Answer:
A
Explanation:
2. Neutrons have a positive charge.
A. true
B. false
Answer:
False
Explanation:
Nuetrons have a neutral charge. They aren't positive like protons. They aren't negative like electrons.
Explain and describe complex inheritance.
Answer:
Complex Inheritance: (inherited) traits that have a genetic component that does not follow strict Mendelian inheritance. May involve the interaction of two or more genes or gene-environment interactions. ( HGPIA)
Explanation:
I NEED HELP ASAP! (Picture is attacted) You Dha Real One IF YOU DO!
What is the difference between poison and medicine? How can we use science to figure out the difference.
Will mark u brainliest.
Answer:
not sure how to go about this question so if I'm wrong please tell me
Explanation:
The difference between poison and medicine is that poison is used to harm to one's health whether its an animal or human while medicine is used to cure an illness or an injury. We can use science to figure out the difference by testing the substance on an animal or stem cells of a human scientists do this various times to be assured of its outcome.
Based on the phylogenetic tree, which of the following statements is true.
see the following image.
a. Species A was probably much larger than any of the other organisms
b. Species G is extinct
c. Species C is the most recent ancestor of species B and D
d. Species F and G are more closely related than Species B and E
Answer:
a
Explanation:
Answer:
CORRECT (SELECTED)
Species F and G are more closely related than species B and E.
Explanation:
Species F and G share a more recent common ancestor than species B and
Give an example of a hypothesis not mentioned.
1. Law is something that has been proven through experimentation. theory is a hypothesis that is supported by laws (facts.)
2. An Observation is info that you log through your senses. A hypothesis is what you predict will happen based on your Observations.
3. Examples not given.
Which of the following is not a character of life?
Group of answer choices
pass on genetic material
blood flow
breath
Growth
maintain homeostasis
metabolize
use energy
Development
think
Made up of Cells
respond
reproduce
evolve
Answer:
blood flow and breathe i think
Explanation:
they wouldnt apply to plants, they are living just like animals
what is the relationship between heart rate & respiratory rate (impact on oxygen, carbon dioxide & energy levels)
from which population do you believe they may have originated
Answer:
The Eukaryotic Bacterial population
Explanation:
All life springs from this one magnificent cell, if there is a picture/diagram please meake sure to show it
if someone can answer it without saying idk by november 2nd 2020 will be marked the brainliest! how does the nervous system work with the digestive system to make jump roping possible??please answer asap
Refer to the illustration below. The photosynthetic algae are:
Please anybody!
Answer:
Producers
Explanation:
Photosynthetic organisms are producers.
is a group of cells that have the same function.
Answer:
Tissue
Explanation:
Answer:
tissue
Explanation:
List the three structures a plant cell has that an animal cell does not have.
Answer:
Plants have: Chloroplasts, cell walls and Plastids
Explanation:
Chloroplasts and Plastids help perform photosynthesis and the cell wall is stronger a outer wall that contains also a membrane where as animal cells go they only have Cell membranes
Erwin Chargaff is considered one of the pioneering scientists in the field of molecular biology. In one of his studies, Chargaff observed that a sample of human DNA contained approximately 30% adenine (A). Based on DNA structure, what are the expected percentages of the other nitrogenous bases in the sample?
A.
10% thymine, 40% cytosine
B.
20% thymine, 30% cytosine
C.
30% thymine, 20% cytosine
D.
40% thymine, 10% cytosine#
Answer:
30% thymine, 20% cytosine
Explanation:
In a typical DNA double helix pyrimidine; Cytosine and thymine always pair with Purine ;Adenine and Guanine. This pairing ensure that the double helix of DNA is maintained by the presence of Hydrogen between these organic bases.
For correct pairing all adenine must pair with thymine,and all Cytosine with guanine.Therefore for this to occur if 30 % of adenine is present,the composition and number of thymine(30%) must be available.If this percentage is not available the pairing will not occur.
Like wise 20% Cytosine must be present because ,then same amount of Guanine molecule 20% in the DNA molecule. must be present Thus Guanine percentage is 20%.
This give a total of 100(60+40)
This based on the Erwin Chargaff stoichiometric ratio of 1:1 .This states that the percentage of adenine =thymine,and that of Guanine=Cytosine,in the DNA of living cells should be equal. Thus; [A]+[G]=[C]+[T]=1:1
A fish is swimming around the 720-meter perimeter of her pond. If she swims 10 laps in 120 minutes, what is her average speed in m/min?
Answer:
The average speed of the fish is:
60 m/minExplanation:
You must take into account that the fish swims 10 laps, so you must multiply the perimeter by 10 to obtain the total meters swam:
720 m * 10 = 7200 meters.Now, you just must divide the total meters swam by the number of minutes that the fish took to do this, so:
7200 m / 120 min = 60 m/minRemember, ever you do an exercise like this, you must check the units, I mean, the units that the exercise wants to be the same you use, in this case, the average speed of the fish is 60 m/min.
100 POINTS!!!!!!!!!!! ( I NEED FAST ANSWERS ) Why do we use uranium for nuclear energy?
Answer:
Uranium is the fuel most widely used by nuclear plants for nuclear fission. ... Nuclear power plants use a certain kind of uranium, referred to as U-235, for fuel because its atoms are easily split apart. Although uranium is about 100 times more common than silver, U-235 is relatively rare.
Explanation:
i looked it up
Answer:
In a nuclear reactor the uranium fuel is assembled in such a way that a controlled fission chain reaction can be achieved. The heat created by splitting the U-235 atoms is then used to make steam which spins a turbine to drive a generator, producing electricity.
Explanation:
I pretty much covered it in the answer!
Pls Brainliest! It would mean a lot! ;)
How
many steps are
there in cellular respiration?
Answer:
32
Explanation:
32
3. How does ATP provide energy to your body?
Answer:
ATP(or Adenosine Triphosphate) provides energy to your body because it is a chemical that takes energy from the food you eat and turns it into energy your body can absorb. So because of this, it is considered a source of energy.
Someone please help me
Answer:
Option B: Molecule 2
Explanation:
'Equilibrium of a molecule inside and outside a cell' means that there are similar numbers of that molecule on the inside and the outside. (hence 'equilibrium')
The number of each molecule is as follows:
Molecule 1 - Inside: 3, Outside: 5
Molecule 2 - Inside: 2, Outside: 3
Molecule 3 - Inside: 1, Outside: 5
Molecule 4 - Inside: 7, Outside: 4
Therefore the correct option is option b. 2
This is because the number of molecules inside the cell and outside the cell are the closest together, most similar out of all the molecules.
Hope this helped!
what are the roles of plate tectonics in the continental shelf?
Answer:
t
Explanation:
Answer:
A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water known as a shelf sea. Much of these shelves has been exposed during glacial periods and interglacial periods. The shelf surrounding an island is known as an insular shelf.
Explanation:
What principle can be applied to all chemical reactions?
A) conservation of mass
B) reactants formed from products
C) energy loss theory
D) coefficient principle
compare the characteristic features of animals and plants
When two molecules are put in the same container they do not attract each other. Why does this happen?
a.they are both polar
b. they both contain oxygen
c. one is polar one is nonpolar
d. they contain different elements
Answer:
The correct answer is C.
C. One is polar one is nonpolar
Explanation:
An electromagnet is
O
A)a permanent magnet
B)made with bar magnets
C)attracts all metal substances
D)only operating when the current is on
Answer:
I think it's C
Explanation: I hoped this helped
__________ is weather averaged over a long period of time.
Question 2 options:
A. temperature
B. air pressure
C. climate
D. humidity
Answer:
no
Explanation:
no
The weather that is averaged over a long period of time is the climate that is present in Option C because climate is a prolonged period of weather that is taken into consideration, and the regions are specified for the climatic condition.
What is the climate?Weather is affected by various factors, such as temperature, humidity, etc., and that is not permanent for years, but it is temporary because when there is a rainy day, the weather condition of that place is more cold, while in a place where there is a high temperature, the weather becomes dry for that region. Climate is a weather condition that lasts for long periods of time, such as 20 or 30 years, and depending upon the climate, different ecosystems are considered.
Hence, the weather that is averaged over a long period of time is the climate that is present in Option C because climate is a prolonged period of weather that is taken into consideration, and the regions are specified for the climatic condition.
Learn more about the climate here.
https://brainly.com/question/10440860
#SPJ6
Describe the resulting cells of meiosis
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell.
Explanation:
Hope ths helps u
Crown me as brainliest:).
somebody gonna be the brainiest hehe
Answer:
cells
tissues
organs
organ systems
organisms
Which statement describes an advantage of models?
O Models can be used to communicate and test designs ideas.
Models always show the exact size of a system.
Models have the ability to develop into complex systems.
Models are useful for developing scientific methods.
the cells of most prokaryotic cells have a what?
Answer:
hello Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.
What are bulging of eyeballs?
Answer:
bulging nose
Explanation: