DNA, Human Body, Plants, and Tropisms

The organ system pictured removes wastes from the body. The organ that filters the blood is the:

• Bladder

• Heart

• Kidney

• Urethra

What type of tissue moves the blood around your body?

• Connective

• Muscle

• Nervous

• Epithelial

What function do the nervous and endocrine systems have in common?

• Thought analysis

• Response to stimuli

• Control growth

• React at the same rate.

After food is digested, which system carries it to the rest of the body?

• Respiratory System

• Digestive System

• Integumentary System

• Circulatory System

Which two systems work to keep your body safe from pathogens?

• Muscular and Vascular

• Digestive and Excretory

• Circulatory and Immune

• Endocrine and Reproductive

Which of these is a result of coppied DNA strands being identical?

• cytoplasm is in equilibrium

• mitochondria are genetically identical to the chloroplasts

• parent cells use little ATP

• daughter cells are genetically identical to the parent cells

How do two body systems work together to help a prey animal outrun a predator?

• The skeletal system releases additional calcium, and the circulatory system retains more sodium in the blood to provide muscles with ions for contraction.

• The digestive system increases the rate of digestion, and the excretory system ceases to provide tissues with more nutrients.

• The respiratory system increases the breathing rate, and the circulatory system increases blood pressure to provide tissues with more oxygen.

• The endocrine system releases hormones that prepare the immune system to deal with possible injuries.

How does the nervous system interact with the respiratory system?

• enhance the amount of available oxygen in the lungs

• coordinate muscles controlling breathing

• release enzymes to increase the exchange of gases

• exchange gases with the circulatory system

Cells samples are taken from a black dog and a white dog. The nucleus is removed from both cells. The nucleus from the black dog is inserted into the cytoplasm of the white dog cell and allowed to develop into a young dog. What will be the color of the young dog?

• black

• white

• black and white spotted

• grey

When a DNA strand separates before replication, where does it separate?

• Between every phosphate-sugar pair

• between the sugar base pairs

• between the nitrogenous base pairs

• between any two chemical bonds