From a single fertilized ovum undergoing a series of rapid cell divisions, a human infant develops. The embryonic cells become specialized for a variety of functions. Which of these statements best describes how different cell types develop
Answer:
Each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells
Explanation:
Each cell type contains only the active parts of the DNA needed for that cell type Each cell type has only one chromosome containing the DNA needed for that cell type. Each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells Each cell has multiple copies of DNA that are affected in different ways by the environment to change the function of the cell at regular intervals.The correct answer would be that each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells .
Cell differentiation occurs when a specific segment of the DNA of a cell is expressed during gene regulation and control. The segment of DNA expressed would be dependent on the function the cell is meant to perform. Thus, if cell A is meant to perform an excretory role and cell B is meant to perform a digestive role, even though cells A and B contain the same DNA, different segments of their DNAs would be expressed so that each cell becomes adapted to its role.
This system provides energy from food
A. Circulatory
B. Endocrine
C. Digestive
D. Lymphatic
Answer:
c
Explanation:
Carbohydrates, proteins, and lipids provide this energy. Chemical bonds in molecules of these nutrients contain energy. When the bonds are broken during digestion to form simpler molecules, the energy is released.
what is the theory of plate tectonics?
Answer: The theory states that the earth's crust is divided into massive slabs known as tectonic plates.
Explanation:
These plates move on the mantle which is a layer made of magma, which consists of semisolid rocks.The heat from earth's core causes convection currents much like in a beaker full of water.But, here the force developed by the magma is so great that it slowly moves the plates like boats on sea over millions of years.
Help me plsss!!!!!!!
Answer:
Yes
Explanation:
The earth revolve around the sun at a constant speed of 67,000 mi/hr because if it is not, we will feel the earth moving.
Answer: I think it's yes
(I'm so sorry if it's wrong)
Hope this Helps!
What is the geosphere?
Answer:
the geosphere is the earth itself the rocks the minerals and landforms of the surface and interior.
Answer:
The geosphere is all Earth’s solid like soil . Geo a Greek word which means earth.
Explanation:
PLEASE PLEASE HELP ASAP!!!!! Plants, animals, yeast, and bacteria all share very similar cell-signaling processes. Which of the following does this suggest about the evolution of cell communication in organisms?
Answer:
mm A
Explanation:
Answer:
The answer is A
Explanation:
Fertilization is when a sperm and egg fuse together to make a zygote. Once formed, the zygote will undergo which type of cell division to eventually grow into a fetus?
mitosis
meiosis II
both meiosis I and II
meiosis I
Answer:
both meiosis I and II if i'm wrong remove my answer
Explanation:
The Himalayan rabbit's habitat has cold, snowy winters and mild summers. The body is
typically covered in white fur except for the nose, feet, tail, and ears, which are covered in
black fur
Himalayan Rabbit
A scientist shaved an area of white fur on the back of a Himalayan rabbit and placed an ice
pack over the shaved area. The shaved area grew black fur.
Which of these best explains why the hair that grew back where the ice pack was placed was
black and not white?
F The genes for black hair were activated by specific temperatures.
G The white hair mutated to black hair as the rabbit's body temperature decreased.
H The coat color changed from white to black with the age of the rabbit.
3 White hair only grows during certain times of the year.
Answer:
F. The genes for black hair were activated by specific temperatures
Explanation:
The white hair only grows in cold temperatures. Just because they put an ice pack on the rabbit does not mean that its cold.
Rabbits regulate their body temperature by using their ears. A fever or a dip in body temperature could be indicated by extremely chilly or hot ears. Thus, option F is correct.
What are the adaptation rabbits have in Himalayan?In general, rabbits thrive in cooler climates. In the fall, rabbits stop shedding their fur and develop a thick coat of fur that keeps them warm in the winter. Low temperatures of 32 degrees don't really bother them.
Strong back legs offer rabbits the speed they need to run away from predators. Their feet have fur on the bottoms for warmth and strong claws for traction.
The white hair only grows in cold temperatures. Just because they put an ice pack on the rabbit does not mean that it's cold.
Therefore, The genes for black hair were activated by specific temperatures
Learn more about rabbits here:
https://brainly.com/question/15961569
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What do you know about bacteria?
(Multiple choice question)
They are microscopic cells
They are like viruses
They are infectious particles
Answer:
They are microscopic cells
Explanation:
Answer: B
Explanation: they are like viruses . Because virus has bacteria
3. What is the original source of energy for all fossil fuels?
hydrocarbons
photosynthesis
the Sun
cosmic radioactivity
Answer:
the sun
Explanation:
All the energy in oil, gas, and coal originally came from the sun, captured through photosynthesis. In the same way that we burn wood to release energy that trees capture from the sun, we burn fossil fuels to release the energy that ancient plants captured from the sun.
hope this helps
Which of these does organic farming use?
A.
effective pesticides
B.
genetically modified seeds
C.
hormones
D.
fertilizers
E.
green manure
Which is the simplified form of x-12?
A.x12
B.– x12
C.1
12
D.1
+12
The simplified form of [tex]X^{-12}[/tex] would be [tex]\frac{1}{X^{12}}[/tex]
Law of IndicesAccording to one of the laws of indices:
[tex]X^{-1}[/tex] is the same thing as [tex]\frac{1}{X}[/tex]
Following this rule, [tex]X^{-12}[/tex] with thus be [tex]\frac{1}{X^{12}}[/tex]
More on laws of indices can be found here: https://brainly.com/question/15339224
True or false - DNA and RNA store heredity to make proteins?
in my own opinion I think it's false ..,
what are two changes that make our daily lives to have a positive impact on the environment?
what dose the nucleus control
Answer:
the nucleus controls and regulates the activities of the cell (growth and metabolism) and carries the genes, structures that contain the hereditary information.
Answer:The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus. The gel-like matrix in which the nuclear components are suspended is the nucleoplasm.
In your own words, describe what terrace farming is and explain how terrace farming benefited the Ancient Chinese.
Answer:
Terrace farming is a method of farming whereby “steps” known as terraces are built onto the slopes of hills and mountains. When it rains, instead of rain carrying away the soil nutrients and plants down the slope, they flow to the next terrace
Explanation:
hope this helped :)
Engineers are designing a bridge that will better withstand earthquake forces. What is the process called when engineers use a computer to see what happens to their design during an earthquake?
earthquakes from occurring but we can significantly mitigate their effects by identifying hazards, building safer structures, and providing education on earthquake safety. By preparing for natural earthquakes we can also reduce the risk from human induced earthquakes
4 How many genetically different kinds of gametes an individual with genotype Aabb can
produce?
a)1
b)2
c) 4
d) 8
Answer:
I believe the answer is C.) 4
Many shark species have experienced a great deal of decline in population sizes due to a variety of factors. In the Bahamas, sharks are plentiful, but still experience a decline as populations reach their carrying capacity. Which of the following factors does not affect the carrying capacity of all shark species?
Answer:
You didnt list the factors? comment the factors and ill come back to answer
How does the idea of atoms
explain the principle of conservation of
matter?
Answer:
Both the initial and final substances are composed of atoms because all matter is composed of atoms.
A mother is heterozygous for Type B blood and a father has type O blood, what is the probability of being a carrier of Type O blood?
A. 50%
B. 100%
C. 0%
D. 25%
E. 75%
Answer: 50%
Explanation:
(I Tried Putting My Explanation Its Not Working Bc Its Inappropriate)
But If The Mothers Blood Type Is 0 and the fathers blood type is A then it would be 50% Genotype for the child
Hope This Helps :) please mark brainliest
The proper function of the stomates on the leaf (and therefore, the function of water and CO2 movement) is influenced most by which element
Answer:
Sunlight.
Explanation:
Sunlight is responsible for proper functioning of stomata present on the leaves because the stomata only opens when there is sunlight and when the stomata opens, carbondioxide gas is absorbed by the leaves from the air while the water is taken from the roots which combines together to form glucose and oxygen. Glucose is stored in different parts of the plant while some oxygen is used by the plants in the process of respiration while the remaining oxygen is released in the atmosphere through stomata.
Great amount of electromagnetic energy from sun and other bodies in space travel through space. Which is a logical conclusion about electromagnetic waves
Energy must be very low
Frequency must be very low
Their wavelength must be very short
these wave can travel without the medium
Answer:
last option- these waves can travel without the medium
Given reason the base of a building is made wider
Answer:
here
Explanation:
to make it stable and not fall :)
When pressure is applied to a fluid in a closed container,
the passive transport of water molecules across a membrane is called .....
Answer:osmosis
Explanation:
Answer:
Water, carbon dioxide, and oxygen.
Explanation:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
As CO2 concentration increases in this graph, how is average global temperature affected?
Answer:
increases as well
Explanation:
carbon dioxide and other greenhouse gases contribute to the effects of global warming
DNA is duplicated during a process called
Answer:
DNA replication
Explanation:
ill give you a brainliest if it is right
Answer:
half
Explanation:
please mark as brainllest !!!!!!!!!!
囧 ↖(^ω^)↗ (○’ω’○) ::>_<::
Which describes laptops, cell phones, and video game systems that people use every day? obsolete technologies current technologies emerging technologies coexisting technologies