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sladkih [1.3K]
3 years ago
14

Which one of the following is a characteristic of a metal?

Biology
1 answer:
hammer [34]3 years ago
3 0
B. Metals conduct heat 
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For a species with a diploid number of 26, indicate how many chromosomes will be present in the somatic nuclei of individuals th
zhuklara [117]

Answer:

<h2>Haploid=13</h2><h2>triploid=39 </h2><h2>tetraploid=52</h2><h2>trisomic=14 </h2><h2>monosomic=12</h2>

Explanation:

Given;

A species with a diploid number of 26,  so 26= 2n ( a diploid cell),

so in haploid condition, chromosome number becomes half (13 in this case). triplod is when 2n + n, and 2n +2n ( tetploid). Trisomy and monosomy is the addition or deletion of a sinlge chromosome of a sinlge set  .

Haploid=13, one chromosome from each pair of chromosome set,

triploid=39 (13× 3); diploid+ n( 3n)

tetraploid=52 (13× 4) 4n

trisomic=14 (13+1) ; n+1

monosomic=12 (13-1); n-1

7 0
3 years ago
1. Which one lived in Antarctica earlier, the labyrinthodont, the lystrosaurus, or the duck-billed dinosaur? Explain
liubo4ka [24]

Answer:

The correct answer is - The labyrinthodont.

Explanation:

Fossils of These duck billed dinosaur were found in the Antarctica in sands that were 66 to 67 million years old, however these are also found in north America and north Europe.

About 110 million years ago, labyrinthodonts, the dinosaur that are amphibians. These are the animals that were lived in the river valleys of the Gondwana and the rift valley that was located at that time between Australia and Antarctica.

Thus, the correct answer is - The labyrinthodont.

7 0
3 years ago
What types of tissues/cells are found in the dermis?
qwelly [4]
The epidermis containsstratified squamous epithelium. The dermis contains connective tissue(areolar, dense irregular, blood), some smooth muscle (erector pili muscles) and some nervous tissue (nerves). Name the five layers of epidermis.

Hoped this helped!
3 0
3 years ago
Which one below shows the 5 levels of environment in order from the simplest level to the most complex?
PilotLPTM [1.2K]
The answer is C.
Organism, population, community, ecosystem, biosphere
8 0
3 years ago
What can possibly kill sperm in the Great Sperm Race?
Lynna [10]

Answer:

Answer:

THE GREAT SPERM RACE:

A sperm's race to fertilize an egg is not so easy. Out of about 250 million sperm ejaculated into the human vagina during intercourse, not more than one in a hundred will survive the Great race to the end due to the hurdles it has to face in the hostile, ACIDIC CHAMBER to the cervix (it has hundreds of tiny branching tunnels that can trap, crush and slowly kill sperm).

If ovulation is not occurring soon the sperm will "drown in a thick flow of cervical mucus

8 0
3 years ago
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