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netineya [11]
3 years ago
8

The development of vascular tissue allowed some seedless plants to

Biology
1 answer:
kiruha [24]3 years ago
6 0
The development of vascular tissue allowed some seedless plants to C. grow taller. The vascular tissue helps transfer nutrients throughout the plant and therefore helps it grow taller.
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If a certain mammal has a haploid number of 13, how many chromosomes are there in
goldenfox [79]
The answers are 26 and 13 respectively.

Haploid cells means that the cells has a half number of chromosomes in the nucleus than other normal cells. These cells are results of meiosis, which is a kind of cell division that produces 4 genetically different daughter cells. The cell divides without duplicating its genetic material. Common haploid cells include such as gametes.

In opposite of haploid cells, we have diploid cells. They have 2 sets of chromosomes, which is the full set that the organisms could have. They're usually the results of mitosis, a kind of cell division that produces 2 daughter cells that are genetically identical to both the other daughter cell and the parent cell. They are important for activities such as growth, repair etc. These diploid cells appears in somatic cell, aka the normal body cells.

Therefore, there you have it, somatic cells has 2 sets of chromosomes, so it's 13 + 13 which makes it 26, and gametes, in haploid condition, a given 13.
8 0
4 years ago
If you start with 5ng of template DNA.How much would you have<br> after 10 cycles?
snow_lady [41]

Answer:

5.12μg of DNA

Explanation:

PCR is a method use to amplify DNA. It often require primers ( short sequence) nucleotides, heat stable polymerase enzymes, and thermocycler.

DNA strands are double by every cycle of PCR and it denoted by the formula 2^n  where n is the number of  cycle.

starting with 5ng,

the amount after 10 cycles = 2¹⁰ × 5 ng = 5.12μg of DNA

6 0
3 years ago
Explain the actions that were occurring at the cellular level to produce this movement. include sources of energy and any possib
ICE Princess25 [194]
<span>The possible effect of muscle fatigue is being experienced when muscles are unable to generate force.

This occurs when muscle ATP is being in the process of metabolism of biomolecules. For example sugar and fats.
ATP generates muscle contraction. Muscle fatigue occurs when ATP is being depleted and results in strenuous exercise.
There is also lactic acid accumulation and oxygen depletion.</span>
4 0
4 years ago
Read 2 more answers
Describe a mutation that could occur in a species that might increase the lifespan of the species. Be sure to justify your respo
dem82 [27]
One example of a mutation that could occur in a species that might increase its lifespan is increased bone density. With high bone density, an animal is more likely to survive a heavy hit with no bone damage. This, in turn, means that the animal's vital organs are able to be protected by the bones, meaning the difference between life and death.
8 0
3 years ago
Which type of heterotroph is a mouse?
AVprozaik [17]

Answer:

D

Explanation:

Both mice and rats are omnivores, which means they eat plants and animals, but they tend to enjoy different food items. During times of starvation, a mouse will even eat its own tail!

5 0
3 years ago
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