Answer:
He is either not carrying the gene for RP or the RP gene has mutated.
Explanation:
RP or Retina Pigmentosa is an eye defect inherited by a person from a parent. The disease is degenerative as the individual gradually loses his sight. It normally starts off as night-blindness and could go as bad as a total loss of sight.
The mutation of both the RPGR and RP2 genes which are responsible for the function and structure of light-reception in the eye accounts for most cases of Retina Pigmentosa disease.
Science is hard bro-science be hard.
Answer:
2nd drop down is computer or adc. 3rd drop down is ADC. 4th is DAC
Explanation:
Answer:
the brain
Explanation:
it cant tell the future
i have to sh*t oh no its coming out oh no its all over my hands
Assume that the unaided human eye has a limit of resolution of about 0.25 mm. What was the limit of resolution of Hooke's microscope
Answer and Explanation:
The Hooke microscope was designed by the famous British scientist in the 1600s. Robert Hooke only design the microscope; actually, the microscope was made by instrument maker.
Robert Hooke's design improved microscope illumination and mechanism, which enhance the magnification to 50X and improved resolution.
Robert Hooke was the first man who coins the name cell after observing angular spaces that saw in a thin cork section. He used a compound microscope to observe the pores in the cork.The Hooke microscope and telescope have some common features, such as a socket and ball joint for disposing of the body, separate draw tubes and an eyecup to retain the correct distance between eyepiece and eye. The microscope body tube was made of wood. Hooke used a bi-convex objective lens, tube lens and two additional lenses. The resolution limit of the microscope depends on how well a lens focus light. We do not know we have exact information about the resolution of the Hooke microscope. However, by using the magnification power of the instrument, we can estimate the resolution limit. Hooke microscope has 30X magnification power.
The limit of resolution of Hooke's microscope was 8.3 μm.
The Hooke's microscope was developed by the scientist Robert Hooke in the late 1600s in order to observe cellular structures.Hooke's microscope consisted of a bi-convex objective lens and two additional lenses.The resolution of Hooke's microscope was 8.3 micrometers (μm), where 1 μm is equal to 1×10−⁶ m.In conclusion, the limit of resolution of Hooke's microscope was 8.3 μm.
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Why are bones hard and elastic at the same time? Explain your answer.
Give examples how bones protect our inner organs.
Explanation:
Bones provide support for our bodies and help form our shape. Although they're very light, bones are strong enough to support our entire weight.
Bones also protect the organs in our bodies. The skull protects the brain and forms the shape of the face. The spinal cord, a pathway for messages between the brain and the body, is protected by the backbone, or spinal column. The ribs form a cage that shelters the heart and lungs, and the pelvis helps protect the bladder, part of the intestines, and in women, the reproductive organs.
Bones are made up of a framework of a protein called , with a mineral called calcium phosphate that makes the framework hard and strong. Bones store calcium and release some into the bloodstream when it's needed by other parts of the body. The amounts of certain vitamins and minerals that you eat, especially vitamin D and calcium, directly affect how much calcium is stored in the bones.
How does the final number of chromosomes in each cell compared to the starting number of
chromosomes in both cells?
Answer:
Double
Explanation:
Each haploid cell contributes half the chromosomes
Cell division is the process in which the genetic material and cytoplasm are divided to produce the daughter cells. The cell division can be mitotic or meiotic.
The division of chromosomes can be distinguished into:
Mitosis is the process of cell division in which the number of chromosomes in the parent cell is similar to the daughter cells. The mitotic division occurs in the somatic cells of an organism. The meiotic division is the process in which the number of chromosomes in the parent cells is halved. The meiotic division occurs in the reproductive cells of the sexually reproducing organisms.
Thus, the final number of chromosomes will be 46 in the mitotic division, whereas, in the meiosis, it will be half the parental chromosomes.
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WILL GIVE BRAINLIEST
Read the quotation below:
"Nature is messy. Science is tentative. As long as these truths remain relevant to biological research, scientific names will continue to be revised." -R. Aidan Martin
What does this quotation suggest about how a classification system needs to function to support modern science? (2 points)
(a) It needs to provide a strictly limited system to reduce confusion and disarray.
(b) It must be flexible enough to adapt to new discoveries and still provide a meaningful framework.
(c) It needs to loosely group similar organisms until all organisms are fully studied.
(d) It must have enough categories to accommodate all future discoveries while retaining its original structure.
Answer:
B
Explanation:
Answer:
The answer is B-It must be flexible enough to adapt to new discoveries and still provide a meaningful framework. because I got it right on the flv's test.
Explanation:
fWhat are components Of RNA
Answer:
A Nitrogenous Base
A Five-Carbon Sugar
A Phosphate Group
Answer:
dna is the component well 1 of them cant rember the rest
Will give Brainliest
Which of the following pieces of evidence supports that species change due to certain genetic variations? (2 points)
(a) Darwin's theory of evolution was incorrect, as it did not account for variation in a species.
(b) Natural selection causes variation but cannot cause the evolution of a new species.
(c) Mutation and natural selection both cause changes in a population.
(d) Changes in a population abruptly occur as a direct response to the environment.
Answer:
I think it is C?
Explanation:
Answer: Its C
Explanation:
I took the test and got it right
Which of the following are examples of sexual reproduction?
Answer:
I'm gonna need the examples to answer this!
Explanation:
i think it is A frog releases sperm over eggs that were laid by another frog, and these cells fuse together. and A pollen grain from one flower fertilizes another flower, resulting in the development of a seed.
The graphs show the age structure for each of three countries. The horizontal bars show the percentages of the population in each age group, by gender. Note that for Country 1, about 20 percent of the population is between the ages of 0 and 4. This is the greatest percentage of any 4-year age span in all three countries.
Country 1 has an age structure in which ages 0-4 represent 20% of the population, and older age groups have decreasing percentages. Country 2 has age groups that are all about the same. Country 3 skews to older age groups.
Which conclusion about Country 1 does its age structure support?
A. Young children have a lower death rate in Country 1 than in the other countries.
B. Young children have a higher death rate in Country 1 than in the other countries.
C. More young children live in Country 1 than in the other countries.
D. Fewer young children live in Country 1 than in the other countries.
Answer:
C. More young children live in Country 1 than in the other countries.
Explanation:
The described graph shows that more young children live in Country 1 than in the other countries. This is clearly stated in the first paragraph: This is the greatest percentage of any 4-year age span in all three countries. This automatically means that options B and D are incorrect.
Option A is the second-best one. However, the fact that there are more young children in Country 1 doesn't necessarily mean that their death rate is lower. It could be, but correlation doesn't equal causation. There are more young children probably because the younger population is more present in that country and more children are born.
This is why option C is the correct one.
The greatest snowfall on a single day in recorded history occurred in Silver Lake, Colorado, in April, 1921. Approximately how many inches fell?
Answer:
87 Inches
Explanation:
In 27 1/2 Hours
Answer:
75.8 inches of snow fell in Silver Lake
if a less concentrated initial solution of sodium bicarbonate was used in beaker C would that solution require more or less bicarbonate to neurolize the acid
Answer:
It depends on the concentration of acid in the solution.
Explanation:
If the acid present in the solution is in concentrated form then the salt i. e. sodium bicarbonate is also used in concentrated form in order to neutralize the acidic solution while on the other hand, if a solution is less acidic then less concentrated amount of sodium carbonate is used to neutralize the acid solution so the concentration of sodium bicarbonate is used according to the concentrated of acid in the solution.
HELP ME please!!!for which planet is the length of the planets day longer than a planets year?
Answer:
Venus
Explanation:
:)
What is one trait that could be used to separate these albatrosses into two groups of two birds each
Answer: Large group of solid black feathers vs. Black and gray patterned feathers
Explanation:
QUESTION IS INCOMPLETE. It shows 4 different groups of animals:
Short-tailed albatrossShy albatrossWandering albatrossLaysan albatrossAlbatrosses are among the largest flying birds, forming a family of large seabirds distributed throughout most of the Antarctic, Pacific and South Atlantic oceans. They have the largest wingspans which allows them to move very efficiently in the air with little effort. They feed on squid, fish and krill, either by picking up dead animals or by capturing their live food at the surface of the water or by diving.
To answer this, we can use the dichotomous key which is a tool that allows the identification of organisms. There are keys to determine animals, plants, fungi, bacteria, protista, protozoa or any other living being; keys that reach the level of species, genus, family or any other taxonomic category. A dichotomous key is based on definitions of morphological, macroscopic or microscopic characters, from which two possible solutions are derived, depending on whether or not they have a certain character, repeating the process of defining characteristics, until the organism in question is reached.
In this example, we should look at the colors and patterns on their plumage and beaks. With that information, we can separate these albatrosses into:
Large group of solid black feathers vs. Black and gray patterned feathers.
Answer:
The one trait is the wing color. One group can be separated into solid black wings and the other group can be separated into black/white wings.
Explanation:
The map shows the location of Earth's principal biomes.
Tropic of
Cancer
Equator
Tropic of
Capricorn
Earth's principal biomes
Savanna Desert Chaparral
Tropical
forest
Temperate
forest
Tundra
Mountains
Polar ice
Boreal
forest
Temperate
grassland
Which abiotic factor in tropical forests do boreal forests lack?
polar ice and grass land because
TII
MULTIPLE CHOICE QUESTION
Heat is being transferred to this
rabbit through:
Radiation
Convection
the color pink
Conduction
Answer:
radiation i believe
Explanation:
yuhhhhhhhhhh
Answer:
I think the answer is radiation. sorry if it's wrong
Your kidneys, the main organ of the excretory system, work with the
blood.
system, to filter liquid waste from your
A)
circulatory
B)
digestive
c)
immune
D)
nervous
Eliminate
Answer:
C
Explanation:
Answer:
C
Explanation:
Match each term with its best definition
Convergent plate
boundaries
Blocks of rocks falling into magma
Divergent plate
boundary
Places where tectonic
plates smash together
Magma chamber
Magma forced into
fractures
Stoping
Cavity where magma
resides
Injection
Area where tectonic plates
pull apart
Stopping is the blocks of rocks falling into magma. Convergent plate boundaries are the places where tectonic plates smash together. Injection is when the magma is forced into the fractures.
What are the Convergent plate boundaries?A convergent plate boundary results when the tectonic plates converge, the one with thin oceanic crust subducts beneath the one which are capped by the thick continental crust. A subduction zone generally consists of the material that are scraped off the ocean floor near the coast and a chain of volcanoes farther inland.
Stopping is the blocks of rocks falling into magma. Convergent plate boundaries are the places where tectonic plates smash together. Injection is when the magma is forced into the fractures. A magma chamber is a cavity where magma resides. A divergent plate boundary is where the tectonic plates pull apart.
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stoping- Blocks of rocks falling into magma
Convergent plate boundaries- Places where tectonic
plates smash together
injection- Magma forced into
fractures
magma chamber- cravity where magma resides
Divergent plate boundary- Area where tectonic plates
pull apart
what side of the body is the gluteus maximus on?
Answer:
Gluteus Maximus the largest and heaviest muscle in the body. It is the most superficial of all gluteal muscles that are located at the posterior aspect of the hip joint.
what is a Null Hypothesis in biology?
Answer:
The null hypothesis is a typical statistical theory which suggests that no statistical relationship and significance exists in a set of given single observed variable, between two sets of observed data and measured phenomena.
:)
what biologist first discovered single-celled, animal-like organisms?
Answer: Anton van Leeunwenhoeck
Explanation:
The biologist who first discovered single-celled, animal-like organisms is Anton van Leeunwenhoeck. He's also regarded as the father of microbiology.
He was a scientist as well as a Dutch businessman who help in laying the background for plant anatomy. He also found the blood cells which he normally viewed using the microscope.
How does sunlight affect hummingbirds in the Yellowstone ecosystem
Answer:
Explanation:
Humming birds are birds that can fly very high and can flap their wings at about 80 times per second. When the fly high and pass through sunlight, the light ray's hit their feathers and cause a reflection on it. This Ray's create a rainbow effect prism on the wings because the light radiations are scattered or defeated through the wing surface.
An organism will have both genotype and a phenotype for a specific trait. If we are considering what trait
is physically expressed, this is ______
If we consider the genetic basis of
the trait, this is ______
Answer:
If we are considering what trait is physically expressed, this is the phenotype. If we consider the genetic basis of the trait, this is the genotype.
Explanation:
An individual's genotype is the collection of its genes. When we talk about individual traits, the term genotype refers to the combination of alleles that determine it. For example, our eye color will depend on our genotype.
An individual's phenotype includes its observable characteristics. It's mostly influenced by the individual's genotype, but there are other factors that influence it as well - epigenetic changes and environmental factors. For example, flamingos aren't naturally pink. They are naturally white but turn pink because of the pigments found in the organisms they feed on. Their genotype dictates the white color, but because of environmental factors, they are pink (their phenotype).
C6H1206
+ 02
Turn on Show input/output formula to check. Were you
correct?
6. Challenge: To balance the inputs and outputs of cellular respiration, there should be the same number of
carbon, oxygen, and hydrogen atoms on each side of the arrow.
A. Is the formula balanced as written? Why or why not?
Answer:
This question is asking to complete and balance the equation as follows:
C6H1206 + 602 → 6CO2 + 6H2O
Explanation:
The equation described in this question is that of cellular respiration, which is the process whereby glucose is broken down to release energy (ATP) needed by the cell.
- The inputs of this equation are glucose (C6H1206) and oxygen (O2).
- The outputs of the equation are carbon dioxide (CO2) and water (H20).
According to this question, to balance the inputs and outputs of cellular respiration, there should be the same number of carbon, oxygen, and hydrogen atoms on each side of the arrow as follows:
C6H1206 + 602 → 6CO2 + 6H2O
Note: the equation is not balanced as it is written in the question.
You are a volunteer at one of Pusat Pemindahan Sementara during this recent flood incident in Malaysia. Suddenly, a young lady came to you and asked you to check on his father who complained pain on his central chest.
He looked anxious and sweating profusely. He also had difficulty in breathing. His daughter informed you that her father had history of IHD, hypertension and hyperlipidemia.
On examination, the vital signs are:
HR: 65 beat/min
RR: 20 breaths/min
BP: 94/70 mmHg
SpO₂: 90%
While you were checking on his vital signs, he suddenly become unconscious.
What would be the information you wanted to know during history taking?
Explain the possible diagnoses for the patient.
Describe the management for the patient at scene before the arrival of medical team.
Answer:
join my meeting
ID-9384026088
password :– 1234
Identify the way that leptin produced by fat cells of adipose tissue in the abdomen can send a signal to the neuroendocrine cells in the hypothalamus
Answer:
Leptin is a protein hormone composed of 167 amino acids of the cytosine family, it is synthesized mainly by white adipose tissue. The leptin receptor is related to that of receptors for cytosines (since it uses Janus or JAK type kinases and STAT-3 proteins as intracellular mediators of transcription pathway), it is predominantly found in the hypothalamus (particularly in the arcuate nucleus and to a lesser extent in the nuclei dorsomedial and ventromedial), hippocampus and cerebellum. There is evidence that leptin acts at the level of the arcuate nucleus, preventing the formation of NPY.
Explanation:
Leptin is produced exclusively in adipose tissue cells in a wide variety of species, including humans, and its concentration is higher in overweight than in lean individuals. The biological actions of leptin can be classified into two groups, those that are exerted in the tissues of the central nervous system, mainly the hypothalamus, and those that are carried out on the peripheral tissues. The former regulate body weight downward, decrease food intake, increase basal energy expenditure and modify some neuroendocrine functions such as reproduction, while the latter have effects on proliferation, differentiation and metabolism of peripheral tissues. The leptin that reaches the hypothalamus, in addition, inhibits protein synthesis and the secretion of neurons producing NPY / AgRP of the arcuate nucleus and stimulates the synthesis and secretion of those containing POMC. NPY (neuropeptide Y) is produced in the hypothalamic arcuate nucleus. This neurotransmitter arrives through the projections of the neurons of said nucleus to the paraventricular nucleus, which is the area where it is released. There are several studies that have shown that an increase in NPY leads to an increase in the sensation of hunger and thus to hyperphagia and obesity. Leptin acts at the level of the arcuate nucleus, preventing the formation of NPY. The leptin receptor lacks enzymatic activity in its intracellular domain. Instead, it is linked to members of the janus kinase family, which belong to a class of tyrosine kinases. The binding of the ligand activates the Jak kinase and leads to the phosphorylation of certain cytoplasmic proteins. Within these proteins there is a class of cytoplasmic transcription factors called signal transducers and activators of transcription (STAT).
A protein hormone synthesized majorly by white adipose tissue is leptin. It is secreted from the fat cells or adipose tissue of the body and concerns fat and obesity.
The obese individual has a high amount of leptin compared to a lean person.
The leptin works on tissues of the CNS mainly the hypothalamus and PNS. Leptin binds to members of the Janus kinase family of the tyrosine kinases class.
The ligand-binding triggers the Jak kinase and results in the phosphorylation of specific cytoplasmic proteins that includes the class of cytoplasmic transcription factors named signal transducers and activators of transcription (STAT).
CNS controls body weight, reduce food intake, improve basal energy expenditure and modify some neuroendocrine processes like reproduction.
PNS affects the expansion, metabolism and differentiation of peripheral tissues.
The leptin that moves towards the hypothalamus impedes protein synthesis and the secretion of neurons producing NPY / AgRP.
NPY (neuropeptide Y) is formed in the hypothalamus and arrives through the outgrowths of the neurons of the arcuate nucleus. It moves towards the para-ventricular nucleus from where it is released.
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What 2 processes do plants use to grow?
Answer:
photosythesis
Explanation:
I only know one which is photosynthesis
Answer:
Photosynthesis 2. fertilize
Explanation:
carbon cycle in the Mediterranean biome
Explanation:
The northwestern Mediterranean Sea (NWMS) is biologically one of the most productive Mediterranean regions. NWMS pelagic planktonic ecosystem is strongly influenced by hydrodynamics, in particular by deep convection that could significantly weaken under the influence of climate change. Here we investigate the response of this ecosystem and associated carbon cycle to the long‐term evolution of oceanic and atmospheric circulations. For that we developed a tridimensional coupled physical‐biogeochemical model and performed two groups of annual simulations under the climate conditions of respectively the 20th and the end of 21st centuries. Our results suggest that the evolution of oceanic and atmospheric circulations does not modify the NWMS pelagic planktonic ecosystem and associated carbon cycle at a first order. However, differences mainly induced by the deep convection weakening and the surface warming are obtained at a second order. The spring bloom occurs 1 month earlier. Resulting from the decrease in nutrients availability, the bottom up control of phytoplankton development and bacteria growth by the nitrogen and phosphorus availability strengthens and the microbial loop intensifies as the small‐sized plankton biomass increases. Carbon net fixation and deep export do not change significantly. The choice of the biogeochemical initial and boundary conditions does not change the representation of the ecosystem seasonal cycle, but the associated uncertainty range can be one order of magnitude larger than the predicted interannual and long‐term variabilities. The uncertainty range of long‐term trends associated with the physical forcing (hydrological, atmospheric, hydrodynamical, and socioeconomic) is much smaller (<10%).
Please help with the question
Answer: D. Invest in clean, cost-effective energy
Explanation:
Greenhouse gas emissions are clogging the atmosphere leading to global warming on the planet. This is causing temperatures and sea levels to rise.
There is therefore a need to invest in energy that is clean and will reduce greenhouse gas emission especially in the electricity industry. This can include renewable sources such as sustainable hydroelectricity and solar energy.
anyone know this?? pls help me
Answer: 4
Explanation: When an object is red-shifted, it means the object is rapidly moving away from you. Distant galaxies are red-shifted because they are rapidly expanding outwards away from you.
Can someone do 1-5 pleaseeeeeeeeeeee
Answer:
1 is runoff
2 is coral reef
3 is open ocean
4 is barnacle
5 is plankton
Explanation:
