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
REY [17]
3 years ago
8

Although monocots and eudicots differ in their arrangement of floral organs, all angiosperms use flowers to facilitate pollinati

on. The goal of pollination is to transfer pollen which is made in the __________ to the __________ of another flower where two sperm are released and travel to fertilize the egg and central cell. *
Biology
1 answer:
8090 [49]3 years ago
6 0

Answer:

Pollen sac of anther, stigma.

Explanation:

Pollen is synthesized inside the pollen sac of an anther.  An anther is a part of male reproductive organ in plants which has many pollen sacs. In order for the pollen grain to fertilize an egg cell and central cell, it must reach the stigma of ovary. Once the pollen which has two sperm nuclei reaches the stigma, it starts growing and develops pollen tube so as to reach the embryo sac. Embryo sac contains 7 cells and 8 nuclei. It has 3 antipodal cells at the chalazal end, 1 central cell with 2 nuclei at center and at micropylar end it has 3 cells out of which two are synergids and 1 is egg cell which is situated in between synergids. One of the sperm nuclei fuses with central cell and another one fuses with egg cell as a result of this fusion, the central cell now has 3 nuclei while egg cell has 2 nuclei. The process of fusion of sperm nuclei with central cell is known as triple fusion and the structure later on develops into endosperm. The fusion of 1 sperm nuclei with egg cell produces zygote which later develops into an embryo. The formation of these two structures is known as double fertilization.

You might be interested in
Transmission of microbes by direct contact includes: a.drinking contaminated water. b.touching a contaminated countertop. c.inha
Romashka [77]

Answer:

B is correct

Explanation:

5 0
3 years ago
Homeostasis involves the maintenance of constant conditions in an organism. What might happen to a protein if homeostasis is dis
meriva
This was answered else where on Brainly, and this is what they said,

"Most proteins in the living organisms are enzymes and they required specific optimum conditions in order to function optimally. Disruption in the homeostasis will leads to deactivation of these proteins. For instance, if the temperature needed for a protein to work optimally has been exceeded, the protein may be denatured and will be unable to perform its needed functions, this may result in several adverse effects in the organism."
7 0
4 years ago
Read 2 more answers
Which of the following is not the name of an air mass?
Nadya [2.5K]
That would be A. tepid moist
Hope I helped!
5 0
3 years ago
The ability of one person to produce over a million different antibody molecules does not require over a million different genes
Tema [17]

Answer:

DNA rearrangment.

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

The human somatic cell is made up of 46 chromosomes which are sub-divided into 22 pairs of autosomes and a pair of sex chromosomes (X and Y). An autosome is one of the numbered chromosome that is typically not a sex chromosome.

On the other hand, sex chromosomes (X and Y) are responsible for determining the gender or sex of living organisms such as humans.

Deoxyribonucleic acid (DNA) is an organic complex-molecular structure found in all living organisms. It comprises of genes and is essentially the foundation block of all living organisms such as humans, animals and plants.

DNA rearrangment can be defined as a process which typically involves re-writing the informations contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase.

Hence, the ability of an individual to produce over a million different antibody molecules doesn't require the use of over a million different genes; rather, this wide range of antibody production is due to deoxyribonucleic acid (DNA) rearrangment.

6 0
3 years ago
In semiconservative dna replication, each new double helix formed will have
Gnesinka [82]
In semiconservative DNA replication, each new double helix that will form will have 1 polynucleotide strand that is from the old DNA molecule and is an Old or Parent strand, and will have a polynucleotide strand from the newly synthesized one, the new DNA strand.
7 0
3 years ago
Other questions:
  • Give an example of a specialized leaf system that is adapted specifically to its environment and explain how it works.
    8·1 answer
  • Acid mine drainage occurs when surface water infiltrates which of the following? A) strip-mined coal beds B) spoil banks where w
    15·1 answer
  • How was genetic engineering able to solve the problem of tomatoes being damaged in transit without sacrificing taste?
    10·1 answer
  • What is the effect of differential reproduction over time?
    5·2 answers
  • What is the ph of 20 ml of ph = 2 solution is diluted to a final volume of 600 mL
    9·1 answer
  • Which is a potential complication of a low pressure in the endotracheal tube cuff? aspiration pneumonia pressure necrosis trache
    10·1 answer
  • Imagine you are investigating the case of a young man who seems not to respond to stressful situations the same way most people
    12·1 answer
  • What information would a biologist most need to know about an area to identity an ecosystem?
    15·2 answers
  • True or false, the more lean muscle mass, the more responsive your body will be to insulin.
    6·1 answer
  • Is human development best characterized as a slow, gradual process, or is it best viewed as one of more abrupt change?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!