Answer:
To study these moths, Dr. Kettlewell placed light and dark moths on the trunks of trees where he could observe them. The same birds would find the dark moth twice as often if the bark on the tree was light. This supported the idea that dark moths had a survival advantage in a dark forest.
which of the following will dissolve in water
a.oil
b.salt
c.alcohol
d.sand
Answer:
Salt will dissolve in water
Answer:
salt will dissolve
Explanation:
so if you put salt in water you notice the water changeing and its desloving just like how laxatives work like if you put powder in and stir and lay it down for couple mins it's clear and dissolved
helpppp!!!!!! i need this answer now
Why is a solution not a pure substance?
A. The solute and solvent cannot be separated.
B. It is made up of one substance.
C. It is a mixture between a solute and solvent.
D. It is made up of two substances that are chemically combined.
Answer: C. It is a mixture between a solute and solvent.
Hope this helped!
Answer:A
Explanation:
Which of the following smaller reservoirs of freshwater are missing from the diagram?
А
Fossil fuels
B
Rocks
С
Ice caps
D
Algae
Answer:
ice caps
Explanation:
When it is high tide on one side of the earth, the opposite side of the earth experiences
A low tide.
B. high tide.
C. flood tide.
D. ebb tide.
E. red tide.
Choose one carbon sink and explain how the carbon gets out of it. *
can someone please help me I need to turn it in before tomorrow
Answer:
1 is Both
2 is both
3 is Eukaryotic only
4 is Eukaryotic only
Explanation:
I suggest watching this amoeba sisters video for more insight, the title is "Prokaryotic vs Eukaryotic cells"
Answer:
eukaryotic cells: has cytoplasm, has a nucleus, has organelles
prokaryotic cells: has a cell membrane, contains cytoplasm
Explanation:
I really need help quickly!! will mark brainliest if it's correct. I appreciate it :)
What is a source of stem cells that has the characteristics of self-renewal and limited differentiation?
Embryonic cell
Somatic cell
Amniotic fluid
Heart muscle
Answer:
In the explanation. :)
Explanation:
It's embryonic cells. Embryonic stem cells (ESCs) are stem cells derived from the undifferentiated inner mass cells of a human embryo. Embryonic stem cells are pluripotent, meaning they are able to grow (i.e. differentiate) into all derivatives of the three primary germ layers: ectoderm, endoderm and mesoderm.
Hope this helps. Have a great day!
Answer:
a
Explanation:
Cementation is part of the process of
Answer:
The cementation process is an obsolete technology for making steel by carburization of iron. Unlike modern steelmaking, it increased the amount of carbon in the iron. It was apparently developed before the 17th century.
Answer:
One of these, depends on which subject you're doing.
the binding together of particles or other things by cement.
2.
a process of altering a metal by heating it in contact with a powdered solid, especially a former method of making steel by heating iron in contact with charcoal.
Identify the two main spheres interacting in this photo.
(2 points)
Geosphere
Cryosphere
Biosphere
Cryosphere
Atmosphere
Think Critically. Compare and contrast point source pollution and nonpoint source pollution.
Answer:
Point-source pollution is easy to identify. As the name suggests, it comes from a single place. Nonpoint-source pollution is harder to identify and harder to address. It is pollution that comes from many places, all at once.
Answer:
Point source pollution as any contaminant that enters the environment from an easily identified and confined place. ... Nonpoint-source pollution is the opposite of point-source pollution, with pollutants released in a wide area.
Explain the meaning of excretion
Do all eukaryotes have a cell wall?
yes
No
Answer:
how do you say with only a few exceptions all prokaryotes have thick rigid cell walls that give them their shape among the eukaryotes some protist and all fungi and plants have cell walls defined out
Explanation:
step-by-step explanation step-by-step explanation hopefully this was right so I'm going to say that's a yes
An engineer made a model of a ship to help him think about how it works ha made sure that some characteristics of the ship were accurately represented but he did not include all of the ships characteristics in his model is it okay that he ignored some of the ships characteristics
Answer:
Yes it is ok
Explanation:
This usually depends on what the engineer is trying to accomplish or learn. For example, if the engineer is simply trying to understand how the architecture floats or cuts through the water then he does not need to model the engines or other unnecessary characteristics. On the other hand, if the engineer wants to understand how the engine provides power to the entire ship then he would need to model the engine and all the connected parts but not the outer exterior of the ship. Therefore, it is ok that he did not model the ship completely as long as it provides the information needed.
Look at the protons below. Which could be it's function?
A. storing energy
B. insulating the body
C. forming muscle fiber
D. directing the growth of cells
Answer:
It is c
Explanation:
C forming muscle fiber
Answer: correct answer is c
Explanation:
⚠️PLEASE CHECL OUT BOTH ANSWER EITHER ONE PLEASEEE OR BOTH ;) ⚠️
Answer:
for the first question the answer i think would be density. i'm sorry but i can't answer the second question. i hope i helped.
Explanation:
A person who is optimistic:
O A. will make more money.
O B. believes that others control his or her fate. .
O C. will have successful relationships.
O D. will be healthier.
Answer:A
Explanation:
because optimistic people are confident about their future
Optimistic people believe that they will make more money. Therefore, option A is correct.
What is an optimistic person?A person who is very confident and hopeful about his future and hopes for good outcomes is known as an optimistic person. They have faith in themselves and believe that they have the skills to make everything good. Optimists are happier than pessimists.
An optimistic person sees the positive side of everything. They believe their faith is in their own hands, and no one can control it. Their point of view is always positive. There are two types of optimistic people and that are comparative optimism and nihilistic optimism.
They believe that they will be successful and make more money in the future. Therefore, option A is correct.
Learn more about optimistic people, here:
https://brainly.com/question/14920129
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A function of chloroplast in plant cells is to:
Answer:
In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants to have rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change size.
Explanation:
What is a cell theory
which TWO do you think have the FEWEST differences in amino acid sequences?Defend your response.
Horse, Cow, Donkey
Answer:
horse and donkey.
Explanation:
their bodies are similar. they also sound the same
Of the mentioned options, horse and donkey will have the fewest differences in the sequences of amino acids.
What is the similarity between horse and donkey?Both the horses and donkeys look very similar. Both the species belong the genus Equus. Both the species exhibit various physical similarities. Both are hoofed mammals, and four-legged. They both have large ears, long faces and long backs with tails at the terminal of them.
The ears and eyes in both the species are aligned in similar locations, and they both possess manes running through the tops of their necks. Both the species are social creatures. However, there is a slight variation on the genetic level, that is, donkeys have 62, while horses possess 64 chromosomes. When both the species are crossed, the produce a sterile mule having 63 chromosomes.
Thus, based on the similarities between both the species, it can be considered that there is a fewest differences in the amino acid sequences of horses and donkeys.
Find out more information about the similarity in horses and donkeys here:
https://brainly.com/question/2817151
How does the CONTROL GROUP setup in an experiment differ from the other setups in the same experiment?
Answer:
the control is constant and doesnt change where as the other variables would be changing
Explanation:
Which part of a city can be compared to the Lysosome in a cell?
a. Power Plant
b. Automobile Factory
c. Post Office
d. Waste Management
Answer:
d. Waste Management
Explanation:
which characteristic of life is the most important in determining which item (plant or car) is alive
Answer:
Growth, excretion, energy, reproduce
Explanation:
A plant has the ability to makes it own food via photosynthesis unlike cars (they arent living because they don't have growth and reproduce)
The table below provides data about four cells. Other conditions being equal, which cell is predicted to be the most efficient in exchanging oxygen with the environment by diffusion? * Cell Type Surface Area Volume SAV A 64 32 2:1 B 32 4 8:1 с 16 4 4 4 1:1 Cell A O Cell B O Cell C O Cell D
Answer:
164441:1???
i think that's the answer but i'm not quite sure it's so confusing can you help me understand so i CAN help you! ( and when i say i will i will !!!!!!)
Explanation:
Explain what is elimination
Answer:
1. the complete removal or destruction of something.
2.the expulsion of waste matter from the body.
Explanation:
I googled it
Answer:
Elimination is when something is canceled or taken out of consideration.
Explanation:
Hope this Helps!
How does the structure of the skull help prevent injury to the brain?
A)The elastic bones of the skull help the skull reshape itself to prevent breakage.
B)The fused bones of the skull lessen the impact on the brain.
C)The spongy bones of the skull cause the ball to bounce off the head.
D)The joints in the skull move to prevent the football from hitting the head.
Answer:
B- The fused bones of the skull lessen the impact on the brain.
Explanation:
The brain is protected by the bones of the skull and by a covering of three thin membranes called meninges. The brain is also cushioned and protected by cerebrospinal fluid. This watery fluid is produced by special cells in the four hollow spaces in the brain, called ventricles.
Hope this helps!
The fused bones of the skull lessen the impact on the brain and help prevent injury to the brain.
What is the structure and function of the skull?
The skull consists of 22 bones in most adult specimens, and these bones come together via cranial sutures. The function of the skull is both structurally supportive and protective. The skull will harden and fuse through development to protect its inner contents: the cerebrum, cerebellum, brainstem, and orbits.
Does the cranium protect the brain?
Cranium. The eight bones that protect the brain are called the cranium. The front bone forms the forehead. Two parietal bones form the upper sides of the skull, while two temporal bones from the lower sides.
Learn more about the cranium here: https://brainly.com/question/1247675
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The non-living parts of an organism's habitat are called...
Answer:
Abiotic Factors
Explanation:
These are the nonliving parts of an organism's habitat.
Which macromolecules were present in each of the samples? Potato: Egg White: Milk: Unknown:
Explanation:
potato: starch ,polysaccharide, carbohydrates
egg white : lipid
milk: lactose, disccharide,carbohydrates
Answer:
Potato means starch
Explanation:
What trend do you notice about proteins and fats in the graph above
that proteins are more healthier than fats
Answer:
proteins provide higher blood sugar levels than lipids(fats)
Explanation:
What three things create surface currents?
Answer:
Global Winds, blows across the earth's surface creating surface currents. Different winds cause the currents to flow in different directions.The Coriolis Effect, the apparent curving of moving objects from a straight path caused by the rotation of the earth.Continental Deflections, is where the surface currents meet continents causing them to change directions.Explanation:
I hope this is the answer you were looking for.
a potential, testable answer to a scientific question is called a(n) ____ (blank)
Answer:
Hypothesis.
Explanation:
Also known as a theory or theorum.