Answer:
an animal cell
Explanation:
all of these characteristics define an animal cell
Answer: Stages of mitosis: prophase, metaphase, anaphase, telophase.
Explanation: UR welcome
Answer: 3. gravitropism
The movement of plants in response to stimuli is called as tropism. Plants respond to different stimuli like light (phototropism), water present in the soil (hydrotropism), gravity (gravitropism) and touch (thigmotropism).
Gravitropism refers the growth and movement of plant parts with respect to the force of gravity exerted by earth. The roots shows positive gravitational tropism because they are growing towards earth gravity. The shoots or stems shows negative gravitational tropism because they are moving or growing against the gravity.
Answer:
binding of the hormone molecule with its receptor of the cell.
Explanation:
Hormones are chemical messengers secreted or released by endocrine glands to effect a response in another location called target location. Hormones are proteinous molecules and like every other protein, its function is determined by its shape.
Hormones function or effect their changes by binding to the receptor of the target cell. The hormone recognizes and will only bind to its own receptor molecule on its target cell on order to bring about any change. This defines the specificity of the hormone.
Answer:
- <u>North American glacier:</u>
About some 15,000 years ago earth faced a catastrophic event of ice age termed as Last Glacial Maximum(LGM), which covered most of the globe. As the northern region of the American continent, along with that most of the region in the European lands. Which made it very hard for the living beings to survive.
Explanation:
- <u>Effects on Plants-</u>
- The process of producing more food was been halted by the severe conditions globally and there were more unfavorable conditions for the plants, as the level and height of ice over the surface was in the range of Km's. As the trees and plants did not had any water available due to low temperature in the region.
- As most of the Amazon was in scattered form and the rain forests were greatly effected by the ice age, as it covered the surface of the land in the north American region.
- Due, to too much ice and lack of fertile soil available there were less crop and less trees developed, which caused more severe conditions.
