what are the cons of fetal stem cells
Answer:
The research is unethical(fetal stem cells) since the blastocyst, an unimplanted human embryo at the sixth to eighth day of development, is destroyed during the stem cell extraction process.
Answer:
Embryonic Stem Cell Disadvantages
1. Difficult to differentiate uniformly and homogeneously into a target tissue. 2. Immunogenic—ES cells from a random embryo donor are likely to be rejected. after transplantation.
Explanation:
The main disadvantage with embryonic stem cells is the way that they are acquired. Since human embryos are destroyed during the process of harvesting embryonic cells, this makes the research unpopular with those that believe human life begins at conception and that this life is being destroyed.
The consumption of carbohydrates is most likely to:.
Answer:
Thanks for posting your question on Brainly!
Explanation:
The answer:
Trigger the release of serotonin which reduces tension and anxiety.
define breathing pls.
Hope it helps ~
which of the following is a biotic factor within an ecosystem
a- the climate in the area
b- the herbivores that feed on producers
c- the amount of oxygen in the air
d- the amount of sunlight
Structures that are anatomically similar because they were inherited from a common ancestor are called ____________ structures.
Answer:
Homologous structures
Explanation:
Physical features may be considered homologous or analogous, but what does this mean? Homologous structures are similar physical features in organisms that share a common ancestor, but the features serve completely different functions. An example of homologous structures are the limbs of humans, cats, whales, and bats
13. Which of the following statements about complete metamorphosis is TRUE?
The physical form of the young animal is completely different than the physical form of the adult.
The adult form of the animal is similar to the young animal.
O All organisms that undergo complete metamorphosis are a caterpillar at some time.
Only arthropods undergo complete metamorphosis.
Answer:
The first one true.
Explanation:
Metamorphosis usually starts with the baby being completely different from the adult. Take a frog for instance. Righttttt
the second couldn't be because then that wouldn't metamorphosis...just growth..
not all organisms that metamorphise are caterpillars ..as i said..look at the frog:)
The space in the chest between the lungs is called the Group of answer choices diaphragm. mediastinum. alveolus. sinus cavity. pleural cavity.
Answer: The space in the chest between the lungs is called mediastinum.
William has Brown eyes. Is it likely that both of his parents have blue eyes?
Answer:
Brown eye genes are more dominant than blue or green eye gene. He most likely got the brown eye gene from his mother. People don't necessarily have blue eyes just because their parents do. Both parents are probably heterozygous for blue eyes.
Explanation:
Answer:
No
Explanation:
Blue eyes are a recessive trait while Brown eyes are a dominant trait. Two recessive traits = the recessive trait. One dominant trait + one recessive trait = the dominant trait.
Hope this helps <3333
~Silver
The spherical object within a cell which controls its activity is called the _____. vacuole cytoplasm epidermis nucleus
Answer:
Your answer is nucleus.
Explanation:
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. Hope this helped :)
Answer: nucleus
Explanation: nucleus is the round object within a cell that controls its activity
Why does the white blood cell perform
endocytosis to move the bacteria or virus
to the centre of its cell.
how animals and plant transport system is different from each other?
Answer:
Hello! My name is kaori and today ill be helping you to finding the correct answer you need Let's begin.
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♡ Animals
• Speciliased tubes-arteries
• Speciliased tubes-arteriescapillaries in the veins
• all tubes are composed of living cells
• the concentration of substances transported is controlled
• the heart controlls the circulatory system. the heart is controlled by the nervous system.
• the rate of flow is moderate and is regulated by vasoconstriction and vasodilation
• the subtances being transported are respiratory gases, amino acids, glucose, vitamins, fatty acids etc
☆ Plants
• Spealised tubes -xylem vessels and trachids and phloem seive tubes
• Spealised tubes -xylem vessels and trachids and phloem seive tubes• some tubes are composed of living cells
example: phloem otherbare composed of dead cells
• the concentration of the substances being transported is NOT controlled.
• there is NO such control in plants
• the rate of flow in xylem and phloem is quite slow
• substances being transported are: amino acids, sucrose, fatty acids, etc.
HOPE THIS HELPED YOU.
Which of these statements about Earth’s magnetic poles is NOT correct?
The magnetic poles move around.
Earth’s magnetic field lines curve in toward Earth at the magnetic poles.
The magnetic poles are located at the geographic north and south poles.
Auroras form near the magnetic poles
I AM BETTING 70 POINTS SO RIGHT ANSWERS ONLY
Its Option 1 : The earth magnetic field is primarily a dipole that is ithas two poles. This brings the North and south magnetic pole.
Answer:
The magnetic poles are located at the geographic north and south poles IS THE INCORRECT ANSWER
Binomial nomenclature includes 2 parts, what are the 2 parts that make up a scientific name?.
Answer:
ldont knowmy colleagues please
Why is a single base insertion or deletion likely to drastically change how the rest of the genetic code is read?
The genetic code is of utmost importance as a slight change in it can change the characteristics of an organism. Just like that base insertion or deletion can cause shifting of frame and can result in a change of the nucleotide sequence causing mutation.
What are the types of mutation?Mutation is any change in the genetic sequence that can lead to changes in the genome.
It can be of the following types:
Germline mutation: In gametes, germline mutations occur. Other cells in the body experience somatic mutations.Chromosomal alterations: these are mutations that change the structure of the chromosome.Point mutations: it affects only one nucleotide.Frameshift mutations: these are nucleotide additions or deletions that cause a shift in the reading frame.Thus, base insertion or deletion likely to drastically change how the rest of the genetic code is read as it result in frameshift mutation.
For more details regarding mutation, visit:
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Which of these best describes the practice of management?
cataloguing and following a health plan
providing and documenting a healthy diet
building and maintaining a clean habitat
treating and preventing illnesses and pests
Explanation:
building and maintaining a clean habitat treating and preventing illness and pests
What are the steps to compDNA replication
Which lymph trunks receive lymph from the upper limbs?.
Answer:
Lumbar trunks (receives lymph from lower limbs)
Intestinal trunk (receives chyle from digestive organs)
Bronchomediastinal trunks (collects lymph from thoracic viscera)
Subclavian trunks (receive lymph from upper limbs and thoracic wall)
Jugular trunks (drain lymph from head and neck)
Explanation:
PLEASE HELP ME 50 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!
Some scientists have suggested that the Protista kingdom should be split into several groups instead of remaining as one group. Which of the following provides the best argument for dividing up the Protista?
Answer:
Apart from being unicellular and eukaryotes, the Protista have very little in common.
Explanation:
Answer:
The answer is NOT Colonial Protista have much more in common with other multicellular organisms than they do with unicellular Protista
Just took test
BRAINYEST QUESTION
Because the woman was known as a philanthropist, the charity group approached her for a donation.
What does the word philanthropist mean in this sentence?
A)someone who owns a business
B)someone who has inherited money
C)someone who makes a lot of money
D)someone who donates to charitable causes
Answer:
the answer is D now give me brainlest
Explanation:
The smallest unit that can carry out all activities associated with life
Answer:
Cell is the most basic unit of any organism, smallest unit of life that can function independently and perform all the necessary functions of life, including reproducing itself. All living organisms are made up of one or more cells. The cell is the smallest thing that is alive.
Explanation:
According to Charles Darwin's Theory of Evolution, natural selection involves the survival of the...
(a) weakest (b) most populous (c) youngest (d) Fittest
(Wassce, Year 1999, OBJ, No.59)
(D) Fittest
Because only species with certain adapting features could survive in a given environment.
Hello there! I am EnjoyingLife, and I hope you find my answer helpful!
Natural selection involves the survival of the fittest organisms
Why?
The weakest organisms will not surviveOrganisms should be adapted to their environment in order to survive.Thus, the answer is Option D [fittest}Hope it helps!
Have an amazing day!
Good luck!
[tex]\text{EnjoyingLifeWith...YOU :)}[/tex]
True or false? Enzymes are made of proteins.
Answer:
true, enzymes are made of long amino acid chains and can speed up reactions. they are also a catalyst.
Explanation:
4. In a species of roundworm, having a hard cuticle (H) is dominant to having a soft cuticle (h). In the lab, a
nematode with a hard cuticle mates with a soft-cuticle nematode. All of the offspring have hard cuticles. What
are the genotypes of the parents?
If 15% of a particular DNA strand are nucleotides containing cytosine, what percentage of the DNA molecule would contain thymine
Answer:
35%
Explanation:
To make a DNA helix, two DNA strands are required. They are connected by the nitrogenous bases on each strand. Each type of nitrogenous base is complementary to another type: cytosine (pyrimidine) pairs with guanine (purine) and thymine (pyrimidine) pairs with adenine (purine). This means they only bond with their pair.
For every cytosine, there must be a guanine bonded to it. So, if 15% of the strand is cytosine, another 15% must be guanine.
Since,
15% + 15% = 30% and 100% - 30% = 70% ,
30% of the DNA strand consists of the cytosine-guanine pair and 70% of the DNA strand consists of the adenine-thymine pair.
Since,
70% / 2 = 35% ,
70% is made up of equal parts adenine and thymine, 35% of the DNA strand must contain thymine.
Eukaryotic cells have DNA enclosed in a double membrane called the nucleus. The nucleus functions to
Separate the DNA from other activities that occur in the cytoplasm.
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When an object is in motion, it possesses what type of energy?
А
potential energy
B
kinetic energy
с
thermal energy
D
chemical energy
When an object is in motion, it possesses kinetic energy.
Option b is the only correct answer
What is kinetic energy?Kinetic energy is the energy a body has or possess due to its relative motion.
Some few examples of kinetic energy are as follows:
RunningWalkingCyclingCar movementAeroplane flyingLearn more about kinetic energy:
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2N is the formula for determining
Answer:
2N is the formula for determining diploid chromosome number
i will give brainliest if write in 5-10 min
Which of the following describes an area of land, generally state or nationally owned, that is often leased to different groups for its natural resources?
National park
Protected area
Extracted reserve
Conservation zones
Answer:
Extracted Reserve
Explanation:
Hope this helped nwn-
What are some ways this community could protect their watershed?
Don't dump anything in the river
O Limit pesticide and fertilizer to prevent runoff
O Protect natural vegetation along river
All of the above
Answer:
All of the above can prevent the watershed
Add another bar to the chart that would represent Han
chinese at low altitudes. Pay attention to the height of
the bar and provide a short explanation for your choice.
Assuming height of the bar represents altitude, the bar representing Han Chinese will be shorter compared to that representing Tibetans since Han Chinese live at lowlands.
What is the role of natural selection in evolution in Tibetanscompared to Han Chinese?Tibetans and Han Chinese are thought to originate fro. same ancestors.
However, while the Han Chinese lived in lowland areas, Tibetans split off drom the Han Chinese about 2750 years ago and went on to live in high altitudes.
Natural selection helped Tibetans to evolve to adapt to high altitudes with several mutations occurring in their genes which are mostly related to use of oxygen by the body.
Assuming height of the bar represents altitude, the bar representing Han Chinese will be shorter compared to that representing Tibetans.
Learn more about natural selection at; https://brainly.com/question/524043