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adell [148]
2 years ago
13

How does plan b work?​

Biology
1 answer:
harkovskaia [24]2 years ago
8 0

Answer:

Plan b is a backup plan if your original plan doesn't work:)

Explanation:

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What is the path that sperm travels, starting from the seminiferous tubules and ending at the location of fertilization?
Dennis_Churaev [7]
The sperm start travels in the seminiferous tubules of the testes where spermatozoa are born, and then transport to the epididymis which sperm passes to the vas deferens and it ended at the utero-tubal junction where egg fertilizes in the fallopian tubes.
8 0
3 years ago
In animals, nitrogenous wastes are produced mostly from the catabolism of ________. phospholipids and glycolipids proteins and n
guapka [62]

Answer:

<u>Option-</u> "Proteins and Nucleic acid."

  • In animals, nitrogenous wastes are produced mostly from the catabolism(break down of macro molecules into simpler ones) of <u>Protein molecules. </u>

Explanation:

  • <u> Proteins and nucleic acids:</u>

Most of the organisms ingest different types of materials. And some of them are proteins which are composed up of different amino acids, as the proteins are important in many ways, they help in cells reproduction and growth etc.

And the nucleic acids are important polymers, which are required for carrying the operation of genetic material from one cell or being to another.Or it may occur simply from one generation to another in the form of RNA and DNA.

<u>Why they are broken down?</u>

Both the polymers consists the Nitrogen atom as the main constituent in there molecular structure, so that is why the break down of these materials results in the form of nitrogenous materials.

  • When proteins level exceeds from a certain level they need to be controlled and thus required the excessive materials to be excreted from the body. There are different forms or levels of the nitrogenous waste products which are excreted from an animal body. As there levels of organisms excrete them in different forms,which are as below:
  1. <u>Beings living on land and Marine Fish:</u> The nitrogenous waste is excreted mostly in the form of urea or uric acid, but mostly in the urea which is just because they have an optimum level of water as the solvent.Along with that the marine fish can also excretes the nitrogenous waste in the form of trimethylamine oxide.
  2. <u>Ave's(Birds):</u>Birds have a less availability of water in there body which makes them to excrete the nitrogenous waste product in the form of uric acids.
  3. <u>Freshwater Fish:</u> They excrete the amount of nitrogenous waste from the body in form of ammonia, as they have an abundance of water as solvent. While, there is an abundance of water in the environment, which they are able to dissolve the amount of nitrogenous waste products present inside the body and excrete it in the form of ammonia. Which is less toxic form of the nitrogenous waste materials.
4 0
3 years ago
What is the relationship between "seeing" with the eye and "perciving" with the brain
NISA [10]

Answer:

Our eyes can trick our brain in some manner. When the eye see an image, our brain assumes that the image being seen is a image which had been seen in the past. Therefore, our brain is tricked into believing that the image which is being seen is of something which has been visualized before whereas in actual it is a new image. Hence, this is the relationship between seeing of the eyes and perceiving of the brain.

3 0
3 years ago
(SCIENCE)
LiRa [457]
C. according to Earth's existing magnetic field. 
4 0
3 years ago
Read 2 more answers
many organisms that undergo chemosynthesis use instead of to fuel the processes that convert carbon dioxide into sugars.
OLEGan [10]

Answer:

Many organisms that undergo chemosynthesis use hydrogen sulphide (H2S) instead of sunlight to fuel the processes that convert carbon dioxide into sugars.

Explanation:

Prokaryotic microorganisms, principally bacteria and archaea (referred to as “bacteria” in the following), carry out chemosynthetic reactions. Energy is produced in chemosynthetic reactions from oxidizing reduced compounds.

Chemosynthesis is the conversion of carbon (usually carbon dioxide or methane) into organic matter using inorganic molecules (hydrogen or hydrogen sulphide) or methane as an energy source. Most energy is initially derived from sunlight via plant photosynthesis. Example, bacteria and methanogenic archaea living in deep sea vents

Learn more about Chemosynthesis - brainly.com/question/14727352

#SPJ4

7 0
1 year ago
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