Answer:
one fourth
Explanation:
WHAT IS THE POWERHOUSE OF THE CELL?
this is for a friend who answered correctly previously. please just don't put anything funny and let them answer it pleaseeeee.
Explanation:
mitochondria are often referred to as the powerhouse of the cell
A scientific study demonstrated that rat mothering behavior impacts the stress response in their pups. Rats that were born and grew up with attentive mothers showed low activation of stress-response genes later in life, while rats with inattentive mothers had high activation of stress-response genes in the same situation. An additional study that swapped the pups at birth (i.e., rats born to inattentive mothers grew up with attentive mothers and vice versa) showed the same positive effect of attentive mothering. How do genetics and/or epigenetics explain the results of this study
Answer and Explanation:
Regarding genetics, the results of the study show that the mother's genetic material does not influence the behavior of rats in times of stress or in the biological responses of rats to these stressful moments. This is because the mice inherited their mothers' genes, but did not show the same results in a stressful situation when they were raised with different mothers.
Regarding epigenetics, however, we can see that the mothers' behavior in relation to the care of rats managed to provoke epigenetic changes that prevented or stimulated the expression of genes linked to stress, in these rats. The rats that were raised with attentive mothers showed a low expression of stress-linked genes, regardless of the biological mother they had. In addition, it is possible to notice that this modification is permanent, since the rats presented this same type of response throughout their lives.
Why are sodium ions differentially permeable?
Answer:
In most cases, an ion channel is permeable only to specific types of ions (for example, sodium and potassium but not chloride or calcium), and sometimes the permeability varies depending on the direction of ion movement.
Which of these is an example of a trace fossil?
A
skin
B
dung
С
a leaf
D
a skull
what is the other name of iron oxide
Answer:
Iron(III) oxide or ferric oxide
Explanation:
Model: Use the Punnett squares below to model each parent combination. After filling in each Punnett square, predict the percentages of black and white offspring.
Complete question, Answer, and Explanation:
Due to technical problems, you will find the complete question, answer, and explanation in the attached files
In a population with 100 rabbits there are 16 that are albino, with two
recessive genes for albinism. In this population, what is the gene
frequency for the albino allele?
16
16
0.4
0.84
Answer:
The gene frequency for the albino allele is 16%.
Explanation:
Given that in a population with 100 rabbits there are 16 that are albino, with two recessive genes for albinism, to determine, in this population, what is the gene frequency for the albino allele, the following calculation must be performed:
16/100 = X
0.16 = X
1 = 100
0.16 = X
0.16 x 100 = X
16 = X
Therefore, the gene frequency for the albino allele is 16%.
What four legged relative of snakes was used to compare genomes?
Answer:
Lizards / Reptiles
(Scientific four-legged snake is: Tetrapodophis)
Explanation:
couldn't add answer ^^ ignore comment :-)
The evolutionary pathways of five species are represented in the diagram below.
Present
{
Past
Whích statement is best supported by the diagram?
А.
Species T and Species U are related to species X
B. Species X evolved later than Species U but before Species s.
С.
Species T is the ancestor of Species S.
D
Species U and V evolved from Species S.
Answer:
4
Explanation:
The statement that is best supported by the image is that species T and species U are related to species X.
What is evolution?Is the gradual development of new forms of organisms from their ancestral forms.
In the image, X is the ancestor of T, U, V, and S. Thus T, U, V, and S are related by common ancestry.
Thus, it is correct to say that T and U are related to species X.
However, it is incorrect to say that X evolved later or species U and V evolved from S.
More on evolution can be found here: https://brainly.com/question/13492988
#SPJ2
Which of the following is a part of a land-based carbon cycle?
What are your answer choices?
[tex]what \: is \: the \: economic \: importance[/tex]
[tex]of \: bacteria \: in \: agriculture \: [/tex]
??????
If u know the answer write down no links( I will report them )
PLSSSSSSSSSS HELPPPPPPPP PLSSSS HELPPPP I NEED HELP PLS NO LINKS PLSSS I REALLY NEED HELPPPP
SHORT ANSWER QUESTION: Include a Claim, Evidence, Explanation, and Conclusion for full credit. Rubric is include at top of quiz.
In the past, fifty percent of jaguars in the Amazon jungle had large strong jaws and fifty percent had weak jaws. There was a change in their environment leaving only hard-shelled reptiles like turtles available for the jaguars to eat. Below is a graph showing the allele frequency in the population of jaguars over the next 5 generations.
Construct an argument based on evidence to determine which allele represents the large strong jaws and which allele represents the weak jaws.
Answer:
Allele G represents the strong jaw, and allele g represents the weak jaw. This is because as the generations go by, allele G’s population increases, but allele g’s population decreases. If hard shelled animals are the only foods available to them, you would need a strong jaw to eat them. This means that allele g wouldn’t be able to eat these reptiles, so their population would decrease from lack of food.
Explanation:
Which is an example of communities ( in terms of biology )
A. 10 white-tailed deer
B. 2 blue jays, 3 northern cardinals, and 1 house sparrow eating seeds
C. 1 snapping turtle on a rock; 2 snapping turtles near the edge of a pond
D. 6 bullfrogs in a pond; 30 bullfrog tadpoles hatching from eggs
Answer:
B
Explanation:
A biological community is defined as a group of different species which interact with each other within the same environment.
Of the choices, only option B mentions more than one species (Blue Jay, Northern Cardinal and House Sparrow) and they all seem to be in the same environment interacting (all eating seeds).
Therefore option B is correct.
Hope this helped!
Answer:
B. 2 blue jays, 3 northern cardinals, and 1 house sparrow eating seeds
Explanation:
Hope you have a great day :)
Sustainable development and land use planning are most concerned with _______.
Answer:
improving long term city health
What are the differences between male and female chickens?
Size of feathers
Size of comb and wattles
Size of toes
Size of spurs
Size of beaks
Color of birds
Tempanic Membranes
PLZ HELP IF RIGHT I WILL GIVE U BRAINLIST!!
Due IN 10 MINS!!!
Answer:
Hey! New magazine out now! :)
Explanation:
In your own words summarize each step of the carbon cycle. Each step should include a 2-3 sentence explanation. Include an image of the carbon cycle showing the steps discussed in your summary.
What comes next in a super giant's life cycle?
What changes in energy occur when the bowling ball strikes the pins?
Answer:
please give me brain list and follow
Explanation:
The bowling ball's energy of motion is about to cause a change. ... The collision with the bowling ball changes that. The ball strikes the pins, and some of the ball's energy of motion transfers to the pins. This makes the pins gain motion energy and leaves the ball with less motion energy.
Two atoms have the same number of protons but different numbers of neutrons. These atoms are:
A. electrons
B. isotopes
C. molecules
D. radiation
tysm!
Answer:
Isotopes
Explanation:
If two atoms have different numbers of protons, they are different elements. However, if two atoms have the same number of protons, but different numbers of neutrons we refer to them as isotopes. Two terms we use to identify nuclides (isotopes) are atomic number and mass number.
The main function of photosynthesis is to produce food plan however some thing else happens during photosynthesis that supports animals life which part of the illustration shows the part of photosynthesis that is essential to animals but not related to food
The rising sea level could be a
consequence of
A. the desalination of water.
B. stormwater runoff.
C. global warming
D. glaciation
what is meanustration pariod
Answer:
menstration period is when a woman's body releases tissue it no longer needs so then the girl bleeds (usually for 7 days) and then every month or so (different for all girls) the uterus lining gets thicker to prepare for a fertilized egg if the woman becomes pregnant. :)
What environment are affected by animals cloning
Answer: well when an animal clones another animal I could hurt the live stock. My question is are talking about the environment they live in?
Explanation:
What is the main difference between primary succession and secondary succession?
Answer:
Primary succession in the first initial establishment of an ecosystem on a new layer of terrain (usually rock), whereas secondary succession is a re-establishment of an ecosystem OR simply any establishment of an ecosystem on a rock which was previously inhabited.
Explanation:
Primary succession is the very first establishment of an ecosystem on a new layer of terrain (usually rock) which was previously uninhabited by living organisms. Secondary succession can be thought of as a re-establishment of ecosystems on a terrain/rock which was previously inhabited but is no longer due to an ecological or environmental disruption.
Hope this helped!
Answer:
Primary succession is the progress of plants growing on bare lands, like a bulldozed area, a landslide, or even a solid rock. (Or a volcano.)
On the rock, lichens start, make a little soil, mosses start in the soil, make a little more, Spikemoss (a vascular plant) starts, traps and makes more soil, making a place for dry land plants, which trap and make more soil, eventually, after a very long time, giving rise to a mature forest over rock. The only way to tell that rock is the substrate is the forest composition
Secondary is from a place that has had a forest, and is either burned, farmed, or cut. Plants start very quickly from seeds, roots, tubers, and reforestation can take as little as 20 years, and maturity as little as 75.
Explanation:
Hope this helps
Name 4 systems that perform the process nutrient absorption
Answer:
The digestive system does that know just search up what is in the digestive system in gogle
Explanation:
describe a specific exmaple of postive action that reduce human imapct on land?
Answer:
Human activities contribute to climate change by causing changes in Earth’s atmosphere in the amounts of greenhouse gases, aerosols (small particles), and cloudiness. The largest known contribution comes from the burning of fossil fuels, which releases carbon dioxide gas to the atmosphere. Greenhouse gases and aerosols affect climate by altering incoming solar radiation and out-going infrared (thermal) radiation that are part of Earth’s energy balance. Changing the atmospheric abundance or properties of these gases and particles can lead to a warming or cooling of the climate system. Since the start of the industrial era (about 1750), the overall effect of human activities on climate has been a warming influence. The human impact on climate during this era greatly exceeds that due to known changes in natural processes, such as solar changes and volcanic eruptions.
Using what you know
about Hox genes,
hypothesize what may
have happened to the fruit
fly on the right.
There are different kinds of mutations. What can happened to the fruit
fly on the right is that there will be Homeotic mutations in the fruit flies.
What takes place to the body of a fruit fly if the Hox gene is altered?When there is Homeotic mutations in fruit flies, Homeotic genes are said to be the reason or the option that is used in knowing the identity of some specific segments or structures of the body.
If an homeotic genes is said to be inactivated or when expressed in an unusual part of the body due to mutations, it may make the body segments to take on new form.
In Drosophila, that is the fruit fly, a Hox mutation can create a lot of changes such as an extra pair of wings, new a set of legs, etc.
Learn more about Hox genes from
https://brainly.com/question/21690388
Question 9 of 17
Water molecules break down during cellular respiration
O True
O False
The coral reef has specific temperatures and sunlight each day, as well as many types of corals and fish that live there. What level of organization is the coral reef?
A. Organism
B. Population
C. Community
D. Ecosystem
Answer:
D Ecosystem
Explanation:
Answer:
dd
Explanation: