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MariettaO [177]
3 years ago
6

18. Acanthostega and Icythyostega have been called fish-like tetrapods. Explain why they are described

Biology
1 answer:
zloy xaker [14]3 years ago
8 0

<em>Both the Acanthostega and the Icythyostega were animals characterized by having four extremities and be equipped with gills and lungs at the same time, which determines that they are called tetrapods similar to fish.   </em>

<em> </em>

<em>Their characteristics made them suitable for living in aquatic and terrestrial environments, so they probably inhabited shallow waters or even the surface of the earth.</em>

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Why does more water evaporate off of oceans than off of land?
vova2212 [387]

Answer:

Evaporation is bigger above the oceans than above the earth, while precipitation is higher over the earth than over the ocean.

Explanation:

Most of the water that evaporates from the ocean goes back to it. However, a small percent of the water that evaporated from the ocean goes as precipitation to earth. This process of evaporation is very large so that without precipitations, evaporation and underground water, oceans would be nearly empty.

3 0
3 years ago
C) Fill in the Punnett square below based on the parents' genotypes. (6 points)
krek1111 [17]

As parent's genotypes are missing here, alleles cannot be estimated in offspring, but it is possible to use the example above to estimate it.

<h3>What is a Punnett square?</h3>

A Punnett square is a diagram used in genetics to estimate genotypic and phenotypic frequencies in offspring from a given genetic cross.

In order to estimate offspring allele frequencies, we need to know parental genotypes by means of a Punnett square.

For example, if both parents are heterozygous for a gene whose alleles are called 'A' and 'a', the Punnett square in offspring is:

        A         a

A     AA      Aa

a     Aa       aa

In this case, 50% of offspring will be heterozygous (genotype 1/2 Aa), whereas 25% will be homo-zygous dominant (1/4 AA) and 25% will be homo-zygous recessive (1/4 aa).

In conclusion, as parent's genotypes are missing here, thereby alleles cannot be estimated in offspring, but you can use the example above to estimate it.

Learn more about the Punnett square here:

brainly.com/question/3522181

#SPJ1

7 0
2 years ago
The absorption of alcohol can be slowed down by eating, but only __________ can reduce the BAL level. Sleep Water Coffee Time
xenn [34]
<span>The answer is Coffee. Fatty foods will back off liquor retention fundamentally, as they adequately shape a covering that it can't without much of a stretch go through.However, sustenance in the stomach will likewise significantly accelerate the rate of gastric purging. This implies the liquor comes all the more rapidly into contact with the dividers of the upper segment of the small digestive system [the duodenum], through which it is retained significantly more effectively into the blood than it would be however the dividers of the stomach.</span>
6 0
3 years ago
Read 2 more answers
Liposomes consist of ________ bilayers that enclose an aqueous compartment where drugs can be contained for delivery to specific
Anna35 [415]

Answer:

Phospholipid bilayer

Explanation:

Liposomes are vesicles are spherical in shape. They consist of at least one phospholipd bilayer most especially phosphatidycholine. Liposomes are artficial vesicles similar to a membrane, because it has an hydrophilic core surrounded by a hydrophobic lipid bilayer.

Liposomes are artificial prepared and are used for the transportation of substances like drugs and nutrients between cell parts, outside of the cell and into the cell.  

In liposomal drug delivery, the liposome fuses with other internal cell membranes at the site of action and releases its liposomal content.

8 0
4 years ago
Is unicellular eukaryotic or prokaryotic
Nataliya [291]

Answer:

It's Eukaryotic

Explanation:

8 0
3 years ago
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