All categories

3 years ago

1. List the levels of biological organization in order.

Biology

1 answer:

ycow [4]3 years ago

4 0

Answer:tissue

Explanation:

Tissues are groups of cells that have a similar structure and act together to perform a specific functio”. ... Groups of tissues make up organs in the body such as the brain and heart.

You might be interested in

Why is meiosis important for organisms? It allows for genetic variation among organisms. It determines which genes are dominant

Studentka2010 [4]

Meiosis is important for organisms since it allows for genetic variation among organisms.

<h2>Further Explanation</h2><h3>Cell division</h3>

Cell division is the process in which cells undergo division to form other new cells.

There are two types of cell division;

<h3>Mitosis Division </h3>

Mitosis is a type of division in which a parent cell undergoes division to yield two daughter cells that are similar to the parent cells.
The daughter cells have equal number of chromosomes as the parent and are identical to the parent.
This type of cell division normally occurs in somatic cells of organisms and facilitates growth and development of organisms.

<h3>Meiosis division</h3>

Meiosis division is a type of division that occurs in gamete cells where a parent cell divides into four daughter cells that differ from the parent cells in terms of the number of chromosomes.
In meiosis the daughter cells have half the number of chromosomes as the parent cells.

Meiosis occurs in the gamete cells and facilitates sexual reproduction in living organisms.

Meiosis occurs in two phases, that is, meiosis I and meiosis II
During the process of meiosis several processes occurs that cause genetic variation among organisms.
These processes include, crossing over, independent assortment of genes, among others.

<h3>Crossing over </h3>

Cross over is the process that occurs during the prophase I phase of the first stage of meiosis known as meiosis I.

During the process of crossing over, genetic material is exchanged between homologous chromosomes which enhances the genetic variation in organisms.

Keywords: Cell division, meiosis, crossing over, genetic variation

<h3>Learn more about:</h3>

Cell division: brainly.com/question/5220873
Meiosis: brainly.com/question/5220873
Crossing over: brainly.com/question/5220873
Genetic variation: brainly.com/question/5220873

Level: High school

Subject: Biology

Chapter: Cell division

Sub-topic: Meiosis

9 0

3 years ago

Read 2 more answers

Please help worth 95 points. Project: Algae Cultures: Directions

Alik [6]

Answer:

UNICELLULAR, MULTICELLULAR, OR COLONIAL EURKAYOTE WHOSE CELL WALLS MAY CONTAIN CELLULOSE; CAN BE PLANTLIKE, ANIMAL-LIKE, OR FUNGUS LIKE

a) IF IT IS A EUKARYOTE, BUT NOT AN ANIMAL, PLANT, OR FUNGI THEN IT IS A PROTIST

1. Protists are classified more easily by what they are not than by what they are

a) Protists are not animals, plants or fungi because they do not have all of the characteristics necessary to place them in any of these kingdoms

2. Kingdom Protista was created to include this diverse group of more than 200,000 organisms

3. ALL PROTISTS ARE EUKARYOTES WHICH MEANS THEY HAVE MEMBRANE BOUND ORGANELLES AND A DNA FOUND IN A MEMBRANE BOUND NUCLEUS

a) like all eurkayotes, the DNA of protists is found within the membrane bound eukaryotes, there are remarkable differences in their reproductive methods

b) Some reproduce asexually by mitosis while others exchange genetic material during meiosis

PROTISTS ARE CLASSIFIED BASED ON THEIR METHOD OF OBTAINING NUTRITION

1. There are divided into three groups using this method:

a) animal-like protists/protozoan

b) plantlike protists/algae

c) fungus like protists

HETEROTROPHIC, UNICELLULAR, ANIMAL LIKE PROTIST

1. Usually ingest bacteria, algae, or other protozoans

2. REQUIREMENTS:

a) ingest food, heterotrophs

b) no cell walls

3. Some are parasites

1. Cillates

2. amoebas

3. apicomplexans

4. zooflagellates

5. paramecium

Explanation:

6 0

2 years ago

Read 2 more answers

Compare the structure and function of the human body system to a nonliving system

CaHeK987 [17]

The human body has living cells that interact with other living cells (Food) and inorganic cells (Salt, Oxygen). It also has a lot of chemical reactions that simultaniously happen inside of it.
Inorganic systems usually do not interact with themselves, and the reactions are mostly exterior.

6 0

3 years ago

What happens during the process of glycolysis?

maksim [4K]

Answer:

Glycolysis is the process in which one glucose molecule is broken down to form two molecules of pyruvic acid (also called pyruvate). ... Thus, four ATP molecules are synthesized and two ATP molecules are used during glycolysis, for a net gain of two ATP molecules. hope this answerssss u

7 0

3 years ago

Read 2 more answers

What are the two major components of extracellular matrix?

Advocard [28]

The two main components of the extracellular matrix are Elastin and Collagen.

The extracellular matrix is an intricate macromolecular network that is found in the extracellular space. The matrix is composed of polysaccharides and very diverse proteins, locally secreted and assembled forming a complex network that surrounds the cells. The matrix is highly developed in connective tissue and its derivatives. The extracellular matrix is formed mainly by proteins, glycosaminoglycans,proteoglycans and glycoproteins, organized in diverse networks that constitute the different tissues. <em>The most abundant proteins are collagen and elastin.</em>

Collagen is a family of very abundant proteins in the body of animals. Collagen molecules can represent 25 to 30 % of all body proteins. Its main mission in the tissues is to form a framework that supports the tissues and that resists the forces of mechanical tension.

The elastin molecules are very close to each other through links between the regions rich in the amino acid lysine. It is an abundant protein in may extracellular matrices and appears as a component of the so called elastic fibers, which are onsoluble aggregates of proteins.

3 0

3 years ago