Answer:
Part A: It is possible that one of their children has cystic fibrosis because although neither of the parents has the disorder, both of them could still be carriers.
Part B: There is a 25% chance that one of their children has cystic fibrosis.
Explanation:
Part B: Draw a Punnett square to confirm. Cross Cc and Cc. You should get CC, Cc, Cc, and cc.
Compound Light Microscopes
1. Why would a scientist want to stain a specimen before observing it
with a compound light microscope?
A. To study the movement of the specimen
B. To increase the visual contrast in the specimen
C. To blur differences between structures of the specimen
OD. To increase the magnification power of the microscope
Check Answer
Answer: The correct option is B.
To increase the visual contrast in the specimen
Explanation:
Compound microscope is a microscope that consist of large lenses to enlarge images. Scientist normally stain specimen before they observed it under compound microscope because it will visualise the specimen and make some component of it to be visualise well. Some metabolic processes can also be differentiated and observed well.
why are genes that are located on the same chromosomes, or "linked", the exception to Mendel's law of indepent assortment
Answer:
they are ab exception to mendel's law because these genes are not inherited independently
Explanation:
3419059779 ppppppp1234
Answer:uh- Thank u for the free points kind sir or ma'ma also can u plz give me Brainlist have an good day! <3
Explanation:
Which statement about the use of independent variables in controlled experiments is correct?
1.
A different independent variable must be used each time an experiment is repeated.
2.
The independent variables must involve time.
3.
Only one independent variable is used for each experiment.
4.
The independent variables state the problem being tested.
Answer:
3. Only one independent variable is used for each experiment.
Explanation:
A controlled experiment is an experiment in which one variable is changed or tested at a time, while others are kept constant. In an experiment, one of the two major variables is INDEPENDENT VARIABLE. Independent variable is the variable that is changed or manipulated in the experiment.
In a controlled experiment, only one independent variable is used at a time i.e. ONLY one variable is changed or manipulated for each experiment. This is to ensure the validity of the experiment.
Under which of the following circumstances would natural selection not operate on an organism?
A) if there is no difference in fitness between individuals in a population, then natural selection will not operate.
B) if an individual in a population has not adapted, then natural selection will not operate
C) if more individuals are born than can survive, then natural selection will not operate
D) if there is no reason for a spiecies to evolve, then natural selection will not operate
Read the following sentence from the section "The
Satellites Layer."
But in the thermosphere, the
temperature can reach up to 4,500
degrees Fahrenheit.
What does the author mean by "up to 4,500
degrees"?
A
It cannot be any cooler than 4,500 degrees.
B
It has to always be at least 4,500 degrees or
hotter
С
It can get as hot as 4,500 degrees, but not
any hotter.
D
It is 4,500 degrees most of the time.
Answer:
The particles that cause the aurora are energized in the magnetosphere, that is, above the atmosphere. If they don't reach 10,000 volts, they will still cause auroral light. The lower energy won't change the wave length of the light, but will cause the light to be dimmer.
Explanation:
How variation leads to one clover being better suited to their environment than the other?
Answer and Explanation:
Clovers are plants that can contribute to livestock procedures to soil stabilization. Clovers increased forage yield, soil improvement and biological nitrogen fixation, land beautification, an extension of the growing season, and improved forage quality. Clover species have different characteristics. Some species are more tolerant of soil conditions, climate conditions and management regimes than other species. Clovers may also differ concerning the benefits they provide, such as if forage growth is desired at a particular time, one clover might be a good choice than another. It is important to keep in mind the traits of numerous clovers when the planting decisions are made. Other factors such as climate condition, soil condition and grower objectives are also essential factors influencing which clover will be the best plantation choice. Annual clovers complete their life cycle in one year. Annual clovers do not reproduce by vegetative propagation; they only reproduce from seed.
Which of the following is an ethical concern associated with the use of DNA fingerprinting in forensics?
A.) Does the process lead to false convictions of individuals?
B.) How many criminal trials will use DNA fingerprinting as evidence?
C.) Will the victims of crimes approve of the use of DNA evidence in a trial?
D.) Are there enough labs to carry out the genetic testing needed for DNA fingerprinting?
Answer: A
Explanation: human error
The study of the gene is called genetics.
The correct answer to the question is option A Does the process lead to false convictions of individuals.
What is DNA fingerprinting?DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation. A DNA sample taken from a crime scene is compared with a DNA sample from a suspect.The DNA of any person can get very easily placed in a crime scene which could hinder the investigation and can lead to a false conviction.
For more information about the question, refer to the link:-
https://brainly.com/question/787658
I NEED HELP ASAP !!!!!!!!!!!
If even light can´t escape through black holes, how is it pictured?
Answer:
Light cannot escape from within a black hole, but the matter falling into a black hole can get pretty hot before it falls in. This heating is due to the fact that matter accelerates near black holes. matter emits lots of light and other radiation as it falls into a black hole.
I hope this helps you!
Eating animals is an example of biotechnology.
O True
O False
Which process involves a decrease
in temperature?
The graph below shows the rate of alcoholic fermentation for yeast at different temperatures.
Rate of Fermentation Versus Temperature
100
Rate of
Fermentation
50
0
10
20 30
Temperature (°C)
40
Which statement could explain the data shown in the graph?
The molecules that regulate fermentation perform optimally at temperatures above 30 degrees Celsius.
The yeast begins releasing carbon dioxide at 30 degrees Celsius.
The yeast cannot survive above 30 degrees Celsius.
The mecdes that regulate fermentation perform optimally at temperatures below 10 degrees Celsius.
JESTOS
Answer:
The yeast cannot survive above 30 degrees Celsius.
Explanation:
Fermentation is a form of anaerobic respiration carried out by cells of certain organisms like yeast. The process yields products like carbon dioxide (CO2) and alcohol. Hence, the rate of fermentation can be measured by the amount of CO2 or alcohol produced.
According to this graph, which graph shows the rate of alcoholic fermentation for yeast at different temperatures, it can be observed that the rate of fermentation increased at 10°C and began to decrease at 30°C. This data portrays that yeast cannot survive above 30 degrees celsius (°C), hence, the rate of fermentation decreased.
What goes in the blank?
Meiosis is a life process associated with sexual reproduction. Which choice correctly summarizes meiosis into one statement?
O Haploid cells join and produce diploid daughter cells.
O Chromosomes in a haploid cell are pulled apart, creating two haploid daughter cells,
O Chromosomes in a diploid cell uncoil and line up, creating two diploid daughter cells.
Homologous chromosomes in a diploid cell separate and produce four haploid daughter cells.
Answer: fourth option: homologous and four haploid daughter cells.
Explanation:
Meiosis is a type of reduction division, in which the diploid parent cell gives rise to haploid daughter cells. Meiosis is a characteristic feature of sexual reproduction.
The correct answer is:
Option D. Homologous chromosomes in a diploid cell separate and produce four haploid daughter cells.
Meiosis is described as:
1. Meiosis gives rise to haploid daughter cells from the diploid parent cell.
2. Meiotic division is observed in the sexually reproducing organism.
3. The mechanism involves the separation of homologous chromosomes in diploid cells to produce four haploid daughter cells.
4. The separation in meiosis occurs through different stages, such as prophase, metaphase, anaphase, and telophase.
Thus, the separation of homologous chromosomes gives rise to four haploid cells in the meiotic division.
Therefore, option D is correct.
To know more about meiotic division, refer to the following link:
https://brainly.com/question/7002092
List the inputs and outputs of photosynthesis.What part(s) of the plant are responsible for taking in each of the inputs?
Answer: Light, carbon dioxide,water
Explanation:hope this helps! :>
A forest ecosystem can support a limited number of bears. This is because
Explanation: if there is too much the things the bears eat die quicker and then when they die the bears will start dyeing and if there is too little bears the thing bears eat will rise
Name the two characteristics air masses have based on where they form
Answer:
Air masses are also identified based on whether they form over land or over water. Maritime air masses form over water and are humid. Continental air masses form over land and are dry. Therefore, an air mass that develops over northern Canada is called a continental polar air mass and is cold and dry.Air Mass is an extremely large body of air whose properties of temperature and moisture content (humidity), at any given altitude, are fairly similar in any horizontal direction.
Explanation:
Drugs are substances that cause a change in a persons physical not mental state
Answer:
certain drug mess up the mental state as well... not all but some do...
Explanation:
Answer:
Drugs cause a change in someone's physical and mental state.
Explanation:
Drugs can lead to changes in your brain, they can affect your mood and so much more. That statement is false
Drag the tiles on the correct box
Answer:
1. Rocks in Earth's mantle and crust melt due to extreme temperatures and turn into magma.
2. Hot magma erupts as lava above Earth's surface during a volcanic eruption.
3. Being exposed to a cooler temperature, the lava starts to cool down quickly.
4. The lava solidifies into a rock formation with a fine-grained or smooth surface.
Explanation:
Igneous rocks (also called magmatic rocks) are rocks formed in the process of solidification of magma or lava. Igneous rocks formed above Earth's surface are referred to as extrusive, while those formed below the Earth's surface are referred to as intrusive.
There are several types of extrusive igneous rocks: andesite, basalt, dacite, obsidian, pumice, rhyolite, scoria, and tuff.
When lava cools down too quickly, volcanic glass is created.
Need helping naming
An individual running a marathon may experience periods of oxygen deprivation that can lead to
A. anaerobic respiration in muscle cells, forming lactic acid
B. acrobic respiration in muscle cells, generating glycogen
C. anaerobic respiration in liver cells, producing glucose
D. aerobic respiration in liver cells, synthesizing alcohol
Answer:
A. anaerobic respiration in muscle cells, forming lactic acid
Explanation:
Running marathon is a vigorous exercise, which often leads to excessive use of oxygen in the cells of the athlete. This causes the cells to switch from the aerobic (with oxygen) to the anaerobic (without oxygen) mode of respiration. This anaerobic respiration produces a product called LACTATE OR LACTIC ACID.
The lactic acid becomes excessive and gets stored in the muscle cells of the athlete. This often leads to cramps, muscle pulls etc. during the marathon. Therefore, an individual running a marathon may experience periods of oxygen deprivation that can lead to anaerobic respiration in muscle cells, forming lactic acid.
PLEASE HELP WITH SOME BIOLOGY ASAP!! THANK YOU AND GOD BLESS
Scientists often say that structure determines function when discussing biologically important molecules. Enzymes fit this description because...
A. Enzymes are uniformly shaped and versatile. The shape never changes.
B. Enzymes exist in many shapes and sizes. The shape of the enzyme is irrelevant and they are used interchangeably.
C. Enzymes are similar to other molecules and can mimic their functions.
D. Enzymes are a specific shape that helps catalyze specific reactions. Once the shape changes, the efficacy of the enzyme changes.
Answer:
D
Explanation:
the shape of the enzyme helps determine the chemical reaction it will be a part of
One cell phone contains many metals, including about 25 g
of aluminum, about 15 g of copper, about 0.03 g of gold,
and about 0.3 g of silver.
Based on this information, which resource is most likely used to make cell
phones?
A. A large river and its streams
B. An old-growth forest of tall trees
C. A farm with sheep and cattle
D. An underground deposit of minerals
The correct answer is D. An underground deposit of minerals.
Explanation
Metals are minerals, that is, they are natural substances that are normally in a solid-state. These resources are generally the product of physical-chemical processes that occur in the underground layers of the earth that transform different materials into these minerals. These minerals are obtained through mining, a process in which the earth's crust is broken until it reaches the place where these minerals are housed and in this way takes them to the surface to use them in the manufacture of different objects. Therefore, the correct answer is D. An underground deposit of minerals.
What makes plant cells green?
Answer:
chlorophyll
Explanation:
To demonstrate your understanding of how cells use ATP as an energy source for
cellular activities order the steps below into their correct sequence
Answer:
Adenosine triphosphate, or ATP, is the primary carrier of energy in cells. The water-mediated reaction known as hydrolysis releases energy from the chemical bonds in ATP to fuel cellular processes. Adenosine triphosphate (ATP), energy-carrying molecule found in the cells of all living things.
(Sorry if its incorrect)
Describe the connection between soil quality and water quality.
Answer:
The link between some of the given contexts is characterized below.
Explanation:
The soil, as well as the water, have been strongly interlinked. Implementation of biodiversity conservation just to focus on improving soil structure also strengthens water supplies. Healthy soils serve various tasks, including certain strengthening infiltration, maintaining water for irrigation, utilizing heavy metals, quantization stormwater runoff, as well as surface hardness.
30 points
Read the section "Brains Under Construction."
Select the paragraph from the article that suggests
specific regions of the brain can perform multiple
functions.
A. Let's break that down, starting with preteen
and teen behaviors. The brain region that tells
us we shouldn't eat chips all the time and
helps us resist that urge is the last to
mature. Called the prefrontal cortex, this
region doesn't fully develop until we are in our
early 20s.
B. "Most of our complex brain functions happen
in the prefrontal cortex, says Reichelt. This
includes complex math and reading, but she
notes that it also includes "how to assess risky
behavior."
C. In fact, these regions are even more sensitive
when we are young. That's because of a
natural chemical called dopamine. Dopamine
is sometimes called the "feel good chemical,
and it lifts our mood when we experience
something rewarding. And it is especially
active in adolescent brains.
D. The teen brain, thus, has two strikes against it
when it comes to resisting junk food. 'It has a
heightened drive for rewards and reduced self-
regulation," says Reichelt.
Next
Back
Answer:
yay
Explanation:
its A
What level in the hierarchy of biological organization are lipids, a class of organic compounds? Select the correct box.
A__ or change in a gene causes the disease hemophilia in 30% of cases of the disease.
Answer:
Hemophilia A is caused by disruptions or changes (mutations) of the F8 gene located on the X chromosome. Approximately 70% of cases are inherited as an X-linked recessive trait. In the remaining 30%, cases occur spontaneously (i.e. new mutation) without a previously family history of the disorder.
Explanation:
hope this helps
