What is a classification key? dichotomous key?

1 answer:

7 0

A classification key is a way of categorizing living things by determining and arranging them according to their common qualities. Dichotomous key is a key for determining the identity of the organism based on two choices in each set of characteristics. The dichotomous key for sharks are the shape of the body, number of gill slits, position of mouth, and shape of caudal fins. Other characteristics include length or number of dorsal fins, presence or absence of pelvic fins, anal head, and shape of head.

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BRAINLIEST ASAP!!!! PLEASE HELP! :)

Alla [95]

Answer to #1:
<span>Kilograms

Explanation:
The base metric unit of mass is grams.
Pounds also measure weight, but they are part of the imperial system.

Answer to #2:
Mass

Explanation:
Mass is how much space an object takes up, it is the amount of matter in an object.
Volume, on the other hand, is how much space an object takes up.
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5 0

3 years ago

Read 2 more answers

The hormone vasopressin The hormone vasopressin stimulates the kidneys to retain sodium ions. stimulates the kidneys to retain w

amm1812

The hormone vasopressin stimulates the kidneys to retain water.

Vasopressin or antidiuretic hormone is secreted by the posterior pituitary gland and acts on the nephron tubules which increase the reabsorption of water, thus decreasing water content in urine while increasing that of blood.

The increase in water concentration in the blood elevates blood pressure as well as blood volume which makes the urine concentrated.

It regulates the tonicity of body fluids and therefore, in response to hypertonicity stimulates the kidneys to reabsorb solute-free water and return it to the circulation from the tubules of the nephron, thus restoring the tonicity of the body fluids toward normal.

To learn more about vasopressin here

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1 year ago

A model of cell division is shown here. A student evaluates the model and makes the claim that the cell division increases genet

loris [4]

Chromosomes exchange genetic material in step 3.

<h3><u>Explanation</u>:</h3>

The meiosis is the type of cell division that takes place for gametogenesis. The meiosis has two phases - meiosis I and meiosis II.

The meiosis I has the events like crossing over and independent assortment which leads to the mixing of genes between homologous chromosome pairs and separation of homologous chromosome pairs. So the two cells that are produced from the meiosis I are genetically different. The step 3 shows the crossing over of prophase 1 of meiosis I. So, it shows the genetic difference between the offsprings and leads to genetic variation.