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Dennis_Churaev [7]
3 years ago
12

Protists aren't monophyletic, meaning that they don't

Biology
2 answers:
11111nata11111 [884]3 years ago
4 0

Answer:

A. They don’t share ancestors with other organism in the same grouping. Protists belong in a paraphyletic group

Anastasy [175]3 years ago
4 0

Answer:

A. share one common ancestor that isn't also shared by organisms in other groups.

Explanation:

A monophyletic group includes all the descendants of an ancestral species. On the other hand, a paraphyletic group includes some descendants of a common ancestor. Protists are not monophyletic as they share a common ancestor with other groups. Hence, protists are said to be paraphyletic. Mammals are monophyletic as all the mammals share a common ancestor which is not shared by organisms of any other groups.

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Mercedes just stubbed her toe on the edge of her bedpost. In response, her brain will most likely signal the release of ____.
kogti [31]

The stubbing of the toe on the edge of the bedpost will result in the release of endorphins. Endorphins are the neurotransmitters that pass the nerve signals from one neuron to another. The endorphins are released in response to stimuli such as fear, pain and stress. These are released in the different parts of the nervous system, and the pituitary gland. The stabbing of the toe will act as a pain stimuli for the release of endorphins.

Hence, the answer is 'Endorphins'.

7 0
3 years ago
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A typical bag of fertilizer contains high levels of nitrogen, phosphorus, and potassium but trace amounts of magnesium and calci
Deffense [45]

Answer:

This question is incomplete as it lacks options. The options are:

A) Nitrogen will be incorporated into nucleic acids.

B) Phosphorus will be incorporated into amino acids.

C) Potassium will be incorporated into lipids.

D) Magnesium will be incorporated into carbohydrates.

The answer is A. Nitrogen will be incorporated into nucleic acids.

Explanation:

Fertilizers serve as external source of nutrients as they contain certain elements necessary for the build up of biomolecules in living organisms. According to this question, the bag of fertilizer contains the following elemental components: nitrogen, phosphorus, potassium, magnesium and calcium.

These elemental components of the fertilizer will be incorporated by organisms and used to build biomolecules in their systems. The four biomolecules are carbohydrate, proteins, lipids and nucleic acid. NUCLEIC ACID is a complex biomolecule made up of simpler NUCLEOTIDE subunits. Each nucleotide is made up of a pentose sugar, phosphate group and NITROGENOUS BASE.

NITROGENOUS BASE is a base which principally contains NITROGEN in the core of its structure. Hence, nitrogen element is a vital component necessary for the formation of nucleic acids. Therefore, Nitrogen component of the fertilizer will be incorporated into nucleic acids of organisms in the area.

6 0
3 years ago
Carbon's valence is _____..Look at the photosynthesis reaction 6H2O + 6CO2 -➔ C6H12O6 + 6O2. What do you think might be other fa
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The other factors that effect the rate of photosynthesis reactions are -

Light intensity

Temperature

Concentration of Oxygen

Concentration of Carbon Dioxide

Water

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A camel has eyelashes that work to keep the dust and sand out of its eyes.
Crazy boy [7]

Answer:

yes

Explanation:

3 0
3 years ago
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Identify what constitutes the defining characteristic of potable water.
Elena-2011 [213]

Answer:

Potable water can be defined as the water that can used for drinking purpose and it should not harm the body in longer terms.

The potable water is high quality water which lacks pathogen that causes contamination.

It has dissolved minerals, salts, ions, oxygen and some other gases like nitrogen, carbon dioxide in an appropriate amount.

3 0
4 years ago
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