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
SVEN [57.7K]
3 years ago
12

8. If a farmer plants the same crop in a field year after year, the soil becomes less fertile. What (1 point)

Biology
1 answer:
Anton [14]3 years ago
6 0

Answer:

loss of nutrients

Explanation:

1. Loss of top soil by erosion

2. Nutrient mining

3. Physical degradation of soil (poor structure, compaction, crusting and waterlogging etc.

4. Decrease in organic matter content and soil bioactivity

5. Loss of nutrients through various routes

Modern agriculture had used up the nutrients in our soil and now our food supply was suffering.

You might be interested in
A gene that affects hair length in dogs has two alleles. The allele for short hair (L) is dominant
Lelechka [254]

Answer:

This question lacks options, the options are:

A. Only recessive alleles are inherited from homozygous parents.

B. Dominant alleles grow weaker as they are passed from parents to offspring.

C. Only the parent with a dominant allele can pass that allele to offspring in sexual reproduction.

D. A heterozygous parent has an equal chance of passing either the dominant allele or the recessive allele to offspring.

The answer is D

Explanation:

This question involves a single gene coding for hair length in dogs. The allele for short hair (S) is dominant over the allele for long hair (s). This means that allele 'S' will always mask the phenotypic expression of allele 's' in a heterozygous state.

According to the question, two heterozygous dogs (Ss) were crossed to produce 6 shortt-haired offsprings and 2 long-haired offsprings. An heterozygous organism is that which contains two different alleles for a particular gene i.e. a combination of dominant and recessive alleles.

Based on this, during meiosis or gamete formation, an heterozygous dog (Ss) will produce gametes with the short hair allele (S) and long hair allele (s) in equal proportion i.e. 50-50. When the two gametes containing the recessive alleles (s) produced by each heterozygous parent fuses, an offspring with a recessive phenotype (long hair, ss) is produced.

Hence, a long-hair

phenotype can appear in the offspring of two short-haired dogs because a heterozygous parent has equal chance of passing either the dominant or recessive allele to the offspring.

6 0
3 years ago
You are riding a bicycle home from school. You average 5 meters per second and you are headed south. What motion can you determi
Talja [164]
B becuase wait for the first one day and then i’m the park to go go ahead to get it out and i’m and then i’m and i will
5 0
3 years ago
A woman with type AB blood is married to a man with type O blood.
Viktor [21]

Answer:

Jordan

Explanation:

In most cases, an O parent and an AB parent will have only A or B kids.

7 0
2 years ago
When bonds are broken, energy is released.<br> True or false
Elza [17]
False. <span>Breaking Bonds → Energy Absorbed
</span>
You have to put energy into a molecule to break its chemical bonds. The amount needed is called the<span> bond energy</span><span>. If you think about it, molecules don't spontaneously break.
</span>

5 0
3 years ago
Read 2 more answers
7. The lungs are elastic, sponge-like organs in the ____________________.
Alenkinab [10]

Explanation:

Answer is chest

If Answer is wrong then I'm sorry!

I hope it's helpful!

4 0
3 years ago
Other questions:
  • How are fungi more like an animal? A.They have a cell wall. B.They are heterotrophs that absorb their food. C.They produce seeds
    10·2 answers
  • Animals obtain energy through a series of chemical reactions in with sugar and oxygen gas are reactants this process produces wa
    14·1 answer
  • Aquatic ecosystems consist of two different layers with respect to light. The photic zone is where light penetrates the water, a
    6·1 answer
  • John has a wooden ball with a mass of 28 grams, a golf ball of 46 grams, and a metal ball of 110 grams. If he drops the balls at
    7·1 answer
  • Warning coloration is an example of what kind of behavior?
    10·2 answers
  • ARE THESE CORRECT ??????????????????????PLEASE WHICH ONES ARE RIGHT<br> PART B THINKING
    8·1 answer
  • Which statement correctly matches a cell part with its function?
    13·2 answers
  • A diverse pool of _____________ helps ensure that individuals in a species will pass a variety of traits to their offspring.
    12·1 answer
  • The picture shows an organ system in the human body.
    8·1 answer
  • Why did the black hand assassinate franz ferdinand.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!