This is very easy, since the lakes are near a crop field, runoff fertilizers have obviously contaminated the water, and to prevent it : Careful contouring of the land can help prevent this by slowing and spreading the flow of water, giving it time to soak in before it runs downhill. Terraces, swales and buffer zones can be used to keep fertilizer from entering ponds and other waterways. That was from google for a more detailed response.
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Answer: density-independent factors
Explanation:
The ecological concept that best categorizes weather (i.e., temperature) as a limiting factor in yellow jacket wasp survival is referred to as density-independent factors.
Density-independent factor, is also referred to as limiting factor, and it simply means the things that have an impact on the population of the living things in a particular area without taking into consideration of the density of the population for the area e.g food limitation, weather conditions, pollutants, fire etc.
C. Centromere.
Spindles make up fibers, chromosomes are apart of DNA, Centriole is in animal cells near the nucleus aids in the process of making spindle fibers in the cell division.
Answer:
Explanation:
In 1869, Friedrich Miescher isolated "nuclein," DNA with associated proteins, from cell nuclei. He was the first to identify DNA as a distinct molecule. Phoebus Levene was an organic chemist in the early 1900's. He is perhaps best known for his incorrect tetranucleotide hypothesis of DNA.
Answer:
Sperm
Egg
Eyegote
Vulva
The male reproductive system consists of external organs. The testes in the scrotum produce the male gamete, sperm, which is ejaculated in seminal fluid by the penis. The female reproductive system primarily consists of internal organs.
