Which plants drop their leaves on an annual basis?

A) annuals
B) perennials
C) deciduous
D) biennials


C

Biology & Microbiology

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Exchange of waste, nutrients, and oxygen occurs here. _____

A) Human chorionic gonadotropin

B) Zygote

C) Chorion

D) Morula

E) Folic acid

F) Fertilization

G) Blastocyst

H) Parturition

I) Cleavage

J) Ovulation

K) Placenta

L) Implantation

Biology & Microbiology

A motor unit is

A. a motor neuron and all of the muscle fibers to which it connects. B. a sensory neuron and two muscle fibers. C. a motor neuron and a whole muscle. D. a sensory neuron and several sarcomeres. E. a motor neuron and several sarcomeres.

Biology & Microbiology

Which component of a muscle does the calcium ion combine with to allow a contraction to occur?

A) myosin head B) actin C) troponin D) T tubule

Biology & Microbiology

All of the following are monosaccharides except 

A. deoxyribose. B. ribose. C. glycogen. D. glucose. E. fructose.

Biology & Microbiology