Three of the major characteristics used to classify organisms are cell structure, mode of nutrition and cellularity. These characteristics help scientists determine how organisms are similar to each other as well as how they are different from each other.
Classifying an organism according to its cell structure means determining if it is a prokaryote or eukaryote and then determining if the organism has a cell wall or other organelles, according to Dave Krupp of the University of Hawaii .
Mode of nutrition refers to how an organism gets its food. Organisms can be classified as autotrophs or heterotrophs. Autotrophs make their own food, while heterotrophs must eat other organisms to survive. If an organism is an autotroph, it can also be classified as a photoautotroph or a chemoautotroph. Stephen T. Abedon of Ohio State explains that photoautotrophs produce their own food using energy from sunlight. Chemoautotrophs produce food using the energy from electron-donating compounds.
Cellularity refers to how many cells an organism has and how those cells are arranged. Some organisms are single-celled, while others are multicellular. Advanced organisms have cells organized into tissues.
Answer:
Water has the property of cohesion and adhesion. Cohesion provides the property of water to get attached with other water molecules and it holds water molecules together, adherence provides the property of stickiness to any surface to the water molecule.
These two properties together allow water molecules to move upwards against gravity. Water moves by capillary action through the water column. Cohesion and adhesion create a pull on the column which transport the water towards the leaves from where they get evaporated.
This evaporation then causes tension on another water molecule and this tension then pulls another water molecule towards leaves.
Answer:
In order to find out the genotype we do a testcross of green pea pods with yellow pea pods.
Explanation:
1. If the F1 generation consist of green pea pods only then the genotype of the green pea pod is 'GG' (i.e the dominant alleles).
<h2>
TEST CROSS
</h2>
Green pea pods X Yellow pea pods
GG X gg
<u>Gametes:
</u>
G X g
<u> F1 Generation:
</u>
<h2>
Gg
</h2>
2. However if the F1 generation consist of 50% green pea pods and 50% yellow pea pods then the genotype of green pea pods is 'Gg' (both the dominant and recessive alleles).
Green pea pods X Yellow pea pods
Gg X gg
<u>Gametes:
</u>
G g X g
<u>F1 Generation:</u>
<h2> Gg, gg
</h2>
We can relate this to Mendel's Law of segregation and meiosis as
- Both the alleles segregate into seperate gametes (i.e they are sorted independent of one another).
- This segregation is similar to the first division of meiosis in which homologous chromosomes of gene are segregated in daughter nuclei
Nbddbdbbngentics are not y diff
A/an <u>seminal vesicle</u> is a fluid-filled sac in the scrotum along the spermatic cord leading from the testicles.
- The male reproductive system includes a pair of glands called seminal vesicles that are located on the back of the bladder base in men.
- Their major job is to create the semen-making fluid that is expelled during ejaculation.
- The majority of the fluid that makes up semen is produced and stored by two tiny glands called seminal vesicles.
- The seminal vesicles' fluid is sent into the ejaculatory duct during ejaculation, where it might mingle with sperm and other reproductive fluids.
- The androgen-dependent seminal vesicle glands release a sizeable portion of the fluid that eventually turns into semen (seminal fluid).
- The majority of species' contributions to semen volume come from seminal vesicle glands.
learn more about seminal vesicles here: brainly.com/question/11223304
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