Which choice describes the thyroid? It secretes adrenaline to help the body respond to fear.

It secretes thyroxine, which is involved in growth.

It is often called the "master gland."

It secretes hormones that regulate water concentration levels.

When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.

Draw a simple labelled diagram if a collenchyma tissue

What is gene flow? apexa: selection for average traits b: when a population splits in twoc: a mutation becoming more commond: genes moving between two populations