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Simora [160]
3 years ago
13

Compare and contrast the body of a crayfish with that of an insect. please help

Biology
1 answer:
Papessa [141]3 years ago
3 0

Insects have a distinct set of characteristics which all must have if they are insects. They must have three pairs of legs (even though sometimes they may appear different as larvae, such as caterpillars), a set of mouth parts, and a head, thorax, and abdomen.


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An Arizona desert measures 50 square kilometers. A botanist recorded that there are 150 Saguaro cactus plants within the desert
Nady [450]

Population Density

The population density is 3 per square kilometers

Explanation:

Population density is defined as  population divided by total land area or water volume, as appropriate. An Arizona desert measures 50 square kilometers. A botanist recorded that there are 150 Saguaro cactus plants within the desert boundaries.

So the population density will be 150 divided by 50 which will  be 3 per square kilometers

Hence the population density is 3 per square kilometers

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3 years ago
Which minerals are most needed for proper bone development
Sladkaya [172]
Calcium is the #1 material needed for bone development
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anygoal [31]
False. Location of continents greatly affects their climate. This is directly related to its location (or distance) from the earth's equator. Parts of continents that are closer to the equator experience higher temperatures because they are physically closer to the sun. Parts of continents that are farther from the equator experience lower temperatures because they are farther from the sun. The earth's distance to the sun directly affects global climate giving us the impression of global warming and cooling. Since the earth does not spin in a perfect circle around the sun, but instead and ellipse, temperatures throughout the decades vary. Temperatures are also directly affected by the sunspot cycle, a phenomenon that occurs roughly every 11 years where the sun waxes on one side and wanes on the other (gets hotter and cooler). 
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3 years ago
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The phase of cell division in which chromatin condenses into chromosomes is ____ A. anaphase B. metaphase C. prophase D. telopha
Lady_Fox [76]

Answer:

C (Prophase)

Explanation:

All cells undergo division in order to produce more daughter cells. Cell division occurs immediately after the interphase, which is a resting and preparatory phase for mitosis or cell division. Prior to cell division, the DNA is found to be coiled around histone proteins to form a structure called CHROMATIN. The process of cell division occurs in four phases; Prophase, Metaphase, Anaphase, and Telophase.

In the Prophase stage, which is the first stage of mitosis, this Chromatin begins to condense or becomes compact by undergoing further coiling into a visible X-shaped structure called CHROMOSOME. This shape of the chromosome is as a result of the replication into sister chromatids that occurred in the S-phase of interphase.

5 0
3 years ago
Pls help question is in picture
lara31 [8.8K]

oh wait i think its b

Explanation:

isvsisbwsjjwbsid

4 0
3 years ago
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