Answer:
all arthropods have exoskeletons
Explanation:
exoskeletons
are good for smaller insects they provide a larger surface are and are easier to attach muscle
The correct answer is:
D.(All arthropods have exoskeletons)
I took the test, hope this helps!
What happens to the chromosomes during interphase?
Answer:
The cell develops during interphase, and the nuclear DNA is duplicated.
I hope this helps :)
Create an atom with mass number equal to
3 and neutral charge. Click the red button
when done.
In order to solve the question, one must understand that:
An atom is made up of neutrons which has no charge, negatively charged electrons, and positively charged protons. The mass number of an atom is the number of protons plus neutrons of the atom. It is also the atomic mass number of the atom.A neutral atom has an equal number of positive (proton) and negative (electron) charges.Hence, in order to create a neutral atom with a mass number of 3, the proton and neutron number must add up to 3 while the proton and electron number must be equal.
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How are eukaryotic and prokaryotic cells similar?
A.Both contain cell walls
B.Both contain ribosomes
C.Both contain membrane-bound organelles
D.Both contain a nucleus
sort the excerpted below into examples and counterexamples of the theme strangers can act heroically. i saw a great many kindly acts act of violence. mass panic. the poor helped the rich the rich helped the poor one man worked for nothing. crime
Answer:below
Explanation:
Examples: “the poor helped the rich” “I saw a great many kindly acts” “one(man) worked.. for nothing” “ the rich helped the poor”
Counterexamples: crime, “act of violence” “mass panic”
Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Part E How would you conduct your investigation? In your answer, explain your independent and dependent variables.
Answer
no . you should give one plant natural fertilizer and the other artificial fertilizer to decide which works the best
Explanation:
because it is made for tomatoes
Answer:
part E
The dependent variable is the growth rate of the plant. The independent variable is the type of fertilizer used over time. There will be three groups of tomato plants raised from seed: one group will be a control group without any fertilizer, the second group will be planted in soil with artificial fertilizer, and the third group will be planted in soil with compost. The height of the plants will be measured every five days, over a 30-day period.Explanation:
why is the tongue considered an organ?
Answer:
The tongue can be viewed as an organ. It’s comprised of various tissues that give it its own functions that no other organ can replace, it has its own innervation, irrigation, lymphatic and venous drainage. Those are the characteristics that define an organ.
Answer:
Hmm.
Explanation:
The tongue is considered an organ because it has a special job to do.
'Organ, in biology, a group of tissues in a living organism that have been adapted to perform a specific function.
'The tongue is a muscular organ in the mouth of most vertebrates that manipulates food for mastication and is used in the act of swallowing. It has importance in the digestive system and is the primary organ of taste in the gustatory system.'
How do scientists use the fossil records to create a history of the earth?
Answer:
The fossil record tells the story of the past and shows the evolution of forms over million of years.
List one Characteristic of Life that lets you
know that a tree is alive.
Answer:
growth and change, ability to reproduce; have a metabolism and breathe;, and maintain homeostasis
Explanation:
Carlos is heading a student council project to improve cafeteria meals. He surveyed all students who eat cafeteria
lunches to find out which of the five weekly cafeteria options they like least. What steps should Carlos take to best
display this data?
O He should total the votes for each of the options and plot these five values in a pie chart.
O He should total the votes for each of the options and plot these five values in a line graph.
O He should average the votes for each of the options and list the averages in a data table.
O He should analyze the votes for each option and summarize the findings in a paragraph.
Answer:
that answer is a i just took the test
Explanation:
Answer:
A i took the test
PLEASE HELP!
A researcher performed an analysis of the elemental composition of several fish species living in the
same body of water. The amount (in parts per million) of iron (Fe), calcium (Ca), potassium (K), sodium
(Na), and magnesium (Mg) found in each species is shown in the table.
45.10
Species Fe
Ca
K
Na
Mg
Species A 55.70 179.51 107.94 45.39
33.89
Species B 23.74 134.16 105.19
33.38
Species C 67.18 785.18 103.60 42.71
32.45
Species D 30.09 457.59 107.97 44.68
33.84
Based on this data, identify which elements are found in similar concentrations across all species of fish
tested. Explain how this data provides support for the hypothesis that all four species of fish descended
from a common ancestor.
Based on the data table on the concentration of the elements Fe, Ca, K, Na, and Mg in the different fish species:
the elements which are found in similar concentrations across all species of fish are K, Na, and Mgthis data supports the hypothesis that all four species of fish descended from a common ancestor because these three elements are found as cofactors in enzymes, thus, the four fish species have similar proteins.What is the importance of elements in living organisms?Elements are the building blocks of all living things.
Some elements are found in small amounts in the body whereas other elements are required in large quantities.
Some of the most important elements in living organisms include carbon, hydrogen, oxygen, sodium, potassium, and magnesium.
Some of the importance of elements in living organisms include:
as part of proteinsas cofactors in enzymesas part of food moleculesLearn more about elements at: https://brainly.com/question/23292423
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What other three things do Volvox also likely lack?
A. Organs
B. Organ systems
C. Cells
D. Muscles
Answer:
B,D,A is the right answer.
Explanation:
The three things Volvox lack is Organs, Organ System, and muscles.
What Volvox likely lacks?
This is the most complex level of organization in life. several Volvox, one of the simplest multicellular living things. Volvox has no tissues.
What makes Volvox unique?In the northern region, the eyespots are more developed. This helps the colony to swim towards the light. This differentiation of cells makes Volvox quite unique. It is a colony that comes really close to being a multi-celled organism.
What is a fact about Volvox?
Volvox is a freshwater alga that is found in ponds, ditches, and even in shallow puddles. Volvox is nothing but a chlorophyte or green algae which exists as a grand spherical colony. Each little algae within the colony hold two flagella, whip-like hair.
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What happens when humans bum fossil fuels?
O Carbon is released into the atmosphere.
O Carbon is removed from the atmosphere.
O Carbon is added to the the carbon cycle.
O Carbon is destroyed.
What is the significance of study human biology in understanding cultural capacity? Explain your answer with atleast 1 paragraph
Answer:
Hope it helps
Explanation:
The Evolution of the capacity for culture is important in order to understand how the human body works. This is also the case for developing methods necessary for solving problems that may arise from accidents, diseases, and sickness.
The significance of studying human biology in understanding cultural capacity should be explained below.
Significance of studying human biology?The Evolution of the capacity for culture should be significant in order to understand how our human body works. It should be applied for creating the methods that are significant for solving problems that may occur from accidents, diseases, and sickness.
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what is 120*566= just helppp
Answer:
67,920.
Explanation:
hope this helps!!
Which of the following is not a part of the scientific method?
Scientific theories are just controversial guesses
Deciding how the world should be
Peer review
Relying on objective observation
Which part of an amino acid has the greatest influence on the overall structure of a protein:__________a) the (-NH2) amino groupb) the R groupc) the (-COOH) carboxyl groupd) both A and C
Answer:A - NH2
Explanation:
The part of an amino acid has the greatest influence on the overall structure of a protein is the R group.
The amino acid has the R group and it is simply a term use to state the variable group on each amino acid. The amino acid framework is similar on all amino acidsThe structure of the R-group influences the reactivity of the chemical and solubility of the amino acidConclusively, we can say that the part of an amino acid has the greatest influence on the overall structure of a protein is the R group.
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A researcher measured the temperature at which two different samples of double-stranded DNA denature (separate into single strands) Sample 1 denatured at a significantly lower temperature
than sample 2 did. Based on the data, the researcher claims that the DNA in sample 2 is composed of a higher percentage of guanine and cytosine than the DNA in sample Ils
Which of the following best supports the researcher's claim?
Sube
The bonds between guanine and cytosine are covalent bonds, which require more energy to disrupt than those between adenine and thymine
B
Guanine cytosine pairs denature at a higher temperature because they have more hydrogen bonds between them than adenine-thymine pairs do
с
Aderine thyminepalis require less energy to separate because adenine and thymine are both single-ring bases
D
Guinine cytosine pas require more energy to separate because one is purine and one is a pyrimidine
Answer:
The correct option is b
Explanation:
There are four nitrogenous bases that can be found in a DNA molecule; Adenine, Thymine, Guanine and Cytosine. The adenine on one strand can only bond (hydrogen bond) with the thymine on the complimentary strand (to form base pair) and vice versa while the guanine on one strand can only bond (hydrogen bond) with the cytosine on the complementary strand (to form base pairs) and vice versa.
There are three hydrogen bonds between Guanine and cytosine base pair while there are two hydrogen bonds between adenine and thymine base pair; hence, DNA samples with higher guanine-cytosine base pairs denature at a higher temperature than DNA samples with lower guanine-cytosine base pairs or with more adenine-thymine base pairs. This is because, it requires more energy to break the triple bonds between the guanine-cytosine base pairs than the double bonds of adenine-thymine base pairs.
From the description above, we can deduce that the correct option is b
Answer:
the correct answer is D
Explanation:
i have checked the answer in a flashcard
Study the timeline.
Based on the timeline, about how many years ago could the oldest mammalian organism have lived?
5 million years
200 million years
1.5 billion years
4.5 billion years
Why is it important for cells of multicellular organisms to undergo mitosis? A) mitosis allows for reproduction B)mitosis increases variation within an organism. C) mitosis produces cells that are different from the original dividing cell. D)mitosis produces cells that are identical to the original diving cell
The answer is A mitosis allows for reproduction. This is because during mitosis two identical daughter cells are created which can contribute to an embryo.
Hope this helps ! <3
It is important for cells of multicellular organisms to undergo mitosis because mitosis produces cells that are identical to the original dividing cell. Thus, the right option would be D.
Mitosis involves the division of vegetative cells and it results in daughter cells with the same morphology and genome as the parent cell.
The division of vegetative cells in multicellular organisms will ensure that damaged or dead cells are replaced with cells of similar morphology and genome.
Apart from replacing dead or damaged cells, mitosis also allows multicellular to grow in size by allowing similar cells to spring from existing cells.
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According to the concept of entropy, what will likely happen to most molecules over time? A.They will bind to other molecules. B.They will break down. C.They will remain unchanged. D.They will turn into carbon molecules.
Answer:
B.They will break down.
Explanation:
Entropy is defined as the thermal energy per unit temperature that contribute to doing useful work in a system. The concept of entropy says that entropy is measured by the random or disordered motion of molecules of a system.
As the entropy will increase over time, the molecules will break down into two or more due to the random and disordered motion of molecules.
Hence, the correct answer is "B.They will break down.".
Net Force:
N
Direction:
Balanced or Unbalanced:
PLEASE ANSWER PLEASE
Answer:
balanced
Explanation:
Since equal pressure is being applied from opposite sides, they cancel out. think about pushing a box from opposite sides. Its not gonna move. Hope I was a help! :)
Who is the first discovered plants were made of cells?
Answer: PLEASE MARK ME AS BRAINLIST
Explanation:
The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.
the German botanist Schleiden proposed that all plants are made up of plant cells. Thank you.
Answer:
Robert Hooke - 1965
Explanation:
Where and how is a star born?
Answer:
Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.
Explanation:
Answer:
Through sex and in the vagina
Explanation:
Ecosystem services are services that are supplied by humans for the environment.
O a. True
O b. False
Answer:
b) false
Explanation:
ecosystems services benifit humans, but are not supplied by humans. ecosystems can and do exist without human intervention
Why are the water weed cells green, but the onion cells are not? Answer in complete sentences. WILL MARK BRAINLIEST!!!
Answer:
Water Weeds have a main extra feature that plant cells have is a cell wall on the outside. So it's mostly made of cellulose, which gives a tough covering on the outside of the cell membrane. And therefore, gives plant cells a distinctive polygonal outline. And the reason why Onion cells aren't green is that cells deep within the structure of plants are not green. Second, not all onion cells are lacking in green color. The bulb of the onion lacks green, but the stem and leaves of the onion plant are green. The reason the bulb is white, and not green is that it has no chlorophyll.
- Hope this helps
Chlorophyll, a distinctive green substance (pigment), fills the chloroplasts. The cell uses this green pigment to absorb light photosynthesis. Cells in onions are not green. No light, hence bacteria don't require chloroplasts.
What does chlorophyll do for your body?Supplement companies assert that chlorophyll has a wide range of benefits, and including ability to increase red blood cells, aid in weight reduction, mend damaged skin, remove toxins, reduce inflammation, and prevent cancer. It's an amazing list, yet only a few of the statements are supported by research. nausea while your digestive system processes the chlorophyll. vomiting, which can harm your teeth by producing stomach acids.
Is it safe to take chlorophyll everyday?An abundance of essential vitamins and minerals may be found in chlorophyll extracts, which also have great pro government, antibacterial, and antioxidant properties. Chlorophyll can be used daily without harm, albeit the recommended quantity varies depending on the type of green you eat. Consuming saffron milk, peppermint tea, clove tea, green tea, protein drinks, green vegetable smoothies, etc fiber-rich juices will drastically reduce you body fat over night.
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Why was the Battle of Yorktown such a devastating defeat for the British?
Answer:
Cornwallis had marched his army into the Virginia port town earlier that summer expecting to meet British ships sent from New York. ... Cornwallis' surrender at Yorktown effectively ended the Revolutionary War. Lacking the financial resources to raise a new army, the British government appealed to the Americans for peace
Explanation:
Answer:
The British lost an entire army.
Explanation:
i just took the test.
Meat tenderizer contains an enzyme that interacts with meat. If meat is coated with tenderizer and then placed in a refrigerator for a short time, how would the enzyme be affected?
Answer:
The enzyme would be deactivated.
Explanation:
Enzymes are usually deactivated by low temperatures.
Enzymes are proteinous in nature, function by catalyzing biological reactions, and have a particular range of temperatures where they function optimally. Above these temperatures, the catalyzing attribute of enzymes gradually declines till they are denatured by high temperature and below the optimal temperature, their catalyzing attributes also decline. However, instead of being denatured by very low temperatures, they become deactivated instead.
What is the Richter Scale?
Answer:
The Richter scale is a numerical scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations. The more destructive earthquakes typically have magnitudes between about 5.5 and 8.9; the scale is logarithmic and a difference of one represents an approximate thirtyfold difference in magnitude.
Explanation:
Answer:
a numerical scale for expressing the magnitude of an earthquake
Explanation:
What is the difference between the velocity and the speed of an object?
-:---:--
Velocity is the change in distance over time, while speed is the change in velocity overtime.
Velocity has a direction associated with it, while speed has no specific direction.
Velocity has no direction associated with it, while speed has a specific direction.
Velocity is the change in speed over time, while speed is the change in distance over time.
Territorial animals like spiders that fight off intruders would be expected to be _______. a. regularly distributed b. randomly distributed c. clustered together d. b and c
Answer:A
Explanation:
I took test on edge. and it was right
Territorial animals like spiders should be distributed regularly. If they clustered close, they may all die at once and lose territory. So, they're regularly disseminated to battle predators and intruders and protect their territory.
Why do animals defend their territory?Territorial behavior is adapted in many different ways; for example, it may allow an animal to mate without being interrupted or to rear its young in an area where there will be little competition for food. Both of these things are adaptive. In addition to this, it can minimize overcrowding by preserving the ideal space between individuals within a community.
It is reasonable to anticipate that territorial animals such as spiders will routinely distribute themselves. They had to do this in order to protect their area because if they huddled together, there was a greater chance that they would all perish at the same time, which would result in the loss of territory. As a result, in order to prevent this from happening, they are routinely dispersed, and they are able to defend their region against invaders and predators.
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