Answer:
<em>B. </em><u><em>Habitat</em></u>
Explanation:
Ecosystems are geographical regions made up of biotic factors (plants, animals, bacteria) and non-living or abiotic factors (rocks, rainfall, temperature).
They live in groups called communities within their ecosystem and occupy a specific place in their community, a niche - here, they contribute to nutrient cycling and energy flow. They may often wander in search of food, or shelter in a region known as a habitat.
<u>Answer</u>: A - Bryophytes
B - Gymnosperms
C - Angiosperms
D - Dicots
Land plants are divided into non-vascular and vascular plants, according to the presence or absence of a conducting tissue. The diagram in the picture illustrates the division of vascular plants.
The non-vascular plants are divided in turn into Bryophytes and Pterophytes. The Bryophytes are divided into three groups: the liverworts, hornworts and mosses. The vascular plants are also divided into two groups gymnosperms (unprotected seeds) and angiosperms (seeds enclosed within a carpel).
Angiosperms are further divided into monocots and dicots depending on the number of the cotyledons. These are a significant part of the embryo contained within a seed and the first part to emerge from the soils. Monocots (mono - one/single) as is illustrated by their name have only one whereas dicots two (di - two).
Answer:
During interphase, replication of the genome DNA occurs during S phase of the cell cycle.
Explanation:
S phase is also called synthesis phase. S phase occurs between G1 and G2 phase of interphase. S phase is the second stage of interphase which occurs before mitosis process of cell division. The cell spends most of the time in interphase where replication of DNA occurs. In this replication, a copy of DNA molecule is produced which is distributed in the daughter cells after mitosis cell division occurs.
The density of the lithosphere varies depending on temperature, depth and age. At about 50 kilometers (30 miles) below the Earth's surface, density measurements reach 200,000 pounds per square inch (13,790 bars). Due to the pressure from the above crust and mantle, lithospheric density generally increases as both age of the surrounding rock and depth increas
the answer is c. It shares electrons to complete its octet