Fill In The Blank Flashcards
To prevent erosion of a hillside, use plants with ________ root systems.
Fibrous
A vascular bundle is made up of ________
Xylem and phloem
The male and female reproductive parts of flowers are called _______ & _________
Stamen & pistil
A seed requires good conditions for a certain amount of time before it will germinate. What are the 2 most important aspects of “good conditions”
Temperature & water
Plant sperm travel to the ovary through the ______ _______
Pollen tube
After fertilization, the ovary becomes the _______ and the ovule becomes the _____
Fruit, seed
The stigma of the pistil is sticky or hairy in order to ____________
Capture pollen
After a seed germinates, the endosperm must last until ________
Leaves can do photosynthesis
Name three parts of a seed ______ ________ __________
Seed coat, embryo, endosperm
Plant growth and development is regulated by __________
Hormones (auxin)
The larger a cell becomes, the ______ it is able to function.
Less efficiently
If a normal cell is injected with cyclin from a dividing cell, it will probably ________
Divide
Together, the G1, S, and G2 phases are called ________
Interphase
Before a normal cell becomes too large to carry out normal activities, it will usually divide to form two _______ cells.
Daughter
A cell that has 5 chromosomes in the G1 phase will have _________ chromatids in the G2 phase.
10
You are given a black rabbit. Black is dominant over brown. To determine if the rabbit is BB or Bb, you would cross it with a ______, this is called a _________
Recessive homozygous rabbit, test cross
The outermost layer of the skin is called the ___________
Epidermis
The sound of your heart beating is caused by _________
Valves closing
The electrical impulse for hearts contraction is started by the ______
Pacemaker
The purpose of our reflexes is _______. Give 2 examples of reflexes _________ & ________
Protection, coughing & sneezing
The Central Nervous System is made up of the __________ , ______
Spinal cord, brain
The shape of the eyeball of a near-sighted person is too __________
Long
Helper T cells activate _____ T cells and ________ cells.
Cytotoxic, B
After an immune response, some B cells and T cells develop into cells that continue to patrol the body on lookout for that same pathogen. These are called _____________
Memory cells
HIV infection weakens the immune system because the virus attacks __________
Helper T cells
