Answer:
focus
The Sun is at one focus. The planet follows the ellipse in its orbit, meaning that the planet to Sun distance is constantly changing as the planet goes around its orbit. Kepler's Second Law: the imaginary line joining a planet and the Sun sweeps equal areas of space during equal time intervals as the planet orbits.
how long after conception can you get a positive pregnancy test
Answer: Although many tests indicate you can test as soon as five days before your next period, the most accurate results will be obtained after you have missed your period and the earliest a test can provide an accurate reading is 14 days after conception. Tests differ in sensitivity in detecting HCG in the urine.
Explanation:
Which definition is the best for “semipermeable membrane”?
It is a barrier that prevents materials from moving from one side to the other.
It is a barrier that allows materials to move freely from one side to the other.
It is a barrier with tiny openings that let some, but not all, materials pass through.
It is a barrier that helps materials move from one side to the other.
it is a barrier with tiny openings that lets some ,but not all, matérials pass through
Answer:
C
Explanation:
within a forest ecosystem, there is a large amount of diversity among members of a warbler species. of the following stages of meiosis illustrated for a typical cell, which contributes most to diversity among the warblers?
Crossing over occurs between homologous chromosomes, and is closely involved in genetic variation. The stage that most contributes to diversity is stage C, where you can see chromosomes after crossing-over.
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There are different mechanisms involved in producing genetic variation among descendants. These are,
Crossing-over between homologous chromosomes (prophase 1), Random lining of homologous chromosomes (metaphase 1),Random fertilizationThe Crossing-over events occur between two homologous chromosomes in the equatorial plane and make the daughter cells genetically different from the original one.
The Chiasma is the position where two homologous chromatids interchange genetic information, giving a place for new genetic material or information to be provided to descendants.
After crossing over, homologous chromosomes get separated again.
In the attached imaged there are four different stages of meiosis.
Stage C is the one that contributes the most to diversity.
We can see that crossing over has already occurred between homologous chromosomes, and they have already interchanged segments.
In the image you will see the difference between chromosomes that has gone through the crossing over mechanism, and chromosomes that has not. The difference in color represents segments interchange and variation.
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help taking final will give the breian thing
what is your question? i cant download it
How does DNA analysis help scientists better understand evolution
On average, men have a basal metabolic rate (BMR) of 1.0 kilocalorie per kilogram per hour. Lawrence weighs 198 pounds. Calculate how much energy Lawrence expends for basal metabolism per day.
The energy Lawrence expends for basal metabolism per day is 2,160 kilocalories per day.
Basal metabolic rate is defined as the amount of energy that is used when an individual is at rest.
This energy is used for life sustaining functions such as:
breathing,circulation,nutrient processing andcell production.To calculate the Basal Metabolic Rate for Mr Lawrence,
Lawrence weight = 198 pounds
60
(convert pounds to kilogramme)
1 pound = 0.453592kg
198 pounds = x
xkg = 0.453592 × 198
= 89.8 kg
But BMR for average men = 1 kilocalorie per kilogram per hour.
That is, 1 kilocalories = 1 kg per hour
x kilocalories = 89.8 per day
Therefore for a day = 89.8 × 24 ( 24 hours = 1 day)
= 2155.469184
approximately. = 2,160kilocalories per day
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i can't see to figure out which one, if you do; please don't mind helping me out
Answer:
I believe that they are both C
You are maintaining a small population of fruit flies in the laboratory by transferring the flies to a new culture bottle after each generation. After several generations, you notice that the viability of the flies has decreased greatly. Recognizing that small population size is likely to be linked to decreased viability, the best way to reverse this trend is to cross your flies with flies from another lab.
A. True
B. False
Laura has a bacterial infection in her urethra, most likely Escherichia coli. How are the bacteria able to stay attached to the urethra, even during the full force of urination
1. Describe the flow of energy from the sun to a producer, like grass, and then to a consumer, like a rabbit. 100 points!!! Not a scam!
Answer: The sun produces energy to the solar panel the sollaer panel produces energy to my house
Explanation:
The Sun then provides energy to the grass via the photosynthesis process. The rabbit consumes the grass and absorbs its energy.
What is flow of energy?The flow of energy through living things within an ecosystem is referred to as energy flow.
All living organisms can be classified as producers and consumers, and those producers and consumers can be classified further as a food chain. Each level of the food chain is referred to as a trophic level.
The Sun then provides energy to the grass through photosynthesis. The rabbit consumes and absorbs the grass's energy.
Finally, the snake consumes the rabbit and absorbs its energy. Energy travels from the Sun and is consumed by each consumer along the chain.
Thus, this way, energy flows in an ecosystem.
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Sexual reproduction in animals depends on the production of gametes. Which of these processes produces gametes in animals?
Answer: in the ovaries of female, and the testes of male animals!!
Explanation:
Describe what would occur if you turned a growing seedling on its side (without disturbing the root system.) What is occurring inside the plant, and what hormone is involved? Be specific.
Phytohormones are responsible for the movement of plant towards stimulus. Auxin is the main phytohormone responsible for gravitropism and phototropism of plants.
What is Plant Movement?Plants are immobile however different parts of the plant show movements in response to the stimulus in the environment. The chemicals present in the plant body which are responsible for these movements are called phytohormones or plant hormones.
Auxins are the main hormones responsible for the cell elongation in plants. Auxins are responsible for the phototropism (movement of plant parts in response to light) and gravitropism (movement in plants in response to gravity).
Roots of a plant grow downward and exhibit positive gravitropism whereas stems on the other hand, exhibit negative gravitropism since they grow upwards and against the gravity. If you place a plant on its side or even upside down, the stem will curve its way up in response to gravity and auxin is responsible for this movement.
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A classmate states that both energy and matter can be created during photosynthesis and cellular respiration. Is this true? Explain
Energy and matter are also produced during photosynthesis.Chemical energy in the form of glucose and matter in the form of oxygen gas are produced during photosynthesis.Since these are the results of the reaction, they are regarded as process outputs.
Can both energy and matter be created during photosynthesis?
Some cells employ a process called photosynthesis to convert light energy into food.Because it enables plants to produce the food required for the rest of the ecosystem, photosynthesis is crucial.Producing organisms, or those that grow their own sustenance, are plants.The foundation of the ecosystem is formed by producers, who transform solar energy into chemical energy in the form of food for themselves and other ecosystem inhabitants.Although many ecosystems are dominated by plants, other organisms are also capable of photosynthesis.Some bacteria and algae are capable of photosynthesizing, and these organisms are the producers in their ecosystem. A biological process called photosynthesis consumes both matter and energy.The world's physical components are made of matter.The capacity to perform work is energy.By use of various mechanisms, matter and energy can be switched for one another.On the other hand, neither matter nor energy can be generated nor destroyed.The first law of thermodynamics is that they constantly evolve into new forms.All processes in the universe operate in this manner.Energy can be transformed into a variety of forms.Several instances include:Chemical drivekinetic energythe potential energy of gravityelastic force The substance and energy persist even after an organism dies.Instead, they are changed into other forms.For instance, both matter and energy are components of plants.Fungi and bacteria in the soil aid in the breakdown of a plant's internal substance into its constituent parts when it dies.These can be used by newly sprouting plants by being recycled into the soil.As a result, neither the energy nor the substance is wasted; rather, they are transformed into new forms.To learn more about photosynthesis refer
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If all the of the carbon dioxide were removed from the atmosphere, what effect would this have on plants?
Answer: Planet burn
Explanation:
no atmosphere
11. What occurs during the citric acid cycle?
a.
the formation of ATP
b. the release of carbon dioxide
c. the formation of FADH2
d. all of the above
Answer:
D. All of the above
End products of citric acid cycle: two GTP, six NADH, two FADH2, and four CO2
A scientist fills a glass container with water and places an aquatic plant inside the container, then closes the lid and places the
container in direct sunlight. The scientist observes small bubbles on the surfaces of the plant's leaves on days 1 and 2, but no
bubbles on day 3. The scientist concludes that the bubbles were caused by photosynthesis. Which substance should be
added to the water in order for the bubbles to reappear? (1 point)
Answer: Are there any options? you either add C02 because it has run out gas or you and in minerals that also contain C02.
Explanation: you need C02 to have photosynthesis, so with a closed off lid, the gas is going to eventually run out.
Carbon dioxide should be added to the water in the container in order for the bubbles to reappear in the glass container while placed in sunlight. Carbon dioxide is a component of photosynthesis.
What is Photosynthesis?Photosynthesis is the process by which plants prepare their own food in sunlight and in the presence of carbon dioxide gas. Photosynthesis process takes place in the chloroplast of cells.
Photosynthesis is an anabolic reaction in which carbon dioxide and water reacts in the presence of sunlight which is trapped by the chlorophyll present in the leaves of plant to produce glucose (carbohydrate) and oxygen gas, which is later utilized in the process of respiration.
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5. Interpret the experiment design and select what Elizabeth is likely to observe.
Answer:
Experimental design refers to how participants are allocated to the different groups in an experiment. Types of design include repeated measures, independent groups, and matched pairs designs.
Explanation:
hope it's helps you.....:)
many protists are single-celled organisms. which other characteristic is common to organisms in kingdom protista?
A child watches an older sibling playing with a ball but makes no effort to participate in the play. Which social character is the child exhibiting
Answer:
Onlooker play
Explanation:
In onlooker play a child actively observes other children playing and does not attempt to enter into the activity; the child is interested only in observation and not in participation. In parallel play children play independently among other children. In pretend play children act out any event of daily life and practice the roles and identities as established in their surroundings. In associative play children play together and are engaged in a similar or identical activity.
1. An is a circulation of a
convection cycle of air.
Answer:
True
Explanation:
If antenna length in Mendaliens is controlled by a single gene and long is dominant to short and two Mendaliens with Long antenna have some offspring with short antenna, what is the genotype of the Mendalien parents
there are multiple possibilities but one of them is that both parents are heterozygous dominant (one capital and one lowercase letter)
Which reactanat makes cellular respiration more efficient than fermentation when making ATP?
a
Oxygen
b
Glucose
c
Water
d
Carbon Dioxide
Answer: glucose I think?
Explanation: I’m not sure but it should be more efficient.
Which type of competition happens
between two organisms of the same
species?
A. interspecific
B. intraspecific
C. invasive
Answer: intraspecific competition
hopes this helps.
Answer:
A. Interspecific is my best guess.
Explanation:
“Inter” means inside, so I’m guessing it would relate to the organisms being of the same species. “Intra” means outside. And invasive just doesn’t make any sense.
A scientist hypothesizes the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female.the dependent variable is.
Answer:
The temperature
Explanation:
In an experiment, the factor we meadure is called the independent variable. Here, temperature of an alligator's egg determines whether the alligator is male or female, so temperature is the independent variable.
In deserts there’s a strong environmental pressure to conserve water. How did cactuses evolve to meet this pressure?
Answer:
Cacti evolved in the way that they are able to hold watter within themselves and their cells.
Explanation:
Cactuses have evolved in such a way that their roots and leaves hold water as long as possible. This gives the capability of cacti to meet this environmental pressure in order to conserve water.
What are the special adaptations of the cactus?Under desert climates, cacti have various numerous unique adaptations in order to facilitate their survival in the same habitat. It includes its roots, leaves as well as stems that enable it to thrive in desert environments.
These adaptations include: Leaves are reduced to spines to reduce water loss through transpiration. Wide and deep roots absorb rainwater on the surface and reach the underground deep water.
Therefore, cactuses have evolved in such a way that their roots and leaves hold water as long as possible.
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Which feature is characteristic of rivers?
Answer:
A. a weak or strong current
Explanation:
hope this helps
Answer:a weak or a strong current
Explanation:
how does a cystoplasm’s structure relate to its function
Which of the following choice completes the diagram?
A. Credit card companies
B. Issuer banks
C. Banks
D. All of the choices
what part of the brain is responsible for happiness
Clusters of ganglionic sympathetic neurons that innervate organs in the abdominopelvic region are called ________ ganglia.
Explanation: Clusters of ganglionic sympathetic neurons that innervate organs in the abdominopelvic region are called Intramural ganglia!!! Hope This Helps! Happy Early Christmas! :D
