Auxins a. promote cell elongation and cell division in stems b. stimulates seed growth and fruit development c. promotes cell division d. regulates the opening and closing of stomata

A. promote cell elongation and cell division in stems.

Explanation:

Auxins are the plant hormones, which are typically found in the shoot and root tips.  They promote cell division at the tip of roots and shoots as a result of this help in elongation of the stems and roots. They inhibit the growth of the lateral buds hence maintains apical dominance.

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.