Answer:
d
Explanation:
a theory is similar to a hypothesis except has backed up evidence already
Answer:
A
Explanation:
A is always true while the others are sometimes true, C is true in our galaxy, but not others. B is opinionated, different humming birds may like different colors. D is not considering other variables that could effect that situation, such as weight, height, blood pressure, etc. Therefore, A is correct.
Hydras are animals related to coral and jellyfish. Hydras can reproduce sexually or asexually. Why would hydras avoid reproducing asexually when conditions are difficult?
1. The high genetic diversity could mean that all of the hydras die, depending on the situation.
2. The lack of genetic diversity could mean that all of the hydras die, depending on the situation.
3. Reproducing more slowly would be a good way to take advantage of plentiful resources.
4. Reproducing more rapidly would be a good way to take advantage of plentiful resources.
Answer: 3. Reproducing more slowly would be a good way to take advantage of plentiful resources.
Explanation:
Hydra reproduce by both sexual and asexual modes of reproduction. In the case of asexual reproduction the bud develops on the parent body and derives nutrition from parent body, matures and finally get detached from the parent body. During asexual reproduction many buds will develop and live as an individual organism this will reduce the availability of resources like habitat, food, and others. Thus if the organism reproduces slowly then it will take advantages of many resources without experiencing the scarcity of resources.
Eugene describes the physical property of a material as “sweet and floral.” What physical property of the material is Eugene most likely observing?
boiling point
shape
hardness
odor
Answer:
Odor
Explanation:
When you smell something, you are smelling it's odor. The words "sweet" and "floral" are most likely referring to the odor of a flower.
Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an event that results from mitosis but NOT meiosis?
A) replication of genetic cellular material
B) four daughter cells that are different from each parent cell
C) daughter cells that are identical to the parent cell
D) two stages of cell division
Answer:
C. Daughter cells that are identical to the parent.
Explanation:
According to the question, Mitosis and meiosis are processes involved in cellular reproduction is two stages of cell division.
What is difference between mitosis and meiosis?Mitosis involves the division of body cells, while meiosis involves the division of germ cells. The division of a cell occurs once in mitosis but twice in meiosis.
Thus, option "D" is correct.
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Check Your Understanding
1. Which of these abiotic factors would contribute
to a clumped dispersion pattern in an ecosystem?
Select all correct answers.
a. unlimited water
b. limited water
c. high temperatures
d.moderate temperatures
e. ample rainfall
f. limited rainfall
Answer
[] B
[]C
[]F
The set of human tail bones is an example of a(n)
Answer:
wisdom teeth, and inside corner of the eye
Explanation:
Which process is the opposite of inbreeding?
pollination
hybridization
seed production
genetic engineering
9
Answer:
B
Explanation:
Hybridization
Answer:
B
Explanation:
The path of light refraction in the eye
I know light reflects 4 times but I don't know where
Answer:
Light ray coming inside the human eye refracts four times,
the first refraction takes place in cornea, secondly it takes place in aqueous humor, followed by refraction in lens and then in vitreous humor.
Place the phases of a stem cell into the correct order.
A.differentiation, mitosis, specialization
B.gene expression, differentiation, mitosis
C.mitosis, gene expression, differentiation
D.mitosis, specialization, gene expression
Answer:
C. Mitosis, Gene expression, differentiation
Explanation:
Stem cells are referred to as undifferentiated cells which has the ability to develop into new specialized cells via cellular differentiation. The stem cell initially undergoes MITOTIC division to form new stem cells.
This stem cells then undergo GENE EXPRESSION by turning off some genes and turning on some in order to specialize the cell type. After this, the cell becomes DIFFERENTIATED i.e becomes another type of cell
Place the phases of a stem cell into the correct order.
The correct order would be mitosis, gene expression and then differentiation.
Stem cells can be defined as undifferentiated cells that possesses the ability to develop into many other different cells of the body. Before a stem cell becomes differentiated, the stem cell undergoes growth, mitosis and then information from the gene (DNA) in the cell will be needed to determine the type of cell it will become and be expressed before differentiating and becoming specialized to give rise to a particular type of cell.
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If you cut an apple into slices and leave them in the open air, they will slowly
turn brown. Is this a physical or chemical change? Explain *
O Physical change, because it is still an apple, but it is cut into smaller pieces.
Chemical change, exposure to air has caused the apple to turn color, indicating
something new.
Answer:
Chemical change, exposure to air has caused the apple to turn color, indicating something new.
Explanation:
Chemical change, exposure to air has caused the apple to turn color, indicating something new, because it is not asking if cutting the apples is a physical or chemical change, it is asking if the apples turning brown is a physical or chemical change.
PLz help ASAP
tell me if this is correct or not if it isn't then plz do tell me what I need to change it to
PLEASE HELP ME I REALLY NEED THE ANSWER
Which is the correct order of the Taxonomic Groups from broadest to more specific?
a). Domain, Kingdom, Phylum, Class, Order, Family, Species, Genus
b). Domain, Kingdom, Phylum, Class, Order, Family Genus, Species
c). Kingdom, Domain, Class, Phylum, Family, Order, Genus, Species
d). Domain, Phylum, kingdom, Class, Family, Order, Genus, Species
e. None of the above
please answer this for me (9)
Answer:
A.
Explanation:
All living things (whether a plant or an animal) will have cells
Answer:
A, All living things
Explanation:
Animals, plants, bacteria, fungi, etc. are compossed of cells: the most basic and smallest unit of life.
Which is NOT an example of Human Environment Interaction
building a dam to control river water
allowing a forest to grow wildly
building a house with a heater and air conditioning
Answer:
Answer: B: allowing a forest to grow wildly
Explanation:
The other ones (A & C) Have Human interaction, B explains that you are leaving the Environment alone, not building anything, not cutting anything, but letting nature take its course.
Select the correct answer.
George owns a pet dog. One day, he notices that the dog has become very aggressive, and bites anyone who comes close. Which parameter of
health is most likely the cause of the dog's behavior?
OA general
OB.
historical
Oc. physical
OD. Psychological
Answer:
psychological..............
what is the first thing that happens when a new cell is produced?
Answer:
the new cell splits into two cells called daughter cells
All cells have a cell wall but only plant cells have a cell membrane
A) true
B) false
C) neither true or false
Answer: false
Explanation: Only plant cells have a cell wall. All feels have a cell membrane
All cells have a cell wall but only plant cells have a cell membrane. The given statement is false.
What is difference between unicellular and multicellular organisms?
The main difference between unicellular organisms and multicellular organisms is that unicellular organism is unspecialised it means all the body function depends upon only on the single cell and in multicellular organism there is specific cells for specific purposes.
Multicellular and unicellular organisms are perform almost all the life running activities and processes such as respiration, reproduction digestion, breathing, and metabolism.
In unicellular organism division of labour is at the organ level on the other hand in multicellular the division of labour at cellular, tissue, organs and organ system level.
Unicellular organism has simple body organization and multicellular organism have complex body organism.
Therefore, all cells have a cell wall but only plant cells have a cell membrane. The given statement is false.
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Apples, pears and plums grow on
Answer:
Apples, pears and plums grow on trees.
Explanation:
Answer:
In cold season in Kashmir
There are several external forces that acct on rocks in the rock cycle. Which one is
NOT one of these forces?
A.water
B.pressure
C.ice
D.wind
Answer:
B) pressure
Explanation:
Which forms of energy are used when air is warming in the sunlight? Select all that apply.
Select one or more:
a. Light
O b. Electrical
c. Thermal
O d. Mechanical
Answer:
A and C
Explanation:
The sun itself is light energy and the heat that you feel from the sun is thermal energy.
Light and Thermal energy is used when air is warming in the sunlight.
Energy is emitted by the sun some of which is radiated back and some enter the earth.Solar energy is created by nuclear fusion that takes place in the sun.What is energy?The capacity or power to do work, such as the capacity to move an object of a given mass by the application of force. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another. Energy is a conserved quantity.The law of conservation of energy states that energy can neither be created nor destroyed only converted from one form of energy to another.Hence, A and C option are correct.
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The conversion of energy involve many chemical reactions taking place within an organism or the environment. What is the term for the energy needed to begin one of these reactions?
A. reaction energy
B. Activation Energy
C. Absorption Energy
D. Conversion Energy
I think is a because that's is the right answer
Answer:
It is b i got it right
Explanation:
2. Which two biomes are known asthe dry biomes?
tundra and forest
desert and tundra
desert and grassland
Answer:
The desert and tundra biomes have very different temperatures as well as extremely different plants and animals. The desert can get very hot during the day, but cool off quickly at night. It has sandy soil and supports very little plant life. Animals found in the desert include lizards, javelinas, Gila monsters, coyotes, bobcats, scorpions, and kangaroo rats. The tundra is cold, dry, and often dark. The average temperature is about 10°F. The soil below the surface is permanently frozen, and is called permafrost. A few types of plants grow during the short summer season. Animals found in the tundra include caribou, foxes, wolves, and Arctic hares.
Explanation:
what is the hypothesis and the experimental group
Answer:
where is the picture or what is it talking about?
1. A cell does not need to use energy during
O active transport
exocytosis
O diffusion
O endocytosis
Answer:
The answer would be Diffusion because it does not require the use of energy
Please need help as soon as possible thank you so much
How dose domestication relate to artificial selection?
Answer:
Artificial selection and domestication is where humans take matters into their own hands. And instead of waiting for nature to do things, they are the selection factor. ... And when you have that type of artificial selection, the change can happen much, much faster. Breeding is essentially artificial selection.
Explanation:
Artificial selection and domestication is where humans take matters into their own hands. And instead of waiting for nature to do things, they are the selection factor. ... And when you have that type of artificial selection, the change can happen much, much faster. Breeding is essentially artificial selection.
What will happen if ATP and NADPH are already used up at night?
Answer:
If ATP and NADPH are already used up at night , the production of glucose will stop.
Explanation:
IMPORTANCE OF ATP AND NADPH -: To temporarily store energy, the light-dependent reactions generate ATP and either NADPH or NADH. In light-independent reactions, these energy carriers are used to drive the energetically unfavorable mechanism of "fixing" organically inorganic CO2.
ATP is the molecular energy "currency" in biological systems. All energy produced by living organisms' cellular respiration must end up being used as ATP to power it. NADPH is a hydrogen carrier molecule reduced by NADP (Nicotinamide Adenine Dinucleotide Phosphate). While the light-dependent reactions take place, energized electrons hop on to electron carriers excited by photon energy from the sun (On Photosystem 2) and finally get to Photosystem one.
If ATP and NADPH are already used up at night, the fixation of carbon dioxide into glucose will halt. In other words, the light-independent reaction of photosynthesis will stop.
There are essentially 2 reactions in photosynthesis:
light-dependent reactionlight-independent reactionIn the light-dependent reaction, radiant energy is used to excite electrons chlorophyll molecules while electrons in water replace the excited electrons. ATP and NADPH are generated in the process.
The ATP and NADPH produced during the light-dependent reaction of photosynthesis are essential for the reduction of carbon dioxide into glucose in the light-independent reaction.
Hence, unless the light-dependent reaction takes place to make ATP and NADPH available, there is no other way to produce the precursors for the fixation of carbon dioxide into glucose.
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bark bark potato (ignore this)
Otis watches a cooking show on making mayonnaise. The chef dissolves salt and sugar in vinegar. She mixes in an egg yolk, and then mixes in oil until the ingredients are completely blended together. The chef says that it’s great on sandwiches and that it can be stored without separating.
Which best describes the purpose of the egg yolk in the recipe?
It allows the oil to change from liquid to a gas in order to form bubbles.
It acts to hold the vinegar and oil together in a colloid.
It helps the vinegar be able to form a solution with the salt and sugar.
It mixes with both the vinegar and oil to form a suspension.
Answer:B
Explanation:
It keeps the mayonnaise together I think
Answer:
b. it acts to hold the vinegar and oil together in a colloid
Explanation:
i hope this helps!!
1.) Which of the following is NOT an example of a
producer?
45°: rose bush 135° grasshopper
270°: apple tree 180°: wheat
Answer:
A grasshopper is not a producer.
Explanation:
A grasshopper eats plants; therefore it is a consumer, also known as a heterotroph.
What is the mRNA transcript for this gene? CTTCGGATC
Answer:
GAAGCCTAG
Explanation:
A in Bio last year
When fresh river water meets the salty ocean the waters do
a
They have different densities.
They form layers.
The fresh water floats on the salt water.
All of the above.