b
Explain why viruses are not considered to be living.
viruses are not considered to be living because they lack cells and cannot reproduce on their own. although viruses contain DNA, they do not have a cell membrane, cytoplasm, ribosomes, or other organelles. they also need to use the cells of living organisms in order to replicate.
<h3><u>Blight</u></h3>
➡<u>Gray mold is caused by the fungus Botrytis cinerea.</u>
➡<u>It</u><u> </u><u>is</u><u> </u><u>a</u><u> </u><u>fungal</u><u> </u><u>disease</u><u>.</u>
➡<u>It</u><u> </u><u>causes</u><u> </u><u>flowers</u><u> </u><u>to</u><u> </u><u>blight</u><u>.</u>
Actually it is the females the mostly build the nests the males will help build it sometimes both males and females will build it but typically it is females and that goes for all birds.
"Females typically build nests, but sometimes both parents or just the male"
C. In anaerobic exercise muscles do not use oxygen. In aerobic exercise muscle use oxygen.
Answer: The image to be studied is missing from the question,so I attached it to my answer,please click on the attachment provided to view the image being studied.
The correct answer to the question is option A.
NEBULA
The object shown in the image is known as a nebula.
Explanation: A nebula is found in interstellar space,it has a form of a giant cloud of dust. When some stars goes into dying process,they explode throwing out gas and dust which forms a nebula.(a supernova remnants nebulae).
Some nebulae(singular form of nebula) are also found where new stars are being formed.
Nebula are the basic building blocks of the universe,they are made up 90% hydrogen,10% helium and other heavier elements in trace amounts from which stars and other solar systems are made.
Nebula exist in 5 distinct types namely;
Emission nebulae, Reflection nebulae,Dark nebulae, Planetary Nebulae and supernova remnants Nebulae.