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spin [16.1K]
3 years ago
14

__________ have 46 chromosomes, whereas __________ have 23.

Biology
1 answer:
Alexandra [31]3 years ago
6 0
Primary spermatocytes,  spermatids
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Place the tiles in order.
nataly862011 [7]

Answer:

nebula, protostar, supergiant, supernova, neutron star

3 0
3 years ago
Discuss and provide examples of each of the terrestrial biomes.
Juli2301 [7.4K]

Answer: There are eight types of terrestrial biomes - temperate grasslands, temperate forests, tropical rainforests, subtropical rainforests, savannas, subtropical deserts, chaparral, boreal forests and arctic tundra.

Explanation: A terrestrial biome can be defined as an area of land that have similar communities of plants and animals and also similar climate.

Temperate grasslands: The climate temperature varies from semi-arid to semi-humid. Vegetation consist of grass and/or shrubs. Example includes  Eurasian steppes, north american prairies.

Temperate forests: It is second largest biome , which covers 25% of the world's forest area. Its is known for its seasons and leaf-shedding trees. For example the Valdivian and magellanic temperate forests.

Tropical rainforests: It occurs in the areas of tropical climate. There is no dry season. Average precipitation of the year is at least of 60 mm. For example Daintree rainforests, Congo rainforests.

Subtropical rainforests: It has the the features of temperate forests and tropical forests.

Savannas: It is a mixed woodland grassland ecosystem. Tress are widely spaced so that canopy does not close. For example Serengeti plains of Tanzania.

Subtropical desert: High temperature, warm soils, and very low precipitation are its important features. Plants such as shrubs and succulents can be found there. Mojave desert, Sonoran are the examples.

Chaparral: It is a heathland plant community. Found mainly in US state of California and in northern portion of the Baja California peninsula. For example Santa ynez mountains, near Santa Barbara, California.

Boreal forests: It is also known as Taiga. It has coniferous forests consisting mainly of spruces, larches and pines. It is world's largest forest. For example Jack London Lake in Russia.

Arctic tundra: It is a vast, cold, and treeless area of low, swampy plains in the north around Arctic ocean. There are three regions and associated type of tundra that are Arctic, Antarctic and Alpine.

5 0
3 years ago
What is a global hectare (gha)?
kodGreya [7K]
Accounting unit of ecological protection
8 0
3 years ago
Organic molecules derived from vitamins that act as helpers are called
AysviL [449]
Coenzymes

Coenzymes are small organic molecules that, themselves, do not function as catalysts (i.e. enzymes) but aid the latter in carrying out their functions. Enzymes are biological catalysts, which means that they allow reactions to occur at lower activation energies. In a way, enzymes help to "speed up" chemical reactions. 

Coenzymes are mostly derived from vitamins. Examples include TPP from Vitamin B1 (thiamine), FAD from Vitamin B2 (Riboflavin), and NAD+ from Niacin. 
3 0
4 years ago
Which of the following has least mass? 1)3.01 × 10²³ atoms of C 2)8 gram of hydrogen 3)2.5 mole of Na 4)1 mole of S
timama [110]

Answer:

8 gram of Hydrogen

You have to work out the mass of each answers option so for

1. from atoms to mass you have to work with avagadros number (6.23x10^23) and then with the molar mass of the Carbon.

2. Already in grams so do not need to do anything

3. From mole to mass, just take the moles and multiply it by the molar mass

4. Do the same as 3 as they are both in moles

4 0
4 years ago
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