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
Ede4ka [16]
3 years ago
12

Plant spores are usually

Biology
1 answer:
max2010maxim [7]3 years ago
4 0

Answer:

The correct answer will be option- A

Explanation:

Spores are the reproductive unit produced as a result of sexual reproduction and asexual reproduction in both lower and higher plants.

The plant groups like Fungi, Algae, Bryophytes, Pteridophytes and Gymnosperms produce these spores which provides adaptation as they can be dispersed for the long-distance as well as germinate and form an organism.

The spores are formed by the process of sporogenesis which forms four spores from a diploid structure their meiosis which reduces the genetic material to half and maintain the haploid ploidy number.

Thus, option-A is the correct answer.

You might be interested in
Which best describes the interaction between dna and rna during protein synthesis? a rna carries the code to the nucleus where d
Step2247 [10]
C) RNA<span> carries the code from DNA in the nucleus to the ribosome for protein synthesis.

The ribosomes are in the cytosol/cytoplasm, but DNA is in the nucleus. DNA is too large to travel out of the nucleus, so it needs the help of mRNA to transfer the genetic code to the ribosome, which translates the code into a protein. That means A, B, and D cannot be true. </span>
6 0
3 years ago
Between Mars and Jupiter is a region
labwork [276]

Answer:

asteroids belt

Explanation:

The asteroid belt is a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars

4 0
3 years ago
Natural selection could not occur without _______ and act on a(n) _______
kherson [118]
Natural selection could not occur without environment, and a act on animal.
4 0
3 years ago
If polar is positive and non-polar is negative then why can’t a polar molecule pass through the non-polar phospholipid membrane
Ierofanga [76]

Answer:

Because of the chemical and structural nature of the phospholipid lipid by layer the lipid soluble molecule can just pass the lipid membrane and some small molecules can also pass freely.

Explanation:

as we know that the homeostasis is an important process for a  living cell to maintain it self so for the the exchange of materials between the external and internal environment is must so for that it exchange material with the outside environment of the cell.as the cell membrane is semipermeable(mean allow some molecule to pass(lipid soluble) and not others(lipid non soluble) to pass through the membrane.the cell membrane is selectively permeable due to its nature and chemical composition the chemical composition is lipid and  phosphate and glycerol(head) with fatty acid that may b saturated or unsaturated(tail).so finally all those molecule which are polar can not pass through the membrane and  non polar can pass the membrane.The size of the molecule is also a factor on which the permeability depends.

3 0
3 years ago
Diffusion is a passive process that accounts for the movement of respiratory gases across the capillary membranes of alveoli.
strojnjashka [21]

Answer:

True

Explanation:

Diffusion is a passive process (no energy required) in which the substance such as liquid and gases moves from an area of high concentration to an area of low concentration.

During respiration, carbon dioxide diffuses from the blood into the alveoli and oxygen diffuses from alveoli to blood across the respiratory membrane. The partial pressure of oxygen is low in the blood of the pulmonary capillaries and high in the alveoli. so diffusion allow movement of oxygen across the respiratory membrane from the alveoli into the blood.

Hence, the given statement is true.

4 0
3 years ago
Other questions:
  • How many American states have waters that are so polluted the seafood from them is not safe to eat?
    8·2 answers
  • Many of the laboratory experiments that test the hypothesis that selection can produce evolutionary change have been performed w
    5·1 answer
  • Which is part of photosynthesis?
    7·1 answer
  • These structures of the cell are responsible for intracellular translocation of cargo. ___________
    13·2 answers
  • 3. It is a situation where a communication takes place.​
    6·2 answers
  • 2. Co dzieje się z mięśniami międzyżebrowymi i przeponą w czasie:
    14·1 answer
  • 2 cm
    14·1 answer
  • Major organs form and cells continue to divide in the __________ stage.
    11·2 answers
  • How do neutral mutations to DNA cause inheritable genetic variations?
    14·1 answer
  • How does plant with particulate matter affect the economy
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!