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
laila [671]
3 years ago
14

Pollination is the step that starts double fertilization. Each pollen grain contains two nuclei. One is the _______; the other i

s called the ________.
a. tube nucleus; pollen nucleus
b. generative nucleus; pollen nucleus
c. tube nucleus; generative nucleus
d. grain nucleus; tube nucleus
Biology
1 answer:
stiv31 [10]3 years ago
6 0

Explanation:

Hey there!

Your answer is option B.

Generally, in double fertilization one nuclei reacts with egg and form zygote and other reacts with polar nuclei. On this process, fruits and seed are found to be formed.

<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

You might be interested in
Why is variety in crop plants important for food security?
aev [14]

Answer:

Disease and Famine

Explanation:

If there is a disease that affects a type of plant, having other types of crops to rely on could save one from starvation. Also, only planting one crop in an area can change the pH and nitrogen levels in negative ways, so that eventually no plants can grow there. Not to mention the obvious balanced diet needed for a healthy body.

4 0
2 years ago
The cells that make up muscle are specialized to do their job by having many ?
Len [333]
<span>it is Cardiac muscle tissue. Cardiac muscle tissue is an extremely specialized form of muscle tissue that has evolved to pump blood throughout the body. In fact, cardiac muscle is only found in the heart and makes up the bulk of the heart’s mass. The heart beats powerfully and continuously throughout an entire lifetime without any rest, so cardiac muscle has evolved to have incredibly high contractile strength and endurance. And because the heart maintains its own rhythm, cardiac muscle has developed the ability to quickly spread electrochemical signals so that all of the cells in the heart can contract together as a team....</span>
7 0
3 years ago
Witch carbohydrate provides energy for cows but only dietary fiber for humans?
iogann1982 [59]
Cellulose. Our bodies as humans lack enzymes to break the cellulose down.
6 0
3 years ago
Read 2 more answers
To determine whether the mutations in the seven strains leading to the wingless phenotype are in the same gene, your lab sets up
erik [133]

The question is incomplete as it lacks the question and has only information regarding the question. however, the correct question is as follows :

How many different genes are contributing to the wingless phenotypes in these mutant fly strains?

Answer:

The correct answer is - Two genes.

Explanation:

In the given question there are  two mutation groups based on the given seven results:

1st group :

Mutations 1, complement with 2,4, and 7  and also complement each other, thus, are on the same gene.

2nd group:

Mutations 3, 5, and 6 did not complement each other but complemented with mutations 1, 2, 4, and 7. Thus, these three mutations are present together on a different gene.

7 0
3 years ago
A molecule with the chemical formula C6H12O6 is probably a
Oduvanchick [21]
Glycosidic<span> i hope im right 

</span>
7 0
3 years ago
Other questions:
  • The nurse has a prescription to give a first dose of hydrochlorothiazide to an assigned client. the nurse would question the pre
    14·1 answer
  • BIOLOGY DEFINTION Genotype:
    7·2 answers
  • Place the following terms in order from smallest (and least complex) to largest and most
    7·1 answer
  • Why are finches important to Darwin's idea?
    9·1 answer
  • Our ability to learn by witnessing the behavior of others best illustrates
    9·1 answer
  • A codon encodes a specific
    13·1 answer
  • What additional information provided on an msds might be of use to an individual working with chemicals?
    7·1 answer
  • In samples of DNA isolated from two unidentified species of bacteria, adenine makes up 32 and 17%, respectively, of the total ba
    12·1 answer
  • Nitrogen fixation is carried out mainly by...
    6·1 answer
  • What is the correct choice<br><br><br> bio<br> —————————————
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!