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
deff fn [24]
2 years ago
7

In cod fishing, older and larger fish are more likely to be retained in nets than younger and smaller fish. Despite the removal

of these large breeders, the population is still reproducing. How do you think cod characteristics have changed due to the selection pressure from over-fishing?
A. Selection has led to increased growth rates.B. Selection has led to decreased growth rates.C. Selection has led to increases in the age of fish at the age of reproductive maturity.D. Selection has led to decreases in the size of fish at the age of reproductive maturity.
Biology
2 answers:
navik [9.2K]2 years ago
5 0

Answer:

The correct answer is - option d.

Explanation:

Selective pressure is the process or phenomenon that leads to the change or alteration in the behavior in a specific environment. It is the basis of the natural selection based on genetic variation.

In selection pressure population will decrease and adapt the size of the fish at the age of reproductive maturity, However the offspring in such condition would be less.

Thus, the correct answer is - option D.

AlexFokin [52]2 years ago
4 0

Answer:

D. Selection has led to decreases in the size of fish at the age of reproductive maturity.

Explanation:

The larger body size of the fishes is not an adaptive trait as it reduces the survival chances of these fishes. The process of natural selection tends to increase the frequency of the traits that increase the survival fitness of the organisms. Here, the fishes with smaller body size at the reproductive age have greater chances of survival and would reproduce more to leave more progeny. Over the generations, the selection pressure would increase the proportion of fishes that are smaller during reproductive age.

You might be interested in
Transcription and translation of the mrna molecule in protein synthesis occurs in two different locations. translation occurs __
Ad libitum [116K]
It occurs in the cytoplasm
5 0
3 years ago
How do chemical stains make light microscopes more useful
anastassius [24]
When a specimen is to be observed under the light microscope, scientists usually stain the specimens using different type of chemical stains depending on the type of specimen to be observed. Staining of specimen make the structures that are to be observed in the specimen very visible under the microscope, this make it easy for scientists to observe their structures.
8 0
3 years ago
How are alleles for the same gene related
Olenka [21]
Explained in greater detail, each gene resides at a specific locus (location on a chromosome) in two copies, one copy of the gene inherited from each parent. The copies, however, are not necessarily the same. When the copies of a gene differ from each other, they are known as alleles.
8 0
3 years ago
A friend says that all bacteria are harmful to people list three reasons this statement is incorrect.
nordsb [41]
-autotrophic bacteria give off oxygen (O2)
-flavor foods such as vinegar, yogurt, cheese, etc. (pasteurization)
-decomposers (bacteria)- recycle nutrients in food web
-enviromental clean-up- bacteria eat oil from oil spills
0health and medicine- bacteria break down food in your intestines/make
5 0
2 years ago
Read 2 more answers
An anthropologist discovers the fossilized heart of an extinct animal. The fossil indicates that the heart was large, well-forme
Len [333]

Answer:

e. The animal was endothermic and had a high metabolic rate

7 0
3 years ago
Read 2 more answers
Other questions:
  • In osseous tissue, blood vessels and nerves are found in the
    9·1 answer
  • What is the average life expectancy for someone with HIV? Does life expectancy differ around the globe?
    12·1 answer
  • Some plant seeds live through cold winters but do not sprout until spring. in winter these seeds are _____.
    12·2 answers
  • How does upwelling affect coastal fisheries?
    10·1 answer
  • Suzanne has been having difficulty falling asleep and waking up in the morning. She has also noticed that her appetite has chang
    11·1 answer
  • ______ transport moves nutrients from low to high
    7·1 answer
  • Can someone help me with this science diagram
    10·1 answer
  • Put the steps of mitosis in the correct order
    9·1 answer
  • What type of plate boundary form trenches
    14·1 answer
  • Life sciences about gaseous exchange please help.​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!