Answer:
mass : volume
Explanation:
Density is a physical quantity. An intensive property which can be used to determine any substance in nature.
Density is a unique quantity because it highlights the mass per unit volume of a substance.
Mathematically;
Density = [tex]\frac{mass}{volume}[/tex]
Mass is the amount of matter contained in any substance
Volume is the space they occupy
We clearly see that the ratio of mass to volume gives the value of density.
In short why is homeostasis so important for survival
Answer:
Homeostasis is the self regulating mechanism.
for example, It keeps the stable environment within the body. i.e., eventhough our surrounding environment is very chill our body temperature won't change.
solute concentration in the environment is higher than the solute concentration in the cell
Answer:
hypotonic
Explanation:
does vaccine use weak and dead pohthogen
Answer:
yes
Explanation:
A: No, vaccines do not use weak and dead pathogen.
A2: Some vaccines do use those substances but are unapproved.
Most unapproved vaccines are illegal & not approved by CDC or the government. So no, they do not include those,
Xylem tissue and phloem tissue make up a plant's transport system, A. true B. false
Answer:
true.
Explanation:
What is the role of Cdks? to create enzymes that produce chemical changes to signal the cell to move to the next phase of the cell cycle build structural components of DNA and energy-rich substances to activate the cyclins that cause progression of the cell cycle
Answer:to signal the cell to move to the next phase of the cell cycle
Explanation:
(Just took it)
Answer:
The answer is B. to signal the cell to move to the next phase of the cell cycle
Explanation:
Root cells of plants take in some minerals from the surrounding soil by spending energy. After the plant obtains enough minerals to maintain health, the plant will continue to absorb minerals from the soil. Which reason best explains why root cells need to spend energy in order to transport some minerals into cells?
The question is incomplete; the complete question is;
Root cells of plants take in some minerals from the surrounding soil by spending energy. After the plant obtains enough minerals to maintain health, the plant will continue to absorb minerals from the soil. Which reason best explains why root cells need to spend energy in order to transport some minerals into cells?
Root cells are unable to use sunlight energy for mineral uptake.
Mineral concentration is higher in root cells than in the surrounding soil
Cell membrane pores in roots are too small for passive uptake of minerals
Cell membranes in roots lack proteins for the passage of minerals.
Answer:
Mineral concentration is higher in root cells than in the surrounding soil
Explanation:
Mineral uptake by plant roots occurs by active transport of ions into the cells of root hairs, this process requires energy.
The concentration of minerals in the soil is quite low. The root hair cells of plants possess carrier proteins that carry mineral ions and move them into the cell against existing concentration gradient. This process requires energy and is known as active transport.
Is the animal cell unicellular or multicellular.
Answer:
Most of them are unseen, visible only under a microscope. These tiny organisms are unicellular, composed of only a single cell. The familiar plants, animals and fungi that we can see represent only a tiny fraction of life on Earth. These organisms, being made of more than one cell, are called multicellular.
Explanation:
2. What term is used to define when a cell has reached a balanced state?
Answer:
equillibrium
Explanation:
does anyone know the answer i really dont get it
Answer:
Depending on the way it is I believe it should be organ system the way I'm used to listing it.
Explanation:
It could be different though.
PLEASE ILL GIVE YOU A BRAINLIEST
please answer these questions
Answer:
I don't understand your question
Which of the following is the most likely function of this shape?
2. Which of these is not an ecological pyramid?
A. Pyramid of Energy
B. Pyramid of Biomass
C. Pyramid of Numbers
D. Pyramid of Species
Answer:
A. pyramid of energy
Explanation:
because yea
Which of the following best describes how a channel protein moves materials across the membrane? A)They provide a carrier for specific molecules to bind to and cross the membrane via endocytosis. B)They provide a passage for specific molecules to cross the membrane via passive transport. C) They provide a tunnel for solutes to cross the membrane via active transport. D) They provide energy needed for solutes to cross the membrane via facilitated diffusion.
Answer:
I would like to say A.......
Why does the cell membrane need proteins embedded in it?
Answer:
Transporter or Carrier Proteins. They are embedded in the cell membrane to help transport glucose and amino acids across the membrane. They are too large to go through ion channels.
Explanation:
Which best describes the mantle?
A. molten metal
B. dense, solid metal ball
C. hot but solid rock
D. dry land and ocean floor
Answer:
C. hot but solid rock
Explanation:
Can some help me? Please, due in 10 mins.
Answer:
C
Explanation:
If i were to explain i would be here all day and i have to go to town, contact me for an explanation.
Which one of these is an example of a biome?
oak tree
ocean water
a mountain range
desert
Answer:
Desert
Explanation:
pls mark brainliest
proteins that act as catalysts in biological reactions
A. glucose
B. enzyme
C. ATP
D. molecule
PLS ANSWER ITS URGENT
The energy in glucose cannot be released by
respiration
glycolysis
burning
photosynthesis
Answer: Photosynthesis
The energy in glucose cannot be released by photosynthesis.
How Can the energy in glucose be released by photosynthesis?
During photosynthesis, “producers” like green plants, algae and some bacteria convert light energy from the sun into chemical energy. Photosynthesis produces chemical energy in the form of glucose, carbohydrate or sugar.
Thus, photosynthesis is the correct option.
To learn more about photosynthesis click here:
https://brainly.com/question/1388366
Which type of plane would best separate the nose from the rest of the head?
1. sagittal
2. frontal
3. transverse
4. oblique
How do diatoms and algae obtain their food?
Answer:
Explanation:
I don't know how diatoms obtain their food, but I do know how algae obtains it. Algae is a plant, that green stuff you find growing on rocks in creeks and lake shores. Plants turn sunlight, water, and carbon dioxide into sugars, which it uses for food. Most plants also obtain nutrients from soil and water using their roots, but algae doesn't have roots so it only gets food through the process I explained above, photosynthesis. I hope this has been helpful.
Answer:
Diatoms
Explanation:
They obtain food by absorbing nutrients from ocean water. Unlike many other types of phytoplankton and marine organisms, diatoms don’t have body parts that allow them to swim. They obtain food by absorbing nutrients from ocean water, which is a very competitive process. Diatoms are relatively large and at a disadvantage for food absorption due to their bodies’ reduced surface areas.
Movement of materials into and out of cell from high to low is called.....
Answer:
Diffusion. The net movement down a concentration gradient, from high to low concentrations.
Explanation:
Identify the macromolecule in the figure that store genetic information in molecules DNA, and RNA?
Answer:
The correct answer is - option 2. (chemical structure of the nucleotide)
Explanation:
Nucleic acid, DNA and RNA stores genetic information which helps in produces various proteins and for the next generation of the cells. Nucleic acids are made up of monomers of nucleotides joined together to form the nucleic acids. Each nucleotide has sugar, a nitrogenous base, and phosphate in the structure that joined to form a helix structure.
Thus, the correct answer is - option 2.
Answer:
Explanation:
2
PLEASE HELP!!!!!!!!!!!!!!!!!!!! WHAT IS THE CONTROL GROUP FOR THIS
Hypothesis:
In this section, please include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
If predators are increased, then the cricket frog population will (increase/decrease/stay the same) over the span of five years.
If pollution is increased, then the cricket frog population will (increase/decrease/stay the same) over the span of five years.
If the amount of food available is increased, then the cricket frog population will (increase/decrease/stay the same) over the span of five years.
Procedure:
The procedures are listed in your virtual lab. You do not need to repeat them here. Please be sure to identify the test variable (independent variable), outcome variable (dependent variable), and control group for this experiment.
Reminder: The test variable is the item that is changing in this investigation. The outcome variable is the item that you are measuring in this investigation. The control group is the group in the experiment where the factors being tested are not applied. It allows scientists to set a baseline to compare the experimental groups that do have factors applied to them.
Test variable (independent variable): Limiting factor- Food, Pollution, Predators.
Outcome variable (dependent variable): Cricket Frog (population)
Control group:
Answer:
decrease
decrease
increase
control group is the cricket frog population
Explanation:
Its the group that is being measured.
Answer:
Limiting factor- Food, Pollution, Predators.
Outcome variable (dependent variable): Cricket Frog (population)
Control group: Cricket Frogs in the Florida Everglades without changes in or manipulation of the population.
I Hope It Help's! :)
Which of the following statements best shows why it would be winter in the
southern hemisphere and summer in the northern hemisphere?
Answer:
If it says something about the Earths axis then that would be the answer
Explanation:
The Earth is on a bit of a tilt.
please help me I’ll give you brainliest Please tell me please help me please help please help please help please help me please help me
Answer:
1: Combustion 2:Atoms 3: Fission 4: Nucleus 5: energy 6: Photosynthesis 7: Solar Energy
Explanation:
Round to the nearest tenth. 7.514
Answer:7.5
Explanation: The 5 is in the tenths place and the number in the hundredths place is less than 5 which means you drop it and you’re left with 7.5
why are there mosquitos
Answer:
To balance the food chain.
Explanation:
Mosquitoes actually play a big part in the food chain.. Animals such as frogs eat them, and what if other foods that frogs eat go out(Not saying it's gonna happen, its just a what-if)? They will have to resort to the mosquitoes. And if those were gone, the frogs would go out. Then a certain number of animals maybe maybe not would have to develop a new diet due to the extinction of frogs.
Answer:
i have no clue. i hate mosquitos.
What reaction occurs in the stroma of the chloroplast?
Group of answer choices
Krebs Cycle
Light Independent Reactions
Light Dependent Reactions
Glycolysis
Answer:
Light Independent Reactions
Explanation:
The stroma is the fluid-filled space of chloroplasts the thylakoids. It contains all the enzymes required for light-independent reactions of photosynthesis and is, therefore, the site of the Calvin cycle.
The Krebs cycle and glycolysis are stages of cellular respiration and occur in the mitochondria.
The light-dependent reactions occur in the thylakoids
Which of the following characteristics is common to both bacteria and viruses?
Group of answer choices
can be killed using antibiotics
contains genetic material
has a cell wall
has a cell membrane
can be killed using antibiotics
Explanation:
Because kill them