Answer:
4
Explanation:
Producers are at the bottom of the energy pyramid because they prove the most energy, they make up most of the population, which is biomass. And the producers have the largest population, which is why they are at the bottom of the pyramid of numbers. Finally they are at the bottom of food chains and webs because they store the most energy inside of them.
Which of the following best describes an atom?
Protons, neutrons, and electrons all grouped together in the center.
O
A core of negatively and positively charged particles surrounded by neutral particles...
A.core of positive and neutral particles surrounded by negative particles.
A core of electrons and neutrons surrounded by protons
Explanation:
A.core of positive and neutral particles surrounded by negative particles.
Answer:1st one
Explanation:
Its protons,neutrons,and electrons all grouped togrther in the center. O
Which of the processes offers the GREATEST evolutionary advantage of sexual versus asexual reproduction?
А
meiosis
B В
mitosis
С
budding
D
binary fission
Answer:a
Explanation:
The process that offers the GREATEST evolutionary advantage of sexual versus asexual reproduction is MEIOSIS.
Meiosis is a type of cell division that is used by organisms of sexual reproduction to produce haploid (n) gamete cells.Meiosis produces new genetic variation in offspring due to:
the random separation of alleles in gametes when chromosomes separate crossing-over or recombination which is the interchange of genetic material between non-sister chromatidsgametes randomly fuse to produce a diploid (2n) organismIn conclusion, the process that offers the GREATEST evolutionary advantage of sexual versus asexual reproduction is MEIOSIS because it is capable of introducing new alleles and increasing genetic variation in a population.
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Which normal meiotic event would be the MOST LIKELY explanation for the mutation that causes Williams Syndrome? cytokinesis
Answer:
a
Explanation:
because
I am the mythological figure who ferried the dead across the River Styx into Hades (the underworld). Who am I? (Hint: I am a moon)
Answer:
Charon
because it is the name of the son of Erebus and Nyx and it is the name of the largest of Pluto's five moons
Answer:
Charon
Explanation:
Charon, in Greek myth, is the son of Erebus and Nyx, his duty was to ferry over the Rivers Styx and Acheron with the dead.
i need help answering these questions
Answer: A
Explanation:
Why are sex-linked traits more common in males than in females?
a.All alleles on the X chromosome are dominant.
b.All alleles on the Y chromosome are recessive.
c.A recessive allele on the X chromosome will always produce the trait in a male.
d.Any allele on the Y chromosome will be codominant with the matching allele on the X chromosome
Answer:A
Explanation:
Sex-linked traits are more common in males than in females because all alleles on the X chromosome are dominant.
What do you mean by sex-linked traits?Sex linked describes the sex-specific patterns of inheritance and presentation when a gene mutation is present on a sex chromosome rather than a non-sex chromosome. In humans, these are termed X-linked recessive, X-linked dominant and Y-linked.
And in humans this is the X or the Y chromosomes. And so some of the more familiar sex-linked traits are hemophilia, red-green color blindness, congenital night blindness.
Sex-linked traits are characteristics that are determined by genes located on the sex chromosomes. Inheritance patterns for these traits can differ for males and females, since the X and Y chromosomes differ.
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Plz help me!! will mark brailyest!!!
how does tempature impact air movement?
Answer:
The heating of the earth, which in turn heats the atmosphere, is responsible for the motions and movements of the air in the atmosphere. The faster molecules move, the hotter the air. As the molecules heat and move faster, they are moving apart.
Explanation:
Answer:
As you move higher off the ground, it gets colder *and vice versa*.
Explanation:
When we move off the ground, density is pulled down to the ground due to gravity. Therefore, it gets colder. It's also because of our atmosphere. (Vice versa, of course)
P.S. Density and gravity are also key parts of climate change, keep that in mind.
Where is a suitable place for getting tested for a sexually transmitted infection (STI)?
at a clinic
at a drugstore
at home
at a friend’s house
Answer:
the answer to this is at a clinic
Explanation:
its more save there
Clinic is a suitable place for getting tested for a s exually transmitted infection (STI).
If an STI is left unchecked the problem can get worse. Many STIs can be effectively treated and those that can't be cured can often be better controlled with treatment.What is STI?S exually transmitted diseases s exually transmitted infections are generally acquired by s exual contact. The bacteria, viruses or parasites that cause s exually transmitted diseases may pass from person to person in blood, semen, or v aginal and other bodily fluids.Signs and symptoms that might indicate an STI include:
Sores or bumps on the g enitals.Painful or burning urination.Discharge from the p enis.Unusual or odorous vaginal discharge.Unusual v aginal bleeding.To know more about STIs here
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How far does an animal have to travel to obtain the abiotic factor water?
Answer:
Three fourth of the total earth is covered with water, 97 percent of which is there in sea's as saline water, the other 2 percent is there in the form of glaciers and the left out 1 percent is there as ground water.
Water is presence is abundance but it depends upon the geographical location where the animal is looking for water. There will be scarcity of water in the deserts because there is less rainfall over there, so it depends on the geographical location.
Please Help me find 5 safety violations or more
Answer:
no goggles, smelling the substance and not wafting it, there is liquid on the ground, not being careful of surrounding (the person holding the box), and someone is on the ground during an active experiment
Explanation:
what charge does sg have
Answer:
Explanation:
Seaborgium is a synthetic chemical element with the symbol Sg and atomic number 106. It is named after the American nuclear chemist Glenn T. Seaborg. As a synthetic element, it can be created in a laboratory but is not found in nature. It is also radioactive; the most stable known isotope, 269Sg, has a half-life of ... nuclei (all positively charged) repel each other due to ...
If the Earth is neither tilted toward or away from the Sun, then the northern 1 point
hemisphere will experience ---
A-spring or fall
B-summer or spring
C-summer or fall
D-fall or winter
Answer:
b
Explanation:
What are the best keyboard switches?
I'm building a mechanical keyboard and what switches should I order?
Answer:
go ask this on reddit not brainly
Explanation:
how does an inclined plane affect the work that is done on an object?
When an organism consumes other organisms for food they are called heterotrophs. When organisms can create their own food they are called autotrophs. Which kingdoms are autotrophic, heterotrophic, and which can be either? Animalia: Plantae: Protista: Fungi:
Answer:
Kingdoms that are autotrophic-
Plantae
Kingdoms that are heterotrophic-
Fungi
Animalia
Protista could be either or.
I think there is something about yeast than all the rest of fungi but you will have to look that up.
Explanation:
how does the sporophyte obtain nutritions?
Answer:
The gametophte is generally green and photosynthetic and obtains water and other nutrients from the soil by direct absorption into it's cells .
Explanation:
Which activity would be within the field of biology
Answer:
B, measuring the rate of squirrel births in a woodland habitat.
Explanation:
Biology is the study of life so anything that's considered living would be around this field.
Answer:
Explanation:
B measuring the rate of squirrel births in a woodland habitat
Which is the role of restriction enzymes?
to isolate the selected gene
to cut DNA into fragments of different lengths
to move and separate the strands of DNA
to join the sticky ends of DNA fragments
Answer:
to cut DNA into fragments of different lengths
Explanation:
A restriction enzyme is a protein that recognizes a specific, short nucleotide sequence and cuts the DNA only at that specific site, which is known as restriction site or target sequence.
More than 400 restriction enzymes have been isolated from the bacteria that manufacture them. In live bacteria, restriction enzymes function to defend the cell against invading viral bacteriophages. Restrictions sites in the viral genome (a "happy accident" of nature, as far as the bacteria are concerned, since they don't appear to have any specific function in the virus) are cleaved by the bacterium's restriction enzymes, fragmenting and destroying the DNA of invading bacteriophages before it can incorporate into the host's genome and take over the cell.
A bacterium is immune to its own restriction enzymes, even if it has the target sequences ordinarily targeted by them. This is because the bacterial restriction sites are highly methylated, making them unrecognizable to the restriction enzyme.
Isn't evolution fantastic?
The correct answer is option C i.e. to cut DNA into fragments of different lengths.
what is restriction enzyme?A restriction enzyme is a bacterial protein that cleaves DNA sequences at sequence-specific places, resulting in DNA fragments with known sequences on both ends.
Certain laboratory processes, such as recombinant DNA technology and genetic engineering, require the use of restriction enzymes.
There are four different types of restriction enzymes: type I, II, III, and IV, which differ principally in structure, cleavage site, specificity, and cofactors.
Both restriction and methylase functions are carried out by a single big enzyme complex in Types I and III enzymes.
The restriction enzyme is independent of its methylase in the Type II system.
Several thousand type II restriction enzymes have been identified from a variety of bacterial species.
These enzymes recognize a few hundred distinct sequences, generally four to eight bases in length.
Type III restriction enzymes are a group of endonucleases that recognize a non-pallindromic sequence, comprising two inversely oriented sites.
Type IV restriction enzymes cleave only methylated DNA and show weak sequence specificity.
hence, the correct answer is option B.
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Why is mitochondria regarded as power House of the cell.
Why is chromosome responsible for transmission of traits.
Answer:
Mitochondria are known as the powerhouse of the cell because it is responsible for the extracting energy from food through cellular respiration. The energy is released in the form of adenosine triphosphate (ATP) it is an energy currency of the cell.
Explanation:
What is the most common in a cell?
Answer: A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. so i would say one of those.
Explanation:
plewaseee helppppppppppp For sediment to be transformed into rock, which set of processes must take place?
crystallization and solidification
weathering and erosion
compaction and cementation
melting and spreading
Answer:
I am pretty sure it is B, weathering and erosion. Hope this helps!
Answer:
I’m not fully sure but I think it’s c, crystallization & solidification
hope this helps
Will award 80 points
Gametes contain ______ copy/copies of each gene.
Two
Four
One
Thee
Answer:
one
There may be many possible alleles for any gene, but a diploid cell or animal contains only two alleles of each gene or two copies of a single allele; a haploid gamete contains one copy of each gene, so only one allele.
Which processes provides evidence for the claim that energy is transferred
during cellular respiration? Select all correct answers.
A. The electron transport chain
B. Carbon dioxide is released
C. hydrogen ions move down the concentration gradient across the inner membrane
D. transfer of electron carriers such as NADHand FADH2
E. water is formed
Answer:
B. Carbon dioxide is released
E. water is formed
Explanation:
Cellular respiration is defined as the metabolic processes in which chemical energy is converted into ATP and the waste product is released by the cells.
The processes that provide evidence for the claim that energy is transferred during cellular respiration are Carbon dioxide is released and water is formed. During cellular respiration, oxygen and glucose are converted into carbon dioxide and water, and the energy is transferred to ATP.
Hence, the correct answers are "B and E".
Answer:
OPTION B&E.
Explanation:
WHEN ANYTHING UNDER GOES COMBUSTION IT RELEASES CO2.
in one sense the animal classification system above the species level is artiffical. In another sense, however, it is real explain the paradox
Answer:
Yes it does
Explanation:
thank you
Use the word MAGMATISM as an acronym. Use each letter to represent
word/s that is related to the lesson.
M
A
G
M
A
T
I
S
M
Answer: See explanation
Explanation:
When volcanic eruptions occur, there are a lot of magma i.e. molten rocks that are formed under the volcano. This formation of the magma and their movement is referred to as magmatism. The magmatic process has an impact on the way magma melts.
Magmatism can be used as an acronym in the following way:
M - Molten
A - Assimilation
G - Geology
M - Mountain
A - Active volcano
T - Tectonics
I - Igneous
S - Seismograph
M - Melting
Selectively permeable membranes are important in cell function. What makes a membrane selectively
permeable?
A
The ability to remove bacteria from the cell.
B The ability to use energy to make proteins used in the cell.
The ability to modify, sort and package proteins and lipids for storage or
C
transport out of the cell.
The ability to allow needed materials to enter and wastes to exit as well as the ability to block
unneeded materials from entering the cell.
D
Answer:
The ability to allow needed materials to enter and wastes to exit as well as the ability to block unneeded materials from entering the cell.
Explanation:
A selectively permeable cell membrane only allows some things to go through it, therefore this answer choice is the correct one because it is explaining how it is selectively permeable.
When a molecule passes between the phospholipids of the cell membrane it is
called?
Answer:
Water also can move freely across the cell membrane of all cells, either through protein channels or by slipping between the lipid tails of the membrane itself. Osmosis is the diffusion of water through a semipermeable membrane
HELP MEEEEEEEEEEEE
what are the two samples of DNA that are needed in order to identify the DNA as belonging to a specific person
Answer:
most common samples used today Blood and Hair
Answer: A known and Unknown sample of DNA is needed.
Explanation: The known sample of DNA is the sample that has the person that is suspected to be related to the unknown sample, which is the sample that is from an unknown source.
An organism is a
A. body of water
B. piece of the Earth's crust
C. living thing
D. part of the atmosphere
Please select the best answer from the choices provided
A
state two differences between DNA and RNA in each give two examples
Answer:
Hope this helps you. I am very sorry for my handwriting .