1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ludmilkaskok [199]
3 years ago
8

worldwide, fisheries are on the decline due to problems in fishing practices. discuss at least three of these destructive practi

ces, and explain the effect each is having on the marine environment
Biology
1 answer:
puteri [66]3 years ago
4 0

One is drift netting. These nets are indiscriminate and also catch, injure and kill fishes that are not intended to be caught. This, therefore, greatly affects the marine ecosystem. 

Second is over-fishing. This reduces the fish population to a point where they are unable to regenerate and hence predisposes/ condemning them to extinction   

Third is the destruction of marine ecosystem, deliberately, to clear an obstacle or pave the way for fishing lines. This damages the habits hence affecting the ecosystem from primary producers and up the food chain.

You might be interested in
Which of the following is a dihybrid cross?a. RrMM Rrmmb. RRMM rrmmc. RrMm RrMmd. rrMM RRmme. RrMm rrmm
Minchanka [31]

Answer:

c. RrMm x  RrMm

Explanation:

A dihybrid genotype is the one that is heterozygous for two genes. Hence, a dihybrid cross is a cross between two individuals that are hybrid for alleles of two different loci.

Among the given examples, the cross RrMm x RrMm is a dihybrid cross. Here, both given genotypes are heterozygous or hybrid for two loci (both genotypes have one dominant and one recessive allele for both the genes under study, R and r; M and m).

This cross explains the inheritance of two loci or two genetic traits. Hence, it is an example of dihybrid cross.

3 0
2 years ago
Which of the following is an example of primary succession?
kiruha [24]

Answer:

B. the appearance of lichens and mosses in an area where a glacier has recently melted away

Explanation:

Ecological succession, which refers to the series of changes that occurs over time in an ecosystem, can be of two types namely: primary succession and secondary succession.

Primary succession is a succession that involves an area where no form of life has grown previously, hence, the area of land is barren e.g bare rock. Primary succession is first colonized by species called PIONEER SPECIES e.g. lichens, mosses etc.

According to this question, "the appearance of lichens and mosses (pioneer species) in an area where a glacier has recently melted away" is an example of PRIMARY SUCCESSION.

4 0
3 years ago
All the following statements about destruction of cyclins are true EXCEPT: ubiquitin targets Cdks. destruction is carried out by
ZanzabumX [31]

Answer:

ubiquitin targets CDKs

Explanation:

Cyclins are named such because they undergo a constant cycle of synthesis and degradation during cell division. When cyclins are synthesized, they act as an activating protein and bind to Cdks forming a cyclin-Cdk complex. This complex then acts as a signal to the cell to pass to the next cell cycle phase.

Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.

6 0
3 years ago
Read 2 more answers
A solution with a pH of 4.15 is a(n)...
zzz [600]

Answer:

weak acid

Explanation:

4-6.9 belongs to weak acids

5 0
3 years ago
What sort of evidence can you use to show that all living things grow and develop
hoa [83]
A common human, they go from an embryo then develop into an infant then grow to a teen. once a teen they might go through changes...
a plant is also evidence, they develope from a seed to a small bud and grow to a small plant.
7 0
3 years ago
Read 2 more answers
Other questions:
  • What does the water lakes come from? Three correct answers
    12·2 answers
  • In the cells of some organisms, mitosis occurs without cytoki-nesis. this will result in
    7·1 answer
  • As a piece of linear DNA is replicated, the leading strand will have _____ RNA primer(s) and the lagging strand will have _____
    9·1 answer
  • Two atoms appear to have the same mass number. These atoms
    9·1 answer
  • Which of the following is a true statement?
    13·1 answer
  • In an experiment two potted plants, labeled Plant 1 and Plant 2, are placed in transparent plastic bags and left in the open. So
    7·1 answer
  • What is true of saturates fatty acids
    10·1 answer
  • Is a tiger shark a vertebrate or invertebrate
    12·1 answer
  • Why are there more marsupials in Australia than North America ?
    11·1 answer
  • Identify two properties of water and explain how each property allows water to play a large role in changing the Earth's surface
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!