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3 years ago

How does the use of Gill nets affect biodiversity of the ocean?? Please someone help me

2 answers:

6 0

Once hooked on the line, they are ensnared in the gear and soon drown. Other fishing practices can also incur large amounts of bycatch. Trawling can drown turtles that get caught in nets. Gillnets are staked to the ocean ...

Anton [14]3 years ago

3 0

Some kinds of fishing gear can be even more destructive when they become lost or forgotten in the water because they continue to catch animals, a phenomenon known as “ghost fishing.” This is particularly wasteful and destructive because the gear can ensnare tons of animals that aren't being harvested or used in any way. Fishing piers can be sites of ghost fishing as lures and lines become wrapped around pilings, where animals swimming by become trapped.Fish are not the only victims, however, as birds that dive into the water for prey can also get caught in the lines when they enter the water.

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These are the three main organs that make up the plant body.

liraira [26]

Answer:

Chlorophyll-to trap enough light for photosynthesis

5 0

3 years ago

Read 2 more answers

Why is urine more concentrated in the morning?

Triss [41]

Most people's urine is darker in the morning as the kidneys work hard during the night to remove impurities and the urine is more concentrated.

6 0

3 years ago

Suppose that one of the normal children from Part B and one of the albino children from Part C become the parents of eight offsp

Aleks [24]

Full question from alternative source:

Albinism in humans is inherited as a simple recessive trait. for the following families, determine the most likely genotypes of the parents

Part A

Two normal parents have five children, four normal and one albino. What are the most likely genotypes of the parents?

Part B

A normal male and an albino female have six children, all normal. What is the most likely genotypes of the parents?

Part C

A normal male and an albino female have six children, three normal and three albino. What are the most likely genotypes of the parents?

Part D

Suppose that one of the normal children from Part B and one of the albino children from Part C become the parents of 8 offspring. What would be the expected number of normal and albino offspring?

Answer:

Part A - both heterozygous for the trait (Aa)

Part B - female aa, male likely AA

Part C - female aa, male Aa

Part D - 4 normal, 4 albino (50:50)

Explanation:

Part A

We are told that albinism is a recessive trait. Lets call it a and the normal allele A. Since neither of the parents have it, that must mean they each possess at least one copy of the dominant allele (either AA or Aa). Most of their children are normal, but 1 is albino. The albino child must have inherited two copies of the a allele, one from each parent. This means each parent must possess an a allele and must both be Aa.

Part B

Since the trait is recessive, we already know that the albino female must have the genotype aa. If her husband in homozygous normal (AA), all their children will be heterozygous (Aa), and therefore normal, which is the case in this cross. Therefore aa and AA are the most likely genotypes. However, it is still possible that the male has the genotype Aa. This would mean they had a 50:50 chance of producing an albino offspring. We know they have six normal children, so this is unlikely.

Part C

Since the trait is recessive, we know the female has the genotype aa. Unlike the last family, this family has some albino children. This means that the husband must be a carrier of the trait, but he is unaffected, so must be Aa.

As described in part B, if he is Aa and she is aa, they will have 50:50 normal:albino children. This is the ratio in this family.

Part D

The normal children from Part B are all heterozygous for the trait (Aa), inheriting one normal allele from their father, and one albino allele from their mother. The albino children from part C are all aa. Therefore, the cross is Aa x aa. We can draw a punnett square:

A a

a Aa aa

aa a Aa aa

Half the children have the genotype Aa, and half have the genotype aa. That means half will be normal and half will be albino. Therefore, 4 normal, 4 albino.

4 0

3 years ago

place the following in order from smallest to largest: amino acid, globular structure, CHON, amino acid sequence

Karo-lina-s [1.5K]

The correct order from smallest to largest would be:

H < C < N < O < Amino acid < Globular Structure < Amino acid sequence

The smallest should begin from the basic elements. Among C, H, O and N, the lightest is Hydrogen, followed by Carbon, Nitrogen, and Oxygen. Next is the amino acid which is the most basic unit of protein. This is the linear structure. Followed by the globular structure which is the tertiary structure. The whole would be the amino acid sequence which is quaternary structure.

4 0

2 years ago

What would you think would happen if you reduce the incubation time to 30 minutes?

Nataly_w [17]

Answer:

Enzymatic activities is usually efficient when it happens at an optimum temperature. This temperature aids its proper functioning and too much of heat could as well denature the enzyme.

When you reduce the incubation time of an enzyme to 30 minutes , the enzyme may or may not have enough time to reach the amount of free energy needed to drive the enzymatic reaction.

6 0

2 years ago