b. trees
c. shrubs
d. algae
Succession is _______.
a. harmful to ecosystems
b. a natural recovery process
c. unnecessary for ecosystem recovery
d. a one-time event
Answer: 1. d. algae
Explanation:
A primitive community is the ecological community which is occupied with the low diversity of biological species. The species located in this community includes simple organisms. The algae is an example of species that is expected to be found in a primitive community.
Answer:2 b. a natural recovery process
Explanation:
An ecological succession is a change in the biotic community of an ecosystem with respect to changes occurring in the non-living environment in due coarse of time, until the ecosystem attains stability. Succession is a natural recovery because even if any kind of natural or human induced destruction occurs in a region which is capable of reducing the population of living beings and destroy the physical environment. Some precursors of life will renew the growth and abundance of living species and the changes occurring in the physical environment will support the growth.
a. True
b. False
b. False
Answer:
True
Explanation:
B) The number of chromosomes is different in different organisms.
C) There are more genes in a cell than there are chromosomes.
D) The karyotypes for a male human and a female human look different.
Answer:
A) A single gene can only influence a single trait
Explanation:
One gene has the possibility of influencing many traits and in the same manner, multiple genes can affect a single trait.
in the Rocky Mountains
under the Missouri River
inside the Grand Canyon
The thickest part of the earth’s crust is under mountains. Whenever there is a volcanic eruption, more material is poured out on the earth’s surface from under the crust, so as the years pass the earth’s crust is increasing slowly.
The area of Rocky Mountains is where the earth’s crust would be expected to be thickest.
Answer: In the Rocky Mountains.
I hope this helps, Regards.