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BIOL 310 Lab With Correct Answers (2025)!! $15.99
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Exam (elaborations)

BIOL 310 Lab With Correct Answers (2025)!!

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  • Course
  • BIOL 310
  • Institution
  • BIOL 310

BIOL 310 Study Material – Comprehensive & High-Quality Notes! Ace your BIOL 310 course with this well-organized and detailed study material! Perfect for students looking to save time, boost their grades, and understand key concepts quickly. What’s Included? Detailed Lecture Notes – C...

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  • February 12, 2025
  • 22
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BIOL 310
  • BIOL 310
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Q/As




BIOL 310: Lab With Correct Answers
(2025)!!



Median/midsagittal plane

splits the organism into 2
halves: right and left




Frontal/coronal plane

vertical plane that passes
thru the body longitudinally




Transverse/horizontal plane

divides body into upper
and lower section




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, Q/As




embryology + stages

study of embryos and their development

1. pre-embryonic
2. embryonic
3. fetal

define conception

average days

details on what happens during each trimester + length

fertilization

266 days of pregnancy

1st trimester: 12 weeks, fertilization to 1st month of fetal life, phenomenal
change of growing organism

2nd trimester (13-24weeks): rogans complete development

3rd trimester (25-birth): fetus able to live outside mother's body

define:

oocyte
zygote
ovulation
cleavage
blastomeres
blastocyst
blastocoel

https://www.stuvia.com/en-us/user/SCHOOLFLIX

, Q/As
oocyte: developing egg to become ovum

zygote: single diploid cell formed by the union of egg and sperm

ovulation: releasing egg from ovary (where eggs are)

cleavage: mitotic division

blastomeres: cleavage turns single cell zygote into collection of smaller
identical cells (blastomeres)

morula: forms from blastomeres and after 72 hrs after ovulation, spherical
shape, consists of 16 or more cells

blastocyst: morula divides into 100 cells, becomes hallow sphere

blastocoel: internal cavity in blastocyst

pre-embryonic stage

-overall: zygote → blastocyst
-in 1st 3 days after fertilization: single cell zygote (cleavage) → blastomeres
-blastomeres → morula
-morula lives free in uterine cavity for 4-5 days → divides into 100 cells →
becomes hollow sphere called blastocyst

ovary → maturing follicle → ovulation + creating polar bodies (thru meiosis
to create haploid) → fertilization → blastomeres → morula → blastocyst




primary difference between morula and blastocyst

for blastocyst: cells are beginning to look different from each other
(differentiate)

define trophoblast (3)


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