Answer:
piwi-interacting RNAs (piwi-RNAs)
Explanation:
The piwi-interacting RNAs (piRNAs) are small non-coding RNAs (from 21 to 31 nucleotides) that are abundantly expressed in the animal germline in order to control the expression of target sequences. The piRNAs associate with PIWI proteins from the Argonaute family (AGO) to form an effector complex that binds to complementary target DNA/RNA sequences. These small ncRNAs target Transposable Element (TE) transcripts to suppress TE expression and thus maintain genome integrity. The piRNAs can also guide epigenetic remodeling complexes that suppress gene expression by methylation of target DNA sequences in the nucleus.
A small percentage of some human DNA has a connection tho neanderthal.
Answer:
This information is generally reported as a percentage that suggests how much DNA an individual has inherited from these ancestors. The percentage of Neanderthal DNA in modern humans is zero or close to zero in people from African populations, and is about 1 to 2 percent in people of European or Asian background
The digestion of ___ takes place in the stomach by the actions of enzymes operating at low pH. This digestion continues in the small intestine and the large molecules are broken down into ___.
Answer:
food minerals
Frogs have 13 pairs of chromosomes. Complete this model by writing in the correct number of chromosomes for the sperm, egg, and fertilized egg of a frog. Then write in the type of cell division taking place in the two phases shown in the model.
Answer:
Explanation:+13 chromosome from sperm +13 chromosome from egg equals 26 chromosomes for fertilized egg Cell division for growth is mitosis.
Explanation:
Suggest what might happen if cells grow and reproduce in an environment where no cholesterol is available.
Cell walls provide support and protection for plant cells and the plasma membrane maintain homeostasis
Explanation:
If cells grow and reproduce in an environment where no cholesterol is available than cell walls provide support and protection for plant cells and the plasma membrane maintain homeostasis.
What is plasma membrane?Cell membrane has been defined as a wall that differentiate and protect the inner structure of the cell from the outer environment. The main function of the cell membrane has to keep away the toxic material out of the cell. The cell membrane contain the channels as well as receptors that gives permission to only selective permeable membrane to enter into the cell.
Cells must maintain homeostasis to survive. To do this cells use various processes. One process keeps the right amount of water inside the cell. A cell takes in the same amount of water as it looses describe that it is maintaining homeostasis by keeping it's water concentration level.
Therefore, If cells grow and reproduce in an environment where no cholesterol is available than cell walls provide support and protection for plant cells and the plasma membrane maintain homeostasis.
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A specieces that impacts the survival rates of another species in an ecosystem is known as
a
niches species
b
extinct species
c
endangered species
d
keystone species
According to natural selection, individuals that tend to survive are those that have which of the following?
the ability to quickly produce the most offspring
the largest and strongest body structures
the genetic variations that are best suited for their environment
the longest legs and fastest running speeds
Answer:
The genetic variations that are best suited for their enviornment
Explanation:
Those that are not well suited for their environment will die off, leaving only the ones that are suited for it. This species will slowly take hold until the species has adapted and become a completely different one.
Answer:
The genetic variations that are best suited for their environment
Explanation:
This way they may also have a chance to evolve if natural selection kept going until everyone of the species had that trait.
How did the 2014 Colorado case demonstrate just what a versatile zoonotic disease the plague is?
A.) In this case, antibiotics were not effective against the bacteria.
B.) In this case, scientists could not track down a specific host.
C.) In this case, the bacteria infected humans through a dog.
D.) In this case, the bacteria had been dormant for decades before regenerating.
Answer:
C). In this case, the bacteria infected humans through a dog.
Explanation:
The Colorado Department of Public Health and Environment (CDPHE) in July 2014 witnessed the 'Yersinia pestis' bacteria from the blood of a patient with Pneumonia. It was later noticed that the patient got infected through a dog suffering Hemoptysis. This pneumonic plague case even caused the human-to-human transmission of the bacteria along with the animal-to-human. Thus, option C correctly displays how the plague is a versatile zoonotic disease.
Answer: C
In this case, the bacteria infected humans through a dog.
Explanation:
got it right on my edge. test
The process by which a nucleus divides into two new identical nuclei is called-
nuclear fission..................
What type of organisms are most likely to be found as fossils?
Organisms with hard body parts such as a mineralized shell are much more likely to become fossilized as har parts are not fed by scavengers.
Types of organisms that are most likely to be found in the fossils have completely made up of hard bodies or at least some hard body parts.
The deposit of sediments and the finer the sediment deposited the likelier fossilization is to occurThe hard parts of organisms, for instance, bones, and teeth have had becoming fossils.Scavengers normally leave such hard parts, however, they also decay with time but this gives more time to be buried in sediments.These hards parts have better chances than the organisms with soft body parts to be found in fossils.
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What happens during cell differentiation?
Mutated cells are destroyed.
Cells are organized into organ systems.
Cells become specialized to perform different tasks in the body.
Cells are transformed from one type of cell to another.
Answer:cells are transformed from one type of cell to another ?
Explanation:
You are sitting in a room with a door on your lef
a wall of windows on your right, a desk in front
you, and a bookcase behind you. This statement
uses reference points to describe your
A speed
B
velocity
C position
D
motion
Answer:position
Explanation:
Answer:
c. position
Explanation:
Question 1(Multiple Choice Worth 4 points) (01.03 LC) Organic molecules are sometimes found within meteorites that crash into Earth. Which meteorite condition in space is similar to what most likely was present in Earth's early atmosphere? Abundance of oxygen Very cold temperatures Presence of inorganic molecules Low levels of ultraviolet radiation
Answer:
Presence of inorganic molecules
Explanation:
Earth's primitive atmosphere contained a mix of different inorganic compounds (gases) including, among others, water vapor (H2O), carbon dioxide (CO2), ammonia (NH3), methane (CH4), etc. It has been proposed that these inorganic molecules would generate the conditions needed to form a "primordial soup" of organic molecules (i.e., RNA nucleotides, amino acids, etc). Subsequently, this soup would accumulate in water bodies of the primitive Earth due to endogenous abiotic syntheses and the delivery caused by comet/meteorite collisions.
Answer:
C. Presence of inorganic molecules
Explanation: i took the test and got it correct :)
What are the four possible gametes if an organism has the genotype jjPp?
Answer:
Cannot understand
List, in order, all the parts of the cell involved in getting oxygen into your cells so it can help release energy. (PLEASE HELP AS SOON AS YOU CANN, AWARDING BRAINLIEST!! if I can that is-)
A.
Cytoplasm, nucleus, then mitochondria
B.
Cell membrane, cytoplasm, nucleus and then mitochondria
C.
Cell membrane, cytoplasm, and then mitochondria
D.
Cytoplasm, cell membrane, then mitochondria
Answer:
i believe the answer is C.
Explanation:
what are 6 hevy metals that can be taken up by plants
Answer:
Cd, Cr, Cu, Hg, Pb, and Zn
A certain species of fish (A) preys on a smaller species of fish (B). The smaller species of fish mostly consumes seaweed. What would be the effect of overfishing species A? If species A is overfished, then the drop in population of species A will have a(n) (direct, indirect or cascading) effect on the population of species B. The population of species B will increase. A(n) (direct, indirect, or cascading) effect of overfishing would be a drop in seaweed, because the larger population of species B would consume more seaweed.
Answer:
B. The population of species B will increase, A(n) (direct, indirect, or cascading) effect of overfishing would be a drop in seaweed, because the larger population of species B would consume more seaweed.
Explanation:
As population of Fish A is directly dependent on population of fish B and population of fish B is dependent on seaweed. Overfishing of species A will have a direct effect on species B and population of species B will increase as there will be less predator (species A).
Due to overfishing of species A resulting into increase in species B, there will be an indirect drop in the seaweed, because the larger population of species B would consume more seaweed.
Hence, the correct answer is "B".
If a mother is a carrier of the recessive gene (Xx) for hemophilia and
there is a 25% chance of having a child with hemophilia, what must the
father's genotype be?
Answer:If she gets the X chromosome with the hemophilia gene she will be a carrier. So a carrier's daughter has a 50% chance of being a carrier. A woman who is a carrier has: a 25% (one in four) chance of having a daughter who is a carrier.
Explanation:
How does ATP structure relate to its function?
Answer:
The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups. ATP is commonly referred to as the "energy currency" of the cell, as it provides readily releasable energy in the bond between the second and third phosphate groups.
What features of cells is best demonstration in the image
Answer:
I think its D
Explanation:
The body consumes carbohydrates to produce energy that is used for cellular processes. Into what molecule is this energy converted for use in the cell?
A- AMP
B- ATP
C- DNA
D- RNA
Ok i have no idea and am kind of doing nine weeks test but i need some help (;
Answer:
dna
Explanation:
I believe its ATP. Hope you do well on your test.
The longer the wavelength
A. the more calm the wave
B. the shorter the wave
C. the faster the wave
3 paragraph essay on the natural selection process
Answer:
Explanation:
Help meee pretty please
Answer:
what you need help with
Explanation:
A tsunami is caused by an _______________________ or a _______________________ underwater that displaces water, generating a wave that can become large and powerful when it reaches shorelines. (2 points)
meteorite impact or a movement (earthquake) underwater.
please help me asap!!!!!
Answer:
Explanation:
You best answer would be c
I went through all of the questions and C is the only clear straight forward and correct on hope the helps
what is the definition of gogibidies?
Answer:
a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
Consider a major environmental change (like antibiotics entering a person's body). If there are not organisms in a population that have traits that allow them to still continue to survive to reproduce, what would likely happen to that population?
Answer:
The population (of the bacteria) will reduce
Explanation:
This question appear a little confusing because of the structure of the second sentence. However, it appears to describe how an antibiotic works. Antibiotics work against bacteria by either making the environment toxic for the bacteria (which kills it) or inhibiting the growth/reproduction of the bacteria. Both patterns will eventually lead a sharp reduction in the population of the bacteria. Even if what the antibiotic does is to inhibit the reproduction of the bacteria, this act provides the body with an opportunity to fight the "unreproductive" remnants of bacteria thereby leading to the reduction of population of the bacteria.
Which describes laptops, cell phones, and video game systems that people use every day? obsolete technologies current technologies emerging technologies coexisting technologies
Hey Guys I Was Wondering How Many Likes I Would Get If I Said----------------------------------
MERRY CHRISTMAS TOO ALL YOU WONDERFUL RAINDEERS
Im not sure but merry Christmas to you wonderful reindeer tooooo
The feature on the ocean floor at is call a(n)
Answer:deep Ocean Frencia
Explanation: