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
damaskus [11]
2 years ago
7

Draw a diagram of a roller coaster and write a paragraph relating the ride to

Biology
1 answer:
sdas [7]2 years ago
8 0

Answer:

ratio then sadly 2+2=4-1=3 :)

Explanation:

You might be interested in
You have learned that the fusion of egg and sperm produces a zygote. But how does the sperm reach the egg, and how does the zygo
FrozenT [24]

Answer:

Pollen grain lands on stigma

Explanation:

A) Pollen grain lands on stigma

  • pollen tube grows down the style
  • generative cell divides, forming two sperm
  • two sperm are discharged to them female gametophyte
  • sperm fuse with the egg and two polar nuclei
  • zygote forms and divides into a terminal cell and a basal cell
  • cells of embryo differentiate into three tissue types---- seed dries out and becomes dormant.

B)

  1. During pollination, a pollen grain is transferred from an anther to a stigma. Once the pollen grain lands on a suitable stigma, it germinates and forms a pollen tube, a structure that grows down through the style to the ovary.
  2. Once in the pollen tube, the generative cell from the pollen grain divides by mitosis, forming two sperm. The sperm travel down the pollen tube and are discharged into the female gametophyte. In a process called double fertilization, one sperm fertilizes the egg, forming the zygote; the other sperm fuses with two polar nuclei in the female gametophyte, forming a triploid (3n) nucleus. The zygote develops into the plant embryo, and the triploid nucleus divides and gives rise to the endosperm. Double fertilization prevents the waste of the plant's resources by ensuring that the nutrient-rich endosperm only develops if the egg is fertilized.
  3. After double fertilization, the ovule starts to develop into a seed containing the plant embryo. As the embryo develops, the three tissue systems are established, and the cotyledons (seed leaves) form. The seeds of many species dry out as they mature. These dry seeds lie dormant until suitable germination conditions occur.

3 0
2 years ago
Select all that apply.
UNO [17]
I believe the answer is it can form polymers like carbs, lipids, proteins, and nucleic acids.
7 0
2 years ago
Read 2 more answers
_________ differences are biological and ________ differences are culturally prescribed.
Nutka1998 [239]
Sex differences are biological and gender differences are culturally prescribed. Sex differences refers to the difference in behavior and mental functions between male and female as a result of biological difference while gender differences refers to the differences that occur between male and female as a result of cultural factors.
7 0
3 years ago
Compare and contrast - acquired characteristics and inherited characteristic
jekas [21]
Acquired characteristics are gotten and learned characteristics while inherited characteristics is gotten from the organisms parent
3 0
3 years ago
Match the object with its characteristic
Nuetrik [128]

Moon: Not magnetic

Compass: Permanent Magnet

MRI: Not Magnetic

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following activities would have the greatest impact on the amount of dirt, oil and other contaminants added to the
    7·2 answers
  • A person with a genotype of HbSS has sickle cell disease. A person with a genotype of HbAS allele carries the sickle cell trait.
    15·2 answers
  • Which of the following are basic needs for plants?
    10·2 answers
  • Tell whether the statement is TRUE or FALSE: Direct quotations should constitute no more than ten percent of the total words of
    15·1 answer
  • Choose the items that describe a mixture. Select all that apply.
    13·1 answer
  • Which hemostatic agent is used primarily to control capillary bleeding from within extraction sockets?
    11·1 answer
  • Earthquakes ____.
    10·1 answer
  • why do prevailing winds and positions of islands cause warm ocean currents to pass Christchurch in normal years
    12·1 answer
  • How can someone reduce CO2 from being introduced into the atmosphere?
    9·1 answer
  • Explain why Aracaju is warmer than Lima.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!