Answer:
Plant cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out . ... So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.
Explanation:
Thats because Plant cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out . ... So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.
HELP
Youngest to oldest
Answer:
E B I F H A D G C
Explanation:
Guys helpppppp please and I hope y’all have a great day
Answer:
Ok so
Explanation:
1. DNA
2.A , G , C and T
3.The 3-dimensional double helix structure of DNA, correctly elucidated by James Watson and Francis Crick. Complementary bases are held together as a pair by hydrogen bonds.
4.Chargaff's realization that A = T and C = G, combined with some crucially important X-ray crystallography work by English researchers Rosalind Franklin and Maurice Wilkins, contributed to Watson and Crick's derivation of the three-dimensional, double-helical model for the structure of DNA.
5.Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things.
6. 1869
7.The double helix of DNA is, like its name implies, in the shape of a helix which is essentially a three dimensional spiral. The double comes from the fact that the helix is made of two long strands of DNA that are intertwined—sort of like a twisted ladder.
8. In DNA, the code letters are A, T, G, and C, which stand for the chemicals adenine, thymine, guanine, and cytosine, respectively. In base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine.
9. A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. ... Every person has two copies of each gene, one inherited from each parent.
10. 20
11. A group of disorders that cause red blood cells to become misshapen and break down.
With sickle cell disease, an inherited group of disorders, red blood cells contort into a sickle shape. The cells die early, leaving a shortage of healthy red blood cells (sickle cell anaemia) and can block blood flow causing pain (sickle cell crisis).
12. Sickle cell anemia is caused by a mutation in the gene that tells your body to make the iron-rich compound that makes blood red and enables red blood cells to carry oxygen from your lungs throughout your body (hemoglobin).
13. The Human Genome Project was an international scientific research project with the goal of determining the base pairs that make up human DNA, and of identifying and mapping all of the genes of the human genome from both a physical and a functional standpoint.
I'm so absolutely sorry if this is long. Good lucj with ur work ;D
If more snakes moved into this environment, then
A. the number of rabbits would go up.
B.the number of grasshoppers would go up.
C. the number of toads would go up.
D. The number of hawks would go up.
NO LINKS AND DO NOT ASK A QUESTION UNDER MY QUESTION ❗❗❗
Answer:
B. The number of grasshopers would go up.
Explanation:
A. is incorrect because it would decrease
C is incorrect because it would also decrease
D is incorrect because snakes dont eat Hawks, but Hawks eat them
B is correct because since snakes would eat the toads, there would be no toads eating grasshoppers
Hope this helps!!!
Your student is trying to create a "Gene X" knockout mouse by introducing a recombinant construct into embryonic stem (ES) cells, selecting transformants, and introducing the transformed cells into mouse blastocysts. He designed his construct as follows: NeoR region of homology to Gene X---HSV tk--- region of homology to Gene X where Neo is the neomycin-resistance gene and HSV tk is the Herpes Simplex virus thymidine kinase gene. He transforms the ES cells and exposes them to G418 and ganciclovir. Explain to your student why he failed to recover transformed ES cells. Choose the two correct statements. a. His construct incorporated into the mouse DNA by illegitimate recombination. These cells would be sensitive to ganciclovir and neomycin, and would die.
b. His construct incorporated into the mouse DNA by illegitimate recombination. These cells would be resistant to ganciclovir, but sensitive to neomycin, and would die.
c. His construct incorporated into the mouse DNA by homologous recombination. These cells would be sensitive to ganciclovir, but resistant to neomycin, and would die.
d. His construct incorporated into the mouse DNA by homologous recombination. These cells would be sensitive to neomycin and ganciclovir, and would die.
e. His construct incorporated into the mouse DNA by homologous recombination. These cells would be sensitive to neomycin, but resistant to ganciclovir, and would die.
f. His construct incorporated into the mouse DNA by illegitimate recombination. These cells would be resistant to neomycin, but sensitive to ganciclovir, and would die.
Scientists use computer models to study complicated events and to
a. perform experiments
b. state theories
c. change theories and laws
d. make predictions
Answer:
The correct answer is - d. make predictions.
Explanation:
Computer models are scientific models that help in analyzing complex systems. Scientists use these to analyze data and on the basis of these data computer models are able to predict the outcome of the problem or can tell what will happen in the future.
These are very helpful in complex systems and are made on the basis of the data collected and are the basis of the models. Weather forecast can be predicted on the provided data.
The Burning of either wood or fossil fuels will add carbon dioxide to the atmosphere. How is the burning of fossil fuel different?
A. Unlike would fossil fuel require oxygen to burn
B. Unlike word fossil fuel do not require oxygen to burn
C. Unlike would fossil fuel burn without releasing energy
D. Unlike wood fossil fuels contain carbon that has been stored for millions of years
how should a detective work with forensic scientists in order to solve a crime?
1 First Steps: Observation and Data Collection. As a criminal investigator, you should begin by making observations. ...
2 Create Your Hypothesis. ...
3 Test the Hypothesis. ...
4 Interpret Results and Form Conclusion. ...
5 Crime Investigation Tips.
Male damselflies fight other male damselflies of their own species to win a mate. This shows that only the strongest can
O have enough to eat
O impact energy
O generate a defense
o pass on their traits
Answer:
Hello There!!
Explanation:
I believe the answer is=>O have enough to eat.
hope this helps,have a great day!!
~Pinky~
What example best compares to the relationship between genes and chromosomes? PLZ Somebody help
A. A gas tank in a car because it stores energy.
B. Skin on a human because it protects the body.
C. Leaves on a tree because they provide energy.
D. A recipe in a cookbook because it gives directions.
Answer:
b
Explanation:
Answer:
D
Explanation:
I think its d
Which of these is an example of the conversion of gravitational potential energy into kinetic energy?
Group of answer choices
a wind-up spring making a toy car move across the floor
a person running on a level track
an apple falling from a tree to the ground
a rubber band being stretched to twice its normal length
1. How do humans use energy resources?
2. Give an example of how energy transformations are involved in the
3. Identify two sources of renewable energy.
pls help
Answer:
Humans use electrical and thermal energy to cook. we also can use kinetic energy for hand held flashlights that transform it into electrical energy. solar is a common energy but there
is also kinetic water based and wind.
Approximately 55%of an adult female body weight is water if a woman body contains 38 kg of water what is the woman's total weight
Answer: 69kg
Explanation:
Let the total weight of the woman be represented by x. Based on the information given, we can derive an equation which will be:
55% of x = 38kg
55/100 × x = 38kg
0.55 × x = 38kg
0.55x = 38kg
Divide through by 0.55
x = 38kg/0.55
x = 69.09099
x = 69kg
Therefore, the woman's total weight is 69kg.
In the beginning man was born from creatures of a different kind; because other creatures are soon self-supporting, but man alone needs prolonged nursing.
a. True
b. False
Answer: True
Explanation:
The statement that "In the beginning, man was born from creatures of a different kind; because other creatures are soon self-supporting, but man alone needs prolonged nursing" is true.
The creatures that were different from man became self supporting soon. If the present form had been the original form of man, he won't have survived.
Calculate the number and percentage of eukaryotic species that are still to be formally described?
the number and percentage of eukaryotic species that are still to be formally described is to be beauty
Eukaryotic organisms are species that have defined nucleus and membrane limited organelles. Total 11% or 250,000 are described while 97% or 8490000 are yet to be described.
What is the population of the eukaryotes?Eukaryotes are the largest and the most dominating species that includes kingdom plants, animals, fungi and protists. A total of 8.74 million eukaryote species on Earth are present from which only 250,000 are described.
Eukaryotes are the species that are well-defined organisms that contain the genetic material enclosed within the nuclear membrane and the organelles are also enclosed.
With new discoveries and findings, many new species are described that are grouped into one of the kingdoms based on their properties and features.
Therefore, 8.74 million eukaryote species are present on Earth.
Learn more about eukaryotes here:
https://brainly.com/question/4944603
An experiment similar to the 1952 Hershey and Chase experiments was done in which radioisotope 35S was added to a bacteriophage replicating within its bacterial host. The new phage particles were carefully isolated and used to infect fresh bacterial cells and no radioisotopes were utilized. Based on this information, where would you expect to find the 35S radioisotope immediately after infection
Answer:
inside the phage ghosts outside the bacterial cells.
Explanation:
According to Hershey & Chase- Experiments, the radioisotope 35S is frequently associated with protein since sulfur is a protein component. The radioactive sulfur is absorbed into the protein coat because it already contained sulfur (35S). The radioactive marker 35S was integrated into the Bacteriophage protein coat and remained as phage ghosts outside the bacterial cells.
Which factors increase the heat absorbed by a land surface? Select the two correct answers. (1
becoming paler
becoming smoother
removing plants
removing snow
becoming wetter
The heat absorbed by the land and oceans is swapped with the atmosphere by the means of conduction, radiation, and latent heat. By removing plants, and removing snow increase the heat absorbed by a land surface, i.e., option C and D.
What are the means of heat transfer?Heat transfer is a mechanism of conveying energy and entropy from one location to another.
It can be done by either of the following:
Conduction.Convection.Radiation.Factors increase the heat absorbed by a land surface are by removing snow and by removing plants.
Thus, the correct options are C and D.
For more details regarding heat transfer, visit:
https://brainly.com/question/13433948
#SPJ2
Answer: The correct options would be C) removing plants and D) removing snow.
Hope this helps ^_^
Why do so many more people have brown eyes then blue eyes
What part of the ice cores tells us what the atmosphere was like in the past?
A.The water when the ice cores melt.
B. The ice crystals.
C. The rings of the ice core.
D.The air bubbles trapped in the ice cores.
Answer:
C
Explanation:
I took the test a few days ago. :)
Several human populations spread throughout the Sahara desert have multiple mutations in Gene R that confers heat tolerance. Independently, a small population of humans in the Mojave desert of California have a unique mutation in Gene Z that also confers heat tolerance. The evolution of adaptation of heat tolerance across all of these populations would be considered an example of _________
Answer:
Variation
Explanation:
Migration into a population from other populations with varying gene frequencies, evolution, or adaptation of heat tolerance is a cause of variation. The allele frequency of the resulting hybrid population would be right in the middle of its original value and the donor population's frequency. In tropical and subtropical ecosystems (Sahara deserts), high temperatures are a significant restriction to human population productivity; they induce morphological and physiological modifications at all times, resulting in significant yield losses but the ability and evolution of human species to cope in this region is as a result of variation.
b) What is DNA? What is a Gene?
Which of the following populations is most likely to be in Hardy-Weinberg equilibrium?
a. bacteria with mutating genomes
b. prairie dogs with established burrows
c. a few starfish in a tidal pool
A cooperative interaction between entities is called________
A) sustainable development
B) industrial ecology
materials management
D environmental justice
synergy
Answer:
A
Explanation:
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Which of the following statements about planetary satellites is true?
Answer:
C
Explanation:
why does secondary consumers cannot digest the bones of their prey
Answer:
The conclusion to be drawn from the fact that secondary consumers do not digest the bones of their prey is that energy used to create bone mass often does not travel farther up the food chain . Explanation: ... No energy is required to form bones .
Explanation:
Answer:hebivore
Explanation:
Help someone helppppp please omgggggg ahhhhh!!!!
What is a by-product of the photosynthetic light reaction?
Answer:
co2+water--> glucose + o2
constellation are believe to ne of great help in the lives of some people.
True or False
A trait is a distinct variable of
a character of an organism
that can be inherited. Which
of the following would be
considered a trait?
A. skin tone
B. eye color
C. green eyes
True or false Question #1 Aspen has just learned HPV. (the human papillomavirus),
which can cause genital warts and cancer is so common most seually-
active people get at least one type of HPV during their lives. Aspen is
cared about HPV and has discovered there is a vaccine for this virus.
Aspen can go to a healthcare provider to get the vaccine but has to go
back for a second dose later.
Answer:
True
Explanation: One version of the human papillomavirus, which leads to most cases of cervical cancer, evolved in humans as a result of sex with Neanderthal, a new study shows
Please help this is a 7th grade science problem multiple choice
Answer:
Hello There!!
Explanation:
The answer is d.Nucleus.
hope this helps,have a great day!!
~Pinky~
Answer:
The correct answer is 'd'.
Explanation:
DNA is located in nucleus.