A group of organs that work together to perform a major function is called a(n)
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What environmental condition contributed to the heat wave experienced in Europe and the thousands of deaths in France? a. polluted water b. sewage c. air pollution d. a and b Please select the best answer from the choices provided A B C D
A mushroom gains its energy by decomposing the tissues of dead organisms. Should mushrooms be classified as autotrophs, heterotrophs, in both groups, or in neither group, and for what reason?
What energy takes place within cells?
Can someone give a explanation on what is Natural Selection? 15 POINTS AWARDED!
Africa and Asia
Europe and Africa
Europe, Africa, and Asia
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The Homo ergaster occupy Africa 1.6 million years ago. Therefore, option A is correct.
Who are Homo ergasters and where did they live?
The oldest early humans known to have had proportions similar to modern humans, with relatively long legs and shorter arms compared to the size of the torso, are the early African Homo erectus fossils (also known as Homo ergaster).
At the onset of the lower Pleistocene and the lowering of the environment, Homo ergaster, sometimes known as the "working man," is an extinct species of hominid (or subspecies, according to some authorities) that existed throughout eastern and southern Africa between 1.9 and 1.4 million years ago.
Thus, the Homo ergaster occupy Africa 1.6 million years ago. Therefore, option A is correct.
Learn more about Homo ergasters, here:
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Fission and fusion are nuclear reactions that produce energy, though they are not the same. Fission is the splitting of a heavy and unstable nucleus into two lighter nuclei. Fusion is the process where two light nuclei combine together releasing vast amounts of energy.
ingest pathogens inside the body
identify antigens and produce antibodies
need a host to reproduce
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Answer:
Identify antigen and produce antibodies.
Explanation:
Lymphocytes:
- are the types of white blood cells and the main part of lymphatic system.
They consist of 2 types of WBCs.
1) T-lymphocytes:
- There are many types of T-lymphocytes but the main type are the cytotoxic t-cells.
- T-cell receptors also identify antigens.
2) B-lymphocytes:
- They produce antibodies.
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Earth's service would be bare. There would no longer be life and all water ways would become dried up due to the intense ultra-violent rays of the sun.
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It would be C. Despositon. I now this because i am the one answering all your questions and trying to help you through this
Deposition, C, AS you are taking away the rocks and positioning them somewhere else. Hope I helped.