Answer:
I'm confident that the answer would be
D - both A and B
;)
Explanation:
big brain
Answer:
D
Explanation:
took the test
How many valence electrons are in an atom of each element in Group 15 in the periodic table?
Answer:
5 valence electrons.
Explanation:
Group 15 can also be called group 5A, meaning that elements in this column contain 5 valence electrons.
The periodic table's Group 15, often known as the Nitrogen Group, contains elements that have five valence electrons.
Nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi) are among the elements that make up group 15. The 2p orbital is where the valence electrons of these elements are situated.
All Group 15 elements, with the exception of nitrogen, which has only 3 valence electrons, have 5 valence electrons since the valence shell can only accommodate a maximum of 8 electrons.
These elements can easily establish covalent connections with other elements thanks to their five valence electrons.
Thus, this characteristic helps explain their chemical reactivity and capacity to create a wide range of chemicals.
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The diagram shows the field lines near the poles, X and Y,
of two magnets
Based on the field lines, what are the poles of the
magnets?
X: north
Y south
X: south
Y north
X: north
Y north
Y
X: south
Y south
Mhandreturn
Save and Exit
NOMI
Submit
Answer:
D
Explanation:
X:South
X:South
Which is a reason cells divide?
A) to prevent tumor formation
B) to have smaller surface area
C) to reproduce
D) to stop binary fission
In which of the following ways is meiosis similar to mitosis
A. One parent makes four daughter cells
B. It occurs in eukaryotic cells
C. Daughter cells are not alike
Answer:
a
Explanation:
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dna determines the structure of proteins produce by cells?
Answer:
A Proteins combine to produce cells, which produce DNA. B Proteins are made up of DNA, which determines the cells that are produced. C DNA is made up of proteins, which tell a cell how to function.
Explanation:
Select the correct answer.
What is ozone?
A. dissolved oxygen
B. the main catalyst in photosynthesis
C. a type of oxygen
D. a form of calcium carbonate
A trait that helps an organism to survive and reproduce is called an...
a. Adaptation
b. Allele
c. Variation
d. Selection
Answer:
Adaptation
Explanation:
a change or the process of change by which an organism or species becomes better suited to its environment.
A trait that helps an organism to survive and reproduce is called adaptation. The correct option is a.
What is adaptation?An organism can survive under adverse environmental conditions by changing its shape, physiology, and genetic makeup through the process of adaptation. This happens as a result of natural selection and evolution.
An organism is said to be adapting when it makes changes in response to its environment. These changes help organisms to survive in extreme conditions.
In biology, adaptation is the process by which a species adjusts to its environment; it results from natural selection operating over many generations on heritable variation.
Therefore, the correct option is a. Adaptation.
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Which kind of succession occurs AFTER a large forest fire?
A. Primary succession
B. Secondary succession
Answer:
B
Explanation:
I know someone already gave an answer but it was wrong. I know this because I was marked wrong when I chose primary succession.
When building a spacecraft what are the 3 things NASA is most concerned about?
Answer:
If the ship is strong enough to support the launch. If the ship can withstand high pressure and temperature rates. If the material is resistant and light at the same time.Explanation:
When a spacecraft is built, many tests must be carried out over the years to prove that the spacecraft has the ability to launch into space and fulfill its mission efficiently. In addition to supporting the launch, these ships need to be built in a way that will withstand space conditions that are very different from terrestrial conditions.
For this reason, there is a concern if the ship can withstand extreme situations of temperature, pressure, gravity, weight, among others. In summary, we can say that three of the biggest concerns that NASA has in building spaceships are:
If the ship is strong enough to support the launch. If the ship can withstand high pressure and temperature rates. If the material is resistant and light at the same time.Which is true of cycles in an ecosystem ?
A.non living things release waste into the environment
B. Producers transfer all of the energy
C. Consumers make use only of matter
D. Matter moves in cycles and energy is transferred
HELP ME PLS!
Animal shown below is known as a mule. The mule is a hybrid of horse and donkey.
Body cells of horse contain-64 chromosomes, while body cells of donkey-62 chromosomes.
A- Gametes of horse contains _____ chromosomes.
B- Hair cells of mule contains ______ chromosomes.
C- Type of cell division which produces gametes: _____
Answer:
A-32 B.63 C. Meiosis
Explanation:
A. Gametes has haploid [half] number of chromosomes.
B. The gametes from each organism has haploid number of chromosomes and during gametogenesis this gametes fuse to form 63 chromosome which is for the new organism-the mule.
C. Meiosis is a form of cell division in which the parent cell divides to daughter cells which have half reduced number of chromosomes.
The temperature of the areas surrounding El Campo before Storm 1 and before Storm 2 was about 15°C, and there was the same amount of water vapor in the air.
Storm 2 had more rainfall than Storm 1.
What were the conditions before Storm 2, and why did more rainfall with those conditions?
i will give 30 pts PLZ ANSWER ASAP
Answers:
The temperature of the surronding areas of El Campo is the same.
Before storm 2, El Campo will have been warmer than before Storm 1 and windy. Wind pushed the warmer air parcel even higher and the air parcel lost more energy.
Explanation:
Weather patterns refers to repeated way weather occur for days, or weeks or for a time. Weather pattern is caused by heat from the sun and movement from the air.
In El Campo, the temperature of the surronding area is the same.
If an air parcel is higher than the surronding air, it will rise. When the air parcel has higher temperature, it will rise very high and loses energy which result in rainfall.
The temperature of the surrounding areas of El Campo should be the same. Prior to storm 2, El Campo will have been warmer as compared to before Storm 1 and windy.
What are weather patterns?It means the repeated way with respect to the weather that should be arise for days or in can be weeks. It should be caused by heat from the sun and the movement can be done from the air.
In the case when the air parcel should be more than the surrounding air so it will rise. At the time when the air parcel contains the high temperature so it will increase very high also the energy should be lost that leads in rainfall.
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What is a genotype and what is a phenotype? Also what are dominant and recessive alleles and how are they written out?
Answer:
An organism's genotype is its specific combination of alleles for a given gene. ... The phenotype is the physical manifestation of an organism's allellic combination (genotype). For the pea plants, if the red allele is dominant and the white allele is recessive, only two phenotypes are possible.
Explanation:
I need help on this question and this is kinda hard for me
Answer:
the answer is b
Explanation:
Answer:
a) spraying the crop for invasive pests before they are spotted.
Explanation:
What is one way intensive agriculture can contribute to climate change?
Answer:
C. Large herds of livestock release greenhouse gases
Explanation:
At every stage of production of food, food provisioning releases greenhouse gases into the atmosphere. Farming in particular releases significant amount of methane and nitrious oxide, two powerful greenhouse gases. Agriculture Baat contributes to climate change and is affected by climate change
Answer:
C
Explanation:
AP3X
The fact that light can exert a pressure on matter suggests that it is made of particles called _____. photons electrons protons neutrons
PLZ HELP WILL MARK BRAINLEST
Match each vitamin or mineral to a symptom of its deficiency.
vitamin A
potassium
calcium
zinc
problems with fluid balance
thinning bones
vision problems
poor wound healing
Answer:
Vitamin A- vision problems
Potassium- problems with fluid balance
Calcium- thinning bones
Zinc- poor wound healing
Explanation:
What three traits are used to classify organisms
Answer:
These organisms are classified together because they are made up of eukaryotic cells. Characteristics like structure, function, and method of reproduction further classify the organisms into smaller groups called kingdoms.
Explanation:
hope this helps
These organisms are classified together because they are made up of eukaryotic cells. Characteristics like structure, function, and method of reproduction further classify the organisms into smaller groups called kingdoms.
What are cells?Cells are the smallest alive element; tissues are a group of organized cells; organs are a group of tissues that form a complex structure with a special function; organ systems is a group of organs working together to ensure good biological performance; organisms are living things formed by an organized collection of systems.
A female undergoing asexual reproduction would have offspring that have 100% of her genes, whereas a sexually reproducing female typically passes only 50% of her genetic material to her offspring. It can produce more offspring in a given time is sexually reproducing organisms.
Therefore, These organisms are classified together because they are made up of eukaryotic cells. Characteristics like structure, function, and method of reproduction further classify the organisms into smaller groups called kingdoms.
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Read the following summary, which describes a body process. Then, answer the question.
Blood enters the right side of the heart and travels to the lungs. There, the lungs eliminate carbon dioxide and exchange it for more oxygen. The oxygen-rich blood enters the left side of the heart. Then, arteries carry blood away from the heart.
What process is being described?
Group of answer choices
Circulation
Excretion
Immune response
Respiration
Answer:
the answer is respiration
Answer:
respiration or C
Explanation:
PLEASE 30 POINTS!!
Please select the word from the list that best fits the definition
The stage in which meiosis occurs and spores are produced in a plant
gametophyte
sporophyte
sexual plant reproduction
asexual plant reproductoin
Answer:
sporophyte
Explanation:
produces spores by meiosis within a sporangium
Answer:
soryophite
Explanation:
True or False Some Crystals form from minerals dissolved in liquids
Answer:
True
Explanation:
crystallisation- liquids cool to a solid-state to form crystals.
What are two reasons bees are important beyond making honey
Answer:
Bees are perfectly adapted to pollinate, helping plants grow, breed and produce food. They do so by transferring pollen between flowering plants and so keep the cycle of life turning.
The vast majority of plants we need for food rely on pollination, especially by bees: from almonds and vanilla and apples to squashes. Bees also pollinate around 80% of wildflowers in Europe, so our countryside would be far less interesting and beautiful without them.
Answer:
bees provide air and food but 1 third of all food we eat comes from bees
Explanation:
Which of the following is an important environmental strategy? a. drinking less water c. adopting stray animals b. using pesticides d. protecting habitats
Answer:
i do not care im doing it for the points
Explanation:
2. What is a genetic disorder?
3. What is a congenital disorder?
4. What is an example of a non-genetic conge
Answer:
1. A genetic disorder is a disease that is caused by a change, or mutation, in an individual’s DNA sequence.
2. A birth defect, also known as a congenital disorder, is a condition present at birth regardless of its cause. Birth defects may result in disabilities that may be physical, intellectual, or developmental.
3. There are no examples (I'm not entirely sure of this)
Explanation:
What can government, industry and individuals do to lessen the negative impact on the environment ?
Please help its a final
Answer:
bit complicate uno
Which of the following can limit the growth of a population of organisms
Answer:
-lack of food in the area
-more predators
-envirment changes
-over population
Explanation:
How are gene pairs written out?
Answer:
Gene pairs are written out by writing a combination of two capital or lowercase letters.
Explanation:
Which is true of the regions near earth’s equator
Answer:
They are more likely to have high temperatures
Explanation:
The major cause of global warming is
sun flare pollution
biological magnification
mono-culture farming
burning fossil fuels
Hey there!
Answer:
Burning fossil fuels
Explanation:
Greenhouse gases are the main human causes of global warming.They basically act like a warm blanket around the earth and trap heat. Causing the earth to get warmer and temperatures to rise.
The two main greenhouse gases we add to the air are methane and carbon dioxide.
The main source of carbon dioxide is the burning of coal,oil,gas and petrol(fossil fuels)in power stations.
We produce far more carbon dioxide than any other greenhouse gas. And its production has been on the rise since the industrial revolution.
So the burning of fossil fuels resulting in carbon dioxide is the main cause of global warming.