Question

Life science 2 thx a lot!

5. These pathologies increase with age

A. Diabetes

B. Cancer

C. High blood pressure

D. all of the above

6. Thinner skin, along with fewer epidermal cells being produced, causes

A. loss of fluid through the skin during aging

B. skin cancer

C. decreased healing time as aging occurs

7. Strategies that allow animals to cope with heat stress

A. include animal housing management

B. nutritional interventions

C. genetic and breeding changes

D. all of the above

8. Identical twins have identical copies of their brains.

true

false

9. Warming Mars could be accomplished by

A. using PFCs

B. positioning mirrors to reflect sunlight onto the planet

C. transferring nitrogen from Venus or Titan

D. all of the above

10. Planets outside of our solar system that can support life are called endoplanets.

true

false

11. Placing a magnetic dipole field between Mars and the sun may help restore Mars'

A. atmosphere

B. water availability

C. temperature regulation

12. Sporophytes

A. consume spores

B. generate spores

C. generate pollen and eggs

D. comsume pollen and eggs

13. During aging, there is a slight reduction in heart rate because

A. the heart increases in size

B. fatty & fibrous tissues accumulate around the SA node

C. the heart valve stiffen

Answer 1

ANS. 5. Aging associated diseases arises with senescence and includes cardiovascular illness, type 2 diabetes, hypertension, cataract, cancer, arthritis, etc. All the options of diseases are therefore increases with age. hence option D is correct.

ANS. 6. Thinner skin, along with fewer epidermal cells being produced, causes loss of fluid through the skin during aging. loss of fluid becomes easy in thin skin (older people) as compared to thick skin (younger people).

Skin cancer cannot be the right answer because it results into dark pigmentation.

ANS. 7. Strategies that allow animals to cope with heat stress includes animal housing management, nutritional interventions and genetic and breeding changes. Option D is correct answer. A. include animal housing management

ANS. 8. Identical twins have identical copies of their brains - The statement is false because their sense of perception to environment, social interaction is different.