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aliina [53]
3 years ago
8

The single most important feature to consider when purchasing a scuba regulator is: How well it performs in controlled laborator

y testing. A second-stage adjustment knob to ensure ease of breathing. The availability of regular, professional maintenance. Both the first and second answers are correct.
Biology
1 answer:
serg [7]3 years ago
8 0

Answer:

A diving regulator is a pressure regulator that reduces the pressure of gas in the tank and deliver it to the diver so that he/she can breathe easily. It must pass the controlled laboratory testing and must have a second adjustment knob to ensure ease of breathing. Modern regulators are precision made and designed to work under demanding conditions. 1st stage and 2nd stage, diaphragm and piston, exhaust valve and purge button are types of diving regulators.

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1. About of all species on Earth<br> have become extinct.<br> 10%<br> 50%<br> 99%
natulia [17]

Believe it or not, 99.9% of the species on Earth have gone extinct. Now, not all of these were caused by Humans, some were caused by MAJOR cataclysmic events such as the extinction of dinosaurs or other prehistoric animals that make up a large amount of the species on Earth. And remember that all the prehistoric plants are also included, because every plant organism is ALSO a species.

Hope this helps, if not, comment below please!!!

5 0
3 years ago
How many seeds develop from each ovule?<br> a) One.<br> b) Two<br> c) Three. <br> d) Four.
Readme [11.4K]

Answer: option "A" One seed develops from each ovule.

Explanation:

Ovules are the female reproductive part of the plant which is internally covered by the nucellus and integuments further helped in fertilization and development of seed.

After fertilization, ovule is the part of the plant develops into seed, after a period of time food tissue is developed inside it consisting the seed coats called integuments.

pollen grains or sperms are being transferred through the pollen tube to the embryo sacs from integuments only, which results into the fertilization and development of seed.

4 0
3 years ago
The number of protons within an atom of an element is equal to its atomic mass true or false
Marta_Voda [28]
False, atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element's isotopes
8 0
3 years ago
Read 2 more answers
State the monosaccharaides that form these isaccharides​
Minchanka [31]

Answer:

Explanation:

Well the question was a little unclear, but for disaccharides:

(alpha) Glucose + (alpha) Glucose = Maltose

(alpha) Glucose + Fructose = Sucrose

(alpha) Glucose + Galactose = Lactose

4 0
3 years ago
why the Eukarya domain includes more complex living things than the Archaea or Bacteria domains? A. All prokaryotes are unicellu
kykrilka [37]

Answer:

The correct answer is C eukaryotes have a greater variety of genetic material than prokaryotes.

Explanation:

Prokaryotic cells consist of single chromosome and their DNA is present in a dense region called nucleoid.As one copy of each gene is present in the chromosome prokaryotic cells are haploid.The DNA of prokaryotic cells are circular

 Whereas eukaryotic DNA is linear and multiple distinct chromosomes are present in eukaryotes.Two copies of each chromosome are present are in many eukaryotic cells.As a result the eukaryotic cells are diploid in nature.

   Due to this greater variety of genetic material the domain eukarya are more complex than archea and or bacteria domains.

5 0
3 years ago
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