Which of the following statement is true?
A. Energy can be created, but not destroyed.
B. Some machines are 100% efficient.
C. Atomic energy can't be converted into electricity.
D. When work is done, some energy is always "lost" as heat.
PLEASE ANSWER!! PICK U AS BRAINLIEST!!!
Answer:
your answer is D when work is done, some energy is always lost as heat
Explanation:
Can energy be lost as heat?
In practice, whenever work is done to move energy from one form to another, there is always some loss to other forms of energy such as heat and sound.your answer is D when work is done, some energy is always lost as heat
PLEASE HELP!!! Q AQ
What type of system is required to maintain the amount of sugar in the blood at a certain level, making sure it does not rise too high or fall too low?
A. one negative and one positive feedback loop
B. two negative feedback loops
C. two positive feedback loops
D. one negative feedback loop
what would it take to determine the climate has changed?
Answer:
Sea level rise is another clue that tells us Earth's climate is getting warmer. But melting ice is not the only cause of rising sea levels. As the ocean gets warmer, the water actually expands! Scientists have observed that the sea level has risen 7 inches in the last 100 years.
Explanation:
Because the hotter it get the more water in the ocean the colder less water in the ocean or it could stay the same
PLEASE HELP ASAP ILL GIVE BRAINIEST
Do you place an item in the autoclave before or after washing it?
Answer:
Wash it first to remove obvious soil or residue.
Then put it into the autoclave to sterilize it.
Help
What is the water
potential for a solution in
an open container that is
0.3M? (assume i -1, and
a temperature of 47°C
Which technology can be used to follow endangered animals that have been
fitted with an electronic collar?
A. The Global Positioning System (GPS)
B. Environmental DNA (EDNA) surveillance
C. Geographic information systems (GIS)
D. Unmanned aerial systems (UAS)
Answer:
I personally think that all the methods could potentailly work but I would have to go with "A" as usaully GPS's are used as they are more simple and easier to have in a collar, as radio technology is probably the number one most used by people such as scientists
What is does the Law of Dominance state?
Which statement best describes Earth's oceans?
Answer:
Ocean covers most 0f the planet's surface and contain nearly all its water.
Explanation:
The ocean is a constant form of salt-water that incorporates more than 70 percent of the Earth's exterior. Ocean courses command the world's climate and shake a kaleidoscope of experience. ... Smaller ocean domains such as the Gulf of Mexico, Mediterranean Sea, and the Bay of Bengal have recognized seas, gulfs, and bays.
Answer: C (i need 20 or more words lol)
can someone help me pls
Answer:
Heredity is the transfer of genetic information from one generation to anther.
Explanation:
The statement that best describes heredity is ''Heredity is the transfer of genetic information from one generation to anther.'' Genetic information can be transfer from one generation to another through the process of reproduction in which the sperm of male fuse with egg of female with each other forming zygote that have some characteristic of male parent and some of female parent.
Mr. Norris goes on a run around the track, if the track is 400 meters long, and he runs 4 laps, when he stops on his starting point, what is his total
displacement
A 1600 m
B. 800 m
C. 4 m
D. Om
Answer:
A
Explanation:
If the track is 400m and he runs around 4 times, then he runs 1600m. (400x4)
3. PI of a protein is dependent on the number of acidic and basic amino acid residues in the protein.
Answer:
The study of proteins is important because all the genes in cellular DNA house the program or code for a unique protein structure.
Explanation:
Within the science parlance, pl is the short way to write Isoelectric Point. It is the pH (that is the acidity or basicity) of a solution at which the net charge of a protein becomes nil.
The surface, in most cases, is likely going to be negatively charged when the pH of that same solution is above the pl. When this occurs, molecules that have similar negative charges will tend to move away or be repelled.
It is useful to note that the structure of proteins comprises of 20 amino acids all of which are connected by peptide bonds.
Cheers!
Which of these is an example of a biotic factor that could limit a community in an ecosystem?
A. A drought occurs for several months.
B. New predators move into the ecosystem.
C. A hurricane passes through an ecosystem.
D. Living space is lost due to human activities.
Answer:
B. New predators move into the ecosystem.
Explanation:
A, C, and D are all abiotic (nonliving) factors that could limit a community in an ecosystem.
Which of the karyotypes shown is from a normal female?
A
B
C
D
Answer: c
Explanation:
Females have two X chromosomes and males have an x and a Y chromosome. The Y chromosome is significantly shorter because it doesn’t carry as many genes. C is the only option that has two X chromosomes
The karyotype of a normal female is in diagram c. The correct option is c.
What is a karyotype?A karyotype is an individual's complete set of chromosomes. The phrase might refer to an image created in a lab showing a person's chromosomes separated from each individual cell and organized in numerical order.
If a person has a mutation, the karyotype can tell whether they are a man or a mulcher. This is so because a person's chromosomes are represented by a karyotype.
A 23-pair karyotype, one of which is made up of sex chromosomes that are XY for males and XX for women, is required for a person to be considered to be mutation-free.
Males have an x and a Y chromosome, while females have two X chromosomes. The Y chromosome is considerably smaller because it contains fewer genes. The only choice with two X chromosomes is C.
Therefore, the correct option is C.
To learn more about karyotype, refer to the link:
https://brainly.com/question/21086814
#SPJ6
Why might forensic scientists want to
compare DNA from different sources?
Answer:
to crose check to make shure they have the right sample.
Explanation:
Explanations? we don't need Explanations where were going.
According to this diagram, which way would the molecules need to move in order for the figure above to represent active transport?
molecules inside and outside a cell, with more molecules outside of the cell than in
Molecules inside the cell move outside the cell.
Molecules outside the cell move inside the cell.
The molecules will not move.
Molecules will move into and out of the cell at the same time.
Answer:
Molecules inside the cell move outside the cell.
Explanation:
fill in the blanks with the word that best completes the analogy
10. DNA is to T as RNA is to ___
11. DNA is to deoxyribose as RNA is to___
How does camouflage help an organism survive?
Answer:
they camouflage into environment to blend in and to look the same as whatever they are on or in this stops them from being recognized
Answer:
Organisms use camouflage to mask their location identity and movement. This allows prey to avoid predators, and for predators to sneak up on prey
Explanation:
Kim is pushing a box on a flat surface. The box is moving. Which type of force is Kim using to move the box?
Answer:
Applied force
Explanation:
Which layer of the rainforest usually receives the most direct sunlight?
the understory
A. the canopy layer
B. the forest floor
C. the emergent layer
D. the understory
Answer:
The emergent layer
Explanation:
This part of the forest has high tree tops
Answer:
The layer that get the most sunlight is the emergent layer.
Explanation:
the reason that is the awnser is the emergent layer is the highest part of the tree.
PLEASE HELP THIS IS DUE IN 20 MINUTES
About 30 to 50 percent of all species are found A. on farms
B. in rain forests
C. in the ocean
D. on the prairie
Answer:
B rain forests
Explanation:
Explanation: B. rain forest
my bad its that
PLEASE HELP ME!!
These notes were taken during a class about biological evolution, but the subject title is missing.
-results from immigration
-new genes brought into a population
-variation in a population increases
What do the notes describe?
gene flow
natural selection
genetic drift
mutation
Answer:
gene flow
Explanation: you can call gene flow migration as long as it involves fertile individuals or gametes
the human digestive system contains bacteria which aide in digestion for the human as well as vitamin production. the bacteria receive a home and food. this is an example of which type of symbiotic relationship?
Answer:
This is a mutualistic relationship.
Which of the following is a correct DIFFERENCE between sexual and asexual reproduction?
A. Sexual Reproduction creates genetically different offspring.
B. Sexual Reproduction creates genetically identical offspring.
C. Asexual Reproduction creates genetically different offspring.
D. Asexual Reproduction creates no offspring.
Answer:
A. Sexual Reproduction creates genetically different offspring.
Explanation:
Sexual Reproduction is created through 2 different opposite parties, in which the product takes around half of the genes from each individual parties. The traits that are shown are then decided on whether or not they are dominant or recessive or non-existent.
In a Asexual Reproduction, the reproductive capabilities of both parties are found inside one organism. The organism is able to produce both the sperm and egg, and therefore do not need a partner to reproduce. This means that the DNA inside the body is the only source for production, and that there will be very little variation in the DNA.
~
Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique
In the cross Bb x Bb (two heterozygous mice), what percentage of the offspring would you predict to have the same phenotype as the parents? 0% 25% 50% 75% 100%
Answer:
75%
Explanation:
A phenotype refers to observable traits of an individual, such as eye color, height, and blood type. Some traits are also determined by environmental factors.
A phenotype refers to the physical characteristics of an organism.
In the cross Bb x Bb (two heterozygous mice), 75% of the offspring would you predict to have the same phenotype as the parents.
Answer:
75%
Explanation:
Organisms that are similar in structure and form and successfully reproduce among
themselves belong to the same family.
True or false?
resequence the following from largest to smallest
bases
chromosomes
nucleus
genes
Answer:
IM SMART BECAUSE I'M A TEACHER
Explanation:
SO THE ANSWER IS NUCLEUS GENES CHROMOSOMES BASES
Transcribe the DNA sequence into mRNA: TAC CCA AGT
PLESSE HELPPPP
Answer:
AUG GGU UCA
i think im not sure
umm im trying to figure it out tho i think its A
Explanation:
Answer:
AUG GGU UCA
Explanation:
To transcribe the sequence, we first must find the complementary sequence of the DNA sequence. To do this, we must know that "A" pairs with "T", and "G" pairs with "C". What this means is we replace A with T,G with C, and vice versa. We get ATG GGT TCA. Now all we have to do is replace all the "T"'s with U's as Thymine is replaced by Uracil in RNA. Doing this we get AUG GGU UCA, which is the answer.
Pls help!! It’s due today!!
How Golgi bodies play a important role in the cell?
Answer: The Golgi body is responsible for packing up proteins and lipid molecules and exporting them outside of the cell.
Explanation: The Golgi apparatus or body is a important organelle that helps the cell transfer and pack up proteins and lipids(Fat) and sending them outside the cell.
Answer:
A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell. Named after its discoverer, Camillo Golgi, the Golgi body appears as a series of stacked membranes.
Explanation:
Which state does not have a National Park
Delaware
Rhode Island
North Dakota
All states have a National Park
Answer:
I think it's Delaware...
Explanation:
But it's not the only state without a national park.......