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Liono4ka [1.6K]
3 years ago
7

Humans use many chemical substances for farming that consequently affect biodiversity. These compounds, which are rich in nitrog

en and phosphorus, are used to fertilize crops. Excessive use of these compounds causes
Biology
2 answers:
posledela3 years ago
7 0

Answer:

algal growth due to eutrophication

Explaination:

Eutrophication is where these nutrient rich compounds mix with nearby water sources and promote the growth of large amounts of algae. Algae go through respiration and take up the dissolved O2 in water which causes these areas to experience low O2 levels. Everything needs O2 to survive thus nearby organisms and plants die out creating dead zones.

slavikrds [6]3 years ago
6 0

Answer:

eutrophication and algal growth

Explanation:

Did the test

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What the answer pls science
Ganezh [65]

Answer:

B

Explanation:

for someone to choke it means the person lacks oxygen in the sense that its oxygen path has been blocked so its B

6 0
2 years ago
For an organism to be classified in the animal kingdom, which characteristics must the organism have?
vovikov84 [41]

Explanation:

All animals are eukaryotic, multicellular organisms, and almost all animals have specialized tissues. Most animals are motile, at least during certain life stages. Animals require a source of food to grow and develop. All animals are heterotrophic, ingesting living or dead organic matter.

4 0
2 years ago
If a germ-line cell from a frog contains 10 picograms of DNA during G1 of interphase, then how many picograms of DNA would be pr
DIA [1.3K]

Answer:

10

Explanation:

The cell cycle is composed of three states: interphase, cell division and resting.

The interphase is composed of 3 phases: G1, S and G2 (in this order). During this state the cell prepares itself  for cell division. As part of the preparation the cell duplicates all its genetic material, that is, all its chromosomes. This duplication is done during the phase S.

During the meiotic cell division (composed of meiosis 1 and meiosis 2) a single diploid mother  cell (with duplicated chromosomes) produces four haploid daughter cells. the meiosis 1 produces two haploid cells with duplicated chromosomes, and the meiosis 2 produces 4 haploid cells with normal chromosomes (no duplicated).

If a germ-line cell from a frog contains 10 picograms of DNA during G1, then this cell will have 20 picograms of DNA before the product of the first meiotic division, and will have 10 picograms at the begining of the meiosis 2 (i.e prophase II)

7 0
3 years ago
Which connective tissue layer directly surrounds each axon in a nerve?
gregori [183]

Answer:

Endonerium

Explanation:

The endoneurium (also called endoneurial channel, endoneurial sheath, endoneurial tube, or Henle's sheath) is a layer of delicate connective tissue around the myelin sheath of each myelinated nerve fiber in the peripheral nervous system. Its component cells are called endoneurial cells.The endoneuria with their enclosed nerve fibers are bundled into groups called nerve fascicles, each fascicle within its own protective sheath called a perineurium. In sufficiently large nerves multiple fascicles, each with its blood supply and fatty tissue, may be bundled within yet another sheath, the epineurium.

4 0
2 years ago
Read 2 more answers
Why have plants in the alpine biome adapted to survive on limited nutrients?
NeTakaya

Answer:

The soil in the alpine biome is rocky and nutrient poor.  Plants that live in the alpine biome must be suited to the nutrient poor soil.

Explanation:

4 0
3 years ago
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