Question

question 3 (1 point)
what type of cleavage pattern is characteristic of deuterostomes during embryonic development?
radial and indeterminate
spiral and determinate
spiral and indeterminate
radial and determinate
question 4 (1 point)
indicate whether the following sentence is true (t) or false (f).
the hyperosmotic side has lower solute concentration and lower water concentration than the hypoosmotic side.
true
false

Explanation:

Question 3

Deuterostomes (e.g., echinoderms, chordates) have radial cleavage (cells divide parallel/perpendicular to the embryo's polar axis) and indeterminate cleavage (cells can develop into a complete embryo if separated, as seen in stem - cell - like potential here). Protostomes often have spiral and determinate cleavage. So the correct option is the one with radial and indeterminate.

Hyperosmotic means a higher solute concentration (and thus lower water concentration) compared to the hypoosmotic side (lower solute, higher water). The statement says the hyperosmotic side has lower solute concentration, which is wrong. So the answer is False.

Answer:

A. Radial and indeterminate

Question 4