What property of muscle tissue gives it the ability to contract and relax?

A) Precense of neurons

B) Precense of actin and myosin

C) Precense of extra cellular matrix

D) Presence of secretory structures

Lake Cayuga in upstate New York is about 61 km long and 3 km wide, with an average depth of 132 m. Strong winds occasionally push the warm surface water away from the shore, which allows the upwelling of the cooler deep water.

The first type of true cells to form on Earth

A mutation can cause a defect in human hemoglobin which would result in this type of mutation

If the diploid chromosome number of an organism is 2N=12, how many chromosomes will be found in this organism's sperm?

What could a dog living now and a cat living thousands of years ago have in common? O A. They have some of the same matter. O B. They have the exact same DNA. O C. They have the same bone structure. O D. They have the same amount of energy.

About 10% of women experience severe pain at the entrance of the vagina. this is known as

Which of the following correctly describes homeostasis in protists? (A) Paramecium maintain homeostasis by swelling and bursting (B) Vacuoles allow water to enter and exit the paramecium (C) Flagella allow paramecia to move through a substance (D)

List 4 observations that indicate that a chemical reaction may be taking place

Which statement describes the light reaction of photosynthesis? A. Water molecules are combined to make food. B. Air and water create energy for a plant. C. Carbon dioxide is put together with glucose. D. Water molecules are split apart.

4. Where are the two places we find receptor proteins? Inside the target cell, target cell plasma membrane Signaling cell plasma membrane, inside the target cell Signaling cell plasma membrane, ligand Target cell plasma membrane, signaling cell