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solniwko [45]
2 years ago
5

Write any two uses of pseudopodia in amoeba​

Biology
1 answer:
bogdanovich [222]2 years ago
7 0

Answer:

The cells that contain these projections are what are generally referred to as amoebae, which are filaments near the end of the cell that interact with the mucin that leads to the contraction. The pseudofoot extends itself up to the actin and then returns itself to the reticulum. In this way, the amoeba moves, as well as some cells in animals, such as white blood cells.

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True or False: The following example populations meet the basic requirements of Hardy-Weinberg equilibrium. a. A small, isolated
Setler79 [48]

Answer:

Only option D is TRUE. The rest are FALSE.

Explanation:

In Hardy-Weinberg equilibrium, there is virtually no change in the frequency of alleles and genotype, in a population, meaning there is a genetic equilibrium in that population which shows no real evolutionary change has occurred. According to the , several conditions must be met before such equilibrium can be said to occur in a population, these requirements or conditions are:

1. There must be an unrestricted random mating

2. Mutation that results in the change of gene is absent

3. The population size must be large enough

4. Absence of migration,i.e. no movement of members out of a population or into a population

5. No natural selection

Now let’s take a  at the example of populations given, stating whether they meet the above listed conditions or not

For option A, which is “A small, isolated population of seals living in a stable environment with no genetic mutations” this is False, a small population size of seals is more likely to have its allele frequencies changed by random fluctuations compared to a large population size of seals. This does not satisfy condition number 3 listed above.

Option B, “A large population of fish where females mate with males based on size” is False. It does not satisfy condition number 1 listed above. In this population example, there is restricted random mating.

Option C “A population of birds with no genetic mutations that often mate with members of neighboring bird populations” is False. It does not meet condition 4, because there is exchange of genes with other populations that might have different allele frequencies.

Option D “A large, isolated population of squirrels that lives in a stable environment, has no genetic mutations, and mates randomly” is True. This meets all conditions listed above.

Option E “A large population of spiders that experiences immigration from a second nearby population” is False. This does not meet condition 4.

4 0
2 years ago
What enzyme or function is being affected in mutant (a), causing many mismatched base pairs?
igor_vitrenko [27]
DNA polymerase is the enzyme that is responsible for adding correct nucleotide pairs to new and growing DNA strands. Mismatched base pair errors will occur if this enzymes is not able to function optimally. There are other system that work DNA polymerase, these are proof reading system and mismatch repair system. Less than optimum function of these system will lead to uncorrected mismatched base pairs. 
6 0
3 years ago
A scientist is designing an investigation to study the impact of the neck length of tortoises on survival rates in the Galapagos
Vinil7 [7]

Neck length is what is going to change so that is the Independent Variable. The Dependent Variable is the Survival Rate.

Hope this helps

3 0
3 years ago
Read 2 more answers
The right and left hepatic ducts emerge from the right lobe of the liver in the porta hepatis and unite to form the:
dexar [7]

Answer:

common hepatic duct

Explanation:

  • The common hepatic duct is formed by the union of the right and left hepatic ducts emerging out from the right lobe of the liver.
  • The right hepatic duct is responsible for draining bile from the right half of the body whereas the left hepatic duct drains it from the left side of the body. 
  • At the junction of the right and left hepatic duct, the common hepatic duct gets formed which then joins the cystic duct and then the common bile duct is formed. 
8 0
3 years ago
What cell parts are common to all of these cells?<br><br> Use complete sentences.
Natalka [10]

Answer:

<em>between </em><em>an </em><em>animal</em><em> </em><em>cell </em><em>and </em><em>a </em><em>plant </em><em>cell </em><em>there </em><em>are </em><em>some </em><em>parts </em><em>that</em><em> </em><em>are </em><em>similar</em><em> </em><em>and </em><em>carry </em><em>out </em><em>the </em><em>same </em><em>function </em><em>like:</em>

<em>both </em><em>have </em><em>a </em><em>cell </em><em>membrane</em><em> </em><em>which </em><em>selects </em><em>what </em><em>goes </em><em>in </em><em>the </em><em>cell.</em>

<em>both </em><em>have </em><em>cytoplasm</em><em> </em><em>which </em><em>holds </em><em>the </em><em>protoplasm(</em><em>the </em><em>living</em><em> </em><em>part </em><em>of </em><em>the </em><em>cell)</em>

<em>both </em><em>have </em><em>a </em><em>nucleus</em><em> </em><em>which </em><em>carries </em><em>out </em><em>all </em><em>cell </em><em>activities</em><em> </em><em>and </em><em>holds </em><em>threads </em><em>of </em><em>DNA </em><em>called </em><em>chromosomes</em>

<em>both </em><em>have </em><em>a </em><em>mitochondria</em><em> </em><em>which </em><em>is </em><em>the </em><em>power </em><em>house</em><em> </em><em>of </em><em>the </em><em>cell</em>

<em>both </em><em>have </em><em>golgi </em><em>bodies </em><em>which </em><em>modify</em><em> </em><em>and </em><em>carry </em><em>proteins</em><em> </em><em>from </em><em>sites </em><em>of </em><em>synthesis</em><em> </em><em>to </em><em>sites </em><em>of </em><em>reaction</em>

<em>I </em><em>hope</em><em> this</em><em> helps</em>

4 0
2 years ago
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