fish and tetrapods are both vertebrates that have a backbone with a spinal cord. fish lived before tetrapods because their fossils are in rocks over 500 million years old.

Explanation:

fish and tetrapods are both vertebrates that have a backbone with a spinal cord

8 0

1 year ago

Which of the letters above best models a molecule of water moving into the membrane via an aquaporin?

nika2105 [10]

Answer:

Letter B.

Explanation:

Aquaporins, also known as "water channels," are the main transport of water through the membranes of plant, animal, and bacterial cells. These channels allow the water to travel into and within cells and, at the same time, exclude the passage of ions and solutes.

What makes letter B the correct answer, is the form of transport and shape of the channel that allow water according to the osmotic gradient. In this model, letter A shows simple diffusion, while C and D seem to illustrate gated channels.

3 0

2 years ago

Antibodies are made when animals detect a foreign antigen. All mammals carry albumin in their blood. How was a rabbit antibody a

belka [17]

<h2>Rabbit Blood</h2>

Explanation:

<em>Blood is the primary transporter</em> mode for the transport of components essential for digestion all through the body
Red platelets are one of the most significant components of blood
Red platelets (rbcs) transport oxygen to the body's tissues and trade it for carbon dioxide which is carried to the lungs for elimination
Red platelets are shaped in the bone marrow of Stem cells in the red bone marrow called hemocytoblasts offer ascent to the entirety of the formed components in blood

3 0

2 years ago