Answer:
Chromatin is responsible for gene expression.
Explanation:
Chromatin is responsible for gene expression because chromatin contains DNA that has all information about genes. chromatin controls the gene in order to form encoded products. DNA in chromatin send information to the RNA to produce specific types of proteins that are needed by the organisms for its growth and development so in that way the genes can be expressed in the organism.
please help! Out of the 100 cells shown, how many are in the process of dividing?
Answer:
I think 7 cells are going to divide
Answer:
13?
explanation
where a mutation would take place in an organism
Answer:
The genome is composed of one to several long molecules of DNA, and mutation can occur potentially anywhere on these molecules at any time. The most serious changes take place in the functional units of DNA, the genes. A mutated form of a gene is called a mutant allele.
Explanation:
Answer:
DNA
Explanation:
Mutations occur in the nucleotide sequence of DNA
(GIVING BRAINLIEST!!)
Which reservoir is found underground in the cracks and spaces in the soil, sand, and rock?
A) Glaciers
B) Ground water
C) Polar ice caps
D) Rivers
Explain Why
Answer:
ground water
Explanation:
Ionic bonds are formed between _____ and involved the ____ of ions
Answer:
An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms.
:
What is the main function of meiosis?
A.
to produce gametes for sexual reproduction
B.
to produce more body cells within an organism
C.
to produce a clone of an organism in asexual reproduction
D.
to produce more embryonic cells following fertilization
Answer:
B
Explanation:
PLEASE HELP I WILL MARK BRAINALIST
Answer:
i think it is A
Explanation:
Answer:
it is for sure A
Explanation:
The diagram below illustrates changes over time in a population of foxes in the
wild.
What process is illustrated in the diagram?
extinction
overproduction
natural selection
artificial selection
If an organism converts energy in the environment into food, what is the ecological role
of the organism?
Answer:
I'm guessing that's a decomposer.
Explanation:
Decomposers like mushrooms use dead animals, plants, and nutrients in their environment to make their own food.
If you are studying a gene within DNA and find out that guanine makes up 41% of it, how much is Adenine?
During which phases of the cell cycle are chromosomes composed of two chromatids?
Answer:
The correct phases are S phase, prophase, anaphase.
Explanation:
The cell cycle, the sequence of events spanning the period from the completion of one cell division to the end of the next division, involves both the division of the cell nucleus (karyokinesis) and the division of the cytoplasm (cytokinesis). S phase, the next section of the interface, is marked by a dramatic increase in DNA synthesis and the synthesis of histones which are major cellular proteins bound to DNA. The cell is preparing for the start of mitosis. Chromosomes duplicate lengthwise, and each chromosome consists of two identical "chromatids."During prophase, the degree of packing of the chromatin increases, so the chromosomes become shorter and thicker and the centromeres begin to become visible. Each of the chromosomes, due to its duplication in S phase, is made up of two identical chromatids, called sister chromatids. Anaphase is the short phase, the sister chromatids begin to separate and migrate to the poles. Once the two chromatids separate, each is called a chromosome.
When a virus or bacterium is used to transfer a piece of foreign dna to host cell it’s known as a
A. Vector
B.transgenic
C.clone
D. Hybrid
(03.03 MC)
How would the Coriolis effect alter movement of an air mass flowing from a higher to a lower latitude in the Northern Hemisphere?
Select one:
a. It would deflect the path of the air mass to the east. Incorrect
b. It would deflect the path of the air mass to the west.
c. It would deflect the path of the air mass to a lower altitude.
d. It would deflect the path of the air mass to a higher altitude.
(03.02 LC)
Which of the following would provide the best assessment of the fertility of a soil?
Select one:
a. O horizon
b. A horizon
c. B horizon Incorrect
d. C horizon
The diagram below represents a convection cell. The arrows indicate the direction of air flow:
Diagram showing Hadley Cell located north of the equator. The air in the Hadley Cell flows counterclockwise. Label A is located below the equator. Label B is located at the equator. Label D is located above the equator and parallel to the top of the Hadley Cell. Label C is located between B and D. Label E is located above Label D.
The letters represent particular latitudes. At which latitude would you expect to find the driest average conditions?
Select one:
a. A Incorrect
b. B
c. C
d. D
A La Niña can be described as
Select one:
a. warmer than usual waters in the Atlantic waters
b. cooler than usual waters in the tropical Pacific
c. warm waters traveling eastward toward South America
d. cool waters causing colder than normal temperatures in the Southeast Incorrect
Answer:
D
Explanation:
I think so
1. Coriolis effect would deflect the path of the air mass to the west.
2. A horizon would provide the best assessment of the fertility of a soil.
3. Label E is located above Label D.
4. A La Niña can be described as cooler than usual waters in the tropical Pacific
The correct options for 1, 2, 3 and 4 are B, B, D and B respectively.
The Coriolis effect is the deflection of moving air (or an object) due to the Earth's rotation. The air moving in the northern hemisphere is deflected to the right of its intended path due to the Coriolis effect. As a result, in the Northern Hemisphere, air masses traveling from high to low latitudes will be deflected west.
The A horizon, commonly known as the topsoil, contains the most organic matter and nutrients, making it the most fertile layer of soil. This is the layer in which organic components such as degraded plant matter and humus interact with mineral particles to provide an optimal environment for plant growth.
The location at latitude D, which lies above the equator and parallel to the top of the Hadley cell, is where you might expect to find the driest average conditions in the Hadley cell circulation pattern mentioned in the question (north of the equator). Due to the compression, the air in the Hadley cell becomes warm and dry as it descends, resulting in arid or desert-like conditions.
La Niña is a climate phenomenon that causes cooling of sea surface temperatures in the central and eastern tropical Pacific Ocean. It represents the inversion phase of the El Niño–Southern Oscillation (ENSO) cycle.
Therefore, the correct options for 1, 2, 3 and 4 are B, B, D and B respectively.
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Your question is incomplete, most probably the complete question is:
1. How would the Coriolis effect alter movement of an air mass flowing from a higher to a lower latitude in the Northern Hemisphere?
Select one:
a. It would deflect the path of the air mass to the east. Incorrect
b. It would deflect the path of the air mass to the west.
c. It would deflect the path of the air mass to a lower altitude.
d. It would deflect the path of the air mass to a higher altitude.
(03.02 LC)
2. Which of the following would provide the best assessment of the fertility of a soil?
Select one:
a. O horizon
b. A horizon
c. B horizon Incorrect
d. C horizon
.3. The diagram below represents a convection cell. The arrows indicate the direction of air flow:
Diagram showing Hadley Cell located north of the equator. The air in the Hadley Cell flows counterclockwise. Label A is located below the equator. Label B is located at the equator. Label D is located above the equator and parallel to the top of the Hadley Cell. Label C is located between B and D. Label E is located above Label D.
The letters represent particular latitudes. At which latitude would you expect to find the driest average conditions?
Select one:
a. A Incorrect
b. B
c. C
d. D
4. A La Niña can be described as
Select one:
a. warmer than usual waters in the Atlantic waters
b. cooler than usual waters in the tropical Pacific
c. warm waters traveling eastward toward South America
d. cool waters causing colder than normal temperatures in the Southeast Incorrect
The purpose of isolation techniques is to:
Answer:
Isolation practices are designed to minimize the transmission of infection in the hospital, using current understanding of the way infections can transmit. Isolation should be done in a user friendly, well-accepted, inexpensive way that interferes as little as possible with patient care, minimizes patient discomfort, and avoids unnecessary use.
Explanation:
In the experimental set up above there are bubbles being
produced. What gas would be inside the bubbles?
Answer:
carbon dioxide
Explanation:
A list of living things in your home
Awarding 50 points and brainliest answer
Label the microscope!
A
B
C
D
E
F
G
A- stage clip
B- coarse focus
C- objective lens
D- stage
E- Condenser + Diaphragm
F- condenser focus
G- Light source/Mirror
Imagine you accidently step on a sharp object with
your bare foot.
Explain how the parts of the peripheral nervous
system work with the central nervous system to
produce a response to the stimulus
Answer: receptors in the skin stimulate sensory neurons
Sensory neurons send messages to the central nervous system
Interneurons send messages to the motor neurons in response to messages received from sensory neurons
Motor neurons cause muscles in the leg to contract and pull the foot away
Explanation:
To produce a response to the stimulus, receptors (sense organs, muscles, glands, etc.) receive stimuli from the environment and from inside your body.
How peripheral nervous system works with the CNS?To produce a response to the stimulus the central nervous system processes information, it is the information that is received from the peripheral nervous system.
After that, the central nervous system sends this processed information to the peripheral nervous system. The peripheral nervous system sends a signal to the body part that needs to respond so you can react appropriately to the stimulus.
Therefore, if you accidentally step on a sharp object with your bare foot the peripheral nervous system work with the central nervous system to produce a response to the stimulus through receptors.
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Isaac is studying relationships between organisms in the phylum Chordata, which includes humans and all other animals with a backbone. Beginning with domain as 1 and then counting down the levels in the modern system of classification, what level is "phylum”?
2
3
4
5
Answer: Phylum is at level 2.
All living organisms are classified, and the reasons for this are so that they can be examined better, to know and discover their relations, their evolutionary paths etc. while in the past there have been some more simplified classifications, the modern one is complex and well established, based on the characteristics of the organisms(living and died out).
Explanation: Kingdom: Animalia(an animal)
Phylum: Chordata (vertebrate)
Class: Mammalia(mammal)
Order: Carnivora(carnivore)
Suborder: Feliformia (also Feloidea) (cat-like)
Family: Felidae(true cat)
Subfamily: pantherine(big cat branch)
Pls give the first person brainiest I'm just doing this for a challenge
Genus:panthera(big cat)
Species:P.uncia(snow leopard)
Answer:
2
Explanation:
choose the correct statement about the earth crust A. the earth crust is thin and could be compared to an eggshell B. most of the earth crust is only 6 km deep C. the earth crust is around 200 km deep D. the earth crust is the thickest layer
''A. the earth's crust is thin and could be compared to an eggshell'' is the correct answer.
Why earth's crust is considered an egg shell?The egg is considered a tiny model of the Earth. The thin shell of the egg represents the Earth's crust which is divided into plates. Both earth and egg have a thin and brittle shells. The crust of the earth is broken into various pieces like the cracked shell of a boiled egg. The mantle of the earth is like the egg white part whereas the core of the earth is present in the center like the egg yolk. The earth's crust is broken into pieces that geologists called it plates. The inside of the planet earth is layered like an egg. Scientists considered the surface of the Earth to be cracked like a big eggshell. They call these pieces tectonic plates that cover the Earth. The plates float slowly on the surface and sometimes crash with each other, and move away from each other.
So we can conclude that option A is the right answer about the earth's crust.
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explain the process of dialysis.. and who invented/ discovered this process?
all you need is in the photo
ASAP
Answer:
It is translation
Explanation:
The translation is the process of protein synthesis where the information on RNA is expressed in the form of polypeptide chains.
Answer: transcription
Explanation:
The processes of diffusion and active transport are both used to * break down molecules to release energy move molecules into or out of cells of the body bring molecules into cells when they are more concentrated outside of the cell move molecules against a concentration gradient, using ATP molecules
Answer:
move molecules into or out of cells of the body
Explanation:
Majorly, there are two types of transport used by living cells. These are; passive and active transport. Passive transport involves the movement of molecules down a concentration gradient without the need for energy (ATP) input. Example is DIFFUSION AND OSMOSIS.
On the other hand, active transport is a type of transport that moves molecules against a concentration gradient (low to high) with the aid of energy input (ATP). Example is sodium-pottasium proton pump.
Although there are obvious differences between these two processes (diffusion and active transport), but they both MOVE MOLECULES INTO OR OUT OF CELLS OF THE BODY.
Nerve cells release neurotransmitters across gaps and secretion of proteins and wastes:
Facilitated Diffusion
Endocytosis
Diffusion
Exocytosis
What is a convergent boundary? Name one example of a convergent boundary.
Answer:
The Washington-Oregon coastline of the United States is an example of this type of convergent plate boundary.
The process of planting trees to reestablish forests that have been cut down is called __________.
A)
reforestation
B)
siliviculture
C)
sustainable foresting
D)
zoning
E)
second-growth foresting
Answer:
A) reforestation
Explanation:
HOPE IT HELPS YOU
2. Explain how similar and different sexual reproduction in plants and animals is?
Answer:Both plants and animals reproduce sexually, producing a male and female gamete, which fuse to form a zygote. However, plants are also able to reproduce asexually, unlike most animals. ... In sexual reproduction in animals, the two gametes are the spermatozoa and the oocyte, which when fused become the ovum.
Explanation:
3. After learning about chemical reactions, Olivia investigated different
kinds of chemical changes using substances she found in her kitchen
so she could see these changes. Which of the following can occur when
a chemical reaction takes place? Choose the three statements that
apply.
Answer:
ABC
Explanation:
Lets say baking soda and vinegar when they react there is a chemical reaction where bonds break and from changing it into a new compound no longer just baking soda and vinegar.
If the DNA is: TAC CGA CCG ACC TTA. Create a mRNA strand with a point mutation that would “not affect” the protein.
Answer:
AUG GCU GGG AGG AAU
Explanation:
A point mutation that would not affect the protein is one that has the same mRNA codon. The answer choices indicate that the third part is affected. The normal mRNA would be GGC, which if you look at the table, is gly. The other sequences that match are GGU, GGC, GGA, and GGG. The only answer choice that matches is the third one, with GGG.
Which of these is a mechanical wave?
Olight
O sound
O gamma ray
O electromagnetic
Answer:
sound
Explanation:
Embryology
Define:
Use it in a sentence:
Answer:
Scientists can use embryology to determine that many organisms have common ancestors.
Explanation: