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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 These unwanted organisms are withdrawn from the nets and are thrown back dead by the fisherman into the ocean.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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Attached earlobes are recessive to free earlobes. If two heterozygous individuals have a child, what is the probability of the c
Sunny_sXe [5.5K]

Answer:

probability of the child having attached earlobes since it is recessive i.e (yy)

=1/4

=0.25 × 100%

=25%

Explanation:

If two heterozygous individuals have a child

i.e let the heterozygous individuals be  = Xy

if both traits crosses together; their F₁ offspring will be;  (XX, Xy, Xy, yy)

Xy  ×   Xy

          X             y

X        XX          Xy

y       Xy            yy

probability of the child having attached earlobes since it is recessive i.e (yy)

=1/4

=0.25 × 100%

=25%

4 0
3 years ago
How the animals and plants of a healthy ecosystem are organized and interact.
vlabodo [156]

Answer:

A healthy ecosystem consists of native plant and animal populations interacting in balance with each other and nonliving things (for example, water and rocks). ... Decomposers break down dead plants and animals, returning vital nutrients to the soil. Plants take up these nutrients, along with water, through their roots.

Explanation:

6 0
3 years ago
Which of the following best illustrates a type I survivorship curve, with higher death rates at older ages? Which of the followi
Rama09 [41]

Answer:

large mammals such as gorillas

Explanation:

The survivorship curves refer to the graphical representation of the proportion of the fraction of survivors or the individuals at a given age.

There are three types of survivorship curves which can be constructed by studying the life history of the organisms.

The type I survivorship curve is the curve which can be formed with the organism which has a high survival rate at the younger and middle age and high death rate at the older age. The type I curve can be characterised by its convex shaped. The type I is showed by the large mammals like gorilla, humans and many others.

Thus, large mammals such as gorillas are the correct answer.

4 0
3 years ago
Temperate deciduous trees lose their leaves in Fall. Explain why trees in temperate rainforest and tropical rainforest don’t los
oksano4ka [1.4K]

Answer: Many are DECIDUOUS TREES that lose their leaves in fall, but the broad-leaved trees of a tropical rain forest are evergreen. The mass of leaves of adjacent trees form a CANOPY.

Explanation: I hope this helps, I am stuck on the same question too.

7 0
3 years ago
A food handler who fails to report illness to the person in charge could cause a physical contamination?
Hunter-Best [27]

Answer:

True

Explanation:

Physical contamination are foreign objects such as hair, fingernails, broken glasses , jewelries etc that are mixed with food. Although, it is important for a food handler who realizes that he is sick such as having fever, jaundice,wound while working to report such to his supervisor or manager,who will then take necessary action and to avoid risk of contamination; yet not the only cause of physical food contamination.

Physical contamination does not necessarily have to occur until the food handler is sick. It could be as a result of carelessness or not paying attention enough by the food handler . Physical contamination might not at all times cause injury or illness to the customer, yet such could bring discomfort to a customer who notices foreign objects in his food while eating. To avoid risk of physical food contamination, it is important for food handlers to keep jewelries to a minimum, wash fruits and vegetables thoroughly, wear hear neatly tied back, throw out and replace cracked, chipped, or broken dishware, glassware and equipment amongst others.

8 0
3 years ago
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