Answer:
Algae and fungi are biotic: temperature and rainfall are abiotic
Explanation:
Abiotic factors include non-living environmental factors like wind, temperature and light, and chemical elements. These affect the biotic, living factors and shape their survival. For example high temperatures hinder the survival of organisms, and a lack of rainfall creates drought conditions where biotic factors die off due to food scarcity.
Biotic factors comprise the most important environmental components; bacteria, plants, animals, and fungi. The interaction between these living organisms can be classed into three groups; producers, like algae, plants, trees and grasses; consumers, which are plants that eat other animals or producers; and decomposers, that break down dead organic matter into soil.
Answer:
In transcription, the mRNA strand is formed by complementary base pairing of the template DNA strand. However we should note that the nitrogenous bases in mRNA are Adenine, Guanine, Cytosine and Uracil, while those in DNA are Adenine, Guanine, Cytosine and Thymine.
So the mRNA strand would be formed by matching the A in DNA with U in mRNA, T in DNA with A in mRNA, C in DNA with G in mRNA and G in DNA with C in mRNA.
I hope that helps!
Explanation:
Answer:
b Freezing temperatures change the quantity of ocean water, and rock made of larger grains forms the top layer.
Explanation:
Review the diagram, which shows a sedimentary sequence.
What could cause a sea-level change that would result in this sedimentary sequence?
a Melting ice caps change the quantity of ocean water, and rock made of calcium carbonate forms the top layer.
b Freezing temperatures change the quantity of ocean water, and rock made of larger grains forms the top layer.
c Rising temperatures change the density of ocean water, and rock formed in still waters appears in the upper layer.
d Tectonic activity changes the shape of the ocean basin, and rock formed in the deep sea appears in the upper layer.
Answer:
The correct answer will be- Option-4
Explanation:
Carl Woese is well known for dividing the five-kingdom system into three domains: Archaebacteria (ancient bacteria), Eubacteria and the Eukaryotes on the basis of the studies of the ribosomal RNA.
Since the three-domain system does not include the cyanobacteria group which includes the photosynthetic bacteria therefore, the Cyanobacteria is the correct answer.
Thus, Option-4 is the correct answer.
