Calculate the force needed to cause a 6 kg bowling ball to accelerate 20 m/s2.
Answer:
120N
Explanation:
F=ma
120N=6kg(20m/s^2)
Compare the exoskeletons of two invertebrates: a grasshopper (Arthropod) and a clam (Mollusca). How do they differ in relation to support and movement?
Answer:
Mollusca: Unsegmented exoskeleton, with no appendixes articulated to them. This skeleton has a calcareous origin. Arthropoda: Segmented exoskeleton, with different appendixes articulated to them, which develop different functions. This skeleton has a chitinous origin.Explanation:
Clams are bivalves. Their calcareous exoskeleton has two valves dorsally articulated to each other. They do not articulate with any appendix, although. These animals also have a foot, a small head, and a developed mantle cavity. The valves are convex, oval, and unsegmented. They are composed of three layers: periostracum, prismatic, and pearly. En the dorsal portion of each valve, there is a bulge called the umbo, which is the oldest part of the valve. The articulation has some teeth-shaped structures that are intercalated, maintaining the valves together and fixed. Grasshoppers have a chitinous exoskeleton divided into three principal segments or regions that allow their movement: head, thorax, and abdomen. The head is orientated in such a manner that their feeding apparatus is heading down. Also, the head segment has composed eyes and antennae. The thorax is the medial region of the body. It has three segments: the prothorax, mesothorax, and metathorax. Each of these segments articulates with a pair of legs. Finally, the abdomen is composed of many segments that might reach up to 7 or 11.What is the natural tendency of molecules to spread from an area of high concentration to an area of low concentration?
A.
Active transport
B.
Vesicle
C.
Passive transport
D.
Diffusion
Answer:
This concept is known as diffusion. Diffusion is a passive process, as it requires no energy for it to occur. In a cell, it is used as a method of passive transport since it requires no energy.
Explanation:
A P E X
Romeo and Juliet How can love bring both joy and pain?
Answer:
Explanation:
How can love bring both joy and pain?
love can be bittersweet an example of this is imagine you fall in love with someone you want to be with them forever and they make you happy, but the people around don't like it they find it disgusting you have to keep your loved one a secret from everyone in fear people might disown you.
love can be bittersweet an example of this is imagine you fall in love with someone you want to be with them forever and they make you happy, but the people around don't like it they find it disgusting you have to keep your loved one a secret from everyone in fear people might disown you.
Who was Romeo and Juliet?A long-standing feud between two wealthy families turns violent. A gang of masked Montagues break into a Capulet celebration, risking additional strife.
A young Romeo Montague who is infatuated with love falls in love right away with Juliet Capulet, who is about to wed the man of her father's choosing, the County Paris.
The women set up the wedding for the following day with the aid of Juliet's nurse, but Romeo is exiled after killing Tybalt, Juliet's own cousin, when intervening in a street fight. Juliet follows the Friar's plan and pretends to die in an effort to reconnect with Romeo.
Therefore, love can be bittersweet an example of this is imagine you fall in love with someone you want to be with them forever and they make you happy, but the people around don't like it they find it disgusting you have to keep your loved one a secret from everyone in fear people might disown you.
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How does the phrase
division of labor relate to differentiation?
10.
_________produces pollens and______
develops into the fruit.
Answer:
stamen produces pollen ovules develops into fruit
Explanation:
Which codon is the code for the amino acid serine (Ser)?
Messenger
Second base in codon
RNA Codons
U
С
A
G
UUU
Phe
UCU
UAU
UGU U
UUC UCC UAC
Tyr
UGC
Cys
U
Ser
UUA 1
Leu
UCA UAA Stop UGA Stop A
UUG UCG UAG Stop UGG Trp G
CUU CCU CAUT CGU U
His
CUC ССС САС! CGC
Leu
Pro
CUA CCA CAA CGA
Gin
CUG CCG CAG CGG
AUU ACU AAU
As
AGU
Ser
AUC lle ACC
ААС! AGC
A
Thr
AUA ACA
AAA
Arg
AUG startet ACG AAG AGG
GUU
GCU
GAU
Asp
GGU
U
GUC GCC
GAC
GGC
G
Val
Ala
GUA
Gly
GCA
GAA
Glu
GGA
A
GUG GCG GAG
GGG
Arg
First base in codon
이이이이이드
Third base in codon
OPOCO POCO Blocos
Lys AGA
A. AGU
B. UGA
C. AGG
D. AGA
No
Answer:
four codon in mRNA sequence code for serine aminoacid.
Explanation:
UCA
UCG
UCC
UCU
these four codons code for aminoacid serine.
Porcupines have long sharp hairs called quills. What is the main function of the quills on the porcupine?
Answer:protection from other predators.
Explanation: the quills will stick into a predator that attack the porcupine Note: it does NOT shoot its quills
Answer: protection from other predators.
what is mean by exc
Answer:
QEMM Exclude file for Optimize (do not process the data) Computing » File Extensions.
ALOT OF POINTS MARKING POEPLE AS BRAINLIST ⚠️⚠️
7. List 5 factors, other than the lynx, that could change the number of hares.
Answer:
1. Weather
2. Humans
3. Grass
4. Lynx's Predators
5. Other Grass eaters
Predict what would happen if chemical energy is burned?
Energy is converted to mechanical energy.
The amount of chemical energy starts to decrease.
Energy is destroyed.
Sound energy can be created through an explosion.
Answer:
The amount of chemical energy starts to decrease.
Explanation:
Hope this helped
Which of the following questions would BEST
determine whether a plant is undergoing the
Calvin cycle?
A. Is NADPH being produced?
B. Is oxygen being produced?
C. Is glucose being produced?
D. Is ATP being produced?
Answer:
C
Explanation:
Glucose is the end result of the calvin cycle. It is not Oxygen, NADPH, or ATP because those are produced in the light reactions.
Is glucose being produced? is the question which will best determine
whether a plant is undergoing the Calvin cycle.
The Calvin cycle is known s the light independent or dark reaction which
takes place during the process of photosynthesis by plants. The final
product for this cycle is Glucose.
Other compounds such as NADPH, ATP and oxygen are all formed during
the light dependent reactions which is why asking if glucose is produced is
the most appropriate choice.
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What should scientist do after completing a scientific investigation
Answer:
confirm the results if you're using edge
Explanation:
Answer:
B. confirm the results
Explanation:
i just took it
What’s the answer ? Pls just help yall I’ll mark the brainliest if your willing to help
Answer:
answer is d.
hope this helps u
What key adaptation allowed the ferns to be successful and populate more areas than the bryophytes?
Answer:
Possession of root, leaves and vascular/conducting tissues
Explanation:
Ferns and bryophytes are regarded as lower plants in botanical studies. Bryophytes have been in existence prior to the appearance of ferns. BRYOPHYTES are a group of non-vascular plants i.e. lack conducting tissues such as xylem, phloem etc. They include misses, liverworts and hornworts. Ferns, on the other hand, belong to a group of vascular plant species called PTERIDOPHYTES.
However, in terms of population and domination of the Earth, ferns are believed to be more successful than their counterparts (bryophytes). This is primarily because of the possession of true roots and vascular tissues like xylem (for conducting water), phloem (for conducting sugars) by FERNS making it easily adapted to life on land.
Why is it important that animals have different characteristics? Include at least two examples of animals and their characteristics.
Answer:
some animals have 4 legs and some have 2
Explanation:
SOMEONE PLZ HELP ME!!!!!!!
Answer:
nucleus mitochondria ,
, lysosome i think
Explanation:
Answer:
A) nucleus
B) mitochondria
D) lysosomes
Explanation:
you can look at a diagram and find the differences
If you multiply six positive numbers, the product sign will be
Answer:
Positive
Explanation:
Because there is no negative numbers in your equation and a positive times a positive equals a positive.
Histones are small proteins with a strong positive charge at physiological pH. They are found in the nuclei of eukaryotic cells and package DNA into nucleosomes, the fundamental structural units of chromatin. Based only on this description, what two forms of chromatography could you use, one after the other, to separate histones from other cellular proteins? Explain your reasoning.
Answer:
Two modes of chromatography that could be used over and over, based on characteristics of histones throughout the issue, are:
Size-exclusion Chromatography Ion exchange chromatographyExplanation:
Using size exclusion chromatography:A stationary step, consisting of such a polymeric material with numerous pores of various sizes. The larger proteins would travel further as the solvent system comprising the analytes flows through the paper chromatography and therefore will be separated first. That was because their greater size does not in itself allow the pores found in the polymer to get trapped. Tiny proteins such as histones, and on the other hand, can pass slowly across the process to have been eluted later.
Using Ion exchange chromatography:As even the histone properties at biological pH are strongly positively charged, through the use of highly reactive particles as when the stationary step will allow histones to connect to themselves and now all the proteins, as well as favorable proteins that are poorly absorbed, would be eluted. Many positively charged molecules, that aren't as highly charged at around the same pH as histones, will stay throughout the stationary step, however, based on whose net charge, should flow independently of histones.
The two classes of chromatography techniques include size-exclusion and ion exchange chromatography.
What are size-exclusion and ion-exchange chromatography?Chromatography is a technique used in molecular biology laboratories to separate biomolecules.
Size exclusion chromatography is a technique capable of separating biomolecules according to size by using filtration in a gel. Size exclusion chromatography is a technique capable of separating biomolecules and ions according to their affinity to a given ion exchanger.In conclusion, the two classes of chromatography techniques include size-exclusion and ion exchange chromatography.
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Which of these statements about the world's food supply is most accurate? A. Overnutrition is greater world problem than undernutrition. B. Food is more expensive than in the pre-1970 world. C. Some food is diverted for use as fuel. D. Less food per person is produced today than in the past.
Answer:
C. some food is diverted for use of fuel
Scientists studying hair samples can tell how long it has been since someone dyed or bleached their hair.
O True
O False
Forensics
Which statement describes competition in an environment? Organisms share a place to sleep. A living thing consumes berries on a tree. Sunlight shines only three months out of the year. A stream supplies an abundance of water in a forest.
Answer:
Sunlight shines only three months out of the year.
Explanation:
I think this is right
Because abundance means a large amount so there would be no competition there.
If organisms share a place to sleep then that means no competition
If a living thing is consuming berries on a tree then the living thing is just eating
But if the sunlight only shines three months out of the year then that can cause a shortage of food in the environment causing for the living creatures in the environment to compete for the food that is left since there won't be enough to supply for and abundance of living things.
The statement that describes competition in an environment is option B a living thing consumes berries on a tree. Thus, consuming berries on a tree is reducing the availability of the food for other livings depends on the berries.
What is survival of living things?In the nature, the concept that survival of the fittest domintates. The organisms which are fit physically and are smart to gather food will survive in the nature otherwise they will extincts.
An ecological community is a collection of populations of at least two distinct species that interact both directly and indirectly in a specific geographic area. Within this community, diffrent organisms can be found .
Numerous ecological characteristics and functions, including nutrient cycling and food webs, are based on interactions between species. Depending on the evolutionary context and environmental factors that they take place in, these interactions can have a variety of different natures.
Because of this, ecological interactions between particular individuals and entire species are frequently difficult to identify and quantify and depend on their scale and context they face extinction. Hence, option B is correct.
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In which of the following relationships do both species benefit?
A. Competition
B.Commensalism
C. Parasitism
D. Mutualism
Explain one way the water cyce affects weather.
Answer:Consequently, the temperature will fall. Rainfall and snow are results of water cycle and can lead to severe weather conditions. Excessive rainfall due to water cycle can cause floods. Extremely low rainfall, lack of adequate water sources can lead to draught in a given region.
Explanation:
URGENT PLEASE HURRY
Answer:
starting point 3 traveling at a velocity of 15 I think
Explanation:
sorry if you get it wrong
Which of the following is not a viral disease : (needed ASAP)
1. AIDS
2. Typhoid
3. Mumps
4. Polio
Answer:
It is typhoid. typhoid is not a viral disease
Answer:
Typhoid is not a viral disease.
Explanation:
Viral diseases are spread through virus particles, while typhoid is spread from typhi bacteria.
Which of the following mRNA codons will bind to the tRNA anticodon 5' GCU 3', considering wobble–base pairing rules. Select one:
a. 5' CGA 3'
b. 5' AGU 3' and 5' AGC 3'
c. 5' AGC 3'
d. 5' UGA 3' and 5' CGA 3'
Answer:
a. 5' CGA 3
Explanation:
The wobble type of base pairing also comprises the base pairs formed by inosine (I) also called hypoxanthine with Cytosine(C), Thyamine(T), or Adenine (A),
Where purine base pairs A to G(or I), A to A, and G to C.
Where
5' GCU 3' pairs with
5' CGA 3
Therefore G pairs to C, C pairs to G, U pairs with A.
Sasha is studying a rock formation for her science class. Every few days she goes outside to study the formation. The questions she is
investigating are shown.
• Did the rock freeze and
unfreeze?
• Are there any plants growing on
the rock?
• Did the rock change color?
What question is Sasha most likely trying to answer?
O A. What is the age of the rocks in the rock formation?
B. What type of rocks are found in the rock formation?
C What processes are weathering the rock formation?
D. What minerals are the hardest in the rock formation?
Answer:
ill say c
Explanation:
octopus and squid have chemoreceptors on their
Answer:
tentacles
Explanation:
hope this helps :]
Answer:
octopus have chemoreceptors in the epidermis
Explanation:
hope this helps a little
Which list of countries arranged least to most in terms of how much of their income they spent on food
1China Canada Poland Kenya
2Poland China Kenya Canada
3 Canada Kenya Poland China
4 Canada Poland China Kenya
Answer:
is number three
Explanation: