what is biodiversity? ​

Answers

Answer 1

Answer:

Biodiversity is the variety of life. Most people recognize biodiversity by species a group of individual living organisms that can interbreed. Examples of species include blue whales, white tailed deer, white pine trees, sunflowers, and microscopic bacteria that can't even be seen by the naked eye.

Explanation:

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Related Questions

3.The two phases of photosynthesis are _____ reactions and _____ reactions._____. DOC 1
a.)glucose-dependent
B)glucose-independent
C.)light-independent
d.)light-dependent

Answers

Answer:

c

Explanation:

needed for

photosynthesis

which sensory receptors are involved in hearing

Answers

Answer:

The cochlea is filled with two fluids (endolymph and perilymph), and inside the cochlea is the sensory receptor, the Organ of Corti, which contains hair cells, or the nerve receptors for hearing.

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Mechanoreceptors are involved in hearing, which transmits the signals from external stimuli through mechanical ion-gated channels.

What is the structure of the ear?

The organ of the Corti on the basilar membrane has hair cells that are involved in the sensory mechanism for hearing.

In the inner ear, there are six receptors (cochlea, two otolith organs, and three semicircular canals) which make a transduction unit consisting of hair cells.

In these receptors, external stimuli transmit the signal through the mechanically gated channel, external stimuli are touch, pressure, and hearing.

This processed signal to the brain by the neurons to hear the sound, and all the signal accumulate through the primary sensory receptors which are hair cells in the ear.

Therefore, mechanoreceptors are involved in hearing.

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The given question is incomplete, so the most probable complete question is,

which sensory receptors are involved in hearing?(1 point) responses thermoreceptors thermoreceptors photoreceptors photoreceptors chemoreceptors chemoreceptors mechanoreceptors

As time progressed and technology improved, microscopes were able to give clearer images of extremely tiny objects. How did this development advance the cell theory?
please be sure that you include at least 3-4 full sentences

Answers

Answer: plz give brainlist

Robert Hooke is accredited with observing the first cells in 1665. At that time, Robert Hooke used a microscope to look at cork cells.

In 1670, Antoni van Leeuwenhoek was accredited with being the first scientist to discover pond life. He used lenses to make the discovery.

Robert Brown (1773-1858) used a microscope to discover the nucleus.

Why is meiosis important in maintaining genetic diversity?

Question 6 options:

A Meiosis creates diversity by cutting each chromosome exactly in half.


B The two different chromosomes of the organism producing the sex cell (egg or sperm) are mixed up during crossover, creating a new combination of alleles.


C It creates sex cells (eggs or sperm) that have exactly the same alleles (version of a gene) as the parents.


D The chromosomes in meiosis are copied so they are exactly the same as the organism producing the gamete, except they have just one copy.

Answers

Answer:

We now know that meiosis is the process of chromosomal reduction which allows the production of haploid germ cells necessary for sexual reproduction. Meiosis is furthermore important for its role in enabling genetic diversity and facilitating the repair of genetic defects through recombination.

Explanation:

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Meiosis is a specialized form of a cell division in which number of chromosomes is reduced to half. The reduction in chromosome number is achieved by one round of DNA replication and two rounds of chromosome segregation.    

Meiosis produces genetic variation by the process of recombination.Recombination occurs when two molecules of DNA exchange pieces of their genetic material. The process of recombination occurs during the prophase stage of meiosis I. In meiosis, crossing over occurs between the non-sister chromatids in a homologous pair (one from each parent) of chromosomes.

The correct answer is option B. The two different chromosomes of the organism producing the sex cell (egg or sperm) are mixed up during crossover, creating a new combination of alleles.

Other options-

A. Meiosis creates diversity by cutting each chromosome exactly in half - incorrect .In meiosis the chromosome number is reduced to half.

C. It creates sex cells (egg or sperm) that have exactly the same alleles (version of a gene) as the parents-incorrect. The sex cells produced are not genetically identical to the parent cell.

D. The chromosome in meiosis are copied so they are exactly the same as the organism producing the gamete, except they have just one copy-incorrect. In meiosis the chromosomes are not exactly copied.

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Since transport of materials in and out of the cell can only happen at the cell's surface, what happens as cells get larger? How does this impose a limit on cell size?

Answers

Answer:

The surface area/volume ratio will decrease

Explanation:

How does this impose a limit on cell size?

Because the ability of a cell to exchange substances with its environment is proportional to its surface area.

Hence, if surface area/volume decrease and get too small, surface area is not sufficient to take up substances needed to support metabolism or get rid of wastes.

Which star may have once been similar to our sun in mass and luminosity?
A. Deneb
B. Spica
C. Procycon b
D. Proxima centauri

Answers

Answer:

c. procycon b :)

Which is NOT Part of the Cell Theory
A. All living things have cells
B. Cells must have complex interworking parts
C. All cells reproduce
D. Cells are the smallest unit that perform life functions​

Answers

Answer: B

Explanation:

Cells do not have to have complex interworking parts, they just have to do the job for the body. The answer is B.


14. All the animals in Jurassic Park were_____ to control the populations.

Answers

Answer: Female

Explanation:

Females cant mate but somehow “life found a way”

Indicate whether a solution will have more OH– or H+ if the pH value of the solution
is 10.

Answers

A pH level of 10 is very alkaline, and one indicator of a solution being an base would be that it was a hydroxide (OH-) therefore the solution would have more OH- .

The solution with a pH value of 10 will have more OH- ions.  

In chemistry, pH is described as a scale that is specifically utilized to specify the basicity or acidity of an aqueous solution. The pH of different solutions are described as follows:

Acidic solution: If a solution has pH<7, then the solution is acidic and tend to have more H+ ions than OH- ions Neutral solution: The solution is neutral when pH=7 and the concentration of H+ and OH- ions are the same Basic solution: If a solution has pH>7, then the solution is Basic and tend to have more OH- ions than H+ ions

Thus, in this case, pH>7 and thus we can conclude that the solution will have more OH- ions than H+ ions.

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7. China was the largest emitter of greenhouse gases in 2008. TRUE or FALSE:

Answers

Answer:

True

Explanation:

Googled It

...............

Answer:

true

Explanation:

What is the answer to this please help

Answers

Answer:

C The correct sequence of the transfer of information in most organisms is DNA to RNA to protein.

Explanation:

Gene expression involves the flow of information from DNA molecules to the formation of proteins. Information first flows from DNA molecules to RNA through a process called transcription.  Transcription is the first step of gene expression in which an RNA especially the mRNA is synthesized from a DNA molecule by RNA polymerase enzyme.  Then the synthesized mRNA is taken to the cytoplasm where it undergoes the translation process to form proteins.

Help due tomorrow what is it please help??

Answers

Answer: Erosion is the correct answer

The function of an enzyme depends upon the enzyme's shape and

Answers

Answer:

The activities of enzymes also depend on the temperature, ionic conditions, and the pH of the surroundings. 

Explanation:

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- Which pair of features is correct for both a human liver cell and an Escherichia coli bacteria cell?

Answers

Answer:

contains DNA associated with protein, contains naked DNA

Explanation:

E coli are prokaryotes with naked DNA found in the cytoplasm. In contrast, human liver cells contain DNA present in a nucleus, a membrane-enclosed organelle. The DNA is associated with proteins (forming a structure called chromatin).

Human liver cells contain mitochondria, but E Coli do not contain membrane-bound organelles.

Eukaryotic ribosomes are larger than prokaryotic ribosomes. Eukaryotic ribosomes are 80S in size, prokaryotic are 70S in size.

My parents jus order the ps5 they just told.me it will be here next weel​

Answers

Answer:

U IS LUCKY A F

Explanation:

HOPE U ENJOY IT

Answer:

i also have a ps5

Explanation:

Is the following sentence true or false? The apparent change in the
frequency and wavelength of a wave as it moves toward or away from an
observed is know as the Doppler effect.

True or False

Answers

Answer:

True

Explanation:

Doppler's effect is the apparent change in the wavelength and frequency of a wave as it moves towards or away from an observer.

The relative motion between the observer and the source causes changes to the wavelength and frequency. This effect is the doppler's effect. When a source moves closer, the frequency of the wave increases. For example, we see that effect of water ripples when a stone is dropped in still water.


5. The image above is an example of which boundary?
a. Transform boundary
b. Convergent boundary
Divergent boundary
d. All of the above

Answers

Answer:

Divergent

Explanation:

Answer:

Im smart so the answer is "blah blah blah" saying the correct right answer

Explanation:

2. How are the atmosphere, hydrosphere, and lithosphere related in the biosphere?

Answers

Answer:

These spheres are closely connected. For example, many birds (biosphere) fly through the air (atmosphere), while water (hydrosphere) often flows through the soil (lithosphere). In fact, the spheres are so closely connected that a change in one sphere often results in a change in one or more of the other spheres.

Explanation:

i hope this helped

please help. i am confuse and trying to figure out

Answers

Answer:

your right

Explanation:

u clicked on the right answer

⚠️⚠️⚠️Describe what occurs between water molecules in hydrogen bonding. Explain where the hydrogen bond happens.

Answers

The partially positive hydrogen atom of one molecule is then attracted to the oxygen atom of a nearby water molecule

A hydrogen bond in water occurs between the hydrogen atom of one water molecule and the lone pair of electrons on an oxygen atom of a neighboring water molecule.

Why do you think in the table below, Adenine and Thymine have almost the same number – but not exactly?

Nucleotide

# found in genome

Adenine

701,234,142

Guanine

803,127,160

Cytosine

803,127,162

Thymine

701,234,146

Answers

Adenine pairs with thymine and Guanine pairs with cytosine. The numbers are not exactly the same because of the mutations that happen in DNA. Some of the DNA could be broken off or put somewhere else in the gene that would throw everything off, nothing is perfect. However in a perfect world, both adenine and thymine would have the same numbers.

Which of the following insulate against the cold? (Choose one: lipids, carbohydrates, nucleic acids, proteins).

Answers

Answer:

lipids

Explanation:

The area where an organism gets everything it needs is called its

Answers

Answer:

D

Explanation:

The place where an organism lives and that provides the things the organism needs is called ist habitat...

Is it possible for it to rain at 0° F? (not snow)

Answers

im pritty sure no but my friend says yes somthing called frezzing rain sooooo

Thermal specialists versus thermal generalists and the idea of thermal niche

Answers

Answer:

elaborate

Explanation:

If 35% of the bases in a region of the mouse genome are cytosine, what percentage in that region are adenine? 

A. 15%

B. 20%

C. 30%

D. 35%

E. 40%

Answers

Answer:

A. 15%

Explanation:

DNA is composed of four nitrogen bases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). Chargaff's rule of base pairing states that A always pairs with T, while G always pairs with C. The total distributed percentage of the four 4 nitrogen bases must be equal to 100%. In this case, the C content is 35%, thereby G=35% (i.e., equal to C content), while the remaining 30% must be equally divided between T=15% and A=15%.

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How can competition contribute to evolution through natural selection?

Answers

Answer: During competition, organisms that have favorable traits for this task will survive and are said to be selected. These organisms will reproduce and pass on those traits to their offspring. Thus, the frequency of organisms with those traits will increase

Explanation: In Darwin's theory on the mechanism of evolution, competition among living things is viewed as a major part of the “struggle for existence” and therefore as a basis for natural selection (Darwin 1872).

Intraspecific competition occurs between members of the same species. For example, two male birds of the same species might compete for mates in the same area. This type of competition is a basic factor in natural selection. It leads to the evolution of better adaptations within a species.

modeling DNA Mutations Table
base sequence of mutated strand

Answers

Answer: Only a single codon in the gene sequence is changed in base substitution mutation. Although a base substitution alters only a single codon in a gene, it can still have a significant impact on protein production.

Explanation:

_________ is required for energy given to proteins in the phospholipid layer.
a.Anaerobic
b.Aerobic
c.Active transport
d.Turgor
e. Passive transport

Answers

Answer:

A

Explanation:

Active transport is required for energy given to proteins in the phospholipid layer (Option c).

Active transport is a type of transport across a cell membrane that requires energy, usually in the form of ATP, to move substances (either molecules or ions) against a gradient of concentration.

Conversely, passive transport refers to the movement of substances across a membrane in favor of a concentration gradient, which does not require energy.

Active transport is mediated by transporter proteins known as carriers and/or pumps.

In conclusion, active transport is required for energy given to proteins in the phospholipid layer (Option c).

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Collecting wild specimen and allowing them to reproduce in an environment away from predation can also be called a
Your answer:

Answers

Answer:

Captive breeding program

Explanation:

A captive breeding program can be defined as the process of collecting wild specimen and allowing them to reproduce in an environment away from predation. This is an important part of saving endangered species. Specimens of such species are bred in zoos and similar facilities in order to build a healthy population. Sometimes, these species are successfully reintroduced back into the wild. Examples of animals that were successfully saved like this are the California condor, black-footed ferret, golden lion tamarin, and red wolf.

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