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andrey2020 [161]
3 years ago
15

Which kinds of cells are always single-celled? a). eukaryotes b).prokaryotes

Biology
2 answers:
marysya [2.9K]3 years ago
4 0

Answer:

B

Explanation:

prokaryotes

coldgirl [10]3 years ago
3 0

It’s prokaryotes because it’s like bacteria and stuff and eukaryotes are for people, plants and animals

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D. Oxygen and metal


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Which of the following is not part of the carbon cycle?
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What are the most useful bones for determining biological sex, and age of a skeleton? Answer each one individually, they are not
Anna35 [415]

Answer:

The human pelvis Is use for determining sex of skeletal remains. The woman pelvis provide optimal space for birth canal which is shown in the morphology and relationship of it's different part. Skull is also use.

The fourth ribs is use for determining the age of skeletal remains.

Explanation:

The human pelvis is use to determine the biological sex of skeletal remains. The woman pelvis is wider than man's and it provide space for birth canal.

The fourth ribs is use to estimate the age of skeletal remains as the cartilage between the ribs and sternum gradually turn as time goes on. The features of the head can also be use to estimate the age of skeletal remains.

8 0
3 years ago
During the Devonian period of Gondwanaland what were the two organisms that thrived?
gulaghasi [49]

Answer:

about the Trilobites is =Trilobites ( /ˈtraɪləˌbaɪt, ˈtrɪ-, -loʊ-/;[4][5] meaning "three lobes") are a group of extinct marine artiopodan arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period (521 million years ago), and they flourished throughout the lower Paleozoic before slipping into a long decline, when, during the Devonian, all trilobite orders except the Proetida died out. The last extant trilobites finally disappeared in the mass extinction at the end of the Permian about 252 million years ago. Trilobites were among the most successful of all early animals, existing in oceans for almost 300 million years.[6] . and about the algae is =Algae (/ˈældʒi, ˈælɡi/; singular alga /ˈælɡə/) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such as Chlorella and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to 50 metres (160 ft) in length. Most are aquatic and autotrophic and lack many of the distinct cell and tissue types, such as stomata, xylem and phloem, which are found in land plants. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the Charophyta, a division of green algae which includes, for example, Spirogyra and stoneworts.

Explanation:

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2 years ago
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