Answer:
xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support. Xylem tissue consists of a variety of specialized, water-conducting cells known as treachery elements. The vascular system is comprised of two main types of tissue: the xylem and the phloem. The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves. The phloem carries food downward from the leaves to the roots.
Explanation:
Why are feathers "easy to repair"?
Answer: The feathers are easy to repair as the cells of birds help in replacement of damaged and old feathers.
Explanation:
The follicles of the feathers have regenerating cells that help in regrowing the feathers when the feathers are damaged and require to be replaced. The regrowth of feathers is a natural process that happens in all birds. The feathers are replaced by one or two molt seasons per year. In these seasons they shed their feathers and new feathers reappear. The newly growing feathers are stiff, and hard similar to nails.
What are some of the challenges one encounters in marketing orchard products?
Explanation:
One of the challenges may occur is achieving cleanliness, neatness, and order because orchard may be dirty at some point give its assosciation with actual dirt and moist.
Mitosis occurs in certain types of eukaryotic cells called:
A. Gametes
B. Somatic cells
C. Sex cells
D. Egg and sperm cell
Answer: somatic cells
Explanation: the other three don’t cause mitosis, instead cause meiosis
Check all that apply as characteristics of myelinated axons. Check All That Apply Myelinated axons transmit nerve impulses via continuous conduction.Myelinated axons transmit nerve impulses via continuous conduction. Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons.Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons. Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter.Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter. Myelinated axons are more energy efficient than unmyelinated axons.Myelinated axons are more energy efficient than unmyelinated axons. Myelinated axons would be unaffected by diseases that attack the CNS.
Answer:
Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter.
Myelinated axons are more energy efficient than unmyelinated axons.
Explanation:
Neurons are cells that specialize in transmitting messages to each other using a type of electrical signal. These signals carry information from outside your body to the brain, while others are the instructions for the various organs, glands and muscles to carry out functions.
Neurons receive these signals from other neighboring neurons through their dendrites. The signal then travels to the soma of the neuron, which is the main body of the cell, and finally travels down the axon to the synapse (space between the end of a neuron and another cell). The axon is a neuronal extension through which the electrical signal travels, extending from the soma to other neurons.
There may be layers of myelin, which consist of a layer of fat, covering the axons and where they have the function of acting as insulators to help keep the electrical signal inside the cell, which makes it move faster increasing the speed of transmission of the nerve impulse.
1) Myelinated axons transmit nerve impulses via continuous conduction. FALSE. In the axon, nodes of Ranvier are found at regular intervals along the length of the axon in the myelin sheath that surrounds it. These are small spaces that expose the axon membrane to the extracellular fluid and serve to allow the nerve impulse to travel faster, in a jumping manner and with less chance of error.
2) Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons. FALSE. In an unmyelinated axon, the movement of voltage across the membrane is due to ion flux that is limited by the time it takes for sodium ions to diffuse into the axon. Myelinated axons conduct faster because they are shorter than unmyelinated axons. In the latter, transmission is continuous but slower.
3) Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter. TRUE. The action potential conduction jumps from node to node, thereby they need fewer voltage-gated channels. Unmyelinated axons need voltage-gated channels in along the entire axon.
4) Myelinated axons are more energy efficient than unmyelinated axons. TRUE. The rate at which sodium input through one node can depolarize the axon at the next node is related to the current and capacitance across the membrane. Myelinated axons have faster action potential conduction because it jumps from node to node, thereby they use less energy because they don't have to travel the entire length.
5) Myelinated axons would be unaffected by diseases that attack the CNS. FALSE. For example, Multiple sclerosis (MS) is a demyelinating disease of the CNS in which the immune system attacks the myelin sheath or the cells.
The correct statements are:
Myelinated axons transmit nerve impulses via continuous conduction.Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter.Myelinated axons are more energy efficient than unmyelinated axons.Myelinated axons are nerve fibers that are protected by a covering called myelin. In both the central nervous system (CNS) and peripheral nervous system (PNS), oligodendrocytes and specialized cells known as Schwann cells work together to generate the myelin sheath. This sheath is composed of several layers of lipids, which are fatty substances that wrap around the axon in segments, leaving small spaces known as nodes of Ranvier.
Therefore, the correct options are A, C and D.
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Your question is incomplete, most probably the complete question is:
Check all that apply as characteristics of myelinated axons. Check All That Apply
Myelinated axons transmit nerve impulses via continuous conduction.Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons.Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter.Myelinated axons are more energy efficient than unmyelinated axons.Myelinated axons would be unaffected by diseases that attack the CNS.The Law of Conservation of energy states what?
a. energy can always be created and destroyed
b. energy can be created but not destroyed
c. energy can never be created but can be destroyed
d. energy can never be created or destroyed
Answer:
D hope it helps for your quiz and goodluck
Explanation:
d-energy can neither be created nor destroyed but it can be chanfed from one form to another.
How “Competition in an ecosystem” is playing a role in life?
What characteristics make dna a polymer ?
Outline the levels of organization starting with the smallest, organisms.
Answer:
Organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere. These have been arranged from the smallest to the largest. The biosphere is the largest level of organization while the organelle is the smallest. However, the basic form of life begins with the cell. Many cells together form a tissue and several tissue form an organ.
A sound wave that occurs at a quick rate and has a high frequency would produce
A
a loud sound.
B
a low-pitched sound.
C
a high-pitched sound.
D
a soft sound.
Answer:
C. a high-pitched sound
Explanation:
Name two cord-mediated reflexes
Answer:
patellar, Achilles,
Explanation:
learned it in class
An object in motion tends to stay in motion and an object at rest tends to
stay at rest unless an outside force act on it is called
Kinetic energy
Potential energy
Newton's First Law
Acceleration
Answer:
Newton's first law
Explanation:
The focus of Lesson 1 is Newton's first law of motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Club foot is one of the most common congenital skeletal abnormalities, with a world-wide incidence of about 1 in 1000 births. Both genetic and nongenetic factors are thought to be responsible for club foot. C.A. Gurnett et al. identified a family in which club foot was inherited as an autosomal dominant trait with reduced penetrance. They discovered a mutation in the PITXI gene that caused club foot in this family. Through DNA testing, they determined that 11 people in the family carried the PITXI mutation, but only 8 of these people had club foot. What is the penetrance of the PITXI mutation in this family
Answer:
0.727
Explanation:
Penetrance can be defined as a measure of the association between a genotype and phenotype. In medical genetics, the penetrance of a mutation leading to the disease state is the proportion of individuals carrying the mutation and showing disease symptoms associated with such mutation. For example, if a mutation leading to the disease state has a 90% of penetrance, it is expected that 9 of each 10 individuals carrying the mutation will develop the disease, while the remaining 10% will not develop the disease. In this case, 8 of each 11 individuals carrying the PITXI mutation show symptoms compatible with the disease, and therefore the penetrance is 8/11 = 0.727 (73%).
Write the correct type of mutation that occurred in creating the mRNA strand for each of the following
examples. Original DNA: ATCCGCTTACG
a. UUGGCGAAUCG: __________________
b. UATGGCGAAUCG: _________________
c. UGGCGAAUCG:__________________
Answer:
a. the second nucleotide is wrong. It is a U but should be an A. No other nucleotides were effected by this, only the one was effected. This is a Point (Substitution) Mutation.
b. the third nucleotide is wrong. It is a T that was inserted. As you can see, the rest of the nucleotides are right, but since the T was added, it will mess up how the rest of the sequence is read. It will be read UAT GGC GAA... instead of UAG GCG AAU... see how it messed it up? This is an Insertion (Addition) Mutation.
c. the second nucleotide was deleted. This is called a Deletion Mutation. It will mess up the rest of the sequence, similar to how the example above did.
I hope that helped you understand!
Why do you think that it is important for health care workers to have corona virus vaccine?
Yes, I think it is essential for health care workers to receive the coronavirus vaccine. Health care workers, such as doctors and nurses, help patients with and without the virus. I believe that all health care workers should be vaccinated for their own health and their patients' health.
Deoxygenated blood fills this receiving room.
the dissolution of copper sulphate is
when CuSO4dissolved in water, no chemical reaction takes place since no new substance is getting formed.Thus it is a physical change. The dissolution of Zinc granules in dil. HCl is a chemical change because zinc reacts with hydrochloric acid to form zinc chloride and hydrogen gas is liberated. The reaction is : →Zn+2HCl→ZnCl 2+H2 ( all numericals comes down of the no I cant write it down)
1.Evolution is as much a fact as the fact that planets go around the Sun
2.Evolution is primarily concerned with the origin of humans
3.According to evolution, people came from monkeys a long time ago
4.Evolution is something that happened only in the past, it is not happening now
5.Evolution is something that happens to individual organisms
6.Evolution was developed as an idea to destroy or undermine religion
7.In order to accept evolution as a real process, you cannot believe in God
8.Evolution is only a theory
9.Biological, medical, and agricultural research increasingly assume that evolution occurs
10.Evolution involves individuals changing in order to adapt to their environment
each are either true or false
Answer:
1. true
2. false
3. true
4. false
5. false it happens to a species
6. false
7. false? not shure on this one
8. false
9. true
10. true
Answer:
I'd love to hear you explain this to a Muslim or Islam. Why pick on Christians and not Hindus or Buddhists? You are saying they are wrong by claiming evolution is real. Also, maybe give some evidence next time you blindly state information.
The first generation of hybrid offspring is called the ______ and can often be used to determine the ____ gene.
a. F2 generation; h.o.m.o.z.y.g.o.u.s.
b. F1 generation; h.o.m.o.z.y.g.o.u.s.
c. P generation; dominant
d. F1 generation; dominant
(Brainly needs to realize if they let us talk about college biology, that we are going to use words that have h.o.m.o. and that they are genuinely correct scientific terms.
The preferred generation of hybrid offspring is called the P generation and can often be used to determine the dominant gene.
What is P generation and dominant?
Dominant directs to the relationship between two versions of a gene. Then, Individuals receive two versions of each gene, which are called alleles, from each parent. When the alleles of a gene are different, So, one allele will be expressed This is a dominant gene.
When The P generation is the start of Mendel's work on inheritance, or receiving genetic qualities by transmission from parent to offspring. So, Basically that it refers to traits or genes that are passed from a parental generation to its offspring
When P is the parent gene, and also then the offspring goes to the F1 and also then F2, the dominant gene is what gene wins over a recessive. So the correct option is 'C'.
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What controls traits and inheritance?
gametes
nucleic acids
proteins
temperature
Answer:Your answer could be B. Nucleic Acids.
Explanation: Correct on Edge 2021
REUSE
How can I reuse things at school?
In guinea pigs, the allele for black fur (B) is dominant over the allele for brown (b) fur. A black guinea pig is crossed with a brown guinea pig, producing five F1 black guinea pigs and six F1 brown guinea pigs. a. How many copies of the black allele (B) will be present in each cell of an F1 black guinea pig at the following stages: G1, G2, metaphase of mitosis, metaphase I of meiosis, metaphase II of meiosis, and after the second cytokinesis following meiosis
Answer:
G1: One copy of the B allele per cellG2: Two copies of the B allele per cellmetaphase of mitosis: Two copies of the B allele per cellmetaphase I of meiosis: Two copies of the B allele per cellmetaphase II of meiosis: One copy of the B allele per cellsecond cytokinesis following meiosis: One copy of the B allele in only two of the four daughter cells.Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Which type of friction acts on an object that is not moving?
Answer:
its static friction i got it right on edge
Explanation:
The bonds that link many water molecules together to form a water drop are:
ionic
nuclear
covalent
hydrogen
Answer:
covalent
Explanation:
covalent bonds occur when two atoms-in this case oxygen and hydrogen share electrons with each other
How are cellular respiration and photosynthesis similar?
A, Both processes break down glucose.
B. Both processes create food for organisms.
C. Both processes produce waste.
D. Both processes take place in chloroplasts.
Answer:
C. Both processes produce waste.
:)
14
Hemophilia is a recessive X-linked disorder. The term "carrier" can be used when explaining someone's genotype
for hemophilia. Which of the following is the correct term for carrier?
Answer:
petr moto seti pert hello met rein
Explanation:
perteyhsj
What are products of cellular respiration?
Answer:
glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.
Explanation:
Answer:glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.
Explanation:
As atmospheric CO2 increases, the amount of CO2 dissolved in seawater is expected to increase as well. This produces more carbonic acid, which then dissociates into hydrogen ions and something else.
Answer:
bicarbonate ions
Explanation: (HCO3-)
The top layer of the soil in the diagram is composed MAINLY of
A)
sand and clay.
B)
solid bedrock
C)
many types of minerals.
D)
decaying organic material.
Answer:
?
(there is no diagram)
What is the energy molecule that is being used during photosynthesis?
A. H2O
B. NADPH
C. Mitochondria
D. ATP
What is the correct answer I accidentally clicked echo
Answer:
sound waves. they come in longitudinal waves and vibrations. echo is wrong though youre right on that one
