Answer:
.5
Explanation:
Remember that p = dominant allele, q = recessive allele. Use the Hardy-Weinberg equations:
p^2 + 2pq + q^2 = 1 (AA + Aa + aa = 1)
So aa = q^2. Take the square root, and we'll have just q by itself.
√a^2 = √.25 = .5
So the frequency of the a allele (recessive) = .5.
p + q = 1
p + .5 = 1
p = .5
The frequency of the A allele is .5.
What would happen to the other organisms if the killer whales migrate to other water to hunt and fail to return ?
What is most unusual about parasites
Answer: pls mark me branniest
Explanation:
It depends on its host for survival. Without a host, a parasite cannot live, grow and multiply. For this reason, it rarely kills the host, but it can spread diseases, and some of these can be fatal. Parasites, unlike predators, are usually much smaller than their host and they reproduce at a faster rate.
Cell differentiation occurs when various genes are expressed to a different extent in different cells. What does it mean for a gene to be "turned off," or not expressed?
A. Transcription into RNA does not occur for that gene.
B. That gene is removed from the cell's DNA.
C. The RNA for that gene is not translated into protein.
D. The proteins sequenced by that gene are broken down inside the cell.
Answer:
C.
Explanation:
When it is said that a gene is "turned off" this usually means that this particular gene is no longer making the directions that need to be followed in order to make proteins. Therefore the proteins that are needed for a specific job, such as tolerating lactose, are not being produced. So the answer in this question would be that the RNA for that gene is not translated into protein.
Answer:
Answer is A.Transcription into RNA does not occur for that gene.
Explanation:
Which work against each other to maintain homeostasis?
A. Hormones and neurotransmitters
B. Motor neurons and sensory neurons
C. Somatic and autonomic nervous systems
D. Sympathetic and parasympathetic nervous systems
Answer:
D.
Explanation:
I just did this unit 5 test on ap ex, this is correct.
Sympathetic is kind of the reaction to something, like the stress or when you can't stop breathing because you're panicking.
Parasympathetic is the opposite, it calms you down after you've freaked out. Right after you've been scared like crazy, and then you see it's just your best friend, you breathe and relax because you realized it's a joke.
So these work "against" each other to maintain homeostasis and the well being and balance of your body.
PLZ mark me brainliest for explaining!
The system that works against each other to maintain homeostasis is sympathetic and parasympathetic nervous systems. The correct option is D.
What is homeostasis?Homeostasis is the state of constant internal, physical, and chemical conditions maintained by living systems in biology.
This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits.
Homeostasis, derived from the Greek words for "same" and "steady," refers to any mechanism by which living things actively maintain relatively stable conditions required for survival.
Homeostasis is regulated by a series of regulatory systems functioning at the organ, tissue or cellular level.
Substrate demand, activation or inhibition of individual enzymes and receptors, enzyme synthesis and degradation, and compartmentalization are examples of control mechanisms.
The sympathetic and parasympathetic nervous systems compete with one another to maintain homeostasis.
Thus, the correct option is D.
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Which process connects glycolysis and the citric acid cycle?
A) lactic acid formation
B) acetyl CoA formation
C) electron transport
D) Krebs cycle
Answer:
c
Explanation:
Five closely related species of frogs live in ranges that overlap. Some breed in woodland ponds, some in lowland swamps, and some in streams. How do these five species of frogs remain separate and do not attempt to mate?
Answer:
The diversity within the same species is what makes it not possible to reproduce, since it can have different methods of appearance and even different zones or mechanisms of reproduction since this was adapted to each particular climax.
Explanation:
Frogs that have different qualities in the same species are because they are subject to different environmental characteristics, therefore it is a way of natural adaptation.
By having different adaptation methods, this conditions that there is no cross reproduction between them.
An indicator for a protein is added to a solution
that contains protein and to a solution that does
not contain protein. State one way, other than the
presence or absence of protein, that the two
solutions may differ after the indicator has been
added to both. [1]
Answer:
There would be a color change
Explanation:
Biuret solution is used to identify the presence of protein. Biuret reagent is a blue solution that, when it reacts with protein, will change color to pink-purple.
Since one of the solutions does not contain protein, the blue color of the Biuret reagent will not change.
7. Describe two strategies that parents can use to help cope with stress.
8. Describe the three types of childcare available to families.
9. What can parents do to be more involved in their children's education at home and at
school?
10. Which factors should a parent consider when choosing a childcare option?
Answer:
7. Meditation and exercise are two excellent ways to cope with stress. Where meditating for a short while on daily basis can help one to focus, exercise causes a release of dopamine that elevates the mood.
8. There are daycare centers where parents can leave their kids for a certain period of time while they're at work or something. Secondly, there is an in-house babysitter option where the babysitter looks after the kids at the parents' house. Third option is the keeping a nanny, who will take care of their needs for the designated time everyday.
9. They need take more interest in what their children are studying at school, help with their homework and projects etc.
10. Parents should take into consideration the needs of the child and how responsible that particular childcare facility would be at delivering it.
Hope that answers the question, have a great day!
What defines our current 'standard' for one meter?
Answer:
one meter is a little bigger than 3 feet
Explanation:
Answer:
Obe metre is the distance travelled by light in 1/299792458 of a second
Which process produces human egg and sperm cells?
fertilization
ovulation
pregnancy
gametogenesis
Answer:
gametogenesis
Explanation:
pOH measures the concentration of
?
Answer:
pOH measures the concentration of Hydroxide ions.
Explanation:
The pOH content of bases is higher because they contain more Hydroxide ions compared to acids which contain more Hydronium or Hydrogen ions.
pH measures Hydronium or Hydrogen content, whereas pOH measures Hydroxide content.
Wetlands provide all of the following benefits EXCEPT
1. a habitat for birds animals and endangered plant and animal species
2. protection against the wind and waves of storms coming in from the ocean
3. the trapping of pollution in the air that is moving towards the ocean
4. the storage of flood water before it overflows and causes damage
Answer:
I am not sure but I think it is 2
Wetlands provide all of the following benefits EXCEPT - 3. the trapping of pollution in the air that is moving towards the ocean.
Wetlands
Wetlands associated with streams and rivers slow down floodwaters by acting as giant shallow pans. Water flowing into these pans loses speed and spreads out.
It provides many benefits:
food and habitat for fish and wildlife including threatened and endangered species,water quality improvementflood storageshoreline erosion controleconomically beneficial natural products for human useLearn more about Wetlands:
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Which of the following could be a nucleotide of dna?
Answer:
deoxyribose + phosphate group+ thymine
Answer:
deoxyribose + phosphate group + thymine
Explanation:
This is the correct answer on edge 2021 all of the other options are excluded
A biologist found an assymetrical organism. A part of the organism was injured, but it was able to repair itself through regeneration. Because the organism is assymetrical and it was able to regenerate it's probably an amphibian, and belongs to the phylum (1. Porifera, 2. Mollusca, 3. Annelida)
Answer:
3. Annelida)
class of organisms
Explanation:
because the organization is resistant to all forms of things
When chyme leaves the stomach it enters the _________________. MULTIPLE CHOICE.
A. Ileum
B. Duodenum
C. Jejunum
D. Pylorus
Answer: B) Duodenum is the right answer
Explanation:
Answer:
B. Duodenum
Explanation:
aka the small intestine
True or False: Common and Australia Blacktip Sharks are the same species.
Answer: false
Explanation:
Look it up on google
Imagine that all plant life on earth was suddenly wiped out. What effect would this have on the atmospheric gases and how would this ultimately affect earths climate?
what is the digestive system
What is the function of ATP? *
Answer:
ATP is the main source of energy for most cellular processes. The building blocks of ATP are carbon, nitrogen, hydrogen, oxygen, and phosphorus.
Explanation:
gene mutations can be caused by many things. these mutations are biologically important because they
Answer: Can result in a new variety of gene combinations in the species.
Explanation:
PLZ ANSWER!!! Water covers the majority of Earth's surface and occurs in various forms.
Which option correctly orders these sources from the greatest amount of water to the least amount of water? (put it in order)
1. lakes and streams
2. frozen in ice
3. ocean
4. groundwater
Answer:
3,2,4,1
Explanation:
Sometimes the moon looks like a crescent. At other times, the moon looks like a half circle. What makes it possible to see the surface of the moon from Earth?
Answer:
the sun
Explanation:
the sun gives us light to see other objects in space
Sometimes the moon looks like a crescent. At other times, the moon looks like a half circle. the sun makes it possible to see the surface of the moon from Earth as sun gives us light to see other objects in space
what are the features of sun ?
The Sun is the largest object in our solar system, where its volume would need 1.3 million Earths to fill it whereas gravity holds the solar system keeping everything from the biggest planets to the smallest debris.
The core is the hottest part of the Sun where the temperatures 27 million degrees Fahrenheit and its from its powerful eruptions to the steady stream of charged particles influences the nature of space throughout the solar system.
it consist about 70% hydrogen and 28% helium by mass, the outer layers of the Sun exhibit differential rotation like at the equator the surface rotates once every 25.4 days where as near the poles it’s about 36 days.
the Sun is not a solid body like the Earth, the Sun’s core The temperature is 15.6 million Kelvin and the pressure is 250 billion atmospheres and the Sun’s density is more than 150 times that of water.
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In comparison to animals, are humans adapted to their environment?
Explain your answer to the question above.
please need help ill put you under brainliest
Which molecule provides the amino acids that are assembled during translation ?
Answer:tRNA
Explanation:
Which component of roots is a differentiating region?
A. Stele
B. Cork
Answer:
if im mistaken, is it not apical meristem?
A. Stele
Explanation:
The stele is located in the region of differentiation. "It is found at the center of the root, bound by the pericycle. It contains the vascular tissues, xylem, phloem, and cambium."
Cork and apical meristems are undifferentiation and responsible for primary and secondary growth respectively.
Edmentum confirmed.
Can u give me and exmaple of a bacteria and a example of a virus (separatly) and one characteristic that they have in common? Thanks
Answer:
example of virus: coronavirus or megavirus
example of bacteria: Micrococcus
they are both microscopic microbes. Both of them can cause diseases in plants and animals. Both these types of microbes contain enzymes required for the DNA replication and protein synthesis.
Explanation:
hope this helps please mark me as brainliest
thank you!
X-rays are primarily used to?
Answer:
u r mom
Explanation:
In the process of photosynthesis, plants use carbon dioxide (CO2), water (H2O), and light energy to produce a sugar (C6H12O6) and oxygen (O2). In the process of aerobic respiration, animals and plants release energy from sugar and oxygen and produce carbon dioxide and water. The chemical equations that describe these reactions look like this:
6CO2 + 6H2O + light C6H12O6 + 6O2 C6H12O6 + 6O2 6CO2 + 6H2O + energy
How do these equations explain why the total amount of O2 and CO2 remains the same?
Answer:
During photosynthesis, to form 1 molecule of glucose, 6 molecules of CO2 is needed to be used as a reactant. 6 molecules of O2 is released as a by-product.
However, during aerobic respiration, to hydrolyse 1 molecule of glucose, you will need 6 molecules of O2 as a reactant, releasing 6 molecules of CO2 as by-product.
Essentially, the total amount of CO2 and O2 remains the same assuming the rate of aerobic respiration is the same as the rate of photosynthesis, resulting in no net gain or loss of both CO2 and O2 in the atmosphere.
What would happen if the tubing with the yellow band was placed in a beaker of distilled water?
Answer:
the distilled water to enter the tubing
Explanation:
This question is impossible to answer without knowing exactly what is in the yellow tubing, regardless we can assume that the solution in the tubing with the yellow band is more concentrated than distilled water. This being the case then this will cause the distilled water to enter the tubing due to it being hypotonic to the solution within the tubing which means it has a higher concentration of water.
What evidence does Dr. White use to describe the species Ardi as “neither a chimp, nor …human.”
Answer:
It means that the anatomical characteristics found by Dr. White, are different enough for him to affirm that what he found does not belong to the species of the Chimp or to the human being.
Explanation:
This question refers to the 4.4 million-year-old partial skeleton of Ardipithecus ramidus, which Dr. Tim White and his colleagues discovered in 1994. Upon realizing that this skeleton, possibly belonged to a primate, everyone was caught up in the research, thinking that it could be an ancestor of human beings, however, the anatomical characteristics of this skeleton, diverged greatly from those found in Chipanzé skeletons and human skeletons, which made Dr. Tim conclude that the skeleton did not belong to any of these two species and indicated a different species.