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enot [183]
3 years ago
9

All substances have characteristic properties. If one of these properties can be observed without changing the identity of the s

ubstance, it must be a?
Biology
1 answer:
Dmitry [639]3 years ago
7 0
If it can be observed without changing the identity then it is a physical property.
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Black jack (Bidens pilosa) belongs to the family Compositae. What is it’s: Genus.
AlladinOne [14]

Answer:

<h2>Genus : Bidens</h2>

Explanation:

Bidens pilosa ( Black jack) is a species of herbaceous flowering plant .

Science has provided us with the following information :

Kingdom: Plantae

Clade: Tracheophytes

Clade: Angiosperms

Clade: Eudicots

Clade: Asterids

Order: Asterales

Family: Asteraceae

Genus: Bidens

Species: B. pilosa

6 0
3 years ago
Thomas Malthus was an economist who influenced Darwin's developing theory of evolution. Malthus observed that the birthrate amon
sukhopar [10]

Answer:

The work of Thomas Malthus help and influence Darwin Thomas to refine his theory of natural selection by explaining that there is a meaningful competition between the individuals of a particular species or population for a specific resource such as food or shelter.

Thomas Malthus predicted that the human population is reproducing faster than its death race and will lead to growing faster than space and food supplies needed to sustain it. Darwin concluded further that If all offspring of almost any species survived for several generations, they would overrun the world and therefore a healthy and meaningful competition is present and to overcome this natural selection takes place as the individual adapt will ultimately survive.

4 0
3 years ago
Arthropod exoskeletons and mollusc shells both ________.a.are secreted by the mantleb.help retain moisture in terrestrial habita
nasty-shy [4]

Answer:

b. help retain moisture in terrestrial habitats

Explanation:

Arthropods such as cockroach, centipedes, spiders, crab are the members of the largest phylum Arthropoda. These are animals with paired jointed legs and their body is covered with an exoskeleton made of chitin. They live in diversified habitat and exoskeleton helps to retain moisture in theterrestrial habitats.

Similarly mollusks such as sepia, snail are soft bodied animal whose body is covered with calcareous shell as a protection and to retain moisture while living on land.

8 0
3 years ago
Someone plz help me :(
dolphi86 [110]

Answer:

C

Explanation:

Chemical energy stored in muscles transform to kinetic and heat energy

6 0
2 years ago
Read 2 more answers
Which of the following statements is true about mitochondria?
valkas [14]

Answer:

A

Explanation:

Mitochondria are the sites of the reactions of oxidative phosphorylation, which result in the formation of ATP. The size and coding capacity of the mitochondrial DNA varies considerably in different organisms, and encodes rRNAs, tRNAs and essential mitochondrial proteins.

4 0
3 years ago
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