Answer:
Since life on Earth predates photosynthesis, the exploration of this deep-water environment that lacks any source of light could provide information on what those life forms looked like.
Explanation:
Grass, algae, bacteria, trees. Hope this helps! :)
Answer:
The correct option is D.
Explanation:
Primates refer to an order of animals that include: apes, monkeys, bush babies, etc. The group is very diverse and include up to 350 different species. The smallest primate is mouse lemur while the biggest is wild gorilla. Generally, primate have pairs of prehensile hands and feet, flexible shoulders and hips and well developed brains. They also have hands that are sensitive to touch. Primates have different foraging methods, which they use to acquire their foods.
Answer:
proteins called expansins
Explanation:
The complete question is :
<em>According to the acid-growth hypothesis, auxin causes increased acidity in cell walls, which then activates ____ that disrupt(s) bonds between cellulose microfibrils, allowing cell expansion.</em>
<em>a. a membrane potential </em>
<em>b. an mRNA </em>
<em>c. AUX1 transporters </em>
<em>d. K+ ions </em>
<em>e. proteins called expansins</em>
<em></em>
- The acid growth hypothesis explains the growth of cells and organs in the plants.
- According to this hypothesis, the plant hormone auxin causes induction of the H+ proton extrusion into the apoplast which leads to the activation of expansin which a pH-sensitive protein.
- Expansin is responsible for wall stretching and relaxation and causes hydrolysis of hydrogen bonds and thus helps in cell expansion.
If the mouth is the gateway to the body, then the esophagus is a highway for food and drink to travel along to make it to the stomach. This body part has a very simple function, but can have many disorders.
