Answer:
D. nucleus
Explanation:
this is were transcription happens
Answer:
Nucleus
Explanation:
I learned in my dna lesson in biology
Which characteristic of life deals with the most basic unit of living organisms?
a. Growth
C. development
b. Homeostasis
d. reproduction
Answer:
well i belive its growth hope that helps
Someone pls helppppp
WHY DOES WATER HAVE A HIGH SPECIFIC HEAT? WHAT IS THE SPECIFIC HEAT OF WATER?
Answer:
Depends on the temperature of it's surroundings.
Explanation:
Answer:
There are two reasons. One of them is that the water molecule is “bent”. It is rotationally asymmetric, meaning that it can “store” more energy in the rotational degrees of freedom than other, symmetric molecules (like diatomic molecules, or CO 2 for example).
The other and more important reason are the hydrogen bonds. When a hydrogen atoms binds with a more electronegative atom (such as oxygen in the case of water), its electron has a higher probability to be found in the vicinity of the oxygen atom, leaving the hydrogen nucleus partly “exposed”. This partial charge on the hydrogen will create a very weak bond with the partly negatively charged oxygen atom of a neighbouring water molecule (remember, the hydrogens’ electrons prefer to be around the oxygen atom instead, making it a bit negatively charged). This electrostatic interaction, or bond, between neighbouring water molecules is the famous hydrogen bond.
Even though each hydrogen bond by itself is weak compared to the bonds in the molecules themselves, there are many neighbours around each water molecule, which means that water can store a significant amount of energy in these bonds. As you add heat to water, instead of speeding up the molecules (increasing their kinetic energy and thus temperature) the hydrogen bonds get broken up, soaking in the additional heat without much change in temperature.
Explanation:
What do a bacterium and a whale have in common?
Answer:
The correct answer is - characteristics of life.
Explanation:
All the living organisms present on earth share some basic characteristics known as characteristics of life and basic traits. Everything with life has these traits from the smallest bacterium to the largest whale, share certain characteristics of life. Without these characteristics, there is no life.
These characteristic are -
1. Reproduce their selves - very living thing increase their number
2. Grow and develop - growth and development is common in every organism.
3. Homeostasis - ability to maintain the body at equilibrium
4. Consist of cell - organisms are made up of one or more cells.
5. Complex chemistry - every organism have complex chemistry in their body system.
6. Response to the environment - each and every organism respond according to the chage.
is immunity a function of proteins
Answer:
Yes
Explanation:
Of the many functions of protein in your body, one of its most critical is supporting your immune system. The immune response protects you against harmful microorganisms, including viruses and bacteria, as well as foreign substances that might attack your defenses, such as a thorn or flames from a fire.
Which element within the respiratory system is responsible for removing foreign matter from the lungs
Answer:
Cilia
Explanation:
The element which is responsible for this is the Cilia. The form found in a human's respiratory system are known as Motile Cilia and basically act as brooms on the respiratory epithelium lining the respiratory tract. Huge waves of Motile Cilia communicate with one another in order to be able to effectively clean up all dirt and mucus from the lungs in a very organized and unified manner. This helps maintain our respiratory system running as effectively as possible.
What helps substances cross the cell membrane during facilitated diffusion?
Choose 1 answer:
Cholesterol
B
Carbohydrates
Proteins
D
Water
Proteins help substances cross the cell membrane during facilitated diffusion. Thus option C is correct.
What are proteins?Proteins are defined as large biomolecules and macromolecules and are made up of one or more extended chains of amino acid residues.
Protein play the important role in development of human body.
Proteins assist our body with cell regeneration and repair.
There are basically eight types of proteins.
Hormonal proteinEnzymatic proteinStructural proteinDefensive proteinStorage proteinTransport proteinReceptor proteinContractile proteinThus, proteins help substances cross the cell membrane during facilitated diffusion. Thus option C is correct.
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which renewable energy resource is directly impacted by air quality?
Answer:
Wind power
Explanation:
could have an almost immediate impact on air quality by halting the production of these particles.
Color blindness, a sex linked trait, apears more often in __________ than in ____________.
a) males, females
b) females, males
c) Neither
Answer:
I think I am not so sure about it but I think it is B if not I think A
The organic compounds in living things are organized into groups: carbohydrates, lipids, proteins, and nucleic acids.
Which two macromolecules play a central role in Transcription and Translation?
lipids and nucleic acids
proteins and carbohydrates
carbohydrates and lipids
nucleic acids and proteins
nucleic acids and proteins
carbohydrates and lipids
Vitamin B and folic acid deficiencies are characterized by production of abnormally large erythrocytes called
Answer:
Megaloblasts
Explanation:
Megaloblasts are nucleated red cells that are formed as a result of these three factors.
1. Deficiency in diet of vitamin b12 or folic acid
2. Bad absorption of vitamin b12 or folic acid
3. When there is increase in the demand for vitamin b12 or folic acid.
Megaloblasts are large erythroblasts that comes up in the blood especially in a case of pernicious anaemia.
If a woman has brown eyes with the recessive allele for blue eyes (Bb), each of her sex cells will have
OA.
the allele for blue eyes, b.
ОВ.
the allele for brown eyes, B.
OC.
one allele or the other, B or b.
OD.
the same allele she does, Bb.
Answer:
c
Explanation:
Answer:
b. They would have the allele for brown eyes
Explanation:
the capital B means that it is the dominant letter.
A zebra embryo is in the early stages of development. The cells are beginning to look different from each other.
Which statement is the best description of what is happening to the zebra embryo?
Meiosis is breaking down old cells to form new ones.
Mitosis is making identical new cells from the original cells.
The cells are differentiating so that they have specialized functions
Cellular respiration is making many different types of cells.
Answer:
The cells are differentiating so that they have specialized functions
Explanation:
Answer:The cells are differentiating so that they have specialized functions
Which type of energy do muscle cells use to produce mechanical energy in the movement of an arm?
Answer:
usually in association with myosin, are responsible for many types of cell movements. Myosin is the prototype of a molecular motor—a protein that converts chemical energy in the form of ATP to mechanical energy, thus generating force and movement.
Explanation:
The type of energy muscle cells use to produce mechanical energy in the movement of an arm is known as chemical energy.
Which type of energy do muscle cells use?The type of energy that muscle cells use is known as chemical energy. Adenosine triphosphate (ATP) is the energy source for all muscle contractions. Energy is released when ATP is broken into ADP+Pi (adenosine diphosphate and phosphate group).
Maintaining the availability of ATP for muscle contraction is the limiting factor since ATP is not stored in large amounts in skeletal muscle. Muscle contraction converts chemical energy to mechanical energy when ATP is hydrolyzed during cross-bridge cycling.
This mechanical energy is then distributed and stored in the tissue as the muscle deforms or is used to perform external work.
Therefore, chemical energy is the type of energy muscle cells use to produce mechanical energy in the movement of an arm.
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10 examples of unwanted friction that can be lowered
Answer:
List three ways of reducing friction. 1.Polishing the rough surface. 2.Providing all bearings or wheels between the moving parts of a machine or vehicles reduce friction and 3.allow smooth movement as rolling friction is less than sliding friction.
HELP ASAP!! 2 MINUTES!! I'll give brainliest and points and thanks if you get it right just question 2, you can do question 3 for extras
Genetics is the branch of biology that involves the study of how different traits are transmitted from one generation to the next.
O True
O False
How can clothes impact someone’s performance?..i need three facts for an essay
Answer:
Clothes too tight can restrict someone's movement Clothes too baggy could possibly trip someone up, which could lead to broken bones/concussionsClothes could get in someone's way while they are trying to preform or do a certain task that could result in an injury.Answer:
Clothes can impact someone's performance by
Causing them to be cold or hot and experience symptoms.
Slow them down if they are exercising because of the material.
The clothes might get damaged causing the person to have to stop whatever they are doing to assess the situation.
Explanation:
I am a human. Therefore, I have wore clothes.
scientists who believe in solar nebular theory believe that the formation of the solar system began around
Answer:
4.7 Billion years ago!
Explanation:
pls help if you know wither one of these
Answer:
sex cell and germ cells
Explanation:
When previewing a literary text, to what features should you pay attention?
a.
titles
c.
illustrations
b.
beginnings and endings
d.
all of the above
Please select the best answer from the choices provided
A
B
C
D
Answer:
A. Titles
Explanation:
Answer:
d
Explanation:
i took the test
The human heart is
A) Neurogenic heart B) Myogenic heart
C) Pulsating heart D) Ampullary heart
c
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\'Explanation:
Answer:
c
Explanation:
An offshore oil platform houses a drill for drilling oil. The drill descends from the platform and enters the ocean. At the bottom of the ocean, the
drill starts to dig into the rock. It continues drilling into the rock for another 7,000 feet and then stops. Where does the drill stop?
in the biosphere
in the geosphere
in the atmosphere
in the hydrosphere
Answer:
in the geosphere
Explanation:
The drill will eventually stop within the geosphere.
The biosphere is the region of the earth populated by living organisms. The geosphere is the region of the earth made up of solid rock The atmosphere is the gaseous part of the earth. The hydrosphere is the liquid part of the earth or where water dominates the earth.The drill pierces through the geosphere as it initially passes through the hydrosphere. Eventually, the drill stops within the geosphere.
Answer:
geo
Explanation:
got it right
TRUE OR FALSE:
Selective breeding cannot be used to produce pest-resistant crops.
Answer:
false
Explanation:
What is the difference between an autotroph and a heterotroph?
Answer:
Autotroph produces its own food (Plants)
What does the environment mean?
Answer:
the surroundings or conditions in which a person, animal, or plant lives or operates
In _________ area cells, the checkpoint proteins are often abnormal, allowing damaged DNA to be replicated and passed to daughter cells. This is how ________ area are copied from one cell to the next. If there is a mutation in a gene that normal controls growth, then the cell will not have normal _________ area of growth. A cell with defective checkpoint proteins can result in cancer, the _________ area growth of cells with mutated DNA.
Answer:
How cells use checkpoints at the end of G1 phase, end of G2 phase, and partway Normal cells, however, move through the cell cycle in a regulated way.
Explanation:
What does your brain stem control?
A) Heart rate and breathing
B) All functions of the body
C) Reflexes
Answer:
A) Heart rate and breathing
HELPPPP!!!! ASAPPPPP!!!
14.
Which of these correctly relates the photoreceptor to the region of the brain to which it connects?
Photoreceptor connects to visual region.
Photoreceptor connects to gustatory region.
Chemoreceptor connects to visual region.
Chemoreceptor connects to somatosensory region.
Which of these correctly relates the photoreceptor to the region of the brain to which it connects? Photoreceptor connects to visual region
What is photoreceptor ?Photoreceptors can be defined as cells for detecting light. They are composed of the outer nuclear layer that contains the cell nuclei the inner segment that houses the cell machinery and the outer segment that contains photo-sensitive pigment.
Therefore photoreceptors are the only cells that can convert incoming light into an electrical signal that can be carried to the brain via the optic nerve to create conscious vision.
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Phylogeny can be based on morphological homologies and molecular homologies. What are the advantages and limitations to using each
Answer:
1. Molecular data:
- Advantages:
a. less susceptible to evolutionary convergence
b. huge amount of potential characters available for data comparison (each nucleotide can potentially be used to assess the state of a character)
c. useful for assessing times of divergence
- Disadvantages:
a. multiple sequence alignments are hard to solve for sequences with high evolutionary rates
b. limitation to the number of states of the character
c. generally unuseful for comparing with data from extinct species
d. difficulties of inferring positional homology
2. Morphological data:
- Advantages:
a. useful to understand the evolutionary significance of traits in extinct ancestral species
b. there is not limitation to the number of different states of the character
- Disadvantages:
a. susceptible to evolutionary convergence
b. limited number of characters is available
Explanation:
Morphological and molecular data are the two primary sources of information used to infer homology. In the last years, molecular data gained ground for this purpose. However, it should be stressed that molecular data only have 4 different states (i.e., 4 different types of nucleotides), while for morphological data in principle there is not limitation to the number of different states. On the other hand, morphological traits are more susceptible to evolutionary convergence, thereby leading to spurious results when assessing the homology of problematic characters. Finally, it is important to highlight that morphological data are generally more useful to understand the origin and homology of traits in extinct species.