Which of the following statements about scientific theories is incorrect? a.Theories are suggestions made by curious people, b.theories can change if new evidence arises, c. Theories are used to explain why natural phenomena occur, d. theories are bases on sets of hypotheses

Answer:

True.

Explanation:

Answer:

explanation below

Explanation:

A) Biodiversity is simply known as the number and variety of organisms found in a definite environment or region.  Scientists have devised several ways of measuring biodiversity and the methods to be used depend on the type of organisms they are to count.  

Canopy fogging – one of the ways of measuring biodiversity, has remained an effective way of obtaining details about the biodiversity of insects.  It involves the act of spraying  low dose of insecticides on a tree top, and when the insects fall from the trees, they are being collected on a large screen, that looks like a funnel.  

Transact sampling is another way of measuring biodiversity and this time, with a transact line. The transact line is usually a measuring tape or rope that has been marked at set intervals.

b) Ecosystem stability is the ability of the ecosystem to maintain its steady state, even after it has experienced stress or disturbances.  The biodiversity of an environment makes huge impact on the ecosystem stability in that particular area. It has been known that certain areas that have high levels of species and genetic diversity, are more likely going to an ecosystem that is complex, with varying food webs and biotic interactions. The increase in this complexity makes it more likely that the ecosystem of that area will rightly move back to a stable state whenever disturbances are experienced.

There are evaluated scientific evidence that shows that reduced biodiversity affects the transmission of communicable disease in agricultural crops, animals and humans. Loss of biodiversity usually increases susceptibility to diseases in plants and humans.  

Answer: The purification gave evidence of the identity of the transforming material, meaning that the possible transforming substance was narrowed down.

Explanation: Removing lipids and carbohydrates suggest that these are not the transforming materials and removing protein suggests that this is also not a transforming material.

Answer:

им putins брат, почему вы обманываете нашу систему образования, Это теперь запрещено в России.

Answer: C: dialysis

Explanation:

c. dialysis

Answer:

c

Explanation:

Complete question:

Question 49 (1 point) The following questions refer to the description below. You have read that soapberry bugs, Jadera haematoloma, adapt to available food sources. For example, in southern Florida, soapberry bugs feed on seeds of a native plant, the balloon vine. In central Florida, the balloon vine is rare and soapberry bugs have switched to eating seeds of an introduced species, the golden rain tree. The seeds of the golden rain tree fruits are much closer to the fruit surface than the seeds of the native balloon vine fruit. As a result, natural selection results in beaks that are shorter in soapberry bugs that utilize golden rain tree fruits than those that feed on balloon vine fruit seeds.

What type of natural selection do you think is acting on these bugs if we consider the golden rain tree bugs and balloon vines bugs together as one group?

Answer:

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

Answer:

Igneous rocks form as magma cools below ground or lava cools on the surface. Sedimentary rocks are made from the eroded particles of other rocks or from mineral deposits left when water evaporates. Metamorphic rocks form when any existing rock undergoes intense and prolonged exposure to heat and pressure.

Explanation:

Answer:

30 degrees;

30 degrees

Explanation:

Coral reefs are formed when the skeleton of the corals merge and combine with each other. The formation of coral reefs takes many years . Corals are the organism living in the ocean. They live in dense colonies and clusters. Coral reefs provides an ecosystem for other marine organisms to live in. The species live in the coral reefs and maintain their population. Corals live in the region of the ocean that has warm water and between the latitudes of 30 degrees North and 30 degrees South.

Answer:

4 beats

Explanation:

The number of beats of the heart that will take blood from Aorta to The Brain

n = Distance  from Aorta to brain / distance per beat

Given that distance per beat = 7.5 cm ( calculated value outside scope of question  using the data attached below)

n = 30 cm / 7.5 cm

  = 4 beats

Answer:

The independent variable is pressure

The dependent variable is volume.

Explanation:

Answer:

The independent variable is pressure.

The dependent variable is volume.

Explanation:

volume of matter decreases under pressure ... -under pressure, the particles in a gas are forced closer together ... factors affecting gas pressure ... -if pressure in a sealed container is lower than outside, gas will rush in ...

Answer:

The correct answer is - Imprinting.

Explanation:

Imprinting is a behavior that includes both innate components and learning components and normally can not be irreversible. It is something that takes place at a specific sensitive period.

For instance, ducklings follow their mother is imprinting that is both innate and learned at a limited phase after birth during development. It can be visual or auditory or other ways that an animal can develop imprinting.

Answer:

d. Species diversity

Explanation:

The species diversity can be measured by:

Species richness is the number of species present in a sample, within a community, habitat or microhabitat, ecosystem, landscape, region or any well-defined spatial unit. It is a metric for measuring biodiversity which simplicity and easy interpretation make it a standard metric.  It is the simplest and straightforward measure of biodiversity. It is just a count of species, with no need for abundance data. In some cases, this can be the cause of criticism, as it ignores information about the species-abundance distribution.    

Answer:

The correct answer is - Nematocycst.

Explanation:

Nematocysts are aquatic animals that contain stinging cells known as cnidocytes. These organisms are members of the phylum Cnidaria. These carry a organelle called cnida or cnidocyst.

An example of such an organism is Jellyfish. Sting cells are specialized neural cells that release extensive Golgi secretion venom that causes a stinging experience to the prey the nematocyst.

Answer:

It is the last option

Explanation:

Answer:

I thank the answer is b if I'm correct

what is biosorption?

Biosorption is the ability of biological materials to accumulate heavy metals from wastewater through metabolically mediated or physico-chemical pathways of uptake.

Complete question:

The R and S loci are 35 m.u. apart. If a plant of genotype RS/rs is selfed, what progeny phenotypes will be seen and in what proportions

Answer:

Explanation:

Available data:

First, we need to recognize the parental gametes and the recombinant ones.

Cross:

Parentals)     RS/rs    x      RS/rs

Gametes) RS  Parental   ⇒  Equal to the parental genotype

                 rs   Parental   ⇒  Equal to the parental genotype

                 Rs  Recombinant   ⇒  Product of recombination

                 rS   Recombinant   ⇒  Product of recombination

We know that genes are 35 MU apart from each other. The map unit is the distance between the pair of genes for which every 100 meiotic products, one of them results in a recombinant one.  

To calculate the recombination frequency, we have to know that 1% of recombinations = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.  

According to this information, if 1 MU = 1% recombination frequency, then

35MU --------- 35% recombination frequency = 0.35

Now, let us calculate the frequency of each gamete type.

35 map units = 35 % of recombination in total  

                      = % Rs + % rS  

                      = 17.5% Rs + 17.5% rS

Now, if the recombination frequency equals 35% then the parental frequency is 100% - 35% = 65%

65 % parental frequency = % of RS + % rs  

                                          = 32.5% RS + 32.5% rs

The frequency of each gamete is

F1 Genotypes and Proportions

F1 Phenotypes and Proportions

If R and S loci are 35 m.u. apart and a plant of genotype RS/rs is selfed, then the progeny phenotypes will be 0.606 RS; 0.106 rs; 0.144 Rs and 0.144 rS.

In this case, it is imperative to estimate gamete frequencies

In conclusion, if R and S loci are 35 m.u. apart and a plant of genotype RS/rs is selfed, then the progeny phenotypes will be 0.606 RS; 0.106 rs; 0.144 Rs and 0.144 rS.

Learn more in:

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Answer:

Due to number of amino acids.

Explanation:

The main differences might be expected in the amino acid composition of X versus Y because the X polypeptide is made up of one smaller unit of amino acid while on the other hand, Y polypeptide is made up of four smaller units of amino acids. The  name of X is monomer which means composed of one amino acids while Y exists as a tetramer which means it has four amino acids. So we can conclude that the main difference between X and Y is the presence of  number of amino acids.

Amino acids are organic compounds that are formed of amino, carboxylic and a side group. They bond to form protein structures.

The amino acids fold in various structures like primary, secondary, tertiary etc. The basic contrast in an amino acid arrangement of polypeptide X and Y is that the X is made of small units while Y is made of larger units.

X polypeptide is a monomer that is it only has one unit of amino acid while Y is a tetramer that is it has four-unit of amino acids.

Therefore, the number of amino acids is the main distinction between X and Y tertiary structures.

To learn more about the monomer and tetramer structure of amino acids follow the link:

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Answer:

Option D (of early.....................ago) is the right alternative.

Explanation:

Other given three alternatives aren't connect to the scenario. Thus the above is the right one.

Answer:

This binding causes a conformational change in the receptor which enters into the nucleus and binds DNA to activate transcription

Explanation:

Testosterone is a steroid hormone responsible for inducing protein synthesis and growth of tissues with androgen receptors. Testosterone receptors, also known as androgen receptors, are a class of nuclear receptors activated by binding androgenic hormones (e.g. testosterone) in the cytoplasm, whose binding induces a conformational change of the receptors that are subsequently translocated to the nucleus. Within the cell nucleus, these activated receptors form homodimers that bind DNA in order to promote the transcription of target genes capable of regulating cell growth, cell cycle progression and survival.

Solution:

Photosynthesis is a process by which green plants and vegetables prepare their food using carbon dioxide from the atmosphere, water from the soil and in the presence of sun light with the help of chlorophyll.

-- During photosynthesis process, electrons are originated from the chlorophyll and it absorbs the photons of light from the atmosphere.

-- the energies are passed inward from the pigments to pigments until they reaches the reaction center.

-- then the energy is transferred to the P680, thus boosting the electron to the high energy level.

-- this high energy electron then passes to the acceptor molecule and is replaced with the electron from the water.

-- this splitting the water releases oxygen in the atmosphere that we breathe.

-- the electron generation is proportional to the DPIP reduction light transmittance.

-- the decrease in the light availability decreases the electron quantity of the electrons which will be generated.

-- the boiling disrupts the functional structures.

Answer:

Explanation:

for first  principle = Rs. 4050 Time =5yrs, interest =Rs. 2050  R%= ?

By the formula, R=?\\

[tex]For the first,\\P =RS 4050, I=RS2050, R=?\\\\R= \frac{I*100} {P*T}\\ = \frac{2050*100}{4050*5} \\=\frac{205000}{20250} \\=10%\\Again, for 2nd \\ P= Rs 5000, T= 8yrs, R= 10% Same as First ,I=?\\\\I=\frac{P*T*R}{100} \\=\frac{5000*8*10}{100} \\=RS=4000.[/tex]

So, we know that a metamorphic rock is either an igneous or a sedimentary rock that are exposed to intense heat and pressure.

But when the metamorphic rock is thrusted deep underground through subduction, it will again be subjected to intense heat. This can cause it to melt, turning it into a magma. When the magma cools down, it again becomes an igneous rock and the rock cycle continues.

Answer:

Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest.

Perhaps the best known of the divergent boundaries is the Mid-Atlantic Ridge. This submerged mountain range, which extends from the Arctic Ocean to beyond the southern tip of Africa, is but one segment of the global mid-ocean ridge system that encircles the Earth. The rate of spreading along the Mid-Atlantic Ridge averages about 2.5 centimeters per year (cm/yr), or 25 km in a million years. This rate may seem slow by human standards, but because this process has been going on for millions of years, it has resulted in plate movement of thousands of kilometers. Seafloor spreading over the past 100 to 200 million years has caused the Atlantic Ocean to grow from a tiny inlet of water between the continents of Europe, Africa, and the Americas into the vast ocean that exists today.

Explanation:

NOT MY WORDS! BUT I HOPE IT HELPS!

Answer:

A) traits that occur after an organism is born

Explanation:

Answer:

i have no idea what this means i kinda need more details but ill say it maybe is Sex-linked disorders affect males more often than females because males have only one X chromosome. but im not really sure

Explanation: