Biology Middle School

Which is an example of a sudden change that could lead to the extinction of species?
A. a mountain range isolates a species
B. Earth's tectonic plates move
C. a volcano erupts
D. sea level change

Answers

Answer 1

Answer:

D

Explanation:I think it is D

Answer 2

Answer:D

Explanation:

Right now a similar thing is happening by global warming which is leading to polar bears becoming extinct

Edit:Also B and C happen on a regular basis but rarely lead to the extinction of a species and A would lead to the evaluation of an isolated species

Related Questions

Why it was important that Gregor Mendel used thousands of pea plants in his experiments? Would Mendel have found the same results if he had used only twenty plants? Explain.

Answers

Answer:

Explanation:

Gregor Mendel used thousands of pea plants in his experiments to ensure that his results were accurate and reliable. By using a large sample size, he was able to reduce the effects of chance and random variation in his experiments. This is important because biological systems are complex and variable, and small sample sizes can lead to inaccurate or misleading results.

Mendel's experiments involved crossing pea plants with different traits (e.g., tall vs. short, yellow vs. green), and he counted the number of offspring with each trait. He found that the offspring followed predictable patterns of inheritance, which he summarized in his laws of inheritance.

If Mendel had used only twenty plants in his experiments, he may not have obtained the same results. With a small sample size, chance events can have a greater impact on the results. For example, if he crossed two pea plants with different traits and obtained only a few offspring, it's possible that chance events (such as mutations or environmental factors) could have influenced the results. This could lead to false conclusions about the inheritance of the traits.

Therefore, using a large sample size was critical to Mendel's success in developing his laws of inheritance. It allowed him to detect patterns that were consistent across many different crosses, and to demonstrate that these patterns were not the result of chance variation.

These are plants that always produce offspring that look like the parent. By experimenting with true-breeding pea plants, Mendel avoided the appearance of unexpected traits in offspring that might occur if the plants were not true breeding.

Which has increased at about the same rate as global temperatures over the past 100 years?
A sunlight reaching Earth
B Volcanic eruptions
C Tree rings
D carbon dioxide
Please help thank you

Answers

Answer: D is the answer.

Explanation: Carbon dioxide significantly impacts the global temperature, and is partially the reason why it has been increasing over the past 100 years.

A kite suspended in the sky is flowing back and forth. Which type of friction is being described?

static friction
rolling friction
fluid friction
sliding friction

Answers

Answer:

Fluid friction

Explanation:

It is known as drag force it cant be static friction because it cant move cant be rolling friction because its not rolling its in the sky its not sliding friction because its not going down a hill or a slide

So the Answer is Fluid friction

Answer:

Fluid fiction

Explanation:

Here you go.

After a bottleneck event, the population of rabbits in an area has significantly decreased. A decade later, the population of the rabbits recovers to its original numbers. Which statement is correct about the rabbits?

They are more likely to survive environmental changes because of the bottleneck event.

They are as likely to survive environmental changes because they survived the bottleneck event.

They are as likely to survive environmental changes because their population has recovered.

They are less likely to survive environmental changes because of the bottleneck event.

Answers

Answer: They are less likely to survive environmental changes because of the bottleneck event.

Explanation: There is a lack of genetic variation because of the bottleneck effect, making it harder for the species to adapt to an environmental change.

The answer is d because it will not adapt back to the environment

Beavers, large members of the rodent family in North America, are often referred to as “ecosystem/keystone engineers” by wildlife managers. Ecosystem engineers are described as animals that create, alter, or destroy a habitat. Beavers contribute to river ecosystems by bringing down old and dead trees along riverbanks. They use these trees to make their dams. Although these dams are primarily used for protection and food storage, scientists report that these dams change the surrounding environment in different ways.


Given this information, in three to five sentences, describe a potential benefit that beavers contribute to the ecosystem as keystone engineers and describe a plausible impact that the removal of beavers could have on the surrounding ecosystem.

Answers

Answer:The potential benefit that beavers contribute to the ecosystem include sources of food and habitat for some animals.This consists of all the organisms and the physical environment with which they interact.The removal of the beavers will allow for more oxygen to be present within the ecosystem as a result of increased plant population.

Explanation:

Answer:

2-6=4 thx

Explanation:

it is thx

How does the cardiovascular system interact with the respiratory system?
A.
Blood helps the brain interpret different smells.

B.
Blood helps the lungs to inflate and deflate to breathe.

C.
Blood transports oxygen from the lungs to other organs.

D.
Blood transports nutrients from the stomach to other organs.

Answers

C- blood transport O2 from the lungs to other organs
C. Blood transport oxygen from the lungs to other organs

Plz help i will report if it is wrong

A population of bacteria is treated with an antibiotic. Because of variation in the population of bacteria, what is a possible outcome of the treatment?
A) The population will increase rapidly.
B) All of the bacteria will be resistant to the antibiotic.
C) The population will be better able to obtain a food source.
D) Some of the bacteria may be resistant to the antibiotic and survive.

Answers

Answer:

Your answer for this is D

Answer: A: The population will increase rapidly.

Explanation: Only an antibiotic can cure for bacteria. Key words: antiBIOTIC.

Which of the following minerals is the hardest and is a 10 on Mohs scale?

a
Topaz
b
Talc
c
Quartz
d
Diamond

Answers

Answer is diamond I just did the quiz

Observe the following protists below. Which statement best compares how a euglena and paramecium obtain food?

Both the euglena and paramecium use flagella to obtain food.


The euglena uses photosynthesis to make its own food and the paramecium uses cilia to sweep food into its oral groove.


The paramecium uses photosynthesis to make its own food and the euglena uses cilia to sweep food into it's oral groove.


The paramecium uses a pseudopod to obtain food while the euglena uses cilia.

Answers

The euglena uses photosynthesis to make its own food and the paramecium uses cilia to sweep food into its oral groove

The euglena uses photosynthesis to make its own food and the paramecium uses cilia to sweep food into its oral groove.

What is euglena ?

It is the alga that has the ciliates and flagella also to obtain the movement .

The paramecium uses cilia to sweep food into its oral groove Paramecium are heterotrophs and have to devour meals. The location of the paramecium that looks pinched inward is referred to as the oral groove. Cilia sweep meals into this location. Food enters the paramecium via the oral groove (mouth pore) and is going to the gullet (shadeation the oral groove and gullet mild brown).Euglenas create their personal meals via photosynthesis, the manner of soaking up daylight to synthesize meals from carbon dioxide and water. An eyespot on the the front stop of the euglena detects mild, and its chloroplasts (systems that include chlorophyll) lure the daylight, permitting photosynthesis to occur.\

Read more about chloroplasts refer link :

https://brainly.com/question/13650763

#SPJ2

(Which is the independent or dependent variable) You are walking directly away from your house. You are 555 kilometers away from your house when you start walking, so you can determine your distance from your house by adding 555 to the number have walked.

(Which is the independent or dependent variable) You are walking directly away from your house. You

Answers

Answer: 666

Explanation:

the distance drom your house is rhe independent variable

Look at the diagram of the rock cycle below.

Which part of the cycle is missing?
A.
sedimentation
B.
melting
C.
crystallization
D.
mineral integration

Look at the diagram of the rock cycle below.Which part of the cycle is missing?A.sedimentationB.meltingC.crystallizationD.mineral

Answers

answer B.

it’s melting

From the diagram of the rock cycle the missing part is ( B ) ; Melting

Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.

Magma is released to the earth surfaces during volcanoes therefore the missing term  in the rock cycle is melting

Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.

Learn more : https://brainly.com/question/23661578

Look at the diagram of the rock cycle below.Which part of the cycle is missing?A.sedimentationB.meltingC.crystallizationD.mineral

A science class is taking a census of the organisms that live in a pond by their school. They lowered the bucket into the pond to a depth of 3 feet and drew up a liter of pond water. They recorded the organisms visible in the bucket. They then took a drop of the water and placed it under a microscope. They recorded the organisms visible under the microscope.

The class found many nonliving things in the sample of pond water. Which of these is a way that the students can distinguish living from nonliving things?

Choose the correct answer.
A) Living things are made up of cells while nonliving things are not.
B) Living things grow larger with time while nonliving things do not.
C) Living things breathe air and eat food while nonliving things do not.
D) Living things can move from place to place while nonliving things cannot.

Answers

C? Because if it is a non living thing it won’t eat or breathe

Required The measure of the average thermal energy of a substance is * O heat O matter O temperature​

Answers

Answer: Temperature

Explanation:

I am unsure what the question posed in this is, but I believe it is "The measure of the average thermal energy of a substance is: _____."  So in that case, it would be temperature.

Answer:

Temperature

Explanation:

Think of examples of how the following parts of natural selection exist within mice populations:

Overproduction-

Competition-

Variation -

Selection-

Think of examples of how the following parts of natural selection exist within mice populations:Overproduction-Competition-Variation

Answers

Answer:

Overproduction i think

Explanation:

Over production can happen if there’s not enough predators, competition can happen for food because the carrying capacity is full, variation can happen when there’s a change in amount like there being more predators than prey, and selection and what kind of selection do you mean ? Like selection with the animals mate or food or something ?

Write at least one testable question about why the fish are being washed up on shore. Then, state why the question makes the most sense to investigate.
Your answer should include at least three complete sentences.

Answers

Why everyone should clean the fish before they eat them


A mom was cleaning a fish because she was going to make dinner for her family so the son asked her why do we have to clean it wasn’t it in the water before she said it was the water but that water isn’t clean there’re dead fish inside of that water, and a lot of people threw garbage in the ocean water.



from the passage why should we clean the fish before we eat it



The answer

There’s a-lot of garbage in the ocean and I can make us tired

Over time, a shallow pond fills with plants, such as duckweed and cattails. These plants-

A:will die off quickly in the shallow water.
B:support ecological succession from pond to marshland.
C:will grow into larger trees as they mature.
D:eventually will dry out and create a fire hazard.
ASAP

Answers

Answer: B or C I think
I am not sure what plants they are but they will make the pond into a home for animals

Answer:

the answer you are looking for is A. they will die off quickly in shallow water

Explanation:

because they are larger plants that do not need a lot of sunlight but needs a lot of oxygen and a shallow pond does provide that oxygen needed but it pushes to much sunlight.

hope this helped some

Which characteristics belong to Whittaker’s classification system ? A)three domains B)six domains C)two kingdoms D)five kingdoms E)five levels F)seven levels G)eight levels

Answers

Whittaker proposed an elaborate five kingdom classification – Monera, Protista, Fungi, Plantae and Animalia. The main criteria of the five kingdom classification were cell structure, body organisation, mode of nutrition and reproduction, and phylogenetic relationships. It’s D

Answer:

for the lazy gang it is d

Explanation:

Nguyen uses a triple beam balance to measure the mass of each rock. Read the values on the balance for rocks X, Y, and Z.

Nguyen uses a triple beam balance to measure the mass of each rock. Read the values on the balance for

Answers

Answer:

X = 120

Y=  710

Z=   620

Explanation:

The Density of Rocks Part A Nguyen uses a triple beam balance to measure the mass of each rock. Read the values on the balance for rocks X, Y, and Z. Rock Balance Reading of Rock Mass (g) X triple beam part of mass balance with top beam with pointer at 20, middle beam with pointer at 0, and lowest beam with pointer at 1 Y triple beam part of mass balance with top beam with pointer at 10, middle beam with pointer at 0, and lowest beam with pointer at 7 Z triple beam part of mass balance with top beam with pointer at 20, middle beam with pointer at 0, and lowest beam with pointer at 6

x = 120
y = 710
z = 620

What would happen if your organ systems stopped functioning properly?

Answers

Answer:

All of the organ systems of the body work together to maintain homeostasis of the organism. If homeostasis fails, death or disease may result.

7th Grade Science Homework =﹏=


everything is on the screenshots! ^w^


and the 3rd screenshot is there to help with questions 4 & 5! ^w^

7th Grade Science Homework ==everything is on the screenshots! ^w^and the 3rd screenshot is there to
7th Grade Science Homework ==everything is on the screenshots! ^w^and the 3rd screenshot is there to
7th Grade Science Homework ==everything is on the screenshots! ^w^and the 3rd screenshot is there to

Answers

Answer:

Explanation:

1. C

2. D

3. B

4. D

5. A

(im in biology rn)

drop the snap and i gotchu with whatever

C

D

B

D

A

I hope this helps, it’s been a while sense I did 7th grade

How did the probabilites of yellow seeds and green seeds compare with each other?

Answers

Without any specific information about the context of the question, it is impossible to determine the comparison of probabilities of yellow and green seeds.

If we assume that the question is referring to the probabilities of yellow and green seeds in a genetic cross between two heterozygous pea plants, the probabilities would be equal (1:1) according to Mendelian genetics. This means that there is an equal chance of a seed being yellow or green.

However, if the question is referring to probabilities in a different context, such as the proportion of yellow and green seeds in a bag of mixed seeds, or the probability of a yellow seed developing into a plant versus a green seed, the probabilities would be different and would depend on the specific situation.
The yellow seed is dominated over the green seed

Have a good day!!!
Brainlist pls

Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?

Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s)

Answers

Arrow 'f' releases carbon dioxide.

Answer:

F I think I am not sure though hope I helped.

why does the Atlantic ocean have higher salinity than the pacific ocean
PLZ ANSWER FAST
Giving brainlieist

Answers

The Atlantic Ocean is a lot much smaller than the Pacific Ocean.. The volume and concentration of water is the main reason for it being saltier…. And being saltier in turn makes it a lot denser too and therefore striking an equivalent weight balance with the Pacific waters!

Answer:

The Atlantic Ocean is a lot much smaller than the Pacific Ocean

Explanation:

The volume and concentration of water is the main reason for it being saltier

Highly organized systems like living cells should have _____.

a. High energy

b. High entropy

c. Low entropy

d. Low energy

Answers

the answer is - (C ). Low entropy ! I got it right on my test
the answer is c, low entropy

50 POINTS!

Energy is transferred into the ecosystem when

1.when bacteria absorbs nitrogen from other organisms

2. dead organisms decay and form organic matter

3. rodent prey on invertebrates

4.plants grow from the soil

Answers

Answer:

2

Explanation:

Energy is transferred between organisms in food webs from producers to consumers.

The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.

Answer: between organisms in food webs from producers to consumers.

Explanation:

How did the Industrial Revolution contribute to global climate change?
A. It led to an increased use of alternative fuels other than fossil fuels.
B. It led to an increased use of coal, oil, and other fossil fuels.
C. It led to the release of chemicals that destroyed the ozone layer.
D. It led to the development of nonrenewable sources of energy. (I think it's B. Please correct me if I'm wrong.)

Answers

Answer: You're right its b.

Explanation:

Human activity has rapidly increased the emission of greenhouse gases to the atmosphere. Since the start of the Industrial Revolution, in about 1750, human activities such as burning fossil fuels, including coal and oil, have increased greenhouse gas concentrations in our atmosphere.

answer for your question is B

PLSSSS HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP

PLSSSS HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

A

Explanation:

Fertilizations occurs in the fallopian tube.

Point "a" is located where the fallopian tube is at

Hence, fertilization is most likely to occur at point A

Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.

Lab: Owl Pellets 2. What procedure did you use to complete the lab?
Outline the steps of the procedure in full sentences.

Answers

Answer:

Procedures that needs to be considered to complete the lab are- a thorough knowledge of lab assignments, knowledge about safety equipment, reviewing the MSDS of chemicals for lab experiment etc.

Explanation:

To be lab prepared one must follow these procedures-

1. One should have the knowledge of lab assignments to make the lab experiment easier.

2. To be aware about safety equipment and their uses in lab, like- the location of fire extinguisher in lab.

3. To know the steps of experiments to be performed

4. To fill notebook of lab with information regarding the experiment

5. One should review the data sheets of chemicals material safety.

6. To put on all the necessary dressings to perform experiment.

7. To have complete understanding about the experiment disposals.

Answer:

Procedures that needs to be considered to complete the lab are- a thorough knowledge of lab assignments, knowledge about safety equipment, reviewing the MSDS of chemicals for lab experiment etc.

Explanation:

To be lab prepared one must follow these procedures-

1. One should have the knowledge of lab assignments to make the lab experiment easier.

2. To be aware about safety equipment and their uses in lab, like- the location of fire extinguisher in lab.

3. To know the steps of experiments to be performed

4. To fill notebook of lab with information regarding the experiment

5. One should review the data sheets of chemicals material safety.

6. To put on all the necessary dressings to perform experiment.

7. To have complete understanding about the experiment disposals.

Explanation:

creds to the one above me

yw :) edge

Provide an example of a neutral mutation

Answers

silent point mutations
These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the a mino acid s in the proteins

Is cutting a piece of DNA with a restriction enzyme depends upon the sequence of the DNA?

Answers

Answer: the answer is yes it is
They recognize and bind to specific sequences of DNA, called restriction sites. Each restriction enzyme recognizes just one or a few restriction sites. When it finds its target sequence, a restriction enzyme will make a double-stranded cut in the DNA molecule.
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