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
guajiro [1.7K]
3 years ago
15

In the alteration of generations life cycle the spore undergoes mitosis to become a A) gametophyte B) sproohyte C) spore D) game

te
Biology
1 answer:
Eva8 [605]3 years ago
3 0
<span>A mature sporophyte produces spores by meiosis, a process which reduces the number of chromosomes to half, from 2n to n. Because meiosis is a key step in the alternation of generations, it is likely that meiosis has a fundamental adaptive function. The nature of this function is still unresolved (see Meiosis), but the two main ideas are that meiosis is adaptive because it facilitates repair of DNA damages and/or that it generates genetic variation. The haploid spores germinate and grow into a haploid gametophyte. At maturity, the gametophyte produces gametes by mitosis, which does not alter the number of chromosomes. Two gametes (originating from different organisms of the same species or from the same organism) fuse to produce a zygote, which develops into a diploid sporophyte.</span>
You might be interested in
Which factor most likely caused animals and plants in India to differ greatly from species in nearby southeast Asia?
timama [110]

Answer:

The correct answer is option d. "India was a separate continent until 45 million years ago".

Explanation:

135 million years ago, Pangea was a single continent that became separated into Laurasia in the north and Gondwana in the south. India was part of Gondwana along with Australia, South America, Antarctica and Africa. However, as a result of tectonic activity India got separated from Gondwana. This period of time at which India was a separated continent is the factor that most likely explains why animals and plants in India differ greatly from species in nearby southeast Asia. At being a separated continent, India's plants and animals go through an independent evolutionary process which made them very different an unique from nearby species.

6 0
3 years ago
Reptiles and birds excrete waste as an insoluble white solid that is called uric acid. How does this help them to maintain inter
alexira [117]
<span>Reptiles and birds excrete waste as an insoluble white solid that is called uric acid. This means that these wastes are made of very little amount of water. This helps them to maintain internal homeostasis in hot climates since the presence of water allows them to cool easily.</span>
5 0
3 years ago
Read 2 more answers
Bile ________. bile ________. is a digestive enzyme that hydrolyzes lipids is a digestive enzyme that hydrolyzes lipids, is an i
Katarina [22]

Answer:

Emulsifies fat, keeping tiny fat droplets suspended in the aqueous contents of the gut

Explanation:

  • Bile emulsifies fat, keeping tiny fat droplets suspended in the aqueous contents of the gut.
  • Bile juice is a fluid that is secreted from the liver and stored in the gall bladder. The juice helps in the emulsification of fats or break down of fats into simple fat droplets.
  • The simple fat droplets from emulsification can then be absorbed in the small intestines through the lacteal.
6 0
3 years ago
How is co2 removed naturally from the atmosphere?
Lelu [443]
Through processes like photosynthesis.
5 0
4 years ago
tWhich organs are part of the excretory system? a)stomach, esophagus b)kidney, bladder c)large intestine, small intestine d)gizz
Ronch [10]

Answer/Explanation:

b) kidney and bladder

Kidneys are the main organ in the excretory system and the bladder stores the urine in the body. These are two of the organs that make up the excretory system.  

4 0
3 years ago
Other questions:
  • What accounts for the difference in the functions and properties of molecules like starches, glycogen, cellulose, and chitin?
    7·1 answer
  • A variation of a language found in a geographically isolated area is a(n) _____.
    6·1 answer
  • Recently, genes have been indentified in angiosperms that are important in preventing pollen from germinating or growing into th
    14·1 answer
  • Draw the structure of ethanamine.
    15·1 answer
  • How can the extinction of bird species create a ripple effect through the rest of the ecosystem?
    6·1 answer
  • Which of the following is NOT true about the absorption of fats?
    7·1 answer
  • How many degrees does each small line represent on the thermometer on page 1?
    12·1 answer
  • Explain how a carbon atom in a CO2 molecule in the air can become part of a cellulose molecule in a plant
    8·1 answer
  • The photo shows metal pipes that are meant to carry water. The pipes are
    6·2 answers
  • Complete the following sentence:_____ or _______ meaning some can live without _____
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!