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scZoUnD [109]
3 years ago
13

True or false? The absence of a trait cannot be used as a synapomorphy in phylogenetic analysis, only shared derived traits that

are present in the clade can be used.

Biology
1 answer:
Cerrena [4.2K]3 years ago
3 0

Answer:

This statement is False.

Explanation:

A shared apo-morphy which differentiate a clade from other organisms is called synapomorphy. In simple words, members of monophyletic group shares an apomorphy which indicate the presence or absence of certain organs from clade.

For example, loss of legs in snakes is an important  synapomorphy.

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Which example of artificial selection is caused indirectly by human activity?
kompoz [17]

The artificial selection is a procedure of selectively breeding certain species of plants and animals in order to develop certain desirable traits. Artificial selection helps the humans to get the plants or livestock that are the most useful for them. Among the given options, the choosing of the sheep giving the most wool, mating of the goats producing more milk, and mating of the ducks to produce large eggs are all examples of the deliberate artificial selection.

But the using of the fishing nets that are catching only the large crabs is an example of indirect artificial selection as it leads to the increased population of small crabs.

Hence, the correct answer is 'option d'.

8 0
3 years ago
Read 2 more answers
The process in which a solid changes to a liquid is called
Neko [114]

Answer:

melting

Explanation:

the solid melts into a liqiud

3 0
3 years ago
Read 2 more answers
What technique is used by all three branches of science to make discoveries
Brut [27]
Experimenting. Experimenting is used in all three main branches of science, physics, chemistry, and biology, and is used in all the sub-branches of science, like marine biology, to make discoveries. Without experimenting, all we know about science would be random guesses.
6 0
3 years ago
Most of a cell's molecules can be classified as belonging to one of four major classes: lipids, carbohydrates, nucleotides, or a
goblinko [34]

Answer:

Diagram, in attachments

Explanation:

From the left side of the screen to the right,that is from a structure with a sugar structure with two other molecules  attached to it.

The first molecular structure is Nucleotides. Reasons it contains the middle ribose sugar(5-carbon)connected to the phosphate group and  Nitrogenous bases.This is the structure of nucleotides  and when this is joined by phosphodiester bond between one a nucleotide, to the phosphate group of another  nucleotide molecule  it forms a nucleic acid molecule.

The second structure from left to right with  long carbon chains, it is  a lipid.That js an Ester formed from the reaction of fatty acids with alcohol glycerol.

However, the presence of Phophate group in structure makes it different from a normal tryglycerides.The phosphate group has replaced  one of the  the three fatty acid molecules.Therefore it is called Phospholipid.With one hydropholic ends(phosphate ends) and the hyrophobic end the  carbon chain,with one unsaturated. The lipids molecules are held together my ester bonds.

The next structure is the protein structure(dipeptide).Genrally amino acid is made up of the central Alpha carbon connected on the right by the Carbonyl group(coo-) on the left by the Amine(NH2) group.The R-group which determines the type of amino acids  and hyrdogen atom.In the above structure condensation reaction  has occurred between the hydrogen atom  of  the amine group and carbonyl group of the other amino unit to form a dipeptide.The  bond formed from the condensation is the peptide bond.

The last structure on the far right are the carbohydrate -ring structure and the straight chains.The functional groups of the CHO  -Carbonyl group and hydroxyl group are glues to this.

3 0
3 years ago
Observe: Click Next. What happens in the cytoplasm?
WARRIOR [948]

Answer:

The cytoplasm is a jelly like substance that supports and suspends organelles and molecules inside the cell. It also helps move and dissolve materials throughout the cell including waste molecules, proteins, and hormones.

I hope this helps! I tried to keep it short and simple. :)

7 0
3 years ago
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