Behind your house, there's a gorgeous pond filled with frogs. You notice that the frogs behind Mr. Archer's house often have three legs. You start wondering if the fertilizer that Mr. Archer uses for his lawn is causing the deformities in the frogs. You collect 10 frogs and put the special fertilizer in their container (Group A). You put another 10 frogs and place them in a different container with just water (Group B). A week later, 7 out of 10 of the frogs in group A grew only three legs. The frogs in group B grew four legs.
What is the independent variable?
Question 3
When dissolved in water, many bases release which of the following particles?
Select one:
a. Htions
lil
b. H2 molecules
C. (OH) ions
DE
d. O molecules
CLE
Bases release OH- ions in solutions, whereas Acids release H+ ions in solutions
100 points!!!! pls help!!!
A football player gets tackled during the game, which of the following body systems is responsible for protecting their organs?
circulatory system
reproductive system
skeletal system
nervous system
Answer:
Skeletal system
Explanation:
the bones of the skeleton protect the internal organs and reduce the risk of injury on impact. For example, the cranium protects the brain, the ribs offer protection to the heart and lungs, the vertebrae protect the spinal cord and the pelvis offers protection to the sensitive reproductive organs.
Answer:
I believe your best choice from the given choices above would be C) skeletal system. The bone structure within the human body, such as the rib cage for instance, provides protection for our organs and takes more impact rather than any of our organs. Without our skeletal system, we would have zero protection for our organs, increasing the chance of more internal body damage.
explain movement in fern
Answer:
One of the most typical ways that plants like ferns move is through a process known as phototropism. Essentially, they move and grow towards light .Plants may also move or grow in response to other stimuli, in addition to light. They can grow or move in response to physical touch, in response to a chemical, or toward warmth
nitrogen fixing organisms in aquatic ecosystems are a. plants b. large fish c. zooplankton d. cyanobacteria
Answer:
Cyanobacteria
Explanation:
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Answer:
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GOOD BYE!!
TRUE OR FALSE: Agricultural Scientists play a vital role in maintaining and expanding our nation's food supply.
What explains why certain dead organisms in the past were not fossilized?
Answer:
They may not have skeletons, their body/bones were destroyed underground, the earth around them wasn't the correct type of rock, etc.
Explanation:
Only a small percentage of organisms are ever fossilized, and can only be fossilized under specific circumstances.
PLEASE HELP ASAP ILL GIVE YOU BRAINLEST
explain what density is. How is it different from weight and mass?
Hey there! I'm happy to help!
Density is how much mass there is per amount of space. The formula for it is mass divided by the volume. How much mass is there per (per means divide) amount of space?
Think of it like a room in a house. If the room only has one person, it isn't going to be very dense with people because there is only one person in the entire room. If there were 100 people, it would be very crowded in that room and the whole room would weigh a lot more. If we make our room the size of a huge convention hall though, 100 people wouldn't make it very crowded,. and it would be less dense. So the amount of people (mass) and the size of the room (volume) affect density.
In that sense, density is kind of like how crowded a thing is.
A hollow watermelon has less density than one that isn't because a watermelon that isn't hollow has more substance inside of it (more mass).
Mass is a factor of density because it measures how much of something there is. It can be related to the people in the room.
Weight is mass but with gravitational influence. A watermelon in space is going to weigh less than a watermelon on Earth because in space there is no gravity and it is floating around, but it will still have the same density just like our room full of people would still be crowded even if the people weighed nothing and were floating around.
On Earth though, we measure mass with terms like pounds, kilograms, etc. We use the term mass over weight because it is more scientifically accurate when calculating density.
Have a wonderful day and keep on learning! :D
i really need ??????????????
How will a solution change if a base is added?
The hydroxide ion concentration will decrease and lower the pH.
The hydroxide ion concentration will decrease and raise the pH.
The hydrogen ion concentration will increase and lower the pH.
The hydroxide ion concentration will increase and raise the pH.
Answer:
As the concentration of hydrogen ions in a solution increase, the more acidic the solution becomes. As the level of hydroxide ions increases the more basic, or alkaline, the solution becomes. ... Thus, as the hydrogen ion concentration increases hydroxide ion concentration falls, and vice versa.
Thank you
Question 1(Multiple Choice Worth 5 points)
(06.04 LC)
The __________ system is responsible for moving blood cells throughout the body.
circulatory
endocrine
immune
respiratory
Answer:
The . .circulatory system is responsible for moving blood cells throughout the body.circulatory
I hope it helps
Answer:
Hii!! the answer is circulatory
Explanation:
Circulatory is the only responsible system for moving cells. The blood circulatory system, is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of a human or other vertebrate. Hope this helps! Bye bye.
Fill in the blanks please I’ll mark you brainliest!
Answer:
16. a, research
Explanation:
you should form your hypothesis on research because based on what you researched is what will help you try predict the outcome of the experiment
help is appreciated!!!
Answer:
d secondary consumer
Explanation:
Because it eats what eats the plant
Answer:
secondary consumer
Explanation:
give brainliest please I need it to level up
After the comma is instead into the sentence the sentence now seems to be asking whether or not the bird ate
Answer:
yes
Explanation:
probably did something else first
In the metric system, what do the kilogram, kilometer, and kilocalorie have in
common?
a. All measure the same type of quantity, and are interchangeable.
b. All are units 1000 times larger than a base unit.
c. All are units 1000 times smaller than a base unit.
d. All are units 1 million times larger than a base unit.
Answer:
yes
Explanation:
yes
In the metric system, all are units 1000 times larger than a base unit. The correct option is c.
What is a metric system?The metric system is a measurement system that employs the meter, liter, and gram as base units of length (distance), capacity (volume), and weight (mass).
The meter, gram, and liter are the three most common base units in the metric system.
This name is derived from the Greek word metron, which means "measure."
The physical standard for the meter was to be built to equal one ten-millionth of the distance between the North Pole and the Equator along the meridian running between Dunkirk, France, and Barcelona, Spain.
The kilogram, kilometer, and kilocalorie all share the property of being 1000 times larger than a base unit in the metric system.
Thus, the correct option is c.
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Contrast the movement of particles in a
solid, a liquid, and a gas.
Answer:
The particles in a solid are tightly packed and locked in place. ... The particles in a liquid are close together (touching) but they are able to move/slide/flow past each other. The particles in a gas are fast moving and are able to spread apart from each other.
Explanation:
Choose one plant structure that has a similar function to a structure in the human body. Give the name of both of the structures and explain how they have similar functions.
Answer:
the stem of a plant and the human spine
Explanation:
They both help stay upright, have a structure, and plants have nodes for leaves and roots and flowers just like we have arms and legs connected to our body.
(i tried my best to explain, i hope it helps<3!)
16. Explain Where do
slime molds get their
nutrients?
Answer:
These organisms exhibit properties of both fungi and protists. The slime molds and the water molds are members of this group. They all obtain energy by decomposing organic materials, and as a result, are important for recycling nutrients. They can be brightly colored and live in cool, moist, dark habitats.
explain why are auxins added to the agar
Answer:
Auxins are added to the agar because Auxins control the growth of plants by promoting cell division and causing elongation in plant cells.
Hope it is helpful....Which bio molecule is responsible for long term energy
Answer:
C; lapids
Explanation:
1. Which of the following is an observation?
(A) The piece of metal is red, so it must be hot.
(B) He likes to run.
(C) The child's block is orange.
(D) The building looks like it must have fallen down
Interaction with the Environment
Answer:
Human environment interaction is the way people adapt and modify the environment. There are 3 types of human environment interaction The way people depend on the environment for food, water, timber, natural gas etc. The way people modify the environment positively or negatively like drilling holes, building dams.
Explanation:
How do scientific models provide a practical solution for some types of research? Check all that apply.
Answer:
Where are the options?
Explanation:
(Its actually Physical Science)
Which two elements in the list would bond together based on their ionic charges?
A. calcium and potassium
B. potassium and neon
C. potassium and iodine
D. calcium and neon
Answer:
It's C. Potassium and iodine
The two elements in the list that would bond together on their ionic charges is potassium and iodine. The correct option is C.
What is ionic bond?Ionic bond, also known as electrovalent bond, is a type of linkage formed in a chemical substance by the electrostatic attraction of ions with opposite charges.
When the valence (topmost layer) electrons of one atom are indefinitely transmitted to another, a bond is formed.
The complete transmission of valence electron(s) among both atoms is referred to as ionic bonding.
It is a chemical bond that produces two opposing ions. The metal loses electrons in ionic bonds to become a positively charged cation, meanwhile the nonmetal chooses to accept those electrons to become a negatively charged anion.
Ionic bonds are formed by potassium iodide (KI). Iodine and potassium have very divergent electronegativities.
Since ionic bonds form between atoms with a large difference in electronegativity, the two atoms would form an ionic bond.
Thus, the correct option is C.
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Carbohydrates provide many things, including:
Answer:
Carbohydrates are mainly found in plant foods. They also occur in dairy products in the form of a milk sugar called lactose. Foods high in carbohydrates include bread, pasta, beans, potatoes, rice, and cereals. Carbohydrates play several roles in living organisms, including providing energy
Explanation:
hope its help
thank you
(argumanta la importancia del desarrollo cientifico en el manejo del agua)
ayuda porfa :c
Answer:
La gestión del agua es importante ya que ayuda a determinar las expectativas futuras de riego. La gestión del agua es la gestión de los recursos hídricos bajo políticas y regulaciones establecidas. El agua, que alguna vez fue un recurso natural abundante, se está convirtiendo en un bien más valioso debido a las sequías y el uso excesivo.
Explanation:
La gestión de los recursos hídricos es un tema muy importante desde varios ángulos, como el desarrollo de masas de agua para el futuro, la protección de las masas de agua disponibles de la contaminación y la sobreexplotación y la prevención de disputas. Una cuestión primordial es el agua: su disponibilidad, calidad y gestión.
Aquí hermano te ayudé ^-^ ;) :)
A _ is a group of connected cells that have a similar
A
function.
Answer:
A TISSUE is a group of connected cells that have a similar function.
Genetic variation occurs within the same species. True or False?
Answer:
True
Explanation:
Genetic variation describes naturally occurring genetic differences among individuals of the same species. This variation permits flexibility and survival of a population in the face of changing environmental circumstances.
Which is NOT a condition required for allele frequencies to remain the same over time?
a. natural selection
b. random mating
c. very large population
d. absence of mutation
