Without the protein myosin, what structures would also be missing in a muscle?
A) ribosomes
B) mitochondria
C) thin filaments
D) thick filaments
D
You might also like to view...
When a blood vessel gets damaged, contractions of smooth muscle referred to as ________ help constrict the vessel to reduce blood flow
A) vascular spasms B) hemostasis C) homeostasis D) formed elements E) endocytosis
A student encounters a pondweed which appears to be a charophyte (stonewort). Which of the following features would help the student determine whether the sample comes from a charophyte or from some other type of green alga?
1. molecular structure of enzymes inside the chloroplasts 2. structure of sperm cells 3. presence of phragmoplasts 4. rings of cellulose-synthesizing complexes A) 1 and 3 B) 1 and 4 C) 2 and 3 D) 2, 3, and 4
A unique feature of ________ is that they are tissue-specific
Fill in the blank with correct word.
Both low birth and death rates characterize the demographic transition. Which factors will lower birth and death rates for twenty-first century Homo sapiens?
What will be an ideal response?