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daser333 [38]
3 years ago
8

Please help !! 22 points !

Biology
1 answer:
Lena [83]3 years ago
7 0

Answer:

The embryo develops the heart, nervous system and face.

Explanation:

The nervous system is one of the first things to develop, following is the heart and then their face. Physical traits which also develop are the  arms, legs and sexual organs.

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Sandy has a huge crush on Casey. When he is nearby, Sandy doesn't pay attention to anything or anyone else. Psychologist Donald
Doss [256]

Answer:

The most important information in this model he developed is the "filter theory."

Explanation:

Filter theory is a description of desirability planned by Kerchoff and Davies (1962). This concept proposes that individuals advance associations by smearing a sequence of filters, such as resemblance of communal demographic issues and arrogance and complementary of wants to slender down the pool of obtainable candidates. Filter theory is a sociological theory concerning dating and mate selection. It proposes that social structure limits the number of eligible candidates for a mate. Most often, this takes place due to homogamy, as people seek to date and marry only those similar to them.

4 0
3 years ago
In an ecosystem where the owls eat mice the carrying capacity of both populations has been reached . how would the migration of
zhuklara [117]

Answer:

<em>It would cause a decrease in the carrying capacity of the owl population.</em>

Explanation:

The relationship between a predator and prey is unique. Both the population of a predator and prey gets affected if changes in one of them occur.

If mice migrated from the ecosystem, this will mean that there will b little food available for the owls on that ecosystem. As a result, they will compete for food. Some of them would get killed due to lack of food. Others will migrate to places where they can find food. Hence, the carrying capacity of the owl population would decrease.

4 0
3 years ago
Mrna,amino acids,type of mutation
Leya [2.2K]

Answer:

mRNA: 3' AUG-AAU-GCU-GCC-GGU-GA-5'

amino acids : methionine, asparagine, alanine, arginine, proline

type of mutation: deletion, missense

Explanation:

The mRNA sequence is complementary to the DNA sequence. A always pairs with T, C always pairs with G. Except this is an RNA sequence not a DNA sequence, so T is replaced with U.

The mRNA sequence is translated into an amino acid sequence based on the triplet code. The triplet code for this sequence is shown in the attached picture. Each triplet signifies a specific amino acid. The codon can be identified from the table and placed in sequence. We can see that the new DNA strand has caused a new amino acid sequence. It has also left us with an incomplete sequence, as GA cannot signify an amino acid.

The type of mutation is a single base deletion. We can see that the base C is missing from the 9th amino acid in the original strand. As you can see, this has an ongoing affect on all the bases in the rest of the sequence, as it changes the way the sequence is organised into codons. This results in a missense mutation.

3 0
3 years ago
WHAT IS THE MOVEMENT OF SMALL ROCK PIECES TO A DIFFRENT LOCATION CALLED?!
djverab [1.8K]
I think its called glacier. Hope I helped
4 0
3 years ago
Is the cell membrane the only source that supports and structure in plant and animals cells?
Romashka [77]

let me do my research real fast and I will let you know what I find

4 0
3 years ago
Read 2 more answers
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