by reproducing, individuals with favorable characteristics end up imposing their own set of characteristics, taking control of the environment in which they develop and relegating other individuals or condemning them to their extinction or displacement.
Thus, in the case, if some mice entered the environment of others, most likely they would not be able to adapt to the conditions to which the original group of that environment had previously adapted. In this way, natural selection itself would make the new mice end up disappearing from it, in favor of the mice that already lived there and that, therefore, had adapted their characteristics to those of the environment.
Yeast is a: rhizobium, legume, bacteria or fungi?
Answer:
legume mark me brainy plz!
Explanation:
Answer:
I think its a legume?
Explanation:
If you are studying how genes interact then you are involved in functional genomics.
True
False
Read the following passage and construct a flow chart:
Exercise begins with skeletal muscle contraction, an active process that requires adenosine triphosphate (ATP) for energy. A small amount of ATP is present in the muscle when contraction begins. This ATP can be used and replenished to fuel about 15 seconds of intense exercise, after which point the muscle must generate more ATP through the process of cellular respiration. During cellular respiration, oxygen is used up when it combines with hydrogen to form water (oxidative phosphorylation). Thus, as a muscle's metabolism increases during exercise, the concentration of oxygen in the tissue decreases, while temperature, acid, and CO2 increase. These factors and the homeostatic sensors that detect them send out signals that result in local vasodilation, which shunts bloodflow from inactive tissues to the exercising muscles, where it is needed.
Drag and drop each of the following terms to form a flow chart.
Person starts to exercise
Oxygen sensors cause local blood cell vessels to dilate
Skeletal muscle metabolism increase
Skeletal muscle oxygen demand increase
Blood delivery to the skeletal muscle increases is order to provide more oxygen
Solution :
A flowchart may be defined as the diagram which represents the process or the workflow of any process. It is the step by step approach to solve or to do the process.
In the context, the the sequence of each of the terms to form a flowchart is :
1. Person starts exercising.
2. The metabolism of the skeletal muscle increases.
3. The demand for oxygen for the skeletal muscle increases.
4. The oxygen sensors causes the local blood cell vessels to dilate.
5. For providing more of oxygen, the blood flow to the skeletal muscle increases.
Which of the following best explains the difference between autotrophs and
heterotrophs?
A Heterotrophs are organisms that can produce their own food and autotrophs are organisms that
must consume or break down other organisms for food.
B Autotrophs are consumers and heterotrophs are producers.
C Autotrophs are organisms that can produce their own food and heterotrophs are organisms that
must consume or break down other organisms for food.
D Heterotrophs live in terrestrial ecosystems only and autotrophs can live in terrestrial or aquatic
ecosystems.
Answer:
C. Autotrophs (plants) are organisms that can produce their own food and heterotrophs (animals) are organisms that must consume or break down other organisms for food.
Veronica has a Hitchhiker’s thumb, but neither of her parents do. She also has a different skin tone than her parents, she likes different foods than they do, and she will probably end up taller than both of them. Scientists think that differences between closely related people are
1. Entirely a result of genetic factors.
2. Entirely a result of environmental factors.
3. Due to both genetic and environmental factors.
Answer:
3. Due to both genetic and environmental factors.
Chromosomes pull apart and move toward opposite ends of the cell during which stage of meiosis II?
O prophase II
O metaphase II
O anaphase II
telophase II
what is a selectable marker?????
One of the following is not a function of proteins:
Select one:
a. Catalysis as Enzymes
b. Transport of proteins
c. Protection as antibodies
d. Regulation of hormones
The kingdom Eubacteria is so called as they have a "True" nucleus.
True
False
The greatest amount of diversity can be found among which type of organism?
Answer:
insects first then animals
Explanation:
ANIMALS
Who ever can do this for me will be marked that Brainly thing and thanked
Answer:
Explanation:
its my first day going through the first cycle as a drop of water and it starts off with me going through evaporation. it feels.. misty and cozy at the same time. as i rise from the ocean i say goodbye to my brothers and sister who are soon to come. i next go through transpiration in which i transition into the cycle of condensation in which i'm with other follicles of water. we get bundled together until we are to heavy to lay adrift in the clouds. while dropping i land in a puddle in which we land in a puddle. once the cycle has stopped a deer manages upon us and cleanses itself. a little after the matter the deer runs, in which a bear approaches us and replenishes itself. once it releases the water we go through the cycle all over again. Fin.
sorry if not good enough haven't done it in a little
Some children are playing a kickball game on a flat field. One child kicks the ball and it rolled across
the field. Which statement best explains the motion of the ball?
A. The ball will roll until a force acts on it.
B. The ball will speed up as it crosses the field.
C. The energy in the ball will increase as it rolls.
D. The ball will roll continuously unless it hits something.
Answer:
A because depends on how a force acts on it is what happens to the ball