Answer:
In this given statement , the plastic base becomes negatively charged because plastic is an insulator . And the metal cup does not become charged because metal is a conductor.
Explanation:
Reason behind , why plastic base becomes negatively charged -: When a plastic base is rubbed with a dry cloth in the metal trophy, electrons are shifted from one material to the other. Thus, the substance that gains electrons (which is the plastic base) becomes negatively charged. thus , the plastic is an insulator , which causes charge (negative ) by rubbing.
Reason behind , why the metal cup does not become charged -: The metal cup is a conductor, and the surplus charge on the metal flows to the person who charges the cup and to the ground so that it is not charged. Thus, rubbing a metal can trigger hand\finger injury because metals generate excess heat in rubbing .
Which statement about ATP molecules is true?
A. The bond between the second and third phosphate group is most easily broken.
B. The bonds between phosphate groups form a ring structure
C.The addition of a phosphate group converts ATP to ADP
D.The removal of a phosphate group converts ATP to a higher-energy molecule.
Why can some things burn while other things cannot
Answer:
It is because of the chemical reaction taking place between the substance burning and the air just above it . ... This happen in many cases when the substance like sulfur because of the process called combustion of heat
why does water affect temperature in some regions
Answer:
water goes away heated if below rated tempeture
Explanation:
One type of cell that contains half the genetic information of an individual is a
sperm.
fertilized egg.
zygote.
gonad.
______is a type of reproduction in which the
genetic materials from two different cells combine producing an offspring.
Word blank
Answer:
se.xual reproduction
Explanation:
Answer:
- (Sexual Reproduction) is a type of reproduction in which the
genetic materials from two different cells combine producing an offspring.
please help me!
how can invasive species change an ecosystem?
Carlos and Veronica lead very similar lifestyles. They both run every day and eat healthily, but they both have smoked since they were 16. Carlos was diagnosed with lung cancer when he was 48, but Veronica never got cancer.
Which most likely explains why Carlos got cancer but Veronica did not?
O Veronica leads a healthier lifestyle than Carlos
O Carlos has a gene for cancer that was triggered
O Veronica has a gene for cancer that Carlos does not
O Carlos leads a healthier lifestyle than Veronica
Answer:
B. gene for cancer
I'm not 100% sure, but I'm like 90% sure.
The genetic code for a human is contained in ______________ chromosomes.
Answer:
The genetic code for a human is contained in ___DNA___________ chromosomes.
Explanation:
Answer:
dna
Explanation:
Graph A represents that the rate of photosynthesis..
Answer:
Hello!!! Princess Sakura here ^^
Explanation:
Choice 3 is correct because if you take a look at graph A you see that it does indeed increase, but only to a certain point then the line stops increasing.
Need Help due in a 1 hour : Earth Science
What hypothesis was validated by using paleo-magnetism?
Question 8 options:
a) subduction
b) hot spots
c) seafloor spreading
Answer:
C). Seafloor spreading.
Explanation:
Paleomagnetism is characterized as the 'study of the account of direction and strength of magnetic fields of the Earth in sediments, rocks, etc.' The hypothesis that was authenticated by using this study would be 'seafloor spreading' by displaying that magnetic reversal as strips of rotating polarity in gradually disseminating seafloor. This description of magnetic stripping by employing paleo-magnetism made the scientists believe that alternate crusts are being frequently made under ocean/sea. Thus, option C is the correct answer.
50 PTS!! PLEASE: Characteristics of plant cells include which of the following? Select ALL that apply.
cell plate in cell division
cleavage furrow
large hypertonic vacuole
no chlorophyll or chloroplasts
no cell wall, only plasma membrane
Answer:
large hypertonic vacuole
cell plate in cell division
Explanation:
. What happens to the enzyme activity when the body' emperature is 5 oC off its set-point?
Answer:
At low temperatures enzyme activity is low because the enzyme and substrate molecules have less kinetic energy so there are fewer collisions between them.
Explanation:
Both plant and animal cells have a nucleus.
A. True B false
Help please thank you
Answer:
A. True
Explanation:
Hope this helps!
1 poin Students are discussing what they know about cellular transport. Their explanations are displayed in the table. Which student(s) gave an accurate statement regarding cellular transport? * EXPLANATION Passive transport is the movement of molecules from high to low concentration. 2 The sodium-potassium pump is an example of active transport because it uses energy 3 Molecules move against the concentration gradient in passive transport. 4 Diffusion and osmosis are both examples of passive transport. O Student 1 only O Students 1 and 2 Students 1, 2, and 4 O Students 2, 3, and 4
Answer:
Students 1, 2 and 4
Explanation:
Passive transport goes from the higher concentration to the lower concentration in favor of the concentration. Student 3 referred to this as active transport and that is not right.
Simple passive diffusion, facilitated diffusion (via channels and carriers), and active transport are the fundamental forms of membrane transport. A bilayer membrane requires energy to flow through, even with simple passive diffusion. Thus, option C is correct.
What are the cellular transport mechanism in cell?The molecules will migrate from a lower concentration to a greater concentration during active transport.
Energy in the form of ATP is needed for this cellular transport molecule to function. Based on their purpose, the active cellular transporters are divided into four categories.
The sodium-potassium pump in the human body serves as a practical illustration of active transport. Here, potassium ions remain inside the cell while sodium ions are outside the cell.
Therefore, Exocytosis, endocytosis, antiport pumping, and symport pumping are the different types of active transporters.
Learn more about cellular transport here:
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______structures are fully functional, show evidence of a common ancestor, and may or may not have
the same function in different species.
Answer:
Homologous
Explanation:
Homologous structures are similar organs or structures that are found in different animals that suggest they come from a common ancestor. This is evidence of evolution.
The structures might not necessarily look identical and might not perform the same function. For example, the flippers of a dolphin, the wings of a bird, the legs of a dog, and the arms of a human are considered homologous structures.
Which of the following best describes how a channel protein moves materials across the membrane? A)They provide a carrier for specific molecules to bind to and cross the membrane via endocytosis. B)They provide a passage for specific molecules to cross the membrane via passive transport. C) They provide a tunnel for solutes to cross the membrane via active transport. D) They provide energy needed for solutes to cross the membrane via facilitated diffusion.
Answer:
I would like to say A.......
Mirgrating definition (in own words not from google)
In my own words... Migrating means like you're migrating another country. For example: Birds migrate another countries and the birds you never seen before. Some people migrating another countries and another.
I hope this one helps
Compare and contrast animal fats and plant and fish oils
Explanation:
On the other hand, lipids with unsaturated fatty acids (unsaturated fat) tend to be liquid at room temperature and thus they are called 'oils '. Lipids are present in all living organisms including Archaebacteria. ... Fats of animal origin are called as 'animal fat ' and those of plants are called 'plant fats'.
The areas on the surface of the sun that are exploding and releasing huge amounts of energy are called
A)
coronas
B)
prominences.
C)
photospheres.
D)
solar flares
Answer:
D)
solar flares
Explanation:
got it right
Someone please help this should give u 100 points
Answer:
development I think. I'm not sure but that's my best answer.
Answer:-
The cell wall, nucleus, vacuoles, mitochondria, endoplasmic reticulum, Golgi apparatus, and ribosomes are easily visible in this transmission electron micrograph.Where did the ball get the Energy that it needed in order to move
Answer:
I am not exactly sure what my answer options are but it sounds to me that would be potential energy.
Explanation:
Write down the secretion, function and deficiency disorders caused by the following gland.
(i) Pancreas (ii) Pituitary (iii) Thyroid gland (iv) Adrenal gland.
Answer:
(I) pancreas - it secretes insulin
it's function is to regulate the sugar levels in blood
if it does not function properly it causes diabetes (sugar)
(ii)pituitary- it secrets growth hormone
it's function is to regulate the growth in human body
if it produces lots of hormone then the body will increase a lot in size known as gigantism
if it produces very less hormone then the body will not increase in size and will be very short known as dwarfism
(III)thyroid gland-it secretes thyroxin
its function is to maintain metabolism growth
lack of iodine makes this gland swell up known as goitre.
(iv)Adrenal gland - it secrets adrenaline
it's function is to help us prepare and respond to stressful situations
because of its malfunction the body does not get enough hormones.
Hope it helps you
Why is water specific heat important to life on earth
Water is able to absorb a high amount of heat before increasing in temperature, allowing humans to maintain body temperature.
1a Make a claim: What happens to orbital time of the planet as the mass of the sun
increases?
Answer:
It causes a decrease in the orbital period.
A major reason that humans have negatively affected the environment in the past is that humans have
Answer:
Explanation:
attempted to control their population growth
The fact that people have historically prioritized short-term benefits above long-term sustainability is a significant factor in how severely humans have impacted the ecosystem.
Thus, human actions like deforestation, pollution, overfishing, and the burning of fossil fuels have historically been motivated by short-term economic or resource requirements without taking the long-term effects on the environment into account.
The stress on ecosystems and natural resources has grown due to population expansion and rising demand. Unsustainable practises, insufficient regulation, and a lack of awareness have all contributed. To solve these problems, we need to adopt more environmentally conscious behaviors by raising public knowledge of environmental issues.
Learn more about sustainability here:
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what type of cell transport does not require energy
Answer:
Passive Transport
Explanation:
Examples of passive transport-
diffusion of oxygen and carbon dioxide, osmosis of water, facilitated diffusion.Where do you get the dependent and
independent variables?|
Answer:
answer below
Explanation:
The norm is to place the independent variable on the “x”or horizontal axis and the dependent variable on the “y” or vertical axis.
PLEASE ILL GIVE YOU A BRAINLIEST
please answer these questions
Answer:
I don't understand your question
please hurry!! I will mark you brainliest I need this NOW
Which of the following terms are synonymous to vertical axis?
Select all that apply.
longitudinal axis
dorsoventral axis
frontal-horizontal axis
sagittal-transverse axis
Answer:
Longitudinal axis I believe is the answer.
A human body cell has 46 chromosomes. How many chromosomes will each of its daughter cells have after mitosis and cytokinesis?
Group of answer choices
92
46
0
23
