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Zepler [3.9K]
3 years ago
13

Why are drift nets a problem?

Biology
2 answers:
devlian [24]3 years ago
5 0
They can accidentally catch dolphins, turtles, even orcas. Greenpeace is actively trying to get them banned.
BlackZzzverrR [31]3 years ago
3 0

Answer:

The correct answer is option D.

Explanation:

The free-flowing nets used in oceans to catch fish by their gills are known as drift nets. A net can have a dimension of up to 15 meters deep and 89 kilometers in length. These nets are not selective in nature, as various fishes comprising marine mammals can get trapped in them.  

It can trap turtles, sharks, dolphins, and seabirds. These unwanted organisms are withdrawn from the nets and are thrown back dead by the fisherman into the ocean. The drift nets are an extremely destructive fishing technique and are also banned in various parts of the world.  

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I need help with offspring science
REY [17]
The alleles of offspring vary, some are dominant and some are recessive, meaning that some traits get passed down and some don't, for example,: a dominant trait might be blue eyes, a parent would have blue eyes, and pass that dominant trait to their child so that the child would also have blue eyes, recessive traits are traits that skip a generation.
For example a grandparent might have black hair, but their child won't have black hair, however, their grandchild will have black hair, therefore the black hair trait is recessive and skipped a generation
Hope this helps
4 0
3 years ago
The primary reason that osteoporosis accelerates after menopause in women is: * 2 points A. Increased osteoblast activity. B. Re
Nutka1998 [239]

Answer:

The correct answer is D. Reduced levels of circulating estrogens.

Explanation:

Estrogens prevent the loss of calcium and ensure its proper mineralization, thus preventing the bones from becoming brittle, maintaining the consistency of the skeleton and preventing osteoporosis. Osteoporosis is a skeletal disease in which there is a decrease in bone mass density. Thus, the bones become more porous, the number and size of the cavities or cells that exist inside them increases, they are more fragile, they resist shocks worse and they break more easily. Menopause is the definitive cessation of ovarian function that, externally, results in the disappearance of the menses and usually occurs around 50 years (the interval goes from 45 to 55 years). It is the gradual loss of calcium in the bones, which accelerates in the first years of menopause due to estrogen deficiency. At the beginning of the disease, there are no symptoms and, as it progresses, there is a tendency to suffer fractures, which leads to a decrease in height.

7 0
3 years ago
A slow-growing cherry-red colored mold with numerous microconidia and no macroconidia was isolated from a sample of skin scrapin
Doss [256]

Answer:

1. Growth on cornmeal agar

2. KOH prep

Explanation:

Cornmeal agar is a nutritional deficient media containing :

  • Corn meal 8g / zein 40 g / 100ml
  • Agar 4g
  • Distilled water 200 ml
  • Large , highly refractory, thick walled.

KOH preparation (10 - 30% ) used to destroy keratin, leaves fungal hyphae.

  • Can add a chitin-specific stain
  • Calcofluor white fluorescent stain increases sensitivity

Hence the organism can easily be identified by these two tests.

3 0
3 years ago
What happens when the cell undergoes the life cycle stages too quickly?​
Mademuasel [1]
If a cell is not carefully controlled it can cause cancer. which causes cells to happen too fast.
4 0
3 years ago
A poison added to an in vitro translation mixture containing mRNA molecules with the sequence 5′-AUGAAAAAAAAAAAAUAA-3′ has the f
kipiarov [429]

Answer:

The correct answer is c it inhibits the movement of small subunit relative to the large subunit.

Explanation:

According to the question the the poison that is added in vitro translation mixture containing mRNA molecules specific sequence result in formation of Met-lys dipeptide that remains attached to the ribosome.

    This means the translocation step that deals with movement of smaller subunit of ribosome to the next codon(Here to the third codon) is blocked.

3 0
3 years ago
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