Answer:
The alcohol will float
Explanation:
Alcohol is less dense than water, compared to Glycerin which is more dense than water, (Water's density is 1.0)
CLAIM
Our claim from this prompt is The brown substance is
because
and
You need to fill in the three blank lines above completing the
sentence.
Explanation:
you didn't list the sentences?? or the 3 blanks completing sentances????
Which is a cause of chemical weathering
A.gravity
B.acid
C.sunlight
D.wind
Answer:
B. Acid
Explanation:
Acid is the cause of chemical weathering because chemical weathering only occurs when water or whatever mixes with the water is slightly acidic, i.e. salt deposits on the ground mixing with run-off rain water and wearing away at the surrounding environment. Acid rain is also the perfect example of this.
A person filters 720 millimoles of K in a day and secretes 42 millimoles. She excretes 75 millimoles in her urine. How much is K is reabsorbed, in millimoles
Answer:
687millimoles
Explanation:
To calculate the amount of K reabsorbed in the kidney of an individual, we say:
Amount reabsorbed = Amount filtered + Amount secreted - Amount excreted
Based on the provided information,the respective amount of K is:
Amount filtered = 720 millimoles
Amount secreted = 42 millimoles
Amount excreted = 75 millimoles
Hence,
Amount reabsorbed = 720 + 42 - 75
Amount reabsorbed = 762 - 75
Amount of K reabsorbed = 687millimoles
2. Explain what happens during Osmosis? What type of transport is Osmosis? 3. What is a hypertonic solution? 4. What is a hypotonic solution? 5. What is an isotonic solution?
How many essential amino acids must be obtained from food?
a)8
b)20
c)12
d)26
Answer:
I believe the answer is c)12
Answer:
8 or 9
Explanation:
Look at the data in the table to the right. Then, answer the question that follows.
Based on the data in the table, what conclusion can you draw about the energy needs of different cells?
All cells need the same amount of energy.
Skin cells use more energy than muscle cells.
Cells that need more energy, like muscle cells, have more mitochondria.
Cells that have more mitochondria are larger than other types of cells.
A 2-column table has 4 rows. The first column is labeled Cell type with entries typical animal cell, skin, muscle, liver. The second column is labeled Number of mitochondria with entries 1,000 to 2,000, 200, greater-than 2,000, greater-than 2,000.
Answer:
The correct answer is: C.
Muscle cells require more energy for contraction than any other cell. Hence, option C is correct.
What are mitochondria?The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP).
It generates ATP through the process of oxidative phosphorylation. Small chromosomes found in mitochondria are found there. In most cases, mitochondria and consequently mitochondrial DNA are exclusively passed down from the mother.
Muscle cells contain a large number of mitochondria because they require more amount of energy for contraction. Hence, option C is correct.
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A classic example of osmosis in the classroom involves placing an egg in water or syrup. The egg first sits in vinegar until the shell is dissolved. Then, it is placed in a glass of either tap water or syrup. The mass of the egg is measured. The results are in the chart below. Use what you know about osmosis to explain why the egg increased in mass in the distilled water but decreased in mass in the corn syrup.
Answer:
Water is hypotonic compared to the inside of the egg; there are more solutes in the egg than in the water. Because water moves down its concentration gradient, it moves from the distilled water into the egg. It will continue to move in this direction until there is an equilibrium between the inside of the egg and the surrounding water. This increases the mass of the egg.
Corn syrup is hypertonic to the inside of the egg. Again, water moves down its concentration gradient from the inside of the egg to the solution. This will decrease the mass of the egg.
The reason solutes do not move, instead of water, in these situations is because the egg shell (assuming it is like a chicken egg) does not allow solutes to pass though it. Only water is able to move through the shell.
Explanation:
What is the difference between osmosis and diffusion?
A. Diffusion uses energy, but osmosis does not.
B. Osmosis is movement of proteins, and diffusion is movement of water.
C. Diffusion only occurs in animal cells, and osmosis only occurs in plant cells.
D. Osmosis is a kind of diffusion that involves movement of water.
Answer:
D. Osmosis is a kind of diffusion that involves movement of water
Answer: D. Osmosis is a kind of diffusion involving water movement.
Explanation:
I took the test
Energy for active transport comes from a cell’s _____________________? a. Golgi complex b. Nucleus c. Mitochondria d. Lysosomes
Energy for active transport comes from a cell’s Mitochondria. Thus, the correct option for this question is C.
What is Active transport?Active transport may be defined as a type of transport that occurs against the concentration gradient. This type of transport is generally mediated by carrier proteins. Metabolic energy is utilized in order to migrate ions or molecules against a concentration gradient.
This energy for facilitating the process of active transport is derived from mitochondria. This is because it is considered the powerhouse of the cell. The energy required for each metabolic event is provided by this cell organelle. This energy is generated by the process of cellular respiration.
Therefore, energy for active transport comes from a cell’s Mitochondria. Thus, the correct option for this question is C.
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Which one of the following is an example of qualitative data? *
Answer:
the is no pictures or equation I'm sorry can you try and upload it again I would love to help
Explanation:
upload
Bamboo is a type of grass. In the wild, pandas eat bamboo almost excdusively. For this reason, the availability of bamboo is a significant limiting factor on the panda population. Which statement describes how pandas could become extinct in the wild?
O A The bamboo population decreases so low that other limiting factors begin to affect the panda population.
OB. The bamboo population decreases so low that the carrying capacity for pandas becomes zero.
O C. The populations of bamboo and pandas follow a cyclical pattern of increasing and decreasing, until one of them becomes extinct
O D. The populations of bamboo and pandas both follw a pattern of exponential growth, and then both become extinct
Answer:
B
The bamboo population decreases so low that the carrying capacity for pandas becomes zero.
Answer:
I think it would be C
Explanation:
The populations of bamboo and pandas depend on each other
Which molecule most likely has the greatest amount of stored energy in a bonds?
Answer:
Explanation:
Pryophosphate bond
Which are the main points of the cell theory? Select all that apply.
Answer Options:
a. Cells are the basic units of structure and function in living things.
b. New cells are produced from existing cells.
c. All cells enclose their DNA within a nucleus.
d. All living things are made up of cells.
Answer:
a. Cells are the basic units of structure and function in living things.
b. New cells are produced from existing cells.
d. All living things are made up of cells.
Explanation:
Cell theory states that cell living organisms are composed of at least one cell, which are the basic unit of life.
Cells are always produced from other living cells, and cannot spontaneously generate.
However, not all cells enclose their DNA within a nucleus, prokaryotic organisms (bacteria) do not possess a nucleus but still have DNA
arrange the increasing levels of organizations
a) organelle, cell, biomolecule
b) biomolecule, cell, organelle
c) cell, organelle, biomolecule
d) biomolecule, organelle, cell
Answer:
A
Explanation:
a) organelle, cell, biomolecule
Answer:
i think its D
Explanation:
Biolomecules, organelle, cell.
Do leopard geckos die from eating salamanders?
A no
b yes
C they only get sick
PLS ANSWER IF YOU ARE PRO
By the way I don’t have a gecko this is just for school
But it would help if a reptile pro could answer this.
Answer: Well I am not a Pro on leopard geckos, but I've have a Friend who is and they eat anything that wiggles I would say it might not die since the only things that would kill him is if he eats fireflies, lightning bugs. So I will say a salamander is fine.
Question 9 of 10
A pot of water is heated on an electric stove top and begins to boil Which
two transfers of thermal energy involved in this system are examples of
conduction?
O From the air above the pot as currents form
B. In the water as water currents develop
From the pot to the water
From the burner to the bottom of the pot
SUBMIT
The two transfers of thermal energy involved in this system are examples of conduction that may include the burner to the bottom of the pot and from the pot to the water. Thus, the correct options for this question are C and D.
What is Conduction?Conduction may be defined as the process through which heat energy is typically transmitted through collisions between neighboring atoms or molecules. The process of conduction occurs more readily in solids and liquids, where the particles are closer together than in gases, where particles are further apart.
The mechanism through which heat is transferred from the hot part to the cold part of the body through the transfer of energy from one particle to another particle of the body without the actual movement of the particles from their equilibrium positions is called conduction.
Therefore, the correct options for this question are C and D.
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The process of removing wastes from the cell is known as
A.)endocytosis
B.)exocytosis
C.) pump
D.)channel
Which is a problem associated with a declining population size?
scarce food supplies
limited health care
an aging population
Answer:
scarce food suppies and health care
Explanation:
pls help i’m failing so ill give a brainiest n give likes from my other accs !!!
13) A polar bear swims in the ocean and grabs a fish to eat. Which one of the following is true of the polar
bcar?
A) The polar bear is a carnivore that is a predator of fish.
B) The polar bear is an herbivore that is a predator of fish.
C) The polar bear is an herbivore that is prey to fish.
D) The polar bear is a carnivore that is prey to fish.
16) how would an increase in predators likely affect a given prey population ?
A) The growth rate would decrease.
B) The growth rate would increase
C) birth rates would exceed death rates
D) The population would remain unchanged
19) Which one of the following statements best defines the role of a scavenger in the environment?
A) A scavenger gets energy by eating the dead organisms it finds.
B) A scavenger gets energy by breaking down organic wastes.
C) A scavenger gets energy by absorbing sunlight and producing glucose.
D) A scavenger gets energy by hunting and killing its prey.
20) Which one of the following roles is most similar to the role of a scavenger in an ecosystem?
A) Decomposer
B) Producer
C) Parasite
D) Herbivore
21) A vulture swoops down and grabs a dead mouse that it later eats. What is the vulture's ecological niche in
this situation?
A) Predator
B) Decomposer
C) Producer
D) None of the above
22) A type of relationship in which two species live in close association for long periods is known as
A) competition
B) symbiosis.
C) opportunism.
D) cohabitation
Answer:
13 is A
16 is A
19 is B
20 is A
21 is A
Based on their scientific name, you know that African bush elephants, or Loxodonta africana, and African forest elephants, or Loxodonta cyclotis, belong to the same
Answer:
they belong to the same Species
Explanation:
Loxodonta must mean "Elephant" because both scientific names are the scientific versions of elephants. This must mean that the answer is that they belong to the same species.
Answer:
To the same species
Explanation:
it just is
A type of large mammal living in herds develops many adaptations over a
period of time. These include ability to drink a lot of water and go without
water for long periods of time and fur on the top of their body.
What can we say about the living conditions of these mammals?
Select one
They are grass eaters who must travel long distances to find food.
They are hunters that rely on group tactics to get their prey.
They live in a sunny environment where water is scarce.
They live in a cold environment with lots of trees but lite grass.
Which conditions are possible reasons for declining genetic diversity of a species.
Answer:
Explanation:
loss of habitat
inbreeding
environmental changes
widespread distribution
What would a virus do if it never connected with a living cell?
Answer: It would not be able to reproduce.
Explanation: A virus tricks cells into making copied of a virus, instead of copies of white and red blood cells. They reproduce viruses which go on, and do the same process. If the virus could not connect to the cell, it would not be able to reproduce.
Hope this helps!
What Is Behavior?
Behavior is a response to stimuli in the environment. Many animals use antipredatory
behavior to scare or startle
predators. This will either cause
the predator to leave, or give
the prey time to escape.
The spiny flower mantis on the left is naturally camouflaged as a flower. The one on the right
has its wings spread and
eyespots visible.
1. Describe how the behavior of
this insect could help it avoid
predation.
PLEASE HELPPP ASAPPP
Answer:
Many plants and animals use repellent chemicals to deter predation. Millipedes secrete hydrocyanic acid when disturbed.
Some of the water that falls as rain evaporates back into the atmosphere. What happens to the water molecules during this process?
Answer:
The water molecules separate into oxygen and hydrogen molecules which allows them to transfer back up into the atmosphere in their individual state.
What are three reasons that organisms interact?
Answer:
mating, competition for food resources, defense, and assertion of dominance.
Explanation:
The three reasons that organisms interact are
For the purpose of matingCompetition for food resourcesDefenseThe above mentioned reasons are responsible for interaction of organisms.
What are the reasons for interaction of organisms?There are several reasons for interaction of organism and the most important reason is for survival.
Organisms also interact for the process of reproduction due to which they reproduce their own young ones.
Organisms also interact for the purpose of food and other essential requirements to survive.
Organisms are capable of growth,differentiation,reproduction,maintenance and response to stimuli.
Therefore,The three reasons that organisms interact are
For the purpose of matingCompetition for food resourcesDefenseThe above mentioned reasons are responsible for interaction of organisms.
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___ is the purpose of your experiment; question or problem that you want to investigate.
a
Problem
b
Hypothesis
c
Solution
d
Conclusion
Answer:
B
Explanation:
The purpose of an experiment is to test the hypothesis. Hypotheses are formed based on observations, and an experiment is designed to see if the hypothesis is right.
How are Gymnosperm and Angiosperm plants different?
Answer:
Hey! :D
Explanation:
The gymnosperms, also known as Acrogymnospermae, are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. The term "gymnosperm" comes from the composite word in Greek: γυμνόσπερμος, literally meaning "naked seeds". The name is based on the unenclosed condition of their seeds. The non-encased condition of their seeds contrasts with the seeds and ovules of flowering plants, which are enclosed within an ovary. Gymnosperm seeds develop either on the surface of scales or leaves, which are often modified to form cones, or solitary as in yew, Torreya, Ginkgo.
hope this helps
The Burgess Shale biota is significant because it contains the: a. conodont animal b. fossils of rare marine plants c. earliest known benthonic community d. first shelled animals e. carbonized impressions of many extinct soft-bodied animals
Answer: Option E.
carbonized impressions of many extinct soft-bodied animals
Explanation:
The Burgesss shale biota is significant because it contains the carbonized impressions of many extinct soft-bodied animals because Burgess shake biota indicate best example and famous fossil records that contain soft bodied organisms with carbon impression . This fossil contain soft tissues fauna and floral and not mineralised structures which is not present in any other fossils. priapulid and annelid worms that are found in Burgess shale biota
Match the monomer to the correct polymer. (Link one from the top list to one from the bottom list, until each one has a link to one from the other.)
--
1a. polypeptide/protein
1b. polysaccharide
1c. nucleic acid
1d. lipid
--
2a. monosaccharide
2b. nucleotide
2c. fatty acid
2d. nucleotide
Answer:
Polymer Monomer
1. Polypeptide/protein -----------------------→ Amino acid
2. Polysaccharide ------------------------------→ Monosaccharide
3. Nucleic acid -----------------------------------→ Nucleotide
4. Lipid ----------------------------------------------→ Fatty acid
Explanation:
Monomers are simple molecules that when joined together and form chains become polymers, a process called polymerization, which is mediated by polymerase enzymes.
Monomers are simple molecules that when joined together and form chains become polymers, a process called polymerization, which is mediated by polymerase enzymes.
Peptides and proteins are formed by the addition of specific amino acid sequences. Polysaccharides, or complex sugars, are formed by the addition of monosaccharides, such as glucose. A nucleic acid, such as DNA or RNA, consists of chains or strands that are formed by nucleotide sequences. Lipids are the polymerized form of fatty acids.