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
Bingel [31]
3 years ago
13

A farmer found that caterpillars were eating his corn. He sprayed his field with pesticide to kill them. For the first three yea

rs this treatment worked well, leaving only a few caterpillars in the field. Based on what is known about natural selection, what can he expect in succeeding years if he continues to use the same pesticide? (2 points)
The caterpillar population will develop resistance to the pesticide if any of them survived it because they were genetically different from the rest.
The caterpillar population will remain at very low levels every year the pesticide is applied since it keeps them from reproducing well.
The caterpillar population will continue to be successfully controlled by the pesticide indefinitely since it has worked for three years.
The caterpillar population will eventually be exterminated completely and it will likely become extinct. need help
Biology
1 answer:
Eduardwww [97]3 years ago
4 0

The caterpillar population will develop resistance to the pesticide if any of them survived it because they were genetically different from the rest.

You might be interested in
A group of the same species, living together and breeding is known as a
Simora [160]
In some cases it would be called a schools,communities and or flocks.hope this helps please give a 5 star and brainlest answer.
8 0
3 years ago
Read 2 more answers
The boundary between the false pelvis and the true pelvis is an oblique plane, the circumference of which is called the
Fynjy0 [20]
It is called the lines terminal is or pelvic brim
3 0
2 years ago
A normative species of fish is introduced into a lake which would most likely prevent this fish from becoming an invasive specie
zepelin [54]
A predator of that fish. Or if the fish can only lay eggs in an environment with current. Also temperature can effect if it will survive or not.
4 0
2 years ago
Where is air almost completely humidified? in the lungs in the trachea in the alveoli in the nose?
motikmotik
None of the provided choices provide a completely correct answer. In fact, 75% of humidification takes place in the nose and mouth, with the rest taking place in the trachea. When you breath in, mucous membranes inside the nose and mouth release moisture to air. It is estimated that the average adult evaporates 200 to 300 ml of water per day during this process. The process is very efficient: while  breathing in through nose or mouth, the mucous membranes are cooled down.  During breathing out, this cooling effect causes condensation of some of the moisture in the air coming from the lungs, thereby moisturizing the mucous membranes
3 0
3 years ago
All of the following are true of spermatogenesis EXCEPT: Question 18 options: DNA replicates once, but cells divide twice. The p
jolli1 [7]

Answer:

  • One spermatogonium produces 4 spermatids FALSE. One primary spermatocyte produces 4 spermatids.

Explanation:

Germ cells are diploid reproductive cells in charge of gamete production. Germ cells divide by mitosis and meiosis. Through mitosis, they originate more sexual cells, but through meiosis, they produce gametes -sperm and egg cells-. This process is known as gametogenesis.

Gametes´destiny is to merge during fecundation, and a new diploid cell called zygote emerges through fertilization. The zygote is a complete cell and suffers successive mitosis to form the new organism.

Spermatogenesis is the process of production and maturation of sperm cells. Spermatogonia are the masculine diploid germ cells, carrying 46 chromosomes. These germ cells suffer mitosis to reproduce. Some of them stay as spermatogonia, and some others become primary spermatocytes, which are in charge of gamete production. Primary spermatocytes are also diploid cells, meaning that they still carry 46 chromosomes.

Each primary spermatocyte replicates its genetic material and then goes through meiosis I to produce two daughter haploid cells called secondary spermatocytes, each of them carrying 23 chromosomes. Each secondary spermatocyte will produce two other haploid daughter cells by meiosis II.

The total result from the two cellular divisions of each primary spermatocyte is four haploid daughter cells called spermatids.

During spermiogenesis, spermatids mature into spermatozoa or sperm cells. Each sperm cell characterizes by being composed of a head, midpiece, and tail.

  • DNA replicates once, but cells divide twice TRUE
  • The products are spermatozoa that each have a head, midpiece, and tail TRUE  
  • Spermatids containing 23 chromosomes (1n) are produced TRUE
  • One spermatogonium produces 4 spermatids FALSE. One primary spermatocyte produces 4 spermatids.
  • Genetically diverse spermatids are created TRUE
4 0
2 years ago
Other questions:
  • The red-cockaded woodpecker is found in the pine forests of Georgia. It eats insects found in the barks of the pine trees and ne
    11·2 answers
  • What causes the ocean waves that surfers use for their sport? A.Sunlight heating water B.Salinity differences in water C.Wind bl
    15·2 answers
  • Which group of organic compounds includes enmeshes?
    10·1 answer
  • Y'all help me please.
    9·2 answers
  • Which organelle can be compared to a security guard who decides whom may enter s building snd whom may not
    9·1 answer
  • Temperate continental climate
    7·1 answer
  • A un hospital llega un hombre aproximadamente 25 años que desde hace unos días viene sintiendo unas picadas uno de los extremos
    10·1 answer
  • Why do some cells have different structure or more of one structure then other cells do
    6·1 answer
  • Which statement correctly demonstrates the relationship between cellular respiration and photosynthesis?
    8·1 answer
  • Which statement about DNA is true
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!