Answer:
Its difficult to determine the absolute age so geologists use method to find a rock's relative age. Use the: LAW OF SUPERPOSITION: in horizontal sedimentary rock layers, the oldest layer is at the bottom. Each higher layer is younger than the layers below it.
Explanation:
(Rockaway Middle School, Relative Ages Of Rocks)
Humans have adapted to live in hostile environments by carving their niche out of it. The ability of humans to use various tools and build shelter that shields them from the harsh conditions have helped in their survival. Culturally, humans have been motivated to either degrade their environment to meet their economical needs (farming, housing, industrialisation, etc) or to protect and revamp it as a part of various religious practises (through festivals like the Tree planting festival of Oregon, Qingming festival of China, Van mahotsav of India, etc).
The environment, however has become more hostile in places where such cultural practises are not followed. The humans have resorted to use more energy for conditioning their home, cars and public places in response to the climate change due to degradation of environment.
Answer: B. the pH in the stomach is not suitable for the amylase to work.
Explanation: When carbohydrates reach the stomach no further chemical breakdown occurs because the amylase enzyme does not function in the acidic conditions of the stomach.
As "nurse" cells for neurons in the brain parenchyma, astrocytes are resident glial cells produced from neuroectoderm.
How astrocytes become pathological?
- Recent research has identified astrocytes as major disease-propagating agents in mutant human superoxide dismutase 1 (mSOD1)-mediated amyotrophic lateral sclerosis (ALS).
- However, due to the widespread expression of mSOD1 throughout the CNS of the investigated rodent models, in vivo examination of a specific astrocytic effect in amyotrophic lateral sclerosis has proven challenging.
- In order to understand how mutant astrocytes affect WT MNs and other cell types (microglia and astrocytes) in an in vivo environment, we transplanted SOD1(G93A) glial-restricted precursor cells into the cervical spinal cord of WT rats.
- SOD1(G93A) glial-restricted progenitor cells that were transplanted survived and successfully differentiated into astrocytes.
Learn more about the Astrocytes with the help of the given link:
brainly.com/question/14747164
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Answer:
Explanation:
If warm moist air rises, it will expand and cool. As it cools, the relative humidity will increase and water will condense. . The boundaries between warm, moist air and cold, dry air is where storms frequently occur.
