Answer:
A PH scale is used to measure the acidity of a solution
Explanation:
any structure inside a cell that performs a specialized function
A. nucleus
B. mitochondrion
C. chloroplast
D. organelle
E. cell wall
Answer:
chlorplast
Explanation:
Answer:
d. organelle
Explanation:
An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body.
please help!!!
A carrot piece is placed in a sugar solution of 0.2 M sucrose. The carrot lost 5% of its mass after sitting in the solution for 1 hour. *
The carrot must have been hypertonic to the solution.
The carrot must have a sugar concentration higher than 0.2 M
The carrot lost mass because the sugar left the carrot for the solution
The carrot lost mass because water left the carrot for the hypertonic solution outside.
Answer:
a carrot is orange thats all you have to know
Explanation:
thanks for the points :)
Volcanos extend so deep below earth’s surface that they reach down to the next layer. Which is the second layer of earth?
Answer:
mantle
Explanation:
The mantle is very thick: 1800 miles deep. The mantle is a little bit like a sandwich. On the top and bottom parts of the mantle, the rock doesn’t move very much. In the middle of the mantle is the asthenosphere. This part of the mantle moves around fairly slowly. This moving mantle layer pushes the earth’s plates around.
Summarize sexual reproduction in plants. I need help please!!
Answer:
Plant reproduction is the development of new offspring that can be achieved through sexual or asexual reproduction in plants. By the fusion of gametes, sexual reproduction creates embryos, resulting in offspring genetically distinct from the parent or parents. Asexual reproduction creates new individuals, genetically similar to the parent plants, without the fusion of gametes.
Explanation:
Which of the following happens to chromosomes during prophase?
A
They move to opposite sides of the cell.
B
They become centrioles.
C
They condense.
D
They disappear.
What are some of the resources organisms compete for?
Is The sun warms up the swimming pool conduction or radiation
Answer:
Given that water is clear and colorless, it seems that it will absorb very little direct radiation from the sun. The sides and the bottom of the pool can however heat it by conduction.
Explanation:
hope it help and if it doesnt sorry;)
Answer:radiation
Explanation:It’s radiation because when you conduct heat to something it mostly to an object and that is creating energy.Conduction is also mostly used with a object like wood doesn’t conduct heat well but metal does.
12. Compared to the parent cell, a daughter cell produced as a result of binary fission?
(1) has one-half as many chromosomes
(2) has twice as many chromosomes
(3) is the same size, but has fewer chromosomes
(4) is smaller, but has the same number of chromosomes
Answer:
option 4 is correct.
Is smaller but have the same number of chromosomes.
Explanation:
In binary fission daughter cell have same number of chromosome but smaller in size as compared to parent cell.
What is the significant difference between a park and a nature reserve?
A) A park is for people; a nature reserve is for resource conservation.
B) A park is for animals; a nature reserve is for natural-landmark conservation.
C) A park is found in a city; a nature reserve is created on undeveloped land.
D) A park is considered an ecological island; a nature reserve cannot be considered an ecological island.
E) A park is managed by private organizations; a nature reserve is managed by the government.
The significant difference between a park and a nature reserve is that a park is considered an ecological island; a nature reserve cannot be considered an ecological island (option D)
What are parks and nature reserves?A park is an area of land set aside for environment preservation or recreation. A park can be created near a city or town, enclosed and kept for ornament and recreation.
A nature reserve, on the other hand, is an area of land managed to conserve wildlife or plant habitat or other natural features.
Therefore, the significant difference between a park and a nature reserve is that a park is considered an ecological island; a nature reserve cannot be considered an ecological island.
Learn more about nature reserve at: https://brainly.com/question/27916995
#SPJ1
In pea plants, Tis for tall plant and t for short, Tis dominant overt, What is the percentage to have tall plants if we cross Tt * Tt*
Answer:75%
Explanation:
Which activity demonstrates chemical weathering? A grinding of talc into a powder
B freezing of water in the cracks of a sandstone sidewalk
C dissolving of limestone by acid rain
D abrasion of a stream bed by tumbling rocks
8. The central Dogma of Biology states:
a. DNA proteins ORNA
b. RNA O Proteins DNA
c. DNA RNA proteins
d. DNAO RNA mRNA
Answer:
Answer is C.
Explanation:
I hope it's helpful!
A cladogram a diagram that shows the relationship among organisms according to A common ancestor and specific characteristics. Farther away an organism is from the point of origin, the less closely related to that common ancestor it is. Which answer choice below highlighted sections of the cladogram of organisms that are not a common grouping?
Answers : a
Explanation:
I really don’t know
6. One revolution of Earth around the sun takes
one day.
one week.
one month.
one year.
Answer:
1 year
Explanation:
it takes 365 days estimate to do so.
If the biodiversity of an ecosystem is increased, the ecosystem will become __________.
Explain the role of living things such as yourself in the nitrogen cycle
Simple answer please
Answer:
Role of organisms in the nitrogen cycle:
Bacteria play a central role: Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates. Bacteria of decay, which convert decaying nitrogen waste to ammonia. Nitrifying bacteria, which convert ammonia to nitrates/nitrites.
Explanation:
I THINK THIS IS SHORT AND EASY
Plants use nitrates to create proteins. Animals eat plants for protein. Humans add nitrogen-rich fertilizers and manure to the cycle.
What is nitrogen cycle?The process by which nitrogen is changed into a variety of different chemical forms as it cycles through different ecosystems, including the atmosphere, land, and ocean, is known as the nitrogen cycle, which is a biogeochemical cycle. Both biological and physical methods can be used to complete the transformation of nitrogen.
In order to synthesize proteins, plants must first take up nitrates from the surrounding soil. Plant material is digested by animals, which then contributes to the formation of animal protein. Both the addition of nitrogen-rich fertilizers to the soil and the utilization of manure are examples of how humans make a contribution to the cycle.
Learn more about nitrogen cycle, here:
https://brainly.com/question/1615727
#SPJ5
4. A student described a wetland ecosystem in the chart below.
Wetland Ecosystem
Abiotic Factors
Description
Water Depth
Shallow
Salinity
Fresh water
Soil
Very wet mud
Sunlight
Sunlight filtered through
trees
What type of ecosystem was the student most likely describing?
A. Marsh
B. Swamp
Forest
D. Estuary
Answer:
Boys preparing for the chinese civil sevice examination had to memorize Confusian texts before learning what they meant. Teaching now downplays such memorization. Is there any educational value for students to memorize poems, texts, etc?
hdbdbhd
How are unknown minerals identified?
Answer:
Minerals can be identified by their physical characteristics. The physical properties of minerals are related to their chemical composition and bonding. Some characteristics, such as a mineral's hardness, are more useful for mineral identification.
Explanation:
Answer:
1. Hardness, the ability to resist being scratched—or hardness—is one of the most useful properties for identifying minerals. (ex. diamond)
2. Luster, luster is how a mineral reflects light.
3. Color, one of the most obvious properties of a mineral is color. (ex. Red- Ruby, Green- Jade, Blue- Opal)
4. Streak, the color of a mineral in its powdered form. It is usually obtained by rubbing the mineral on a hard, white surface, such as a tile of un-glazed porcelain, so as to yield a line, or streak, of fine powder. (Kinda like rubbing chalk on a concrete floor to get the color)
5. Specific Gravity, the weight (How heavy is it?)
Hope this helps! Please hit the brainliest (golden crown)
-Thanks!
List the ways how you can help make your commumity safe and healthy.
1.
2.
3.
4.
5.
To see a general view of a microscope slide, use _____ power. If you need to see a more specific and detailed view, use _____ power.
Answer:
Low; high.
Explanation:
A microscope can be defined as an optical device that is typically used to make an enlarged (magnified) image of a minute (small) object and as such reveals all the little information about the object that cannot be seen by the natural human eye.
Basically, a microscope is used for viewing very little objects, microorganisms and cells found in living organisms such as humans, animals and plants.
The interchangeable lenses found in a microscope which are close to the specimen being observed are called objective lenses. These objective lenses comprises of low power objective and high power objective. To see a general view of a microscope slide, use low power. If you need to see a more specific and detailed view, use high power.
Hence, the field of view (FOV) is largely dependent on the objective lens being used, it is largest (general view) for low power and smallest (specific and detailed view) for high power.
Hemophilia is a sex-linked recessive trait. A phenotypically normal woman has phenotypically normal parents. However, she has a hemophiliac brother. What are the genotypes of her parents? What are her chances of being a carrier for hemophilia? If she is a carrier and marries a male with hemophilia, what is the chance of a child being a hemophiliac?
Answer:
A. parents: Hh and Hh
B. chances of being a carrier: 50%
C. 50%
Explanation:
A. Since hemophilia is a recessive trait, both parents must carry the recessive alelle for it to show through in the child. However, we know both of them are phenotypically normal, meaning a dominant trait (not hemophiliac, H) is masking the recessive trait (hemophiliac, h)
B. The options the woman has when you create a punnet square with her parents genotypes are HH (doesn't have any hemophilia, because hemophilia is recessive, so represented with a lower case h) Hh (there is twice the likeliness she is an Hh since it occurs two times when you combine her parents genotypes. Hh means she is a carrier, but does not have the trait) and hh (meaning she definitely has it). So there is four options, two of which mean carrier, meaning she has a 50% chance of being a carrier.
C. genotypes of the parents:
mom: Hh
dad: hh
when you create their punnet square, you will get two occurrences of Hh and two occurrences of hh. Remember that hh means hemophilia. This means the child has a 50% chance of having hemophilia.
how do nocturnal animals see better in the dark than we can?
Nocturnal animals possess a pathway through which rods connect to the same “dark” circuits used by cones, which allows them better perception of edges, movement, and silhouettes in dim light. Even the nuclei of the rod cells are adapted for night vision. ... One can only guess at what nocturnal animals see.
The first time you get an infection, your immune system responds
the same infection again, your immune system responds
If you become re-infected with
A. quickly, slowly
B. in 3 stages, in 1 stage
C. in 2 stages, in 3 stages
D. slowly, quickly
what is one thing you would see in a molecule that you would not see in a compound
The one thing that you would see in a molecule that you would not see in a compound is the molecular bonds.
What is a Molecule?A Molecule may be defined as the smallest particle of a substance that has all of the physical and chemical properties of that substance. Molecules are made up of one or more atoms. These atoms are held together by attractive forces known as chemical bonds.
According to the context of this question, a compound depends on how many different kinds of elements make it up. Compounds contain two or more different elements. Water is a molecule because it contains molecular bonds. While a molecule has molecular bonds that togetherly held atoms in it.
Therefore, the one thing that you would see in a molecule that you would not see in a compound is the molecular bonds.
To learn more about Molecular bonds, refer to the link:
https://brainly.com/question/23169967
#SPJ2
What role have nitrates and phosphates played in damaging Muddy Creek?
Answer:
Nitrates and phosphates lead to eutrophication and anoxia in the creek which caused aquatic animals to die and damaged the creek.
Explanation:
Nitrates (NO3-) are chemical compounds that contain nitrogen and oxygen molecules. They are salts that are commonly found in fertilizers and are soluble in water. Phosphates are also compounds that are used in agricultural processes.
Nitrates and phosphate found in water are usually from plants that have been washed off by rain water and also from vehicles' exhaust.
When there are abnormally high levels of nitrates and phosphates in water, it becomes difficult for aquatic animals to survive. In bodies of water, the nitrates and phosphates become sources of food to algae and other plants, this causes them to become over stimulated, and lead to Eutrophication (a high concentration of nutrients) and Anoxia (lack of oxygen).
This causes the fishes to run out of oxygen and die. Then the water begins to change color (milky white or green), give off an offensive odor and gradually turns into a swamp and eventually a meadow
Each new cell formed after cytokinesis"
a. has one-half the original DNA
b. has two copies of the original DNA
c. has one exact copy of the original DNA
d. has entirely different DNA from the original DNA?
Answer:
c. has one exact copy of the original
Explanation:
What is the correct term for organisms that consume other organisms in order to gain energy and are also known as consumers?
a. heterotrophs
b.autotrophs
c. decomposers
d. detritivores
Answer:
Heterotrophs
Explanation:
They eat other plants or animals for energy
Which word best describes the extent to which scientists have identified fungi species?
Answer:
does it give you options like a multiple choice or just a word form your head
examples of terrestial plants
Las plantas terrestres o embriófitas son aquellas capaces de crecer y desarrollarse sobre la tierra. Son un clado o grupo monofilético descendiente de algas verdes y otras especies acuáticas, pero adaptado a la vida fuera del agua. Algunas embriófitas pueden ser semiacuáticas.
Terrestrial plants or embryophytes are those capable of growing and developing on land. They are a clade or monophyletic group descended from green algae and other aquatic species, but ada
would you consider alcohol as food nutrient? explain.
Answer:
hello, hope it helps
Explanation:
Alcohol would not fall under the category of an essential nutrient because not having it in your diet does not lead to any sort of deficiency. Alcoholic beverages primarily consist of water, alcohol (ethanol), and different amounts of sugar.
mark me brainliest