100 points and brainliest!!

Don't miss is (Biology) There may be a lot but I assure you they are easy! (7th Grade)

10 questions with option choices

1. Chromosomes line up in the center of a cell during which phase?

a) anaphase

b) metaphase

c) prophase

d) telophase


2. Which stage of the cell cycle precedes cytokinesis?

a) G1

b) G2

c) interphase

d) mitosis


3. The figure represents which stage of mitosis? (Will be shown in attachment)

a) anaphase

b) metaphase

c) prophase

d) telophase

(Use this question for #4)


4. What forms during this phase?

a) centromere

b) furrow

c) prophase

d) two nuclei


5. What is the longest part of the the cell cycle?

a) anaphase

b) cytokinesis

c) interphase

d) mitosis


6. A plants root system is which level of organization?

a) cell

b) organ

c) organ system

d) tissue


7. Where is the meristem often found?

a) Liver cells

b) Muscle cells

c) tip of plant root

d) unicellular organism


8. Which is NOT a type of human tissue?

a) connective

b) meristem

c) muscle

d) nervous


9. Which are unspecialized cells?

a) blood cells

b) muscle cells

c) nerve cells

d) stem cells


10. Which level of organization completes a series of tasks?

a) cell

b) organ

c) organ system

d) tissue


That's it, thank you!!

Ima go eat, please help me though.

Answers

Answer 1

Answer:

owo i tried

Explanation:

B.

C.

need the attachment

still need the attachment

A.

D.

i dont remebr

A.

A.

C.

srry if im wrong!


Related Questions

3) What classification of unconformity occurs when sedimentary rock overlies igneous rock?
A) disconformity
B) nonconformity
C) angular unconformity
D) conformity

Answers

Answer:

B nonconformity

Explanation:

Before deciding on a medium to use, what should the presenter do?(1 point)

compare the strengths and limitations of each medium

decide on the number of still or moving images they need

know the age and size of their audience

chose the form they feel most comfortable with

Answers

Answer:

♡ madeline here! ♡

- -it's c ʕ •ᴥ•ʔ

hope I could help! have a great day

✧・゚: *✧・゚:・゚✧*:・゚✧・゚: *✧・゚:・゚✧*:・゚✧

.

Explanation:

Answer:

A) Comparing the strengths and limitations of each medium

Explanation:

That's what is said on the lesson and this is 100% right!

A cell has 10% glucose outside and 2% salt inside. Describe the direction of osmosis.
1.Water will move out of the cell.
2.There will be an equal amount of water movement into and out of the cell.
3.Water will move into the cell

Answers

Answer:

1. Water will move out of the cell

- There is a higher concentration outside of the cell

what is the average for a human piens A 2.inc B 4inc C 10 inc D 1 feet

Answers

Answer:

I'm gonna have to go with B 4 inches

Explanation:

it is B cause I'm below average and no one is longer than 10 inches

WHY IS A CENTER OF A DAISY YELLOW AND ITS PETALS ARE WHITE
HELP AND ILL PUT YOU ON BRAINLIEST - THANKYOU

Answers

Answer: B

Explanation:

Answer:B

Yellow light is reflected from the center so that means it is scattered. White light (all colors) is reflected off the petals.

Please help with this question worth 20 points

Answers

Answer:

To double its attacking power.

Explanation:

"Interaction with armed helper T cells activates the B cell to establish a primary focus of clonal expansion. Here, at the border between T-cell and B-cell zones, both types of lymphocyte will multiply for several days to constitute the first phase of the primary humoral immune response."

Which internal structure is an adaptation that provided organisms with the function to perform gas exchange on land?

Answers

The answer is the Gal bladder

Answer:lungs

Explanation:

Lungs

What happens to red blood cells when placed in a hypotonic solution?

Answers

Hope this helps this is what I used when I studied this

What is natural breeding?

Answers

Answer:

Natural breeding refers to the random mating that occurs between two individuals of the same species. Conversely, selective breeding has been performed for centuries by humans hoping to produce offspring with desirable traits.

where in a stem cell of an embryo is the instructions for how to build organs?  a. ribosomes  b. endoplasmic reticulum  c. Golgi apparatus  d. nucleus

Answers

Answer:

. In the nucleus.

Explanation:

The information for all bodily functions resides in DNA in every cell.

The Answer is D in the nucleus

Which event takes place first during
DNA replication

Answers

Answer:

The first step in DNA replication is to 'unzip' the double helix structure of the DNA? molecule. This is carried out by an enzyme? called helicase which breaks the hydrogen bonds? holding the complementary? bases? of DNA together (A with T, C with G)

Explanation:

Which of the following molecules are products of glycolysis? Select all that apply.
2 ADP molecules
2 NADH molecules
1 pyruvate molecule
4 ATP molecules
4 ADP molecules

Answers

2 NADH molecules is the only right answer

Glycolysis produces 2 NADH, 2 ATP, and 2 Pyruvate molecules.

Glycolysis is the process that is described as an oxidative pathway that typically breaks down the monosaccharides including galactose and glucose molecules and is further involved in the transformation of the energy released into chemical energy which can be used by cells. The products obtained from the glycolysis are:

2 ATP which is generated via substrate-level phosphorylation2 NADH as a result of reaction named redox reactions2 pyruvate molecules

Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules: Glycolysis, or the aerobic catabolic breakdown of glucose, produces energy in the form of ATP, NADH, and pyruvate, which itself enters the citric acid cycle to produce more energy.

Learn more about products of glycolysis

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The geologic species scale has units based on changes in rocks and fossils.
True
False

Answers

Well I’m not for sure but I think it’s false because the units can be Baer in animals too

The geological time scale/species scale is divided into different units of time depending on changes in the rocks and fossils. So the statement is true.

What is the geological time scale?

The lengthy period of time that the Earth's geologic history has taken up is known as geologic time. Starting at the beginning of the Archean Eon (4.0 to 2.5 billion years ago), formal geologic time runs to the present.

The Hadean Eon, an informal time period that runs from around 4.6 billion years ago (corresponding to Earth's first creation) to 4.0 billion years ago, is also frequently included in modern geologic time scales. The period of Earth's history that is reflected by and preserved in the planet's rock layers is known as geologic time.

Events throughout Earth's history are "calendared" according to the geologic time scale. It divides all of the time into named units of abstract time known as eons, eras, periods, epochs, and ages, in declining order of duration. Those geologic time units are counted according to stratigraphy, the correlation, and the categorization of rock layers.

Therefore, the geological time scale is used for dividing different units of time according to changes in rocks and fossils. Hence the statement is true.

Read more about geological scale, here

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Which example has the most kinetic energy a football resting on a kicking tee a hurt football player sitting on the bench a football flying through a goal post a penalty flag on the ground

Answers

Answer:

The football flying through the goal

Explanation:

Kinetic energy is basiaclly moving energy. Since only the football going through the goal is moving, that's the one with the most kinetic energy.  

What important gas do we take in when we breathe

Answers

Answer:

oxygen

Explanation:

we breath in oxygen and release carbon dioxide

hope this helps :)

Explain at least three ways in which a mutation in an individual's DNA could occur, and describe at least 2 effects a mutation could have on an individual's traits

Answers

Answer:

Mutations can occur from the following ways:

1. Errors that occur in DNA replication during cell division

2. Exposure to high-energy electromagnetic radiation

3. Exposure to chemicals mutagens

Effects of mutation include:

1. Genetic disorders

2. Cancers

Explanation:

A mutation is a change or alteration that occurs in the DNA sequence of a cell of an organism. These mutations can be passed on to offsprings of that organism. Mutations can occur from the following ways:

1. Errors that occur in DNA replication during cell division: during the process of cell division, the DNA in cell are copied many times. Some errors result when copying DNA, most of which are corrected during proofreading. However, some changes in the DNA sequence may not be corrected, thus resulting in a mutation.

2. Exposure to high-energy electromagnetic radiation: some types of electromagnetic radiation are ionizing, such as UV rays and X-rays. Prolonged exposure to these ionizing radiation may result in permanent damage to parts of the DNA, thereby resulting in a mutation.

3. Exposure to chemicals mutagens: mutagens are substances which are able to cause mutations. Some common chemical mutagens are alkylating agents such as ethylmethane sulfonate and N-methyl-N-nitrosourea.

Effects of mutation include:

1. Genetic disorders: in genetic disorders, certain normal functioning of the body processes are impaired. For example, hemophilia whereby blood lacks the ability to clot normally resulting in excessive bleeding.

2. Cancers: cancers occur when the cell of the body differentiate and grow abnormally. Various types of cancers include breast cancer, prostrate cancer, blood cancer etc.

The different between two molecules included the type of sugar that forms a section of the molecules and the identify of one of the four nigtrogenous bases that make up another section of the molecules. These two molecules are

Answers

Answer:

DNA and RNA

Explanation:

The difference between two molecules include the type of sugar that forms a section of the molecules and the identity of one of the four nigtrogenous bases that make up another section of the molecules. These two molecules are Ribonucleic acid and Deoxyribonucleic acid.

Ribonucleic acid contains Ribose sugar while Deoxyribonucleic acid contains Deoxyribose sugar which is the major difference between the two molecules.

If a strand of DNA has 45% A, what percent will be C?

Answers

Answer:

55%

Explanation:

Answer:

[tex]\boxed {\boxed {\sf C=5\%}}[/tex]

Explanation:

There is a method to calculating base percentages known as Chargaff's Rule. It states:

[tex]A+T+G+C=100\%[/tex]

We know the DNA has 45% Adenine or A.

Adenine always pairs equally with Thymine. In other words, the percentage of adenine equals the percentage of thymine (45% Thymine or T).

[tex]45\%+45\%+C+G=100\%[/tex]

[tex]90\%+C+G=100\%[/tex]

Subtract 90% from both sides.

[tex]90\%-90\%+C+G=100\%-90\%[/tex]

[tex]C+G=10\%[/tex]

Cytosine(C) and Guanine(G) pair equally and their percentages will be equal. We can divide 10% by 2.

[tex]C+G=10\% /2[/tex]

[tex]C/G=5\%[/tex]

The percentage of Cytosine or C is 5 percent.

What causes a volcanic eruption?

Answers

When a part of the earth's upper mantle or lower crust melts, magma forms. ... Although there are several factors triggering a volcanic eruption, three predominate: the buoyancy of the magma, the pressure from the exsolved gases in the magma and the injection of a new batch of magma into an already filled magma chamber.

The stomach is a relatively small muscular organ compared to the small intestine that can be a long as six meters

Answers

I believe it’s the large intestine

what is the diagram of 2NH3

Answers

Need picture of the diagram to answer

The measurement of how far the particles are pushed from their _______________is called amplification.
(Can somebody please help me out. I'm giving 20 points and Brainliest for the first correct answer.

limit


compression


wavelength


starting point

Answers

Answer:

i think its compression

Explanation:

...

Answer:

The anwser is the starting point hope this helps :)

Explanation:

i took the test and got it right :)

Why are fossil fuels cheaper in some places and more expensive than others?

Answers

Answer:

there could be a higher density of fossil fuels in one place, making its collection easy, where in another place, there might be a very low density of fossil fuels, making it hard to get, and therefore making it more expensive.

Explanation:

fossils aren't a blanket under the earth's crust. its spread out.

15. What is meant by combustion?​

Answers

Answer: D.

Explanation: Please give me Brainlest Please

PLEASE HELP QUICKLY! ANSWER AS MANY AS POSSIBLE. DO NOT ONLY SAY "I don't know"
1. How do we know the continents were ever connected (what evidence do we have)?
2. What does the map show about the Earth 225 million years ago ?
3. In what era was the Mesosaurus alive?
4. What animal do you think the Lystrosaurus is related to today and WHY?

Answers

Answer:

1. Wegener then assembled an impressive amount of evidence to show that Earth's continents were once connected in a single supercontinent. Wegener knew that fossil plants and animals such as mesosaurs, a freshwater reptile found only South America and Africa during the Permian period, could be found on many continents.

2. It shows that all continents started from a one large land mass. It might be named Pangea. Because people are close to each other, it's so easy to talk and talk about things not just about them but also about other people.

3.Mesosaurus, (genus Mesosaurus), early aquatic relative of reptiles, found as fossils from the Early Permian Period (299 million to 271 million years ago) in South Africa and South America.

4.The Lystrosaurus is a mammal-like animal from the early Triassic period that roamed modern day regions such as India, South Africa and Antarctica over 250 million years ago. It has tusks like an elephant and a beak similar to a turtle, and it was roughly the size of a pig.

Explanation:

hope that helps

I WILL GIVE BRAINLY PLEASE HURRY!!
Some towns have decided to bury their garbage to get rid of it. What is one harmful effect of this practice?

Answers

Answer:

It can put harmful substances into the atmosphere and boost climate change.

Explanation:

brainliest pls

Answer:

plants and animals habitats will be ruined and or killed off by this harmful practice

Which mutation results in the mutated DNA sequence having more or less,
nucleotides than the original?
Silent
Nonsense
Missense
Frameshift

Answers

Answer:

Frameshift

Explanation:

Mutations are randomly-occuring changes that occur within the genetic code, DNA  due to errors within replication. DNA molecules are long-chain, helical macromolecules that store genetic information They are made up of varying sequences of monomers called nucleotides. which form base pairs and sequences of codons in a reading frame, which gives instructions for protein formation.

Single nucleotide polymorphisms are common, and often result in no changes in amino acids, as silent mutations. Some errors add a random nucleotide (SNP) that results in a premature stop codon, called nonsense mutation. Missense mutations are SNPs that change the sequence of codons resulting in a different amino acid.

Frameshift mutations result from insertions or deletions of nucleotides not divisible by 3. This results in more or less nucleotides needed for a codon and disrupts the reading frame- this results in a different translation of proteins

1) What is the monomer (building block) of a protein?

Amino Acids
Nucleotides
Legos​

Answers

Answer:

Amino acids

Explanation:

Amino acids are the building blocks of a protein

Identify the type of mutation that occurred and explain in what way it affected the protien

Answers

Answer:

The type of mutation that occurs when in the DNA strand there is a change from guanine to cytosine is a nonsense mutation, since the triplet that should encode the amino acid encodes a stop codon and the protein cannot be completely synthesized.

Explanation:

The nonsense mutation consists of a change in one of the bases of the stranded DNA, which is transcribed into an altered mRNA, producing a stop codon, instead of an amino acid.

In the table it is observed that the CCA codon is a stop codon that cuts off the protein synthesis prematurely, leaving it incomplete and probably non-functional.

Sometimes this type of mutation can alter the sequence of amino acids but the protein may be complete enough to partially fulfill its function.

In raindeer black noses B are dominant over red noses b and walking domabst W over fly w. Cross 2 heterozygous reindeer ? What are the possible phenotypes and ratios?

Answers

I got BW, Bw, bW, and bw

you should be able to get all the possible traits because both of them are heterozygous.

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