In plants, the secondary metabolites are primarily responsible for overcoming ai
ID: 99355 • Letter: I
Question
In plants, the secondary metabolites are primarily responsible for
overcoming air pollutants.
protection against ultraviolet radiation.
defense.
nutrition.
E.food gathering
It is generally thought that four critical innovations arose during the evolution of our ape-like ancestors into humans. All of the following are innovations except
toolmaking.
development of the opposable thumb.
use of brain power for abstract thought.
bipedalism.
E. expansion of the human brain.
Mammals have two traits that set them apart from all other animals. These are
four-chambered heart and milk production.
amniotic eggs and milk production.
body hair or fur, and milk production.
four-chambered heart and body hair or fur.
E. body hair or fur, and being homeothermic.
Plants have adapted to dry land by evolving all of the following except
structures to protect reproductive cells and embryos.
secreting a waxy coating to prevent water loss.
association with mycorrhizae to improve mineral uptake.
tissues to conduct water through the plant.
forms of chlorophyll more efficient at capturing light.
A.overcoming air pollutants.
B.protection against ultraviolet radiation.
C.defense.
D.nutrition.
E.E.food gathering
It is generally thought that four critical innovations arose during the evolution of our ape-like ancestors into humans. All of the following are innovations except
A.toolmaking.
B.development of the opposable thumb.
C.use of brain power for abstract thought.
D.bipedalism.
E. expansion of the human brain.
Mammals have two traits that set them apart from all other animals. These are
A.four-chambered heart and milk production.
B.amniotic eggs and milk production.
C.body hair or fur, and milk production.
D.four-chambered heart and body hair or fur.
E. body hair or fur, and being homeothermic.
Plants have adapted to dry land by evolving all of the following except
A.structures to protect reproductive cells and embryos.
B.secreting a waxy coating to prevent water loss.
C.association with mycorrhizae to improve mineral uptake.
D.tissues to conduct water through the plant.
E.forms of chlorophyll more efficient at capturing light.
Explanation / Answer
1 ans-C-Defense
secondery metabolites like Alkaloids,medicinal Alkaloids,Terpenoids act as potent nerve poisons, enzyme inhibitors, or membrane transport inhibitors.
2 ans-development of the opposable thumb.
usually associated with Homo habilis
3 ans-body hair or fur, and milk production.
Mammals feed their children by mammry glands, found body hair or fur because they are earm blooded and to maintain the body temperature they need fur.
4 ans-forms of chlorophyll more efficient at capturing light