Which of the following organelles houses DNA in eukaryotic cells?

2<br>147 What is si system ? write<br>down its two advantages.<br>its any

Fittoniya [83]

Answer:

SI system consist of standard units of measurement that are defined by International System Of Units.

Explanation:

SI stands for Standard International. It consist of total 7 units that are accepted internationally,

Two advantages of SI units are:

SI unit is rational system of units, that means one unit denotes one physical quantity.
SI units are internationally accepted which makes researchers and scientist calculations

7 0

3 years ago

Chromosomes are in pairs, what else comes in pairs

Leviafan [203]

Answer:

Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y. Each parent contributes one chromosome to each pair so that offspring get half of their chromosomes from their mother and half from their father.

Explanation:

(Sorry, I'm not sure)

4 0

3 years ago

Jenny predicts that when water in a cup evaporates, the mass of the water and cup together will get smaller.

Elden [556K]

A. Use a scale to measure the mass of a cup of water. Leave the cup out for one day and measure the mass again.

Explanation:

Jenny can predict is evaporation occurs by using a weighing scale to measure that mass of a cup of water, then he leaves the cup out for one day and he measures the mass again.

If the mass remains the same, then evaporation did not occur.
If evaporation occurs, then the mass will be lesser after the second measurement.
From this Jenny can infer the mass loss and made good deductions.
Evaporation is a phase change in which liquid turns to vapor.

Learn more:

Evaporation brainly.com/question/10972073

#learnwithBrainly

4 0

3 years ago

Categorize the given minerals into metallic and non-metallic minerals?

tangare [24]

Iron, Gold, Aluminum, Sapphires and Copper are the metallic minerals while Quartz, Calcite, Diamond, Rubies, Emerald, Topaz, Coal and Petroleum are the non-metallic minerals.

<h3>What are minerals?</h3>

Mineral is a chemical compound which is normally crystalline in nature. It is a solid substance present in nature made up of one or more and elements which are combined together.

It is formed as a result of geological processes . For example it includes quartz, calcite, sulphur, clay minerals etc. Minerals are used in the production of ceramics oftenly.

Properties of minerals :

1. They have characteristic chemical composition

2. They have highly ordered atomic structures

3. They have several physical properties such as hardness, luster and cleavage.

Thus, Iron, Gold, Aluminum, Sapphires and Copper are the metallic minerals while Quartz, Calcite, Diamond, Rubies, Emerald, Topaz, Coal and Petroleum are the non-metallic minerals.

Learn more about Minerals, here:

brainly.com/question/18078524

#SPJ1

7 0

1 year ago

How can homologous structures be used as evidence for shared common ancestry?

Crank

Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. They all have the same basic pattern of bones. They inherited this pattern from a common ancestor. However, their forelimbs now have different functions

4 0

3 years ago