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Andrej [43]
2 years ago
7

Which of the following is the most important characteristic that biologists use to classify animals?

Biology
1 answer:
kramer2 years ago
6 0

Answer:

The animal's body structure

Explanation:

Because all classes or animals have different body types.

Birds, class Avis, have feathers and lay eggs.

Salamanders, class amphibia, have smooth or slimy bodies.

Snakes, class reptilia, have scales and forked tongues.

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List 3 elements that carbon atoms bond with to form some if the compounds that are found in durian fruit.
Allushta [10]

Answer:

1. methylbutanoate

2. ethylsulfanyl or ethanethiol

3. hydrogen sulfide

Explanation:

hope it helps

5 0
3 years ago
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Describe what happens to the amount of available oxygen as you get deeper in the ocean.​
yKpoI14uk [10]

Answer: The surface water is usually saturated with oxygen, absorbed from the atmosphere and from photosynthesis of algae. In the deep water the oxygen is consumed when breaking down the organic matter that sinks from the surface. ... In areas with poor water turnover the oxygen in the deep water can become completely used up.

Explanation:

7 0
3 years ago
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Individuals with premutation length repeats in FMR1 may have some of the phenotypes of Fragile X but not others, which is ______
IRISSAK [1]

Answer:

variable expressivity; incomplete penetrance

Explanation:

In genetics, variable expressivity refers to the fact that individuals having the same alleles/genes/genotype associated with a particular genetic condition may exhibit different clinical features of this condition. In general, variable expressivity is due to the combination of both genetic and environmental factors. An example of variable expressivity is the Marfan syndrome, where all individuals with this disorder have a dominant mutation in the FBN1 (fibrillin 1) gene and show different degrees of the same phenotype. Moreover, incomplete penetrance (also known as reduced penetrance) refers to the complete absence of a genetic trait or disease in individuals having alleles/genes/genotype associated with the condition. In consequence, individuals with incomplete penetrance do not develop features of the disease. An example of incomplete penetrance is given by those individuals with mutations in BRCA1/BRCA2 genes (associated with an increased risk of developing breast cancer) that do not develop cancer.

5 0
2 years ago
State the basic assumptions of the kinetic theory
lana66690 [7]

Answer:

Gases

Explanation: The simplest kinetic model is based on the assumptions that: (1) the gas is composed of a large number of identical molecules moving in random directions, separated by distances that are large compared with their size; (2) the molecules undergo perfectly elastic collisions (no energy loss) with each other and with the ...

3 0
2 years ago
certain cells have densely packed mitochondria and the cristae ( infolded projections of a mitochondrion) are very closely toget
sveta [45]

Answer:

What can be deduced of cell that have densely packed mitochondria and the cristae are very closely together is that its function requires large amounts of energy.

Explanation:

Mitochondria are cellular organelles in charge of energy production. In these organelles occurs oxidative phosphorylation and electron transport chain, whose final product is ATP, an energy molecule.

A <u>cell with a large number of mitochondria, whose crests are very close together and tight, belongs to a tissue that has a lot of activity and its energy requirement is high</u>.

An example of cells with densely packed mitochondria are skeletal muscle and heart muscle.

4 0
2 years ago
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