« previous next »

Author Question: A sperm fertilizes an ovum by penetrating the ____ a. amniotic membrane b. zona pellucida c. ... (Read 120 times)

melly21297

  • Hero Member
  • *****
  • Posts: 565
on: Aug 6, 2018
A sperm fertilizes an ovum by penetrating the ____
 a. amniotic membrane
  b. zona pellucida
 c. chorionic membrane
  d. fallopian membrane
  e. corpus luteum

Question 2

A(n) ___________________ _ is a substance or an agent in the environment that is injurious to human, animal, or plant life.
 Fill in the blank(s) with correct word


jaaaaaaa

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Aug 6, 2018
Answer to Question 1

b

Answer to Question 2

pollutant


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

melly21297

  • Hero Member
  • *****
  • Posts: 565
Reply #2 on: Aug 6, 2018
Thank you!


jaaaaaaa

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Aug 6, 2018
Always glad to help...


« previous next »
 

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

The flukes of a sperm whale as it dives into the Gulf of Mexico The flukes of a sperm whale as it dives into the Gulf of Mexico
An ovum and spermatozoa. An ovum and spermatozoa.
Membrane potential of a cell freely permeable to sodium only. Membrane potential of a cell freely permeable to sodium only.
Three factors that influence the distribution of Na+ and K+ ions across the neural membrane. Three factors that influence the distribution of Na+ and K+ ions across the neural membrane.
A comparison of sperm production and egg production in humans A comparison of sperm production and egg production in humans
Video: Spermatogenesis Animation

For a complete list of videos, visit our video library