true or false: Plant cells need centrioles in mitosis.

Answer:

In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response.

Answer:

1. true

2. false

3. true

4. sneeze, cough

5. children, adolescents

Explanation:

NERVOUS SYSTEM INFECTIONS

FULL QUIZ ANSWERS:

1. Tetanus is caused by polluted drinking water.

FALSE

2. Tetanus can occur in crushing or deep wounds.

TRUE

3. Communication for the senses and muscle coordination in the body is accomplished by the __________ system.

NERVOUS

4. Inflammation of the membrane linings of the spinal column or the brain is called ________________.

MENINGITIS

5. Meningitis most frequently affects:

CHILDREN

ADOLESCENTS

6. Muscle spasms and locked jaw, followed by convulsions, are symptoms of:

TETANUS

7. Vaccines have been produced to prevent and treat both tetanus and meningitis.

TRUE

8. Chlostridium tetani thrives near the surface of the skin.

FALSE

9. Why is tetanus associated with injuries which occur outdoors?

BACTERIA IN THE SOIL CAUSES TEANUS

10. Meningitis may be transmitted from one person to another by:

SNEEZE

COUGH

Gene therapy and gene splicing are separate but linked processes. A new organism can be created by cutting and recombining genetic material from two separate sources, a process known as gene splicing.

It is a technique that scientists utilise in the lab to develop new organisms with desired features. On the other side, a healthy gene is introduced into the patient's cells during a medical process called gene therapy to treat diseases and disorders.

Gene splicing and gene therapy share certain similarities despite their distinctions. Both procedures entail the modification of genetic material, frequently derived from several sources, in order to produce the desired outcome.

The goal of gene splicing is the development of a new creature or its modification.that of an active organism. Treatment of a disease or disorder is the intended outcome of gene therapy. Both procedures also entail the manipulation of genetic material using specialised methods, such as recombinant DNA technology. Finally, for both methods to be effective, a good understanding of genetics is necessary.

Learn more about  gene splicing at:

https://brainly.com/question/31075704

#SPJ2

Answer:

A. Precambrian Time

Explanation:

Fossil evidence of jellyfish dates back to the Cambrian Period, 500 million years ago.

Answer:

The purpose of mitosis is the creation of diploid somatic cells and the purpose of meiosis is the creation of haploid sex cells.

Explanation:

Mitosis takes place in somatic, or body cells, and meiosis takes place in gametes, or sex cells.  The purpose of mitosis is growth and repair, while the purpose of meiosis is creating gametes with half the normal number of chromosomes and is for reproduction.  Mitosis goes through Interphase, Prophase, Prometaphase, Metaphase, Anaphase, Telophase, and Cyokinesis once to produce two genetically identical diploid somatic daughter cells.  Meiosis goes though that twice (Meiosis I and Meiosis II) to produce 4 genetically unique haploid gametes.  It has stages (Prophase, Metaphase, Anaphase, and Telophase) such as Prophase I and Prophase II because meiosis occurs twice.  Another difference is that mitosis happens throughout your life and meiosis occurs before females are born and throughout a males life.  

Answer:

(attached Punnett square below)

100% of the offspring will have black feathers

0% of the offspring will have white feathers

Explanation:

All the possible offspring have the genotype Bb, and since B (black) is dominant it will be the phenotype regardless of the presence of a b allele.

Therefore, all the offspring will be black (100%) and since none of the genotypes are bb there's no chance for white feathered chickens (0%)

hope this helps!

Answer: He performed dihybrid crosses

Explanation:

Dihybrid cross is simply refered to as a cross that is done for two genes that are different with regards to their traits. For example, if we cross two maize plants which have different shapes and color let's say that one is white and round while the other maize's colour is yellow and its shape is wrinkly.

Since Mendel wanted to find out if the pattern of inheritance for one trait affected the pattern of inheritance for another, the experiment performed will be dihybrid crosses.

Answer:

d

Explanation:

It warms the water vapor in the clouds and turns it into water droplets.

The process involved in the formation of rains is option B, it warms the clouds in the sky and causes precipitation.

Water cycle is a geological phenomenon through which the water content in the atmosphere and hydrosphere is balanced. The heat radiated from sun warm up the water bodies make the convection currents that evaporates water.

The water vapor rise to the atmosphere and maintain the air moisture. When this vapor cools down they condense and precipitates as rain, snow or sleek.

This process involves the transfer of heat energy and matter. Here, the matter is water itself with its three phases.  Hence, option b describes the cause of rain.

Find more on water cycle:

brainly.com/question/1151425

#SPJ6

Your question is incomplete. Your complete question probably was as follows:

Which process describes the cause of rain ?

It causes precipitation to form and collect in the ocean.

B) It warms the clouds in the sky and causes precipitation.

C) It warms the water on the Earth's surface and causes it to evaporate.

D) It warms the water vapor in the clouds and turns it into water droplets.

Answer:

D

Explanation:

Answer: A. a ring of actin filaments forms at the metaphase plate. The ring contracts, forming a cleavage furrow, which divides the cell in two. In plant cells, Golgi vesicles coalesce at the former metaphase plate, forming a phragmoplast.

Explanation:

hope this helps have a great day❤️❤️❤️

Answer:

ty for helping me now ill help you

a

Explanation:

cytokensis is the physical process of cell division. It divides the cytoplasm of a parental cell into two different daughter cells.

In plants, a cell wall forms. Cytokensis occurs in mitosis and meiosis. The objective for cytokensis is to divide the parent cell into two daughter cells. So cytokensis in plants is when a cell wall forms in between the daughter cells. Plant cells have walls, so they CANNOT divide using a cleavage furrow. A cell plate forms across the cell during telophase.

In animal cells, cleavage furrow forms. This pinches the cell in half and forms two different cells.  

Answer:

I think it is maintaining water balance since transpiration in plants is basically when the plants roots absorb water and then release the water in the form of vapour (Don't know much about plants but I think maintaining water balance is most probably the answer)

Answer:

C but see below.

Explanation:

e. The paper clip will likely fall off because it wasn't attached to the nail long enough to be magnetized.

The same answer would apply to the nail. It likely was not held onto the magnet long enough to pick up a magnetic force that would be strong enough to overcome the gravitational force pulling on the clip.

Of the four answers you have given us, I would agree with C.  But as I've argued above, the real reason is likely there.

Answer:

C

Explanation:

Edge 2021

Answer:

1.07 moles react

Explanation:

because it mass in gram is 10.7 and molar mass is 10 and if we divide answer is 1.07

Answer:

Science not a fan but 2 moles would be my guess

Explanation:

they banned my other account but it still chardon

Answer: for example in a nerve cell are different from the genes that are expressed in a muscle cell. Both cells have the same DNA, but expressing different genes generates different cell types.

Explanation:

Answer:

Its A no hate If I am wrong :)

Explanation:

As best as anyone can gauge, cell metabolism likely continues for roughly four to 10 minutes after death, depending on the ambient temperature around the body.

During this time period, oxygenated blood, which normally exchanges carbon dioxide with oxygen, is not circulating. Thus, cell respiration—which uses oxygen to make cellular energy while creating carbon dioxide as a by-product—creates carbon dioxide that is not transported out of the cell. This lowers the pH of the cell, resulting in an acidic intracellular environment. This acidic environment causes intracellular membranes to rupture—including those around the cell's lysosome, which contains enzymes for digesting everything from proteins to fats and nucleic acids. Once the membranes have burst, these enzymes are released and begin to digest the cell from the inside out. This process is known as autolysis (or self-digestion).

Answer:

During this time period, oxygenated blood, which normally exchanges carbon dioxide with oxygen, is not circulating. Thus, cell respiration—which uses oxygen to make cellular energy while creating carbon dioxide as a by-product—creates carbon dioxide that is not transported out of the cell. This lowers the pH of the cell, resulting in an acidic intracellular environment. This acidic environment causes intracellular membranes to rupture—including those around the cell's lysosome, which contains enzymes for digesting everything from proteins to fats and nucleic acids. Once the membranes have burst, these enzymes are released and begin to digest the cell from the inside out. This process is known as autolysis (or self-digestion).

Explanation:

Answer:

1:b

2:iron

3:light bulb

4:b

5:c

6:b

Answer: Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. ... As a result, the tree-colored moths are more likely to survive, reproduce, and pass on their genes.

Explanation:

Answer: important because it helps make sure no one will get hurt

Explanation:

if there weren't lab rules then people could burn themselves or get severely hurt

Answer:

They keep you safe

Explanation:

They are important becasue they keep you safe while you are doing an expirement

Answer:

I think it's, the nonrandom mating is defined solely in terms of departures from HW proportions for neutral alleles, without reference to phenotypes. The impact is measured in terms of genetic parameters, such as genetic variance, expected gene flow, and Δ F, assuming the infinitesimal model and mass selection.

Answer:

They are natural, inorganic, solid, and are chemical composition and have a crystalline structure.

Ah, I'm not sure. I hope someone helps you!

Answer:

C

Explanation:

I just finished the test

Answer:

DO IT YOURSELF

Explanation:

ok?

Answer: Look below =3

Explanation: The primary function of goblet cells is to secrete mucin and create a protective mucus layer. Other possible functions of goblet cells include immunoregulation. Goblet cell tissue samples can be preserved through cryopreservation and analyzed with light microscopy.

I hope this helps!

Answer:The primary function of goblet cells is to secrete much and create a protective mucus layer.

Explanation:

eh I don't know lol

A

evaporation.

Explanation:

Answer:

C. Evaporation

Explanation:

Hope this is helpful