meiosis :cell division that produces reproductive cells in sexually reproducing organisms
mitosis:cell division in which nucleus divides into nuclei containing the same number of chromosomes
meiosis nucleus divides twice and produces 4 daughter cells which are not genetically the same
mitosis necleus divides ones and produces two daughter cells which are genetically the same
different _______ working together to perform a particular job are called __________
Answer:
Different tissue working together to perform a particular job are called organs.
Explanation:
HELP ASAP ILL GIVE U BRAINLY AND POINTS! Need help with 19!
Answer:
9.56, if u need the calculations let me know
Explanation:
What is mutualism? Pls help
Answer:
the doctrine that mutual dependence is necessary to social well-being.
Explanation:
which of the following is the first principle of cell theory?
help match the words
1.urbanization
2.
deforestation
3.
burning Fossil Fuels
4.
mining
a.
removal and destruction of trees results in massive species extinctions and disrupts the balance of gases in Earth's atmosphere
b.
releases greenhouse gases that disrupt Earth's natural cycles and climate patterns causing rapid changes to habitats and weather that organisms cannot adapt to
c.
reduces populations and causes extinctions by forcing out native species and replacing their habitat with human civilizations, non-native, and invasive species
d.
poisons and destroys habitats by releasing toxic metals into the environment and destroying surface features
What happens during the process of translation?
Image result for world
a
copies of DNA molecules are made
b
the cell uses information from messenger RNA to produce proteins
c
mRNA is made from DNA
d
transfer RNA is made from mRNA
Answer:
c..... mRNA is made from DNA
How does the mixture of dominant and recessive traits produce certain traits?
Answer:
DD Dd dd
Explanation:
so the answers above are the simplest traits a dominant + recessive trait can produce
Mary received a flu vaccine. Why didn't the vaccine make her sick?
Mary didn't get sick from the flu vaccine because it contains the smaller portion of the flu which isn't strong enough to infect you. Moreover, your white blood cells attack the portion of the flu while the memory cells take note of the flu, so when it comes next time, it won't affect your body because it knows how to fight the virus.
Hope this helps!
PLEASE HELP 40 POINTS!!!
Use the dichotomous key to correctly identify each dog in the picture above.
1
a. Long hair dogs
go to #2
b. Short hair dogs
go to #4
2
a. more than one color
go to #3
b. only one color
2b._______________
3
3. a. short nose
go to #5
b. Long nose
3b_______________
4
a. tall dogs
go to #6
b. short dogs
go to #8
5
a. white color chest
5a___________________
b. grey spotted chest
5b___________________
6
6. a. short nose
6a___________________
b. long nose
go to #7
7
a. black and white spots
7a___________________
b. grey body no spots
7b___________________
8
a. short nose
go to #9
b. long nose
go to #10
9
a. upright ears
9a___________________
b. floppy ears
9b__________________
10
a. more that on color
go to #11
b. only one color
10b___________________
11
a. stubby legs body close to the ground
11a___________________
b. longer legs body off the ground
11b_________________
Answer:
1 a 2a3b4a5a only this I can answer
How can humans mitigate the effects of human development on biodiversity?
Through proper education, and by demanding that governments make decisions to preserve biodiversity, the human population will be able to sustain life on earth longer.
wich of the following ingredients produce a heterogeneous mixture when mixed together ?
a.oil and water
b.sugar and water
c.salt and vinegar
d.molten copper and zinc
Answer:
the answer is A
oil and water
The growth patterns of plants such as ivy and pole beans are regulated by
A.) phototropism
B.)thigmotropism
C.)all of the above
Answer:
The correct answer is - C) all of the above.
Explanation:
The growth patterns of the plants such as ivy and pole beans depend and controlled by various physiological processes. These physiological process helps in the plants to grow in a particular direction so they can get nutrition and resources they require for their growth and development.
These processes are Gravitropism, phototropism, and thigmotropism. Gravitropism ensures that plant roots grow towards the soil so they can get water and other nutrients. Phototropism is the other process that allows the plant to move in the direction of the light so they can get enough light for the photosynthesis process. Thigmotropism is the process or defense mechanism that and movement by touch stimulus.
Why doesn't the United States have rich ore deposits?
Answer:
Because the U.S. is rich in ECE deposits, these enthusiasts say, exploiting them is ... Both are certain that America's chief prospects for producing ... At the very top of the mine, a crusher reduced chunks of ore to pea-sized gravel. ... “It doesn't surprise me that we're the only ones looking at it right now.
Explanation:
How many alleles are typically present in a genotype?
Answer:A genotype is the combination of two alleles, one received from each parent. The expression of a genotype is called the phenotype and the specific combination of the two alleles (the genotype) influences the physical expression (the phenotype) of the physical trait that the alleles carry information for.
Explanation: so 2
An experiment was done by Gierer and Schramm where they exposed plant tissue to purified RNA from tobacco mosaic virus, and the plants developed the same types of lesions as if they had been exposed to the virus itself. After checking relevant websites, what would you suggest would their results be if the RNA is treated with DNase, RNase, or protease prior to its exposure to the plant tissue
Answer:
See the answer below
Explanation:
A DNase is also known as deoxyribonuclease and it is an enzyme that catalyzes the degradation of deoxyribonucleic acid by cleaving the phosphodiester linkage in their structures. Thus, if the RNA is treated with a DNase before the plants are exposed to it, it will not make any difference. The plants will develop the same types of lesions as if they have been exposed to the mosaic virus.
Unlike DNase, RNase is a ribonuclease, an enzyme that is capable of carrying out catalytic degradation of ribonucleic acids. This means that if the RNA is treated with RNase before the plants are made to be exposed to it, they will not develop the lesions because the RNA would have been degraded by the enzyme.
A protease is an enzyme that degrades the structure of proteins. Treating a RNA with protease will thus have no effect on the structure of the RNA. Exposing the plants to the protease-treated RNA will make no difference. The plants will still come down with the lesions as if they have been exposed to the virus.
Algal bloom is caused what 2 factors in the dead zone?
0 points
A) Fertilizer
B) Nitrogen
C) Nutrient
D) Rapid growth
E) Phosphorus
F) Animal waste
pls help i need this because of a quiz
tbm queria saber essa pergunta!!
Answer:
Dead zones are generally caused by significant nutrient pollution, and are primarily a problem for bays, lakes and coastal waters since they receive excess nutrients from upstream sources. Excess nitrogen and phosphorus cause an overgrowth of algae in a short period of time, also called algae blooms.
hope it helps!
please mark as the brainliest!
Which if the following is not a property of minerals
A) naturally occurring
B) solid
C) organic
D) predictable (definite) chemical composition
Answer:
Between (A) and (C)
Explanation:
what are the function of Golgi body
Answer:
the golgi body packages proteins and other vesicles and send them around the cell
Answer:
celss
Explanation:
What type of muscles cannot be controlled consciously
Write in the Functions of Each Organelle
Describe the function of each organelle.
Cytoplasm
shows all of the mterial present in a cell except nucleus it provides platform for various cellular activites such as glycolysis
Chloroplasts
are membrane bound cell organelles found in photosynthetic organism
Cell wall
is a rigid outermoprotecging layer present in bacteria fungi plants and in some protist
Centrioles
are small cell organelles found near nuclues of animal cells
Answer:
mans need to help me cheat more often XDDDDDDDDDDD
Explanation:
how to read a scientific paper? and use a publication to demonstrate the different steps? pleas help me
Answer:
Attempting to read a scientific article for the first time may seem overwhelming and confusing. This guide details how to read a scientific article step-by-step. First, you should not approach a scientific article like a textbook— reading from beginning to end of the chapter or book without pause for reflection or criticism. Reading and understanding research papers is a skill that every single doctor and scientist has had to learn during graduate school. You can learn it too, but like any skill it takes patience and practice. Reading a scientific paper is a completely different process from reading an article about science in a blog or newspaper.
Explanation: i hope im right
✌hope u have a great day
Part 1: Include your answers to questions 1-4 and any Important facts about the cause and types of water erosion
Part 2: Include your answers to questions 1-7 and any Important facts about the effects of water erosion through your research.
Part 3: Include a visual display and any sources used when conducting your research.
Use the space below to submit your research.
Answer:
w
Explanation:
What are some of the facts about sexual reproduction? A . Takes two mates to reproduce and take a longer time to reproduce B. Takes one mate to reproduce and take a shorter amount of time to reproduce C. Take two mates to reproduce and take a shorter amount of time to reproduce D. Takes one mate to reproduce and takes a loner amount of time to reproduce.
17. When a person looks up into the sky
during new moon, what fraction of the
bright surface of the moon do we see?
Answer:
i dont really know why and how im here but im here
Explanation:
Place the following categories from broadest to most specific
Kingdom, Order, Genus, Domain, Species, Class, Family, Phylum
Plz help me.!!!!!!!!!!!!!!!!
Moving a spring toy up and down will create what kind of wave?
A.electromagnetic
B.transverse
C.surface
D.longitudinal
B transverse trust me I did it on a quiz yesterday
Lamar lives along the eastern coast of the United States, where the Gulf Stream influences the temperature. If the Gulf Stream cooled, what would happen to that climate?
Answer:
The temperature would change, thus changing the overall climate–it would cool down.
!!!!!!WILL MARK BRAINLIEST !!!!
2. Below is an image of 2 imaginary organisms. Organism A lived hundreds of years ago while organism B is
alive today. Explain how organism A evolved into organism B, including what environmental pressure (i.e.
predator, habitat, competition, etc) you believe guidede natural selection process that worked on this
species.
0-Organism
A
Organism-B
Answer: Click or tap here to enter text.
Answer:
The new modification in Organism B is the tail.
Explanation:
This might indicate that the organism has to sprint in order to catch prey or to get away from predators. The organism is most likely not a prey, since it has sharp teeth, making it a carnivore. The tail helps in stabilizing the animal while running. The animal might have new threats that have developed over the years (like humans).
You have purified the receptor for a hormone by affinity chromatography. During gel filtration chromatography under native conditions the receptor elutes between pyruvate decarboxylase (250 kDa) and glutamine synthetase (620 kDa). During SDS-PAGE, in the absence of reducing agents, the receptor migrates as a single band of approximately 230 kDa. When SDS-PAGE is carried out in the presence of 2-mercaptoethanol the receptor migrates as two bands of approximately 95 and 135 kDa. Explain this result.
Answer:
the hormone receptor is a heterotetramer composed of two subunits with 95 kDa and two subunits with 135 kDa
Explanation:
In this case, the heterotetramer is composed of two heterodimers, each composed of two subunits that held together by disulfide bonds. These heterodimers bind together through hydrophobic interactions in order to form a tetramer. The Sodium Dodecyl Sulfate (SDS) is a denaturing detergent that dissociates both heterodimers by interfering with hydrophobic interactions that hold heterodimers together. It is for that reason that only a single band of 230 kDa is observed (135 kDa + 95 kDa = 230 kDa). Moreover, 2-Mercaptoethanol breaks disulfide bonds, thereby separating the two subunits in the heterodimer. In consequence, after the use of this chemical compound (2-Mercaptoethanol), two different bands with 135 kDa and 95 kDa can be observed.
