Question

PLEASE HELP ME WITH THESES 4 SCIENCE QUESTIONS

Question 1
Two organisms are said to be different species if they:
can interbreed, but will produce sterile offspring.
cannot interbreed.
have markedly different physical characteristics.
Both A and B are true
Question 5
How far back in the taxonomic categories do you have to go to find a group that has living relatives of humans?
Genus (Homo)
Family (Hominid)
Order (primates)
Class (mammals)
Question 9
Which kingdom contains organisms that do not have nuclei or complex cell structures?
Plantae
Animalia
Protista
Eubacteria
Question 10
Where are there more phylums found?
land
ocean
equal number found in both
forests

Answer 1

1. Both A and B are true
2. Order (primates)
3. Protista
These are considered unicellular organisms.
These unicellular organisms are responsible for breaking down materials in the earth. They assist with the decomposition of the dead and decaying matter that can be found on the earth's surface. This break down also makes up natural fertiliser for the plants which then grow up fertilised. These unicellular organisms are also an essential part of the nitrogen cycle. They change the nitrogen from the environment and turn them into absorbable nitrates for the plants, which is an essential part of the plants' food. 4. equal number found in both