Answer:
all of the above
Explanation:
brainliest please
Adenine base pairs with thymine using _________ bonds, and guanine base pairs with cytosine using ________ bonds.
three hydrogen, two hydrogen
two hydrogen, three hydrogen
three phosphoester, two phosphoester
two phosphoester, three phosphoester
Answer: two hydrogen, three hydrogen
Explanation: im sure this is the answer 100% pls mark brainliest!
Answer: The correct answer is two hydrogen, three hydrogen
Explanation:
I took the test
What would be the main problem with reproduction if meiosis did not take place to form sex cells?
Answer:
Fertilization would result in a zygote with twice as many chromosomes as the parents.
Explanation:
Meiosis creates four haploid cells from a diploid parent cell. These haploid cells are the sex cells - sperm cells and egg cells.
Since these cells are haploid (containing 23 chromosomes, half the amount of chromosomes as the parent diploid cells), when they fuse during fertilization, they form a diploid zygote containing 46 chromosomes.
Answer:
B) Fertilization would result in a zygote with half as many chromosomes as the parents.
Explanation:
Which refers to the measure of the amount of water vapor in the air?
What causes a water molecule to be polar? (3 points)
What is produced when an atom loses an electron?
Answer:
It becomes a positively charged ion.
Explanation:
Answer:
it will lose negative charge and become positively charged
Pls help I need the answers ASAP
Balance the following equations. A few of the equations are balanced and will not need
anything done to them. If the equation is already balanced write the word balanced as
your answer.
Answer:
1) 6K + B2O3 ---> 3K2O + 2B
2) 4C + [tex]S_{8} \\[/tex] ---> [tex]4CS_{2}[/tex]
3) 2Na + O2 ---> [tex]Na_{2}O_{2}[/tex]
4) 2N2 + SO2 ---> [tex]2N_{2}O_{5}[/tex]
5) Balanced
6) 4Na + O2 ---> [tex]2Na_{2} O[/tex]
7) 16Al + [tex]3S_{8}[/tex] ---> [tex]8Al_{2}S_{3}[/tex]
8) Balanced
9) Balanced
Explanation:
Which best explains how to oxygen Atoms,
each with six valence electrons can bond with each other?
Explanation:
Two oxygen atoms bonds with each other via covalent bonding.
In the formation of covalent bonds, two atoms with little to no electronegativity difference combines by sharing of the valence electrons. This why homonuclear molecules can be formed.
Two atoms of the same kind having zero electronegativity difference forms this covalent bonds. There is equal sharing of electron pair between the atoms and there is no electrostatic charge on the molecule.For the oxygen atom with 6 valence electrons;
two electrons are shared by each atoms to make a complete octet and a stable molecule.
In science, a theory is different from how we use the term "theory" to apply to everyday ideas. The statement "It’s only a theory" might mean something very different than "theory" when used as a scientific term. What is the best way to explain the word, "theory" when used in science?
A. In science, there is no difference between a law and a theory.
B. In science, there are few principles that can be considered theories.
C. In science, a theory is well supported by observations and/or experimental data.
D. In science, a theory is a completely accurate and reliable fact about natural events.
Answer:
C
Explanation:
The correct answer would be that in science, a theory is well supported by observations and/or experimental data.
Theories are usually derived from testing hypotheses. Untested statements from observations are referred to as theories. When hypotheses are tested using a series of independent experiments and found to be true, they become theories.
Hence, theories are well supported by observations and data in science. A theory remains accurate for as long as there are no contradictory findings to it. Theories can, however, be modified once there are data to back them up.
The correct option is C.
can someone please help me ..
The best one word summary of what blood does is
insulates
carries
signals
cleans
Answer:
Carries
Explanation:
The blood is a tissue composed of plasma (liquid) and various cells. It is a major component of the circulatory system. The blood serves majorly as a "CARRIER" helping to transport different substances throughout the body.
The blood CARRIES oxygen, nutrients, hormones and other important materials throughout the body as it circulates.
please help me on this
Answer:
secondary succesion
Explanation:
Answer:
its
primary succession
i hope the answer was helpful
What should Jill’s conclusion be?
Answer:
the conclusion should be... depending on the amount of fertilizer you use it will have more or fewer flowers on each plant due to a lot of fertilizer or less. hope this helps have a good day.
Volcanoes are usually formed as a result of _____.
a transform fault boundary, where both plates are oceanic
a convergent boundary, where both plates are continental
a convergent boundary, where at least one of the plates is oceanic
a divergent boundary, where at least one of the plates is oceanic
Answer:
a transform fault boundary, where both plates are oceanic
Explanation:
A volcano is formed when hot molten rock, ash and gases escape from an opening in the Earth's surface. The molten rock and ash solidify as they cool, forming the distinctive volcano shape shown here. As a volcano erupts, it spills lava that flows downslope.
Answer:
a transform fault boundary, where both plates are oceanic
Explanation:
list 5 types of bacteria d their unique home.
Which cells are most likely to increase in number as a result of this adaptation?
neurons
red blood cells
white blood cells
muscle cells
Answer: red blood cells
Explanation: took the test haha
Which of the following best describes the relationship between cells and living things in general?
You need to add the pictures for us to see..
What is genetic tagging?
O a technique that uses specific antibodies to
visualize features of cells
O a technique that visualizes how specific
genes are used within a cell
O a technique in which cells are purposefully
grown under specific conditions
o an imaging technology used to study features
smaller than the human eye can see
Answer:
a technique that visualizes how specific
genes are used within a cell
Explanation:
Name two processes that are important in the carbon cycle.
Options: a. Photosynthesis and nitrification b. Nitrification and respiration
c. Photosynthesis and respiration d. Nitrification and denitrification
I'm thinking it's A but am unsure.
Answer:
I think it's C, sorry if I'm wrong. I just took this class.
A basketball with a mass of 0.60 kg is accelerated with a force of 10.8 N. If resisting forces are ignored, what is the acceleration of the basketball to the nearest m/s2?
Answer:
18 m/s^2 A newton is defined as kg*m/s^2 and you want to accelerate a mass in kg, getting a result of m/s^2. So what you need to do is cancel out the kg unit in the newtons. You can do that by dividing the newtons by kg. So let's do the math. 10.8 kg*m/s^2 / 0.60 kg = 18 m/s^2 So the ball has an acceleration of 18 m/s^2. Remember, look at the units you have and the units you desire. By doing so, the math operations become obvious.
Explanation:
Answer:
18 m/s^2
Explanation:
18 m/s^2 A newton is defined as kg*m/s^2 and you want to accelerate a mass in kg, getting a result of m/s^2. So what you need to do is cancel out the kg unit in the newtons. You can do that by dividing the newtons by kg. So let's do the math. 10.8 kg*m/s^2 / 0.60 kg = 18 m/s^2 So the ball has an acceleration of 18 m/s^2. Remember, look at the units you have and the units you desire. By doing so, the math operations become obvious.
Which gas is released during the light reactions of photosynthesis?
Choose all that apply. Carbohydrates contain the following elements:
Answer: carbon, hydrogen, and oxygen
Explanation:
hydrated carbon which results to sugar and oxygen
Explanation:
plz give me brainiest
PLEASE HELP ME!!!! ANSWERS INCLUDED< BRAINLIEST!! Which of the following are single displacement reactions??
Answer:
B & C
Explanation:
If you are using A pex, I believe these are the correct answers.
Oxygen enters a cell via:
Active transport
Diffusion
Filtration
Osmosis
Answer:
Oxygen and carbon dioxide move across cell membranes via simple diffusion, a process that requires no energy input and is driven by differences in concentration on either side of the cell membrane.
Explanation:
Simple diffusion is responsible for the spread of an air freshener through a room, or of a few drops of dye to eventually turn a glass of water a uniform color. Molecules naturally disperse from areas of higher concentration to lower concentration.
As oxygen-rich (and carbon dioxide-poor) blood travels by a cell the oxygen diffuses through the cell membrane to the area of lower concentration inside the cell. It can do this easily because the oxygen molecule (O2) is very small and has no charge or polarity. The oxygen is used up rapidly by mitochondria. This rapid consumption causes oxygen to constantly move into the cell from the blood.
The mitochondria creates carbon dioxide (CO2) as a waste product of cellular respiration (the process that makes energy for your body). Because the CO2 is of a higher concentration in the cell than in the blood passing by, this gas continually diffuses out of the cell. It too is small and uncharged so it can pass through cell membranes easily.
These movements require no energy (in the form of ATP) on behalf of the cell.
how does food go bad in what ways can food be preserved
Due to microbial and bacterial attack the food get spoiled.
We can preserved the food by:
Sun dyingcooling in refrigeratorsaltingchemical preservatives like, sodium benzoatePLEASE GIVE ME AS BRAINLIEST
Certain materials are needed by the mitochondria to make energy. Which of the following is most responsible for getting the
materials into the cell?
O A The materials need to Love through the cytoplasm to get to the mitochondria
B The cell membrane lets the materials into the cell so they can get to the mitochondria
OCThe cell wall lets the materials into the cell so they can get to the mitochondria
D. The materials need to move through the lysosome to get to the mitochondria
Answer:
C. The cell membrane lets the materials into the cell so they can get to the mitochondria
Explanation:
The cell membrane regulates the entrance and exit of certain molecules inside the cell. Some molecules can easily pass through the phospholipid bilayer via passive transport. Others use protein channels, and some require movement by active transport, or endocytosis.
help with this please
Answer:
cell wall: Rigid protective barrier around a cell made of polysaccharides
Explanation:
Thats all i got sorry
I give a brainliest who answers this question. What kind of chemical reaction does this energy diagram show?
look the Photo.
A) exothermic
B) endothermic
C) ionic
D) mass creating
Answer:
b) endothermic
Explanation:
Of the following statements, WILL MARK YOU BRAINLIEST!!
which is not part of the current rules of animal research?
A. The research must have a clear, scientific purpose.
B. The research must provide humane care and housing.
C. The research must ensure the least amount of suffering possible.
D. The research must use animals whenever possible.
Answer:
Answer D
Explanation:
Because for animal research, you want to use animals as little as possible
Answer:
D: The research must use animals whenever possible.
Explanation:
I got it right on edge
Although Arroyo does not mention the term "watershed," it was discussed in the unit as being closely related to and impacted by drought and floods. Please discuss how the watershed relates to drought and heat. How might Arroyo have integrated the term watershed into her talk?
Answer:
The land between the water has become more prevalent because due to droughts, the water has evaporated and dropped.
Explanation:
Which of the following is NOT a photosynthetic pigment?
Cartenoids
cytokines
Chlorophyll
Xanthins