suggest a reason for the great variability seen in the structure of pollen grains

Answers

Answer 1

Hey~

Its affected by the different flower/plant types.

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Related Questions

What do ribosomes produce following
instructions from the nucleus?
A. energy
B. proteins
C. DNA

Answers

Answer:  Here's what I could find:

Ribosomes get their orders for protein synthesis from the nucleus, where portions of DNA (genes) are transcribed to make messenger RNAs. An mRNA travels to the ribosome and uses information it contains to build a proteins with specific amino acid sequences.

Explanation: I'm pretty sure it's protein, if not then it's DNA.

Which of the following would be most negatively impacted by the use of DNAse, an enzyme that breaks down
the chemical bonds that make up DNA?

Answers

Answer: The nucleus, because nuclear DNA would be destroyed.

DNA present inside the nucleus of a cell would be negatively impacted by DNAse.

What is DNAse?

The enzyme known as a deoxyribonuclease, or DNase for short, is responsible for degrading DNA by catalyzing the hydrolytic breakage of phosphodiester links found in the DNA backbone.

Nucleases, a collective name for enzymes that may hydrolyze the phosphodiester bonds connecting nucleotides, include deoxyribonucleases as one of its many subtypes. Deoxyribonucleases come in a vast range of varieties, each with distinct biological processes, chemical mechanisms, and substrate preferences.

Exodeoxyribonuclease, a form of exonuclease, is a type of DNase that selectively "cleaves" residues at the terminals of DNA molecules. Others, including endo deoxyribonuclease, a subgroup of endonucleases, cleave any point along the chain.

While some are generally agnostic in terms of the DNA sequence they cut, others, such as restriction enzymes, are quite sequence-specific.

Therefore, DNA present inside the nucleus of a cell would be negatively impacted by DNAse.

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Cellular respiration use sugar and _______ to make ATP,_________ and ______

Help

Answers

Oxygen, water and carbon dioxide

Which cell should i do Plant or Animal and please give me 5 part of cell from that group

Answers

Answer:

An animal cell.

it has a irregular shape.

ribosomes.

cytoplasm.

nuclei.

cell membrance.

Explain how the nucleus works with the ribosome to create proteins for the cell.

Answers

They receive their order for protein synthesis from the nucleus where the DNA is transcribed into messenger RNA, which is also called (mRNA). mRNA travels to the ribosomes, which translate the code provided by the sequence of the nitrogenous bases in the mRNA into a specific order of amino acids in a protein.

Pure liquid water has a PH of ?

Answers

Answer:7

Explanation: Drinking water and natural water has mixed minerals and gases.

Answer:

7

Explanation:

trust me just took it


Select the correct answer.
Which technique would most probably involve using a magna brush to detect a latent print?
A.
carbon powder dusting
B.
ninhydrin exposure
C.
iron powder dusting
D.
silver nitrate exposure
E.
superglue fuming

Answers

i think the answer is c !!


The technique that would most probably involve using a Magna brush to detect a latent print is known as Iron powder dusting. Thus, the correct option for this question is C.

What is Latent print?

Latent print may be defined as an impression of the friction skin of the fingers or palms of the hands that have been transferred to another surface. The permanent and unique arrangement of the features of this skin allows for the identification of an individual as a latent print.

Iron powder is commonly placed into brake pads, drum brake lining, and other applications in order to construct the necessary amount of friction. Iron powder dusting is a type of technique that is utilized as a filler that can help increase the performance and durability of these products by dissipating the generated heat.

Therefore, iron powder dusting is a type of technique that would most probably involve using a Magna brush to detect a latent print. Thus, the correct option for this question is C.

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What organelles can be found in a prokaryotic cell? Pls answer ASP.

Answers

Answer:

Cell Wall

Cell Membrane

Cytoplasm

Ribosomes

2. Of the plates listed, which will receive the highest number of hits from the Sun's rays when the Earth is positioned as shown below

A Plate A
B. Platec
C. Plate
D. Plate

Answers

Answer: Plate D because it is at the equator

Answer:d is the answer your welcome:)!

A nurse made a tragic mistake and hooked a sick patient up to an IV line that included pure water. The contents of the IV bag were then injected into the patient. The patient is now getting sicker. What could be happening?

Answers

Answer:

The water is hypotonic to the body of the patients

Explanation:

Pure water is generally hypotonic to the red blood cells in the body of humans. Hence, if a person is hooked up to an IV line that included pure water, the red blood cells in the person's body will take-in water, become turgid, and then start lysing. This will make the person become sick or even cause death in severe cases.

Helppp! I don’t know what to put for genotype or phenotype because it’s not asking anything specific

Answers

jvffd

Explanation:

dsmhvf

what are five relationships between animals

Answers

Answer:I will be pilot anyways I know one there is a commensalism between a dolphin and the birds where the birds push the fish to the top of the water column and then the birds push the fish down to the dolphins I will be pilot

Explanation:

Please help, I will mark you as Brainiest!

Answers

This cell is in telophase since the chromosomes have reached the poles of the mother cell.

If it was metaphase there would be an ecuatorial plate which is not present.

who knows this answer for brainliest and 10 points?

Answers

Answer:

1/4

Explanation:

There are four outcomes:

Bb

bB

BB

bb

only one of those four have double dominant, so there is a 1 in four chance

Answer:

1/4

Explanation:

My answer got deleted for no reason. Darn content bot

what is a group of tissues working together called

Answers

A group of tissues performing a particular function in the body forms an "organ"

A group of organs that work together to maintain a stable internal environment and perform a particular function is called as "organ system".

How many ATP molecules can the cell produce from a single molecule of glucose through the complete process of cellular respiration? O A. 2 ATP O B. 36 ATP O C. 16 ATN O D. 48 ATP​

Answers

Answer:

I would say the answer is:

B. 36 ATP :)

In a botany experiment, a light source is placed below a plant. Over a six-week period, the plant's substantive growth is observed and recorded. If the plant is healthy, what observations might be recorded?

Answers

Answer: if the plant is healthy you may see the stem get longer , leaves grow out ,or the plant will start to bud.

Explanation:

It depends on what kind of plant you are working with but most likely the healthy plant will also have a regular color, leaves, consistent growth and possibly budding

which of the following would not be considered a nontraditional sport

Answers

Answer:

theres no options..?

Explanation:

. . . . . . .

What conclusion can you draw from the presence of the adult blowfly eggs on the corners of Anna's mouth and nostrils? Group of answer choices The Lab had a broken screen that allowed flies to enter from the outside. Anna has been dead for more than a few hours. Her killer must have placed them there to throw us off their track. These fly's mean nothing.

Answers

Answer:

Anna has been dead for more than a few hours.

Explanation:

With the presence off eggs shows us that there was enough time for the flies to discover her and lay the eggs.

A chimpanzee has 48 chromosomes. When performing meiosis, one chromosome does not split properly in Anaphase II, causing one cell to have an extra copy of that chromosome. Knowing what you know, how many chromosomes should the MUTATED chimpanzee egg cell have? 48 49 24 25

Answers

Answer:

The mutated cell will have 25 chromosomes.

Explanation:

Meiosis is a cell division process in sexual reproduction which involves two successive divisions of a cell having a diploid (2n) number of chromosomes into four daughter cells having a haploid (1n) number of chromosomes.

Meiosis consists of two successive nuclear divisions, meiosis I and meiosis II. Each division consists of these stages: prophase, metaphase, anaphase, and telophase.

Anaphase consists of anaphase I and II. During anaphase II, the centromeres linking the two pairs of chromosomes which are called chromatids separate, and the sister chromatids move toward the opposite poles of the cell and are now called chromosomes.

Therefore in the chimpanzee having 48 chromosomes, after underoing meiosis, each daughter cell will have 24 chromosomes. If there is a case of non-separation of one chromosome, the cell will have 1n + 1 chromosomes i.e. 24 + 1 = 25 chromosomes.

plz will mark brainliest

Answers

Answer: Graph B

Explanation:

Since graphs A and C both are equal, the lines are not above or below one another, but for graph B, the dotted red line is higher than the green line.

What is the sentence of tissue?

Answers

Answer:

Vitamin C helps maintain healthy connective tissue.

Explanation:

The virus remains dormant in nerve tissue until activated.

Most mutations occur randomly. True or false

Answers

ANSWER:

FALSE

Explanation:

HOPE IT HELP

7. Which of these words does NOT describe obsidian?
A. igneous
B. glass-like
C. large grained
D. extrusive

PLEASE HELP ME I'LL DO ANYTHING!!!!

Answers

igneous

Explanation:

it's just not its igneous

Which of the following are matched correctly? (choose all that
apply)
short bone- carpals
long bone- femur
Irregular bone- Vertebrae
Flat bone- cranium
Irregular bone- sternum

Answers

The correct answers are

Short bone-carpals

Long bone-femur

Irregular-vertebrae

Flat bone-cranium


After playing in an old shed, two boys tell their mother that they hurt all over. She checks and finds that they both have fevers. One says that he is dizzy and his head hurts, while the other says he thinks he might vomit. Wondering what the boys have gotten into, their mother seeks medical help. After running tests, the doctor informs her that the boys have managed to pick up a hantavirus. It is a very serious strain, Sin Nombre, and they must get treatment straight away. Considering the boys' situation, where do they MOST likely live?

Answers

Answer:

Considering the boys' situation, the boys live in the rural areas of one of the western United States, e.g. California.

Explanation:

Hantavirus is spread by rodents and is most common in rural areas of the western United States during the spring and summer months.  Hantavirus pulmonary syndrome also occurs in South America (especially in Argentina, Chile, Uruguay, Paraguay, Brazil, and Bolivia).  Hantavirus cases have also occurred in Canada and some parts of Asia, where they reportedly caused kidney disorders rather than lung problems.

You have learned that each one of your cells contains one copy of your unique genome. Given the fact that all the cells in one human contain the same DNA, how is it possible that our cell types are so different, resulting in four different tissue types?

Answers

Answer:

See the answer below

Explanation:

Yes, the cells in one human contain the same DNA. However, during gene expression, not all the genes are expressed for every cell. Only a specific region of the DNA is expressed in cells and the cells in which the same DNA region is expressed end up performing similar roles in the body of organisms. The portion of the DNA that is expressed dictates the function which these cells will serve. This is called the differentiation of cells.

Cell specialization and tissue differentiation are due to the fact that although somatic cells have the same DNA, they express different genes and therefore generate different cells/tissues.

The human body contains approximately 200 cell types, which can be classified into four types of tissues: epithelial tissue, connective tissue, muscle tissue, and nervous tissue.

All these tissues and cell types are derived from three embryo layers, i.e., ectoderm, mesoderm, and endoderm.

The process of differential gene expression from these three embryo layers leads to the development of different types of cells/tissues in different regions of the developing embryo.

For example, the expression of the connective tissue growth factor (CTGF) gene has been associated with the generation of connective tissue during embryo development.

In conclusion, cell specialization and tissue differentiation are due to the fact that although somatic cells have the same DNA, they express different genes and therefore generate different cells/tissues.

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PLEASE HELP I WILL GIVE BRAINLIEST!!!!!!!!

Answers

Answer:

B. By increasing greenhouse gases and global warming

Explanation:

BRAINLIEST me pls

Have a nice day!

Answer:

if i were you it sould be B if you get it right then there you go

what are extinct animals ? ​

Answers

Definition or examples?

Okay ill give you a brainy thing if you answer correctly please don't guess this is a big part of my grade God bless​

Answers

I would say false because there can be so many different organisms in an ecosystem. A chicken can eat grasshoppers and ants but the both of them may not be recorded in the web. Let me know if im correct please.
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