Sedimentary rocks are most likely to find layers
In secondary succession, the pioneer species are plants that are adapted to exploit disturbances rather than bare rock. They typically include plants such as grasses, birch trees, and fireweed. Organic matter from the pioneer species improves the soil so other trees and plants can move into the area.
Answer:
Xylem transfers water up from the roots to the leaves.
Phloem transfers sugars (glucose) produced in the leaves down to the roots to be stored.
Answer:
<h2>Calculate the distance between
two consecutive rungs.</h2><h2>D= (
-1) inch= 4</h2>
Explanation:
The number of base pairs are 4.5 billion = ,
So, the number of rungs with base pairs are ,
The distance between two rungs is 1 inch.
Calculation '
Calculate the distance between consecutive rungs.
D= ( -1) inch= 4
All cells receive different signals during development to differentiate into cell types in the body. When an cleavage of embryo starts which rise to more cells formation, all of the cells are in the same phase of differentiation and receive same signals from their immediate environment.
<h3>
What is embryo?</h3>
The embryo is the early developmental stage of an animal whereas it is in the egg or within the uterus of the mother in human.
During further course of development, cells start to get different signals and develop memory to those signals in their DNA (mainly through activation of certain genes). In early stages, embryo's all the cells just work towards establishing what specialised cells they need to become based on their positions in the embryo.
As development follows, memory that is established remains in the cells and guides to further differentiation towards specific roles. The signal that created that memory need not be there.
For more information regarding the cell signaling, visit:
brainly.com/question/14407213
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