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SCORPION-xisa [38]
3 years ago
8

How many sex chromosomes are there​

Biology
1 answer:
a_sh-v [17]3 years ago
6 0

Answer: 2

Explanation: There's X (female) and Y (male).

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What percentage of water is lost through the respiratory system?
HACTEHA [7]
<span>The normal daily input of water is about 2.5 L from beverages food, and metabolism. The normal daily output of 2.5 L consists of 1.8 L in urine, sweat, and feces, plus 0.7 L in insensible water loss. Insensible water loss is water that evaporates through the skin and from the respiratory tract. Insensible losses account for 0.7 L of water loss per day. The average human exhales an average of 0.35 L of water each day. This corresponds to about 14% of water lost through respiration.</span>
4 0
3 years ago
Read 2 more answers
multigene families include two or more nearly identical genes or genes sharing nearly identical sequences. a classical example i
vova2212 [387]

Identical and obviously duplicated gene sequences have gotten from one chromosome to another by chromosomal translocation.

In terms of genetics, a translocation takes place when chromosome fragments and the (often two) fragmented portions reassociate with other chromosomes. For the diagnosis of several genetic diseases and syndromes, the finding of chromosomal translocations can be crucial.

Multigene families are groups of related or identical genes that have developed by gene duplication. It is thought that a single ancestral gene was duplicated and varied to create multigene families. The multigene families that code for actins, hemoglobins, immunoglobulins, tubulins, interferons, histones, etc. are a few examples.

To  learn more about chromosomes, visit the link below:

brainly.com/question/11880347

#SPJ4

7 0
11 months ago
(image is in picture)
NikAS [45]

Answer:

My guess would be C

Explanation:

The crust, which is Earths outer solid layer of rock, is around 20km thick if I remembered correctly, and the ocean is nowhere near that, so there would be rock under the ocean.

If you find a better answer, then use it, because I'm not completely sure, but that's my best guess based on the possible answers

6 0
2 years ago
Read 2 more answers
Living organisms breathe oxygen into grow​
fredd [130]

Answer:

Most living things need oxygen to survive. Oxygen helps organisms grow, reproduce, and turn food into energy. Humans get the oxygen they need by breathing through their nose and mouth into their lungs. Oxygen gives our cells the ability to break down food in order to get the energy we need to survive.

Explanation:

5 0
2 years ago
Reflection questions need to be answered using complete sentences. Some questions may require a longer explanation in paragraph
natka813 [3]
1) Interphase is the longest phase and most of the cells are present in that very stage !!


2) Interphase is the longest phase and Anaphase is the shortest phase !! Interphase is the longest phase as in this phase the cells prepare themselves for dividing and it takes most of the time for gathering energy for division ; in this phase DNA also replicate !!


3)
Interphase: DNA replicates;

Prophase: Nuclear membrane starts disappearing and Centrioles go on opposite poles !! DNA condense to form Chromosome.

Metaphase: Chromosome attach to spindle fibre and starts to move to equitorial plate.

Anaphase: Centromere divide and half the chromatid goes on either pole

Telophase: Nuclear membrane starts to reassemble; Chrmosome goes to normal uncoiled state ; Other organelles starts appearing

Cytokinesis: Cell furrow forms and cell divides into two half.


4) In dividing cell nucleus membrane is absent while in non dividing cell the membrane is intact


5) Tip of the onion root is meristamatic cell which divides but if it is permanent cell ; there would be no division !!
7 0
3 years ago
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