Why do you think DNA is duplicated before
a cell divides? Why do you think the sister chromatids
are attached to one another?
The two cells that result from a single cell need to have the same amount of genetic material as the initial cell, therefore the DNA needs to be duplicated before the cell divides.
The sister chromatids are attached together so that during anaphase the daugther cells will receive the same chromosomes
Are all the organisms on the earth today can be identified? One word answer grade six science Question
Answer:
No
Explanation:
Not all the organisms on the earth today can be identified.
There are still several species of plants and animals that are yet to be identified by humans. New species are being discovered virtually every day and Taxonomixts are working continuously to name and place these unknown species in already established categories of organisms.
What is the basic equation for respiration?
F.) carbon dioxide + glucose -> Oxygen + Water
G.) carbon dioxide + water -> oxygen + glucose
H.) oxygen + glucose -> water + carbon dioxide
J.) oxygen + water -> glucose + carbon dioxide
Answer:
The answer is J
Explanation:
Hope it helps.
BIOLOGY LOVERS????? Any help
Answer: 164 pounds
Explanation:
Lice live on a person's head. *
Answer:
It's gross to say, but it's true!!
Explanation:
Head lice can survive on a human host for approximately 30 days. Head lice generally cannot survive longer than 24 hours off the host. A female louse lays up to 3-5 eggs per day. It takes 7-10 days for the eggs to hatch and another 7-10 days for the louse to mature and lay their own eggs.
Hope this helps!! ;)
What kind of events can occur to slow or restart ecological succession?
O wind, rain, and ice can cause ecological succession
the seasons make it start over every year
O nothing can restart it once it has begun
O fire, flood, farming, and ice ages can affect ecological succession
Answer:
O fire, flood, farming, and ice ages can affect ecological succession
Explanation:
Ecological succession is defined as the process in which ecology or environmental structure changes as the time passes.
Fire, flood, farming, and ice ages are some of the factors that can slow or restart secondary ecological succession because these factors can remove most vegetation and animals unable to flee the affected area.
Hence, the correct answer is "fire, flood, farming, and ice ages can affect ecological succession".
PLEASE HELP I WILL MARL BRAINLIEST AND I NEED AN EXPLANATION PLEASE
Answer:
Ocean and atmosphere
Explanation:
Because when the sea evaporates it goes to the atmosphere creates cloud clouds get heavier and rain comes down
A physician has a patient with diabetes. Due to a mutation in the patient’s insulin gene, he does not make the insulin protein. In order to treat the patient, the insulin protein will be made in a lab by inserting the human gene for insulin into bacteria. The bacteria will then produce insulin, which will be collected and given to the diabetic patient. Which type of genetic technology is involved in the production of the insulin protein?
Answer:
I think its circular DNA or plasmid.
What does epithelial tissue do?
write this the asnwer in a simple way
Answer:
Epithelial tissues are general throughout the body. They form the covering of all body surfaces.
Explanation:
(please mark brainliest if you can)
Answer:
They perform a lot of functions such as protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
Explanation:
Enzymes ___________ the activation energy required for a chemical reaction which will ______ up the reaction process.
Enzymes reduce the activation energy required for a chemical reaction, which will increase the reaction process.
What are enzymes?Enzymes are bio-catalysts. They are made up of proteins that increase the speed of the reaction. They reduce the activation energy of the reaction.
Enzymes do not involve in the reaction and in the end of the reaction. They separate from the reaction and their substance is specific, they are specific to reactions whose speed is increased by these enzymes in high temperatures and pH.
Their structure changed as they are protein and with extreme where they also get the nature.
Therefore, Enzymes lower the activation energy required for a chemical reaction, which speeds up the reaction.
To learn more about enzymes, refer to the link:
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Jose likes to creative power pegs. He likes to remember things based on a number order, and he learns best when he is in action. With what part of his brain does Jose likely think?
Front brain
Left brain
Rear brain
Right brain
Answer:
left brain
Explanation:
Which process is included in the formation of both metamorphic and sedimentary rock?
A.
heating
B.
recrystallization
C.
compaction
D.
weathering
Answer:
C. compaction
Explanation:
The weight on the lower layers increases as the layers of sediment stack up. The soils are pressed together, squeezing out some water mixing in with the sediments. This approach is known as compaction.
The sedimentary series has formed into a sedimentary stone following compaction and cementation.
please please help me please
What will be the results in the F2 generation after a monohybrid cross?
all recessive traits
3/4 dominant and 1/4 recessive
all dominate traits
1/3 dominant and 2/3 recessive
Answer: [tex]\dfrac34[/tex] dominants and [tex]\dfrac14[/tex] recessive.
Explanation:
Mendel's monohybrid cross is definied as
a genetic combination of two homogeneous genotypes.One is dominant(TT) to other (tt-recessive).Result in F1 generation: 4 dominant(Tt), 0 recessive (tt)
Result in F2 generation: 3 dominant(TT, 2Tt), 1 recessive (tt)
[If one T is present then we call it Tall (Donimant effect), if none then we call it dwarf]
The results in the F2 generation after a monohybrid cross: [tex]\dfrac34[/tex] dominants and [tex]\dfrac14[/tex] recessive.
1. Which of the following are considered nonliving? (Check all that apply.) will give brainly
train
grass
lake
hamster
elephant
salt
As the moon revolves around Earth, it appears to change shape. The moon goes through phases during a period that lasts about one month. Describe what causes the moon to change shape as it goes from a full moon to a last-quarter moon.
Answer:
The correct answer is - the reflected light of sunlight changes as it moves around the earth.
Explanation:
The moon appears to change its shape during the revolving around the earth. This change in the shape of the moon takes place due to the fact that the moon does not have its own light and it reflects light from back to us on the earth.
The moon changes its shape on the basis of how much-reflected light or moon we can see and how much of the moon is facing the sun.
The correct answer is - the reflected light of sunlight changes as it moves around the earth.
a reactant in cellular respiration
Answer:
Oxygen or Glucose
Explanation:
Oxygen and glucose are both reactents in cellular respiration.
what is the role of precipitation in the water cycle
Answer:
Precipitation is water released from clouds in the form of rain, freezing rain, sleet , snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth. Most precipitation falls as rain. How do raindrops form?
Explanation:
Answer:
Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth. Although, most precipitation falls as rain.
Drag the tiles to the correct boxes to complete the pairs,
Match each muscle name with its corresponding feature.
internal
rectus
biceps
abductor
number of origins
action
location
fiber direction
It's in the picture :)
Answer: 8
Explanation:
help would be very appreciated
If 10 glucose molecules enter the Krebs Cycle, how many possible molecules of ATP can be produced?
Answer:
20 molecules of ATP
Explanation:
Krebs cycle or also known as Tricarboxylic acid cycle (TCA) is the second stage of aerobic cellular respiration which occurs in the mitochondria. In the kreb cycle, pyruvate, which was synthesized in the first stage of cellular respiration (glycolysis) is broken down into carbon dioxide (CO2).
However, in the krebs cycle, two (2) ATP molecules is produced per glucose molecule that enters cellular respiration. Hence, according to this question, If 10 glucose molecules enter the Krebs cycle, (2 × 10) = 20ATP molecules will be possibly produced.
Answer:
20 molecules of ATP
Explanation:
Have a good day :)
Group 1 elements are reactive because they have ____ electron(s) in their outer shell.
Shabbir added an unknown substance to a bottle of water and shook the bottle until the two substances were combined. Then he set the bottle aside for 30 minutes. When he came back, the unknown substance had settled on the bottom of the bottle, and the water had risen to the top. Based on Shabbir’s experiment, what can you tell about the unknown substance? A It is hydrophilic. B It is a type of oil. C It is hydrophobic. D It is a homogeneous solution.
Answer:
C. it is hydrophobic
Explanation:
hydrophobic means failing to mix with water, and this is the exact situation described. if i need to elaborate more tell me
It is best to say that marine debris _______.
a.
is a hazard to marine animals
b.
degrading ocean health
c.
a pervasive, global pollution problem
d.
all of the above
Answer:
D all of the above
Explanation:on edgenudy
An extracellular fluid concentration imbalance (also known as a water imbalance)
can be detected by changes in the serum sodium level.
True Tony
False
Answer:
welp
Explanation:
welpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwelpwel
On a sheet of paper, write five compound subjects and five predicates. Then cut them out. Mix and match the compound subjects and predicates. What silly sentences can you make?
Answer:
Some of the compound subjects are given below:
The Red and White earbudsMy beginning and endingThe Author and FinancierHis wife and legal consultantHe is Judge and executionerSome predicates are as given below
Will rise againcannot return to the company the way it iscoming to set the tabletravelling for the holidayswalking like a sergeantWhen mixed together in no particular arrangement intentional matching we have:
The Red and White earbuds will rise againMy beginning and end cannot return to the company the way it isThe Author and Financier coming to set the tableHis wife and legal consultant traveling for the holidays He is the Judge and executioner walking like a sergeantExplanation:
When two or more individual nouns or noun phrases are combined to form a single or longer noun phrase, it is called a compound subject. In other words, When more than one noun is put together to act as a single subject, it is said to behave as a compound subject. For example, "My son and partner will run this company when I travel out of the country". In the sentence above, the compound subject is "My son and partner".
Predicates on the other hand are parts of a sentence that contains the action words or phrases about a subject. For example, "The truck has been sold" . The part of the sentence that reads "has been sold" is the predicate. Whilst the subject is the Truck.
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Why are fish dying in Prospect Park Lake?
Fish are dying because the park keepers are putting too much fertilizer on the grass that then runs off into the water.
Fish are dying because the water comes from NYC tap water, which has added
phosphorus to prevent lead from lead pipes from leaching into the tap water.
Fish are dying because there is human waste in Prospect Park lake.
(this is 7th grade science). please help
Answer:
because of pollution
Explanation:
pls answer ASAP Plants have different signals for attracting pollinators. It is not uncommon for the same plant to have more than one signal. Which of the following would NOT be a way in which plants attract pollinators?
Answer:
I would say the answer would be A. barbs
Explanation:
C and D are the ones I know of but if the bright colored plants then maybe patterns would fall into that category so A would NOT be a way in which plants attract pollinators.
Plants have different signals for attracting pollinators, and it is not uncommon for the same plant to have more than one signal, these colors attract different pollinators for pollination purposes.
What is the significance and impact of pollination in ecosystems?Pollination helps maintain biodiversity and the balance of ecosystems; it is essential for the production of crops, fruits, vegetables, and nuts and has significant ecological, agricultural, and economic importance. Pollination is an important process that is provided by wild and managed pollinators in different ecosystems.
Hence, plants have different signals for attracting pollinators, and it is not uncommon for the same plant to have more than one signal, these colors attract different pollinators for pollination purposes.
Learn more about the pollination process here.
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How does light
color affect the rate of photosynthesis
Answer:
Explanation:
Plants can absorb any color of light but how it is affected is dependent on the color. the reason this is because the chlorophyll in plants absorbs the light and transforms it into chemical energy. According to scientists if you were to shine purple light on the plant it would enhance the taste and color of the plant. If you were to use blue light it would increase the speed the plant grows at. if you use a yellow light it would decrease the speed that the plant grows at. In conclusion it depends on what color is used.