Answer:
THE 1 DROP OF AMMONIA WILL DIFFUSE FAST AS ITS QUANTITY IS LESS,LESSER THE QUANTITY FASTER THE DIFFUSION.
Which type of chemical bond holds together sodium chloride (NaCl)?
A.
polar covalent
B.
ionic
C.
nonpolar covalent
D.
metallic
Answer:
D
Explanation:
it is because it ends with the (ium)
is this statement true or false?
Answer:
false
Explanation:
individuals from different populations can be genetically more similar than individuals from the same population.
In North American forests, two species of birds, nuthatches and brown creepers, forage on the same trees for insects. Brown creepers feed on insects found near the bottom of the tree trunk, while nuthatches feed on insects in the top part of the tree. The difference in foraging behavior most likely affects the nuthatches and brown creepers by -
A) Establishing dominance between the birds for nesting sites
B) Reducing competition between the birds for resources
B) Allowing the birds to avoid many types of predators
C) Preventing the birds from interbreeding with each other
Answer:
Allowing the birds to avoid many types of predators.
A friend argues that a car is alive because its parts form organized systems and it requires
energy (gasoline and battery power). How would you respond to your friend?
Answer:
Although it is true that a car has its parts in an organized system and it uses fuel of some sort to run, a car doesn't have the characteristics of what classifies something as a living thing.
1. A car is not made up of cells. Living things are made of cells.
2. A car doesn't respond to its environment. Living things respond to their environment.
3. A car cannot grow and develop. Living things grow and develop.
4. A car cannot reproduce. Living things reproduce.
Please help. I don’t know how to fill this out.
What are reactants in a chemical reaction?
outputs
substances that are formed by reactions
substances that speed up reactions
inputs
[tex] \large \mathfrak{Answer : }[/tex]
Reactants are the substances that takes place in a chemical reaction, therefore the correct option is :
D. Inputs
Answer:
substance that speed up reaction inputs
The __________ system is responsible for moving blood cells throughout the body.
circulatory
endocrine
immune
respiratory
Which variable responds to the changes of the independent variable? A-independent B-causation C-dependent D-Controlled
Answer:
The dependent variable
Explanation:
The independent variable is always changed by the scientist, and what happens then is known as the dependent variable because it depends on the indépendant variable!
How are acids and protons related? (1 point)
O An acid can donate protons to a base when they react.
Acids are substances that contain more protons than bases.
An acid can accept a proton from a base when they react.
Acids are substances that contain fewer protons than bases.
Answer:yes
Explanation:
An acid is a substance that donates protons (in the Brønsted-Lowry definition) or accepts a pair of valence electrons to form a bond (in the Lewis definition). A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids.
Acids and protons are related in the sense that "acid can donate protons to a base when they react".
WHAT IS AN ACID?
Acids, according to Bronsted-Lowry definition, are substances/compounds that can donate hydrogen ions (protons). An acid donates protons (H+) to a base when they react in a neutralization reaction. The donor acid becomes a conjugate base while the recipient base becomes a conjugate acid. For example;HCl + NaOH → NaCl + H2O
In this reaction, HCl acid donates a proton (H+) to hydroxide ion (OH-) to form water (H2O).Therefore, acids and protons are related in the sense that "acid can donate protons to a base when they react.
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An investigation was designed to determine how freshwater fish maintain homeostasis within their environment. It was observed that the concentration of substances inside the fish cells was much higher than the concentration of substances in ponds, lakes, and streams and that freshwater fish have a constant flow of water from the environment into their cells.
Based on these observations, in what type of environment must these fish live?
A
hypertonic
B
hypotonic
C
isotonic
D
osmotic
The freshwater fish must live in a hypotonic environment to maintain homeostasis
WHAT IS OSMOSIS:
Osmosis is the movement of water from region of higher concentration of water or low concentration of solute to a lower concentration of water or higher concentration of solute. In terms of tonicity, a solution with high concentration of solute is called whileHYPERTONIC a solution with low concentration of solute is called HYPOTONIC. If the freshwater fish regulates water loss by having a constant flow of water from the environment into their cells, then the FISHES must live in an environment that has a higher concentration concentration of water than their cells i.e. a HYPOTONIC SOLUTION.Hence, the freshwater fish must live in a hypotonic environment to maintain homeostasis
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Question 2 (Matching Worth 4 points)
(01.02 LC)
2
Match each term with its description
Match
Term
B
Biosphere
Definition
A) A place in an ecosystem where an organism normally lives
D
Ecosystem
B) Includes all living things and the areas in which they live
С
Biome
C) A large geographical area classified by its climate and the plant
and animal life within it
A
Habitat
D) Includes all living things functioning together with the physical
factors of their environment
s Question
Answer:
b
c
d
a
Explanation:
The matching of each term with respect to its description is as follows:
Biosphere: is a place in an ecosystem where an organism normally lives. Ecosystem: includes all living things functioning together with the physical factors of their environmentBiome: is a large geographical area classified by its climate and the plant and animal life within itHabitat: includes all living things and the areas in which they live. What is an Ecosystem?An ecosystem may be defined as a place or an area where members of different species live together and interact with one another for the purpose of food, shelter, and space.
The Ecosystem comprises all biotic and abiotic factors of any geographical location. The Biosphere only includes the living forms where they efficiently live and play their roles. Habitat is the area where a particular type of organism is best adapted due to natural selection.
Therefore, the matching of each term with respect to its description is appropriately described above.
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Free po ints
i need help
Use the diagrams below to determine the volume of the irregular solid.
Answer:
BEGINNING VOLUME-10ML
FINAL VOLUME =20ML
THEREFORE,VOLUME OF SOLID=20-10 ML
=10 ML
Scientific knowledge is always changing.
TRUE
FALSE
Answer:
Yes! I think/ True
Explanation:
The accepted views of science knowledge can change over time. Changes can result from new science observations, but can also be affected by social, political or religious convictions.
Answer:
True
Explanation:
Because the more technology improves on the daily the easier it'll be to discover new things about science that in the past were not achievable because they didn't have the proper resources
What are unisexual animals
Answer:
all animals are the same sex
What are three human activities that can disrupt the water cycle, and what effect each one has
Answer:
I don't know
Explanation:
I don't know
why is silk moth is called silkworm?
please help me
Answer:
It is the closest relative of Bombyx mandarina, the wild silk moth. The silkworm is the larva or caterpillar of a silk moth. It is an economically important insect, being a primary producer of silk.
What are the subkingdoms in kingdom prokaryotae
Answer:
The Prokaryotae are further divided into two subkingdoms. These are called the Eubacteriobonta (which contains the so-called Eubacteria) and the Archaebacteriobonta (which contains the so-called Archaebacteria). This split arose from the research of Carl Woese.
Need help ASP do tomorrow
what is photosynthesis, give with examples?
Anyone help me
Answer:
it is a process used by which plants use sunlight, water and carbon dioxide to create oxygen and energy in the form of sugar
Which of the following is considered a balance within an organism *
a. metabolism
b.adaption
c. homeostasis
d. none of these
PLS HELP QUICK IM DOING A TWST
Answer:
C
Explanation:
In biology, homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems. This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits.
The cells of a grasshopper contain DNA. The grasshopper could be alive because it displays which sign of life?
A.
response to the environment
B.
information system
C.
complex chemical activities
D.
reproduction
Answer:
D.reproduction
glass hoppers reproduce
a patient breaks a leg. predict which model a doctor will use to show where the break is
A doctor can use a 2D image model to show where the break is.
When a patient breaks a leg (the break could be as a result of fracture or bone dislocation), the doctor needs to scan the patient in order to determine the exact location of the break and the extent of the injury.
The gamma camera, x-ray machine and PET scanners are some of the devices that can be used to scan a bone.
Each of these devices uses 2D image technology to show the result of the scan.
So, a model that can be used by a doctor to determine the location of the break is 2D image.
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Which three of the following are major functions of proteins?
Answer:
Eating bananas
Explanation:
Also Be my friend. :)
Answer:
1. hormones
Many hormones are protein in nature; hormones control growth and metabolic activities of the body
2.catalytic activities
Enzymes are globular protein. Enzymes speed up the biochemical reactions and help in digestion.
3.Immunity
Antibodies are proteins that bind to the pathogens and inhibit their activities.
hope this will help u :)
why is it important to understand the process of scientific discovery?
Why is photosynthesis important for both plants and humans
What is the initial velocity?
Answer: Initial Velocity is the velocity at time interval t = 0 and it is represented by u. It is the velocity at which the motion starts. They are four initial velocity formulas:
Explanation:
What is the function of the sodium potassium pump?
To move sodium ions extracellularly and potassium ions intracellularly
To move sodium and potassium ions extracellularly
To move potassium ions extracellularly and sodium ions intracellularly
To move sodium and potassium ions intracellularly
Answer:
To move sodium ions extracellularly and potassium ions intracellularly
Explanation:
just took test
What mnemonic device are you supposed to
remember about the structure of biomolecules?
Answer:
Mnemonic Device: Double the GatorADEs, GUArantee Nine's purity Explanation:
to remember the double-ringed purines, Adenine & Guanine
Double the GatorADEs, Guarantee Nine's purity are the mnemonic device used to remember about the structure of biomolecules.
What are biomolecules?
Biomolecules are defined as any of the many compounds created by cells and living things.
They are the fundamental components of all life things.
They are also be defined as the building elements of life and play crucial roles in living things.
There are basically four types of biomolecules.
CarbohydrateLipidsProteinsNucleic acidBecause they enable organisms to grow, endure, and reproduce, biomolecules are necessary for life. They contribute to the growth of creatures, from simple cells to sophisticated living entities like people, by interacting with one another. Their diverse architectures and shapes allow them to perform a range of purposes.
Thus, Double the GatorADEs, Guarantee Nine's purity are the mnemonic device used to remember about the structure of biomolecules.
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Which is the best hypothesis for the scientific question "How does light intensity affect the rate of photosynthesis?"
O Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis.
O Light intensity has no effect on the rate of photosynthesis,
• If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.
Light intensity has an impact on the rate of photosynthesis.
Answer: • If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.
Explanation:
its good to think about the hypothesis as an if then statement. Example: If the independent variable(light intensity) is changed than the dependent variable(rate of photosynthesis) with be effected in this way.
