This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why is a large number of sperm needed to ensure that fertilization occurs? What will be an ideal ... (Read 64 times)

rayancarla1

  • Hero Member
  • *****
  • Posts: 571
on: Jul 21, 2018
Why is a large number of sperm needed to ensure that fertilization occurs?
 
  What will be an ideal response?

Question 2

Many species of plants and animals have now been genetically ___________________ __, which means that scientists have located where each gene is located on the chromosomes.
 
  Fill in the blank(s) with correct word


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Cheesycrackers

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 21, 2018
Answer to Question 1

Many sperm are needed for fertilization for two reasons. First, not all sperm are hardy enough to make the long trip to the oviduct where the egg is. Therefore, a large number of sperm are needed to ensure that some sperm reach the right destination. Second, even though only one sperm penetrates and fertilizes the egg, many sperm are needed to swarm around the egg and secrete an enzyme that loosens the cells surrounding the egg.

Answer to Question 2

mapped


rayancarla1

  • Member
  • Posts: 571
Reply 2 on: Jul 21, 2018
Gracias!

Missbam101

  • Member
  • Posts: 341
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

The Monarch butterfly migrates large distances The Monarch butterfly migrates large distances
Gas exchange occurs at the alveolar capillary membrane. Gas exchange occurs at the alveolar capillary membrane.
The basic structure of a spermatozoon (SPERM). The basic structure of a spermatozoon (SPERM).
This battery shows a large “1000” on the front panel but this is the CA rating and not the ... This battery shows a large “1000” on the front panel but this is the CA rating and not the ...
The tools needed to diagnose a circuit containing a relay include a digital multimeter (DMM), a ... The tools needed to diagnose a circuit containing a relay include a digital multimeter (DMM), a ...
A taproot system consists of a large main root together with its lateral branchings A taproot system consists of a large main root together with its lateral branchings
Video: Dietary Cholesterol & LDL

For a complete list of videos, visit our video library