Explanation:
factores físicos son la luz solar , el suelo , el agua , los nutrimentos , la temperatura , y el aire
A scientist grew an Elodea plant in a freshwater aquarium. She removed a leaf from the plant and placed the leaf in a hypertonic solution containing 8% salt in order to observe what happened to the cells within the leaf. When she looked at the cells under a microscope, she noticed that the cells in the leaf shrunk. Which statement best explains what caused the cells to shrink?
The hypertonic solution caused the water in the cell to move from the cytoplasm into the nucleus.
The salt moved from the hypertonic solution into the cell and chemically bonded with the water.
The salt within the cell moved through the cell membrane into the solution with the higher salt concentration.
The water within the cell moved through the cell membrane into the solution with the lower water concentration.
Answer:
The water within the cell moved through the cell membrane into the solution with the lower water concentration.
Explanation:
According to this question, a scientist removed the leaf of a plant originally grown in a freshwater aquarium and placed it in a hypertonic solution containing 8% salt. Firstly, A HYPERTONIC SOLUTION is that solution which contains a higher solute concentration than that of the intracellular environment.
Due to this concentration gradient i.e. difference in concentration, OSMOSIS process will be triggered. Osmosis is the movement of water from the region of low solute concentration (the leaf cells) to a high solute concentration (the salt solution) via a semi-permeable membrane (cell membrane).
Therefore, osmotic process causes water to move from the leaf cells into the salt solution via the cell membrane. hence, causing the cells of the leaf to shrink.
12 The second softest mineral according to the Mohs scale of hardness is the
A Tale
B. Apatite
C Calcite
D. Gypsum
Where is the air pressure lower around an airplane wing?
1. under
2. above
Answer:
Above
Explanation:
If you are to look at a diagram, it is clear.
Answer:
2. Above
Explanation:
Zero elevation is also known as
A. peak
B.profile
C.sea level
D.base
Help plz! I will make you Brainliest
Precipitation is one of the main processes involved in the water cycle. It involves the formation of water falling to the ground from clouds and transforming into either rain, snow, sleet, or hail. Which of the following properties of water can be used to explain why when water falls from clouds it is able to form a rain drop? *
A. cohesive ability
B. universal solvent
C. expansion upon freezing
D. moderation of temperature
Answer: A
Explanation: Hydrogen bonds between the water molecules on the liquid surface are relatively strong and pull on each other more than air molecules. This bond strength results in surface tension that tends to minimize the liquid surface area and produce a spherical raindrop.
Precipitation is the one of the main processes in the water cycle. It involves the formation of clouds and transforming into either rain, snow, sleet, or hail. This is possible due to the property of cohesive ability of water molecules. Thus, the correct option is A.
What is Precipitation?
Precipitation is one of the main processes involved in the water cycle. It is the liquid or frozen water which forms into the atmosphere and falls back to the Earth in the form of rain, sleet, snow, or hail. It comes in many different forms. Along with the evaporation and condensation of water, precipitation is one of the three major parts of the global water cycle.
Precipitation is achieved by the cohesive ability of the water molecules which explains the formation of clouds and rain drops. Cohesive forces are responsible for binding the compounds together such as a rain drop containing water molecules.
Therefore, the correct option is A.
Learn more about Water cycle here:
https://brainly.com/question/1151425
#SPJ2
An organism was found. It is unicellular, but its one cell does contain a nucleus and the cell is autotrophic. What type of organism is this?
A
animalia
B
protista
C
bacteria
D
fungi
Answer:
B protista
Explanation:
The cell is unicellular, so it can not be an animal, which are all multicellular.
It contains a nucleus, which means it cannot be prokaryotic (it cannot be bacteria)
The cell is autotrophic, which means it cannot be a fungus, which are heterotrophs
Therefore, the organism must be a protist, so the answer is B, protista.
what is a consequence of excess carbon building up in Earth’s atmosphere?
environmental science own words pls
Answer:
The carbon built up makes the heat from the sun get rapped in the atmosphere, so the word gets hotter and it gets hotter faster
How are chloroplasts like mitochondria?
Group of answer choices
They both contain DNA.
They are both found in animal cells.
They look alike.
They can both use energy from sunlight.
Answer: Chloroplasts, like mitochondria, produce energy for plant cells. Both mitochondria and chloroplasts have their own circular DNA and can function independently of the eukaryotic host cell. Hope this helps! I don't like giving direct answers I feel you should have a chance to learn.
Explanation:
How does mutation increase chances for survival? Please help me.
Answer:
These mutations can increase an organism's chance for survival and usually occur over a course of many generations producing offspring (or babies) with the helpful mutation. ... This would allow you to mate and produce offspring because you would have survived for longer lifespans.
Explanation:
In your own words, explain why an organism would require all four of the main biomolecules. What would occur if any of these biomolecules were missing? Are any of the biomolecules more important than the others? Is there one that we could live without?
Answer:
I like yo cut gggggggggggg
Motion can be described through a change in ____.
Answer:
distance, velocity, acceleration, speed, and time
Explanation:
What is one way that creativity made up for limited technology for early biologists?
Scientists created unique experiments for exploring living organisms without killing them.
Scientists personally designed the custom equipment they needed for their experiments.
Scientists were able to use their imaginations rather than experiments to answer questions.
Scientists developed advanced mathematics to compensate for limited technology.
Answer:
A
Explanation:
Edge2020
sete are locomotary organs of
o Leech
Earthworm
• Nereis
syron-
Answer:
Leech
hope this helps u
Which of the following is NOT a characteristic of all living things?
Ability to reproduce
Ability to move
O Growth and development
Homeostasis
Answer:
homeostatis
Explanation:
The answer should be homeostatis. Organisms can not do this.
Answer:
Ability to move
Explanation:
All organism species have the ability to reproduce, grow and develop, and maintain homeostasis (for example, sweating). Not all organisms can move, however. Cacti, for instance, are stiff and do not move on their own, yet are still alive.
Only eukaryotic cells have
cytoplasm
membrane bound organelles
DNA
ribosomes
What is a phenotype???
Answer:
the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
A genotype is the genetic constitution of an individual organism.
Explanation:
What happened to the water in the 1st stages of photosynthesis?
The water realeases and forms into oxygen gas and hydrogen ions
Answer:
The energy of the sunlight is absorbed by the chloroplast. The water reacts in sunlight to form one glucose molecule and the water releases oxygen as that is part of it's role.
Explanation:
True of false: The wings on an airplane are flat.
1. False
2. True
Answer:
False
Explanation:
An airplane wing is round on top.
HELPPPP PLEASE ITS DUE IN LIKE 15 minutes..... please helppp
Answer:
2 Should be b, 3 Should be a and 6 Should be e
Explanation:
I aced my biology final
One way that cells maintain homeostasis is by controlling the movement of substances across the cell membrane.
Answer:
True
Explanation:
One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. The lipid bilayer is selectively permeable to small, nonpolar substances. Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.
If an elements has two or more atoms with the same number of protons but different number of neutrons it is called a(n) _____________.
Question 2 options:
isotope
neutron
electron
none of the above
Answer:
electron
Explanation: The reason for electron is because when an atom has neutrons and protons but a different number of neutrons it is called an electron
IF it wasn't helpful sorry :(
Provide evidence to support the claim that viruses fall on the border between living and nonliving.
Answer:
Just like living organisms, viruses use genetic material such as DNA or RNA, but unlike living things, they cannot reproduce using mitosis, binary fission or meiosis. Instead, they simply insert the genetic material into a living cell and then replicate their genetic material along with the cell's in order to create more viruses.
Competition a type of symbiotic relationship, is where
Answer:
competition is a type of relationship where two animals that have the same niche will compete against each other for resources
Explanation:
just took the test ;)
what are the 5 units of life
i already have
reproduction,has cells,uses energy, and intreacts with the environment, WHAT IS THE LAST OOOONNNNEEEE
3. Which of the following organelles are found in plant cells? Select all that apply.
central vacuole
flagella
O lysosomes
O nucleus
n cell wall
Answer:
The organelles found in plant cells: central vacuole, nucleus, and cell wall.
Answer:
Central Vacuole, Nucleus, and Cell Wall
Explanation:
Abiotic factors of an ecosystem can include ?
Answer:
Abiotic factors are the non-living parts of the environment that can often have a major influence on living organisms. Abiotic factors include water, sunlight, oxygen, soil and temperature.
How do the circulatory and nervous systems work together to maintain homeostasis | ASAP
Answer:
The circulatory and the nervous systems work together to maintain homeostasis because the circulatory system gives your brain a lot of oxygen and glucose while your brain regulates your heart rate and blood pressure. Meanwhile, your bones are busy making new blood cells. Working together, these systems maintain homeostasis.
Hope this helps!
research and tell the story about a case in which bones helped identify a missing person or helped solve a crome
Answer:
footsteps
Explanation:
the bones leave footsteps in the ground and that is what detectives use to solve a missing or help solve a crimescene
Can someone answer this!!!!!!
Answer:
Diffusion.
Explanation:
Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration.
When the [tex]O_{2}[/tex] moves in, the [tex]CO_{2}[/tex] moves out.
b) How does the thermal energy of solid water change as it melts?
Answer:
Hi! So solid water would be ice, the particles in ice are very close together which makes it firm and makes it ice. When you put the ice in the microwave, (Microwave has heat so it would be thermal energy!) the particles in the ice mover a tiny bit away from each other which then makes it water. Then, if you boil the water, the particles that are in the water move far away from each other and it turns into steam!
Hope this helps!! Stay safe! <3