Biology Middle School

Can anyone help I don’t understand

Answers

Answer 1

Sorry I don’t know the other two but the 1st one is B

Answer 2

The answers are
1) B
2) D
3) B

Related Questions

Write an example of how a density-dependent factor can increase a population of birds.

Answers

Density-dependant factors may influence the size of the population by changes in reproduction or survival. This in turn led to a decrease in per capita birth rate, a limitation in population growth as a function of population density. Density dependant factors may also affect population mortality and migration.

Hopefully, this answer is helpful!

describe ways you will decrease your ecological footprint

Answers

Answer:

Walk, bike, or take public transport whenever possible.

whenever possible, walk, bike, or take public transportation you can lower your overall ecological footprint by up to 20% if you don't own and use a car daily using it less reduces your carbon footprint, reduces traffic congestion, and helps to keep your city's air cleaner

According to the principle of causal determinism, everything that will happen in the future is the consequence of what has happened in the past plus _____.

Answers

i’m almost positive it’s the first one

I think it’s the first one

Write an example of how a density-independent factor can decrease a population of cherry trees

Answers

It can kill all the cherry trees because they will become suffocated by density and most will die
Hope this helped☺️☺️☺️

Which state in the United States is most effected by earthquakes due to the location of the San Andreas Fault and two plates slipping past one another at that plate boundary?

Florida

New York

Kansas

California

Answers

Answer:

California

Explanation:

"California's most damaging earthquakes of the past 150 years, such as the 1906 “San Francisco” earthquake, have occurred on faults in the San Andreas fault system."

California i mean san Andreas Fault is in California

Can anyone help with these questions?

Answers

A The object will not move
A52
C

HELP PLS WILL GIVE BRAINLIST

A bird catches and tries to eat a caterpillar. The caterpillar has a bad taste, so the bird lets the caterpillar go. The next time it sees the same kind of caterpillar, the bird avoids eating it.

Which best describes this behavior?

trial-and-error learned behavior
trial-and-error instinct behavior
conditioned reflex behavior
conditioned inherited behavior

Answers

Refer to your Expeditions in Reading book for a complete version of this text.

Mary Jackson believes in using her experience to help others succeed.

Which detail from “Mary Jackson Biography” best supports this idea?

Mary and her husband support young African Americans who want to pursue careers in science.

She fights to attend classes at a segregated school because she wants to become an engineer.

Mary retires with a number of honors for the work she did while employed by NASA.

She works with a team of engineers to write reports for NASA.

is my question.

Examples of energy conversion in daily life

Answers

microwaves, washing machines, lamps, showers

anything electric like your phone for instance anything you use in your everyday life

A student left a piece of meat uncovered on a kitchen counter overnight. In the morning, he saw that little organisms were crawling on the meat. He concluded that conditions were right for these organisms to spontaneously come to life on the meat.

Explain why the student's conclusion was wrong.

Answers

What this student thought was happening is called spontaneous generation. Spontaneous generation is a body of thought on the ordinary formation of living organisms without descent from similar organisms

HOWEVER, the student was wrong because it is impossible for organisms to be spawned out of nothing. The organisms appeared due to bacteria on the meat and in the air.

can some one help me?

Answers

Answer: in order

1. DNA condenses to form chromosomes

4. each pair of chromosomes line up in the middle of the cell

3. pairs of chromosomes separate

2. A nuclear membrane forms around chromosomes

Stage 1- Prophase

Stage 2- Metaphase

Stage 3- Anaphase

Stage 4- telophase

if this helps, please mark me brainliest !! thanks !! <3

Answer:

1. DNA condenses to form chromosomes

4. each pair of chromosomes line up in the middle of the cell

3. pairs of chromosomes separate

2. A nuclear membrane forms around chromosomes

Explanation:

Prophase I

During prophase I, the chromosomes condense and become visible inside the nucleus. Because each chromosome was duplicated during the S phase that occurred just before prophase I, each now consists of two sister chromatids joined at the centromere. This arrangement means that each chromosome has the shape of an X.

Once this chromosomal condensation has occurred, the members of each chromosome pair (called homologous chromosomes, because they are similar in size and contain similar genes), align next to each other. At this point, the two chromosomes in each pair become tightly associated with each other along their lengths in a process called synapsis. Then, while the homologous chromosomes are tightly paired, the members of each pair trade adjacent bits of DNA in a process called crossing over, also known as recombination (Figure 1). This trading of genetic material creates unique chromosomes that contain new combinations of alleles.

At the end of prophase I, the nuclear membrane finally begins to break down. Outside the nucleus, the spindle grows out from centrosomes on each side of the cell. As in mitosis, the microtubules of the spindle are responsible for moving and arranging the chromosomes during division.

Metaphase I

A schematic shows two pairs of homologous chromosomes arranged in a vertical formation in the middle of a cell. Two developing mitotic spindles flank the four chromosomes. Long fibers radiating from the mitotic spindles are attached to the centromere of each chromosome.

At the start of metaphase I, microtubules emerge from the spindle and attach to the kinetochore near the centromere of each chromosome. In particular, microtubules from one side of the spindle attach to one of the chromosomes in each homologous pair, while microtubules from the other side of the spindle attach to the other member of each pair. With the aid of these microtubules, the chromosome pairs then line up along the equator of the cell, termed the metaphase plate

Anaphase I

A schematic shows each member in a pair of homologous chromosomes separating from its partner and migrating in opposite directions. White spindle fibers attached to the centromeres of each chromosome are responsible for the movement of the chromosomes to opposite poles of the cell.

During anaphase I, the microtubules disassemble and contract; this, in turn, separates the homologous chromosomes such that the two chromosomes in each pair are pulled toward opposite ends of the cell (Figure 3). This separation means that each of the daughter cells that results from meiosis I will have half the number of chromosomes of the original parent cell after interphase. Also, the sister chromatids in each chromosome still remain connected. As a result, each chromosome maintains its X-shaped structure.

Telophase I

A schematic shows two overlapping, circular cells, each with a nucleus and two chromosomes. The cytoplasmic portions of the cells are light grey, and the nuclei are dark grey. The chromosomes in the left-hand cell are mostly green, but the lower regions of the right chromatids are orange. The chromosomes in the right-hand cell are mostly orange, but the lower regions of the left chromatids are green. Both cells have remnants of the mitotic spindle in the cytoplasm.

As the new chromosomes reach the spindle during telophase I, the cytoplasm organizes itself and divides in two. There are now two cells, and each cell contains half the number of chromosomes as the parent cell. In addition, the two daughter cells are not genetically identical to each other because of the recombination that occurred during prophase I

I dont kno what is this because since this is layers of earth its hard for me

Answers

Cant see the picture/question

Answer:

I'm so confused. what is the question?

Explanation:

is it on Earth's layers?

describe how habitat loss is a threat to biodiversity

describe how pollution is a threat to biodiversity

describe how invasive species are a threat to biodiversity

describe how over-exploitation is a threat to biodiversity

describe how Others ex: epidemics are threats to biodiversity

I'll give extra points + brainliest

Answers

Answer:

the answer to the first question, ( not sure about the others.)

Explanation:

without a home animals will be unable to live. Therefore if their homes are unavailable to them, their species will die out, eventually making them

extinct

Can anyone help me please

Answers

Answer: in explanation

Explanation:

For the first one the answer is friction since it is reduced when wet

The second or third I don’t know

The second answer is C

Compare and contrast biblical creationists and evolutionists worldviews.

Answers

Answer:

The Biblical creationists worldview is that the earth was created by God in a matter of 6 days. The evolutionists worldview is that the earth was created by the big bang in a matter of millions of years. They compare by both having the earth created but they contrast mainly by the cause and time that the earth was created.

Christians believe that the earth was created in six days because when God spoke it happened but evolutionist believe that the world was somehow I just created out of in the middle of nowhere again and matter came from that explosion and overtime evolutionied into humans.

Isidro visits the same park every week. The park has lots of different rock formations. How does the rock at the park change from week to week?

Answers

Answer:

There is no way that sedimentary rock can form from material in igneous rock. Isidro visits the same park every week. The park has lots of different rock formations. The rock will not change at all.

Explanation:

Answer: It can change in many different ways, but my explanation is the most common.

Explanation: Erosion and Weather. Weather has a big impact of the world around us. Weather and Erosion work together. The world is constantly changing, including the rock formation. For example, if it rained all last week the formation would be different because there is a chance that some of the rock was chipped away (depending on the strength and build of the rock and how old it is). This is when Erosion takes place. Erosion is a cycle. Erosion helps for other rocks and different shapes of rocks.

Hope this helps!

PLSSSS HELPPPPPPPP ME THIS IS SO HARD PLSSS

Answers

Explanation:

read the passage first

1.animals adapt to there surroundings to be safe from predators.

2.blending into their environment

3. birds migrate to survive the cold. they go into warmer climates where there will be food available. when they hibernate it’s to keep the animal warm during the winter using there stored body fat.

4.instincts are behaviors animals inherent from their mother. a learned behavior is something they learn from practicing new behaviors.

5. they blend into there habitat because they are very colorful like the coral reefs they live in so it’s difficult for predators to see them.

You can get all the answers on your reading sheet:)

What planet is next to the moon

Answers

Answer: Earth Lol?

Explanation:

how does binomal nomenclature work? I need a small answer!!!!! no more then 1 sentance! i will give brainliest!!!

Answers

Answer:

The first part of a scientific name is called the genus and the second part of a species name is the specific epithet.

Answer:

it combines 2 names into one giving every species a different scientific name

Suggest any 2 reasons why do we need to respire while sleeping?

Answers

Answer:

respire means breathe. If we don't breathe at night, oxygen can't go to our brains or any parts of our body for it to function properly and we will eventually die if we don't breathe.

Explanation:

Respiring is not the same as breathing. It’s the chemical reaction that takes place in our cells.
2 reasons:
- respiration produces energy that is essential for bodily functions
- respiration gets rid of carbon dioxide in the body, which is toxic

It is said that humans can have up to 22 miles of DNA in their body, that’s if you attached it all.
Q: How can chromosomes hold so much DNA?

Answers

Chromosomal DNA is packaged inside microscopic nuclei with the help of histones. These are positively-charged proteins that strongly adhere to negatively-charged DNA and form complexes called nucleosomes. Each nuclesome is composed of DNA wound 1.65 times around eight histone proteins.

Non copy-write simple answer:

The unique structure of chromosomes keeps DNA tightly wrapped around spool-like proteins, called histones that support its structure. This allows our chromosomes to hold so much DNA, and without such packaging, DNA molecules would be too long to fit inside cells.

Compare and contrast biblical creationists and evolutionists worldviews.

Answers

Answer:

Evolutionists believe that the world was created/much older than the bible. While creationism is where people believe that humanity itself was created by god.

PLEASE HELP, I WILL GIVE BRAINLIEST, 5 STARS AND ALL THAT STUFF, WRONG ANSWER OR LINK AND I WILL REPORT YOU
thank you <3

Is this a scientific model? Use complete sentences to explain why or why not.

Answers

Answer:

Sample text

Explanation:

This is for the other person to get Brainliest :0)

enjoy your day/night

The ____ is the fleshy side part if the face A. Cheek B. Chin C. Jaw

Answers

Answer: cheek

cheeks are very fleshy in humans

The answer is Cheek!!!!!

Why do members of Congress involve themselves in casework?

a. It requires legislators to travel to foreign countries to address issues related to American interests and involving themselves in it helps members of Congress gain credibility and respect among their peers and the American electorate.

b. It is work that legislators do in committees to edit or revise the language of a bill, and involving themselves in it helps members of Congress increase the chances of their bills being passed and being turned into laws.

c. It is work that legislators do to help their constituents address a problem, and involving themselves in it helps members of Congress win popular support and observe how effectively the executive branch is handling government programs.

d. It involves criminal cases in which federal laws are broken, and involving themselves in it helps members of Congress better understand what bills to support and what bills to reject.

Answers

Answer:

You haven't been answered in 3 weeks, so Ima just snatch these rq. Hope you got what you needed.

Explanation:

The oceanic plate is ____ than the continental plate and therefore would be forced under the continental plate when they bump into each other. This is known as a subducting plate.

A. More Dense
B. Less Dense

Answers

Answer:

b less dense lmk if this is wrong..

Explanation:

A. The oceanic plate is denser.

I dont kno what is this because since this is layers of earth its hard for me

Answers

Answer:

A volcano was located nearby at one time.

Explanation:

a volcano was located near by at one time

I need help I’m confused

Answers

Answer:

E, A, C, B, D

Explanation:

You weight is the force of gravity pulling you towards earth. A push or pull is a force. Gravity pulls everything down towards Earth. Friction slows things down like a ball rolling. If there was no friction a ball would roll forever. When you push on a door you contact it while using a force, contact force.

C,A,E,B,D

This is because gravity fulls things down so C and the others have a very good explanation if you think about them

Can someone please help?

1st Select:
A. Granite
B. Basalt
C. Metamorphic Rocks
D. Sedimentary Rocks

2nd Select:
A. Granite
B. Basalt
C. Metamorphic Rocks
D. Sedimentary Rocks

Answers

Answer: first is granite, second is basalt.

Explanation:

Answer:

1st one: A. Granite

2nd one: B. Basalt

Which statements are true?
Choose THREE answers that are correct.

a. Senators and members of the House of Representatives must agree to serve at least two terms in office.

b. Senators and members of the House of Representatives must live in the state they represent.

c. Senators have to have been a U.S. citizen for nine years prior to being elected; members of the House of Representatives must be American citizens for seven years before being elected.

d. Senators must be at least 30 years old; members of the House of Representatives must be at least 25.

Answers

Answer:

C is true, D is false b and A are true so basically

Explanation:

A,B,C are true

Which phrases apply to metamorphic rock formation? Check all that apply.

form from existing rocks

form without melting

appear foliated or non-foliated

form from liquid rock

form from deposition

require heat and pressure to form

Answers

Answer:

the ⛰️ melts in heat and forms in

Other Questions

Shane is an a baseball team. He averages 6 hits in 30 times at bat. How many hits should you expect him to have after 180 times at bat Which of the following is not a major motivation behind the rise of American Imperialism?Group of answer choicesLearn about other culturesCompete with countries like Great Britain and France militarilyA Belief in Cultural SuperiorityStrengthen the EconomyFlag question: Question 2Question 2 2 ptsForeign policy related to expanding power and building an empire is called Group of answer choicesMilitarismImperialismNationalismEmpiricismFlag question: Question 3Question 3 2 ptsIdea based on a belief in the superiority of your country, which leads to putting the needs of your country firstGroup of answer choicesNationalismWhite Mans BurdenImperialismMilitarismFlag question: Question 4Question 4 2 ptsWhich example of foreign policy made it clear that the U.S. would intervene in any situation they felt they were needed?Group of answer choicesManifest DestinyRoosevelt CorollaryMilitarismImperialismFlag question: Question 5Question 5 2 ptsWhich war included fighting in both Cuba and The Philippines?Group of answer choicesThe Great WarPhilippine-American WarSpanish-American WarRoosevelt CorollaryFlag question: Question 6Question 6 2 ptsPresident Roosevelt's philosophy of not looking for trouble but maintaining a powerful Navy that could handle conflicts if necessary was referred to asGroup of answer choicesManifest DestinyRoosevelt CorollaryBig Stick DiplomacyImperialismFlag question: Question 7Question 7 2 ptsWhat was used to sour public opinion in the U.S. toward the Spanish prior to the Spanish-American war? *Hint: the sinking of the USS MaineGroup of answer choicesManifest DestinyBig Stick DiplomacyYellow JournalismMonroe Doctrine Richardo is a middle-aged man. His waist circumference measurement of 45 inches places him at ______ risk for chronic, obesity-related diseases. 19. A gene is ____if the alleles for a trait are different (Mm). The pH of an acidic solution is 4.83. What is [H"]? Which of the following best describes human behavior?Multiple ChoiceO Human behavior is charactenzed by using check boxes for symptoms that fll into abnormal categories.o Human behavior has hard lines that delineate between normal and abnormal activities.Human behavior varies from Individual to individual and culture to culture, so it is impossible to authoritatively say what is normal versus abnormal.O Human behavior ranges from normal to abnormal on a continuum.< Prev This will count as your test grade for this unit. This is to prepare you for the written final exam. There are five topics within this unit. Please demonstrate your knowledge of each of the five topics by writing two sentences WHICH DEMONSTRATE YOUR USING THE TOPIC IN SPANISH and represent what you learned in each lesson (so ten total sentences). These do not have to be long sentences but should show that you are able to use what you learned in the specific lesson. Be creative! Your sentences can be about what you would like, but if you use a translator or Spanish at a level above what we have learned, you will not get credit. Here are the five topics and remember, two sentences from each: 1. Ms Adjetivos (underline the adjectives) 2. El verbo IR (underline the verb IR)3. Los verbos encantar y gustar (underline encantar and gustar)4. Present Tense Verbs (underline your present tense verbs)5. Poder and Dormir (underline poder and dormir) I need help with this question! Whoever is correct, I will give brainliest! Write the subtraction expression as an equivalent addition expression and then evaluate it.2(10) Below is a passage from the Declaration of Independence. "... That to secure these rights, governments are instituted among men, deriving their just powers from the consent of the governed. - That whenever any form of government becomes destructive of these ends it is the right of the people to alter or to abolish it..." Source: US National Archives and Records Administration Based on the passage, the Founding Fathers were influenced by which Enlightenment idea? A. separation of powers B. social contract C. natural law D. checks and balances Politicians are no strangers to using political spin to improve favorability ratings related to specific events (such as economic downturns). For this assignment, you will consider what actions a president or politician might take to improve favorability ratings during an economic downturn. You can use real world examples. Consider the positive and negative side effects of such an action (cause and effect relationships), as well as potential long-term consequences in your decision-making model. Your response should be approximately 1-2 paragraphs in length. Explain the pattern that you notice when dividing by 10,100 and 1,000Pls do NOT do this : ajndauidnsauanan in answer placeAnd pls do NOT put FILES in answer place.Tysm Food taxes intended to shift consumption towards a healthier diet are controversial. Some people think that individuals should make their own choices, and if they prefer unhealthy products, the government should not interfere. In view of the fact that those who become ill will be cared for at some public expense, others argue that the government has a role in keeping people healthy. Required:In your own words, provide arguments for or against food taxes designed to encourage healthy eating. question is on picture attached What is the function of the following organelles?NucleusCell membranePlasma membraneMitochondriaVacuoleEndoplasmic reticulumCell wallChloroplasts RibosomesCytoplasmAre the following organelles found in plant cells, animal cells, or both?NucleusCell membranePlasma membraneMitochondriaVacuoleEndoplasmic reticulumCell wallChloroplastsRibosomes Cytoplasm what is one way that many other people are better equipped to be parents 6. The police department of a major city has found that the average height oftheir 1,250 officers is 71 inches, with a standard deviation of 2.3 inches. Usingthe normal curve table, answer the following:a. How many officers are at least 75 inches tall?b. How many officers are between 65 and 72 inches tall?c. If an officer is at the 35th percentile in terms of height, how tall is she or he?d. Assuming an equal amount of service, the top 10% of the police officers interms of height also make higher salaries than their less favored fellow of-ficers. How tall does an officer have to be to get a better salary?e. What is the probability of encountering an officer who is 66 inches tall orless?f. What heights are so deviant that their probability of occurrence is .05 orless? (b) The pGoG protein is known to block the G, to S transition in the cell cycle. Explain why this preventsmiosis from happenina in he cell(c) Before treating melanoma cells with capsaicin, researchers pretreated the cells with an inhibitor ofcalcineurin. Predict the effect of this pretreatment on the ability of capsaicin to induce apoptosis by thepathway shown in Figure 2. Provide reasoning to justify your prediction.(d) Researchers claim that many cancers include a mutation in the gene encoding pGoG. Support theresearchers claim. 8.2x + 9y + 2(2.5x) + 10xyplz Help A taxi service charges a flat fee of $1. 25 and $0. 75 per mile. If Henri has $14. 00, which of the following shows the number of miles he can afford to ride in the taxi? m less-than-or-equal-to 17 m greater-than-or-equal-to 17 m less-than-or-equal-to 20. 3 m greater-than-or-equal-to 20. 3.