17. What are some of the major causes of extinction today?

Answers

Answer 1
Pollution
Excessive hunting
Deforestation
Answer 2
Pollution and deforestation

Related Questions

Why do you think we can say there are multiple interpretations of extinct animals?

Answers

Answer:

yes there are because manu animals like dinausaurs get extinct

The proper function of many proteins is necessary for the proper functioning of cells.
O True
O False

Answers

Answer: True

Explanation:

The proper function of many proteins is necessary for the proper functioning of cells - True

Protein:Proteins are a class of macromolecules that perform a diverse range of functions for the cell.It helps repair and build your body's tissuesallows metabolic reactions to take place and coordinates bodily functions.In addition to providing your body with a structural frameworkproteins also maintain proper pH and fluid balance

Thus, The proper function of many proteins is necessary for the proper functioning of cells - True

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what is a hybrid tell me brainly if you do

Answers

Explanation:

a hybrid is a mixture of two different things resulting in something that has a little bit of both

Answer:

A hybrid is an animal or plant resulting from a cross between genetically unlike individuals,a picture is below as an example of a HYBRID

Also, a hybrid can be something changed after being created.

Hybrids can be; cars,animals and even people (nephilim).

I hope this helps

which event takes place during dna replication​

Answers

Explanation:

d. The DNA molecule "unzips" along weak hydrogen bonds

Do you believe that some people have the extrasensory perception (ESP)?

Why or why not?

Answers

No because i don’t believe in that stuff

Write your question here (Keep it simple and clear to get the best answer) what name iz give to the female part of the flower?

Answers

Answer:

The female part of the flower is called gynoecium or pistil

Explanation:

The female part of a flower is called the gynoecium or pistil. The pistil is located in the center of the flower and consists of three parts: the stigma, style, and ovary.

The stigma is a sticky knob-like structure located  at the top of the pistil. It is covered with a sticky substance so pollen grains will stick to it. It is attached to the long, tubelike structure called the style.

The style is a long  long tubelike structure which connects the stigma to the ovary. The style provides the pathway through which the pollen grains will travel to the ovary in order to fertilize the eggs or ovule

The ovary is the enlarged portion of the pistil found at the base of the pistil. It contains the eggs or ovules.  After fertilization, the ovary develops into the fruit and the ovules become seeds. Based on where the ovary of a plant is located, a plant can be classified as having a superior ovary, an inferior ovary or a half-inferior ovary.

How many total sex chromosomes should a human somatic cell contain?

3

2

1

4

Answers

Answer:

they should have 46 chromosomes

11. DDT is a pesticide that can't be broken down by organisms. If a farmer sprays
DDT on the strawberry plants above, which trophic level will contain the highest
concentration of DDT?
a. Producers
b. Herbivores
c. Second-order Consumers
d. Third-order consumers

Answer quickly plz

Answers

The answer is A. I did the assignment

which of the following is a scientific question A how many centimeters are in a meter B what is the average length of a white pen needle see C what is a good length for my pant legs D how long should I grow my hair ​

Answers

A.how many centimeters make one meter

Write a paragraph that explains the increase and how technologies that have appeared over
the past 100 years may have contributed to the increase or may have prevented more
significant increases in greenhouse gas levels.

Answers

Answer:

Mar 4, 2011 — Past changes in Earth's temperature happened very slowly, over ... Human activities contribute to global warming by increasing the greenhouse effect. ... Emissions of carbon dioxide, the most important greenhouse gas, ... Even slight rises in average global temperatures can have huge effects. ... 100 years.

Explanation:

which statement best describes how eating regular meals help your body maintain homeostasis

Answers

Answer:

regular meals provide your body with a constant supply of energy

Explanation:

Answer:

constant supply of energy

Explanation:

5.
Which of the following is the most used form of renewable energy?

wind power

wood burning

biofuels

hydroelectric power

Answers

Answer:

hydroelectric power

Explanation:

Hydropower is the most widely-used renewable power source, with the global hydroelectric installed capacity exceeding 1,295GW, accounting for more than 18% of the world's total installed power generation capacity and more than 54% of the global renewable power generation capacity.

Answer:

hydroelectric power

Explanation:

*Ways we turn hydropower into energy we can use:

Answers

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ways we can turn hydropower into energy: so one way were able to turn hydropower into energy is by using hydraulic turbines, using the turbine and mechanical energy the moving water spins a turbine and creates mechanical energy which is the converted into electricity.

The process usually takes place at hydropower plants, to tell you a bit more the falling water contains what we call kinetic energy which is what actually makes up the mechanical energy

The whole process takes place when water is released from a upper reservoir into the lower reservoir.

Why are invasive species dangerous to the environment?
A)They pollute the environment.
B)They are always predators.
C)They threaten biodiversity.
D)They bring abiotic factors.

Answers

Answer:

C

Explanation:

They threaten the other animals. They can take their food, homes, and they don't have natural predators.

Invasive species are dangerous to the environment as they threaten the biodiversity. Thus, the correct option is C.

Invasive species are those imported species that are able to thrive rapidly in another foreign area by adapting and reproducing quickly.

Invasive species of plants and animals lead to an increase in the competition for survival, which results in decrease in the population of the native species.

The invasive species also affect the food web that is existing in the particular ecosystem, because of which other all organisms which are part of the food web are affected. They outcompete the native species for food,

Thus, biodiversity is threatened due to the invasive species.

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Animals eat and digest food to obtain the energy available for life activities. Identify the organelle where energy from nutrients is released.

HELP ASAP

Answers

Answer:

Metabolism is the chemical reactions that take place inside a living organism. The reaction occurs in the cells.  Digestion can be the best association to metabolism. The metabolic system recognizes which substances can be nutritious or poisonous. In order to complete this process, water is needed.  The chemicals are dissolved in water and transported. Without water, no reaction can take place.

Metabolism is considered as the set of life-sustaining chemical reactions within the living organism’s body cells.

Which part of the carbon cycle occurs when plants, trees, or fossil fuels are burned?
A. Transpiration B. Oxidation C. Photosynthesis D. Combustion

Answers

Answer:

Combustion.

Explanation:

It's just as it sounds, combustion is the process of burning something. In the carbon cycle, combustion occurs whenever any organic living or non-living thing is burned in the proximity of oxygen, afterwards producing carbon dioxide.

Combustion is the part of the carbon cycle which occurs when plants, trees, or fossil fuels are burned. Thus, the correct option is D.

What is Combustion?

Combustion or burning is a high-temperature exothermic redox chemical reaction which occurs between a fuel and an oxidant. The oxidant is usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke. This is one of the major reasons of pollution.

Three main types of combustion include rapid combustion, spontaneous combustion, and explosive combustion.

Therefore, the correct option is D.

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GUYSSS HELPP, ILL MARK YOU BRAINLYYY

Answers

Explanation:

1 light energy

2 chemical energy

3 chemical energy

4 light energy

Answer:

1, Light energy

2, Chemical energy

3, Chemical energy

4, Light energy

What are the characteristics of air masses?

Answers

Answer:

Air masses have fairly uniform temperature and moisture content in horizontal direction (but not uniform in vertical). Air masses are characterized by their temperature and humidity properties. The properties of air masses are determined by the the underlying surface properties where they originate.

Explanation:

Explain how DNA is semiconservation

Answers

According to the semiconservative replication model, which is illustrated in Figure 1, the two original DNA strands (i.e., the two complementary halves of the double helix) separate during replication; each strand then serves as a template for a new DNA strand

People spray pesticides on crops to kill insects that eat and destroy the crops. However, these insects are becoming resistant to the pesticides. Explain how this could happen.

Answers

The same way bacteria becomes resistant to antibiotics.

Mutations in their DNA.

When an organism or insect develops a mechanism for the removal of the pesticide compound is known as pesticide resistance.

What is pesticide resistance?

The organism or insects develop mechanisms such as the alternation of the binding site of the compound present in the pesticide leading to the development of resistance against the used pesticides. The development of resistance against the pesticide is a slow process, it takes time. The usage of pesticides becomes a failure if organisms develop resistance.

The frequent use of pesticide and insecticides cause changes in the genetic material of the organisms. They help in the development of enzymes and changes in the binding sites. These changes are passed on to the next generation of the organism, which makes the entire population resistant to the particular pesticide and insecticide.

The use of the chemicals should be monitored. Only use when required with rotation.

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A nebula is composed of dust and gas, but what are the elements in a nebula?

Answers

Nebulae are made of dust and gases—mostly hydrogen and helium. ... Eventually, the clump of dust and gas gets so big that it collapses from its own gravity. The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star.



Hope this helps !

Answer:

the person above has correct

Explanation:

"Nebulae are made of dust and gases—mostly hydrogen and helium. ... Eventually, the clump of dust and gas gets so big that it collapses from its own gravity. The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star."

What is the name of the theory of how the universe was created?

*Please Help*​

Answers

The answer is The Big Bang Theory

A person who is believed to speak for god​

Answers

Answer:

IM SO SORRY IF  IM WRONG but i think the answer is prophets or Moses.

Explanation:

Answer:

priest

Explanation:

the reasons for this is because when you go to church the priest is the one that talks about what the Bible and talk about what god wants for us

Which mutation results in the production of molecules that can be used as a source of energy?
a mutation that causes bacteria to fight off antibiotics
a mutation that breaks down the sugar in milk, lactose
a mutation that changes the color of a part of a flower

Answers

Answer:

a mutation that breaks down the sugar in milk, lactose

Explanation: sugar that is broken down can be used as a source of energy

Answer:

The correct answer is B. a mutation that breaks down the sugar in milk, lactose

For her science fair project, your little sister replicated one of Mendel's experiments. From a P0 pea plant with purple flowers and a pea plant with white flowers, she got 1 purple F1 hybrid (she had forgotten to water, so just one survived). From this self-fertilized F1 she got 8 F2 offspring. 7 were purple and 1 was white, for a 7:1 ratio. Did your little sister just disprove Mendel's laws

Answers

Answer: No, the 7:1 ratio is close to the expected 6:2 ratio even with the limited sample size.

Explanation:

Let the alleles be P (purple) and W (white).

The possible crosses are

PP x WW, PP x PW, PW x WW, PW x PW

the F1 is PP or PW

one F2 is white so the F1 must be PW and

the F2 are PP, WW, PW and

the expected 8 progeny are 2PP, 2WW, 4PW

Because 7/8 are purple, we can infer that P is dominant and W recessive, so the expectation is 6 purple, 2 white

The observed ratio is similar to the expected ratio, so we can’t say that this result disproves Mendel, particularly with a small sample.

7:1 is close to 6:2, even if the sample is smaller. We cannot invalidate Mendel with such a small sample size because the observed ratio was not statistically different from the anticipated ratio.

What is Mendelian Ratio?

The term "Mendelian inheritance" refers to specific patterns that can be observed in the way characteristics are passed down from parents to children. In the 19th century, the Austrian monk Gregor Mendel conducted thousands of tests with pea plants in order to develop these broad patterns. He did this in order to determine the genetic makeup of pea plants.

The frequency with which diverse phenotypes are produced as a result of any cross incorporating Mendelian traits. in particular, the three to one ratio that is displayed by the second generation of descendants from parents who are different from one another in regard to a single character.

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What is direct characterization?
A.
when a character is described in detail by the author
B.
when a character is understood through dialogue
C.
when a character is revealed through another character’s thoughts and feelings
D.
when a character is revealed through his or her actions and appearance

Answers

I think it’s A
...
...

Answer:

A

Explanation:

Which two scientists proposed an atomic model with a nucleas

Answers

Answer:

Thomson and Rutherford

Explanation:

Answer:

Rutherford and Bohr

Explanation:

Based on the weathering patterns, guess the rock type shown in each photo.

Answers

Answer:

Granite and sandstone

what are the products of photosynthesis

Answers

Answer:

glucose and oxygen

Explanation:

Can you name at least three organelles structure inside of an animal cell

What is the basic unit of in a living thing?

Answers

Answer:

l

Explanation:

a cell is the basic unit of a living thing
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