The white cat is the recessive allele w, while the black cat is the dominant allele B. However, in the f1 generation, the dominant allele concealed the recessive features, but they are heterologous dominant, i.e. BBww in f2 second filial generation: Bw x Bw.
There are three black kittens and one white kitten when f2 second filial generation offspring are crosslets. Consider the genotype of white cat WW and black cat as BB in the first generation as it's given in question all the offspring of f1 generation are black giving a hint that black is dominant over white.
Now genotype of f1 offspring is wB now in the second filial generation where 2 offspring of f1 crossed the resultant offspring is 3 black kittens and 1 white kitten. second filial generation is the second filial generation of the offspring produced by inbreeding F1 people, whereas F1 generation refers to the first filial generation of the offspring from the parents. hence, the results are BB, Bw, Bw, and ww.
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Which of the following phrases describes
the term biodiversity? luo
A. species that have become extinct
B. the animals that live in an area
C. species that look different from one
another
D. the number and variety of species that
e live in an area
Answer:
The answer is D.
Explanation:
Because biodiversity essentially means the different kinds of animals you'll find in a singular (one) area.
what is the relationship between motor neuron and sensory receptor
Although the total distance the impulse travels in the reflex arc is less than 3
metres. the time taken is more than 0.04 seconds. Suggest why the time taken is
more than expected.
Although the total distance the impulse travels in the reflex arc is less than 3 meters. the time taken is more than 0.04 seconds and the time taken is more than expected because of Synapses or due to gaps between neurons.
Diagram displays the whole reflex arcs from the tip of the finger to the spinal cord and then back out to a closer muscle, possibly in the forearm or the arm. Because the signal doesn't have to go all the way back to the finger, the total distance is less than 3 meters. Considering that it just travels back a portion of the way, less than 3 meters, it takes. Let's see, it takes more than twice as long, therefore the query makes us think about why the delay. Where is the hold-up what is happening there, and the key to this is that the gray matter of the spinal cord doesn't truly contain mylin, despite the fact that we said it- accelerates electrical conduction through the axon in the nerves of the extremities. Mylin has a whitish color, which contributes to the white matter's appearance of whitishness. Thus, the electrical signal becomes slower.
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why is the earths atmosphere likened to a greenhouse?
Answer:
That's because the glass walls of the greenhouse trap the Sun's heat. The greenhouse effect works much the same way on Earth. Gases in the atmosphere, such as carbon dioxide, trap heat similar to the glass roof of a greenhouse. These heat-trapping gases are called greenhouse gases. earth's atmosphere is like the glass in a greenhouse because sunlight streams through the atmosphere and heats the Earth. As the heat radiates up from the Earth's surface, some escapes into space. The rest of the heat is absorbed by gases in the troposphere and warms the air.Greenhouse gases include carbon dioxide, methane, nitrous oxides, and water vapor. (Water vapor, which responds physically or chemically to changes in temperature, is called a "feedback.") Scientists have determined that carbon dioxide's warming effect helps stabilize Earth's atmosphere.greenhouse gases in the atmosphere absorb some infrared radiation and re-reflect it back to earth. 6. This causes the green house effect and results in an increase in average mean temperatures on earth.Greenhouse gases include carbon dioxide, methane, nitrous oxides, and water vapor. (Water vapor, which responds physically or chemically to changes in temperature, is called a "feedback.") Scientists have determined that carbon dioxide's warming effect helps stabilize Earth's atmosphere
Explanation:
Greenhouse gases include carbon dioxide, methane, nitrous oxides, and water vapor. (Water vapor, which responds physically or chemically to changes in temperature, is called a "feedback.") Scientists have determined that carbon dioxide's warming effect helps stabilize Earth's atmosphere
how do the hypothalamus and pituitary gland interact to control the release of the some of the hormones in the endocrine system
Answer:
Your hypothalamus communicates with the anterior pituitary lobe via hormones and the posterior lobe through nerve impulses. Through the stalk.
Why does an egg change color and texture when heated?
Answer: proteins uncoil and get tangled together. tangled proteins form a kind of mesh, which traps the surrounding water.
While heating two different samples of water at sea level, one boils at 102°C and one boils at 99.2°C. Calculate the percent error for each sample from the theoretical 100.0°C.
The percent errors are 0.8 percent and 2 percent
It is given that the theoretical boiling point of water is 100.0 degree celsius
When any impurity is added to water, its boiling and freezing points increase or decrease accordingly.
We are required to find the percentage error in calculation of freezing point or in simple words deviation from theoretical value of 100 degrees
We are given two temperatures
Case 1:
When the boiling point is 99.2 degree
deviation from theoretical value= 100-99.2 = 0.8 degrees
Percent error in calculation from theoretical value =deviation/original value x 100
= 0.8 /100 x 100 = 0.8 per cent
Case 2:
When the boiling point is 102 degree
deviation from theoretical value= 102-100 = 2 degrees
Percent error in calculation from theoretical value =deviation/original value x 100
= 2/100 x 100 = 2 per cent
Hence the percent errors are 0.8 percent and 2 percent
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what close it take to be a philosopher?
Answer:
Get a bachelor's degree in philosophy.
Going to an accredited university to earn your BA in philosophy is the first step in becoming a Philosopher. ...
Go to graduate school to earn your master's degree or PhD in philosophy. ...
Select an area of specialization. ...
Write a dissertation.
Explanation:
Julia, an economics professor, is giving a presentation on her research. What presentation delivery method should Julia use if she wants to broadcast her lecture to various places in real time?
A.
external monitor
B.
overhead projector
C.
presentation sharing website
D.
webcast
Answer:Webcast
Explanation:Plato
A cell devoid of tumor-suppressor genes would lose the ability to
Answer:
cells can divide without order and accumulate genetic errors that can lead to a cancerous tumor .
Are the lighter elements found at the top or the bottom of the periodic table?
Answer:
Top
Explanation:
mass increases from left to right and from top to bottom.
so lighter ones are at the top
Gambling away one's retirement savings in a single night would most likely be categorized as a(n)
Multiple Choice
crime.
infraction.
accident.
deviant act.
Answer:deviant act
Explanation:because why
There are many atoms of Hydrogen in the water on the planet. Do you think those atoms will still be in
existence a million years from now?
Answer:
The hydrogen atoms in the water on the planet will still be in existence a million years from now because the water we are drinking is already more than a billion years old. Also, the water cycle will continue to produce water through its cycle to make us rain water. The rain water will then be purified for other uses like personal cleaning and washing our everyday things/resources/materials.
Explanation:
Hope this helps :)
Is lactose a reactant, a product or neither? explain how you know.
Answer:
i think it is a reactant because when some people drink lactose they react a way to where their body's have trouble digesting it
Explanation:
Which scenario is an example of making inferences based on observations?
OA. A scientist collects honeybee specimens from each part of the life
cycle and creates a display.
OB. A scientist talks to various organizations about the importance of
preserving habitats vital to the survival of bees.
OC. A scientist publishes an article encouraging local farmers to plant
wildflowers to benefit wild bee populations.
D. A scientist analyzes the feeding patterns of honeybees and
determines that honeybees prefer nectar over pollen.
The example of making inferences based on observations is:
A scientist analyzes the feeding patterns of honeybees and determines that honeybees prefer nectar over pollen; option DWhat are inferences and observations?In the scientific method, observations and inferences are key step which help in understanding and explanation of the natural world.
Observation refers to the ability of the scientist to note and see changes or phenomena that occurs i his or her environment.
Inferences are conclusions which are drawn from either observations or experiments.
Considering the given scenarios, the instance of an observation is;
A scientist analyzes the feeding patterns of honeybees and determines that honeybees prefer nectar over pollen.In conclusion, observations are required in making of inferences.
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Pease help **I know the answer is not 3**
The graph indicates that amylase would function best in which environment?
1. Small intestine (pH 7.3)
2. Stomach (pH 2.0)
3. Pancreas (pH 8.0)
4. Mouth ( pH 6.7)
Answer: Pancreas
Explanation:
Amylase is found in two main areas – saliva in the mouth and pancreatic juice in the pancreas.
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which sentence best describes a monarch butterfly as a living system that is one part of a more complex system.
A it has four distinct life stages: egg, larva pupa, and adult
B its wings are covered in thousands of scales and tiny hairs.
C it can live for up to five weeks during the summer
D it interacts with other individuals in the monarch population
The sentence which describes a monarch butterfly as a living system that is complex is that it has four distinct life stages: egg, larva pupa, and adult and is denoted as option A.
What is a Complex system?This is referred to as a system which has different types of components which are interconnected or interrelated with one another and in this case are the four distinct life stages of a monarch butterfly.
They undergo complete metamorphosis which is characterized by the development from the egg to the larva pupa, and adult stages thereby making it a part of a more complex system.
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The cardiovascular system does NOT
carry the carbon dioxide exhaled by the pulmonary system.
carry the oxygen used by the muscles.
carry the nutrients absorbed by the digestive system.
carry the hormones released by the endocrine system.
control when muscles contract.
Answer:
transports oxygen and carbon dioxide for the respiratory system.
What is used to trap light energy in plants?
Answer:
chlorophyll
Explanation:
Most plants contain a special colored chemical or pigment called chlorophyll that is used in photosynthesis. Chlorophyll is what absorbs the sun's energy and turns it into chemical energy. Not all the light energy from the sun is absorbed. Sunlight has many different colors in it.
Which examples relate the law of mass balance to body homeostasis?
High levels of thyroid hormone in the blood inhibit further secretion of thyroid hormone.
An increased body temperature stimulates vasodilation of capillaries in the skin and activation of sweat glands.
Low blood glucose levels stimulate secretion of glucagon, which releases glucose into the blood.
Uterine contractions during labor stimulate the secrection of the hormone oxytocin, which stimulates
more contractions.
Water lost through sweat and urination is replaced by drinking water.
An increased body temperature stimulates vasodilation of capillaries in the skin and activation of sweat glands. and Water lost through sweat and urination is replaced by drinking water. relate law of mass balance to body homeostasis.
in the word homeostasis. Homeo: Similar Stasis: Condition -regulates internal environment
a propensity to preserve equilibrium or consistency on the inside; the control of any component of bodily chemistry, like blood sugar, at a specific level. sickness and illness will develop without homeostasis; it aids in the battle against poisons, cancer, viruses, and germs. Any benefit must be equaled by a corresponding loss. Existing body weight plus intake or metabolic production minus excretion or metabolic elimination equals mass balance -intake through the skin, lungs, and intestines outflow from the liver, lungs, kidneys, and skin
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are humans subject to environmental resistance in the same sense that other organisms are?
Answer:
the sum of the environmental factors (such as drought, mineral deficiencies, and competition) that tend to restrict the biotic potential of an organism or kind of organism and impose a limit on numerical increase.
What is a room designed to absorb sound called?
absorption chamber
echo chamber
anechoic chamber
reflection chamber
Answer: sound room or a sound proof room or studio
Explanation:
what treatment do you think he would need in this stage of the disease
Answer: Not enough information in the question.....
Explanation: We don't know the disease, or what stage he's in....
Which of the following are freshwater ecosystems?
Answers: ponds, lake, river
produces most of the food in the ocean.
Answers: Phytoplankton
Freshwater wetlands include and
Answers: marshes and swamps
is a measure of the amount of salt dissolved in water
Answers: salinity
Which biome is pictured above?
Answer: coral reef
is an excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
Answers: Eutrophication
Sunlight cannot penetrate deeper layers of the ocean so cannot happen.
Answers: photosynthesis
Most marine organisms live in
Answer choices:
A. shallow coastal waters
B. fisheries
C. deep ocean water
Data analysis
Aquatic Organism pH Range for Life
Clam 4.5 - 5.0
Snail 5.0 - 9.0
Bass 5.5 - 9.0
Crayfish 5.5 - 8.5
Mayfly 5.5 - 9.0
Salamander 6.0 - 8.0
Trout 6.0 - 8.5
Perch 6.5 - 8.5
Frog 7.0 - 9.5
To test acidity levels of water, scientists test the pH. As acid rain falls, the pH levels in lakes and streams decrease. While certain animals can tolerate low pH levels, others are extremely sensitive to the effects of acid rain and cannot live under the conditions. Once the pH of the pond drops below 5.5, we can expect which aquatic life form(s) to die out?
Answer choices:
A. trout and salamanders
B. clams and snails
C. perch
Answer:
Explanation:
The habitats that freshwater ecosystems provide consist of lakes, rivers, ponds, wetlands, streams, and springs. Use these classroom resources to help students explore and learn about these places.
Hope this helps :)
Which of the following is NOT an example of active transport?
a: endocytosis
b: facilitated diffusion
c: exocytosis
d: sodium potassium pump
Answer:
The answer is B.
Explanation:
Because Facilitated Diffusion is a type of passive transport.
Answer: the answer is B
it is because it is a passive transport
Explanation:
Receptor
K
Paper
cup
Questions
1. What happens when the vertical angulation is steep (+70°)? Is the shadow shorter or longer?
2. What happens when the vertical angulation is flat (+20°)? Is the shadow shorter or longer?
How does this relate to distortion?
The correct answers are shorter, longer, and have inverse proportionality and are used in dental radiography.
In the first case vertical angulation is what is used to control the length of any image which is being recorded and it is dictated by the holding device which directs the beam of x-ray perpendicular to both the receptor and teeth and in this case the image which is formed is shorter then the real teeth and it also occurs if the central ray is directed perpendicular to the plane of the receptor rather than to the imaginary bisector.
In the second case, the vertical angulation is flat or if it is too small the image of the teeth will be longer than the actual teeth and it often occurs due to bisecting technique.
Distortion is any kind of change that can occur in both the shape and size of the object and this is inversely proportional to the vertical angulation as when vertical angulation is not correct it creates distortion and also the steep is angulation the smaller the image will be and flat the angulation is the larger or longer the image is and in distortion which comes due to radiograph is mainly used for the teeth and the recommended angulation is +10 degree in which the central ray is directed through the contact of the teeth.
This is also called dental radiography.
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The gummy bear osmosis lab report
The Gummy Bear has a covering that is selectively permeable, allowing water molecules to pass through but blocking bigger molecules. Water molecules migrate into the bear in this osmosis experiment, expanding it.
A gummy bear is a solute, and water molecules are a solvent when you mix them together. Water now enters the gummy bear by osmosis because it doesn't already have any (remember that water was eliminated when the bear was formed). because the salt water contains more salt molecules than the gummy bear. The Gummy Bear gets bigger and smaller.
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Which model is conceptual?
A. A bar graph that shows how many students buy lunch each day
B. A graph that uses analyzed data to show the spread of a disease
C. A mental image of types of food organized into a pyramid
OD. A plastic skeleton that shows all the bones of the body
SUBMIT
The model that is conceptual is a mental image of types of food organized into a pyramid (option C).
What is a conceptual model?A conceptual model is the model that is represented by concepts or related concepts formed after a conceptualization process in the mind.
A conceptual model relates to concepts or mental conception i.e. existing in the imagination.
According to this question, the model that is conceptual is the mental image of types of food organized into a pyramid.
Note that; other options are realistic and can be seen.
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why do plants excrete more carbon dioxide at night than during the day?
A. Cellular respiration occurs only at night and not during the day
B. Cellular respiration occurs at a faster rate at night then during the day
C. Photosynthesis uses some of the carbon dioxide released during the day
D. The light-independent reaction of photosynthesis that releases carbon dioxide occurs at night
Answer:
C
Explanation:
they cannot do photosynthesis at night.
How can a camping fire turn into a forest fire