Which characteristic of four different dinosaur fossils makes a dinosaur most similar to the present-day birds?

Flexible wrist

Flapping ability

Flight feathers

Primitive feathers

What role does cellular respiration play in the carbon cycle? A. It removes CO2 from the atmosphere during glycolysis. B. It removes CO2 from the atmosphere during the citric acid cycle. C.

Which of the following is not a tissue type? a. epithelial b. plasma c. nerve d. connective

A diagram of a food web is shown below. At the bottom is grass. From the grass on the right side is a mouse, on the left side is a grasshopper, and in the middle is a rabbit. From the mouse there is a snake and at the top a Hawk.

The jellylike substance that contains dissolved molecular building blocks and in some type of cell organelles is called

Human evolved in colder have more blood flowing into their extremities, and at a hotter temperature, than people living in warmer climates. True / False.

Which of these are included in the immune response? Select 3 correct answers. T-cells lymphocytes B-cells stem cells oil

What two gasses probably dominated Precambrian Earth's atmosphere

Constitution is the supreme law of a country

Is a alligator have a backbone?

How to write a short story about atoms