What three organs secrete enzymes into the small intestines to assist in chemical digestion?

If fish populations in the Antarctic were to decline, what would be the best way for the smaller toothed whales to adapt?

miss Akunina [59]

Answer:

Beat more baleen whales

<span>Explanation: </span>

<span>Smaller toothed whales are secondary consumers of fish. If the fish population declined, the populations of leopard seals, elephant seals, and penguins; animals which make up a large portion of the whales' diet; would likely also decline.
To survive, the smaller toothed whales would have to eat more animals that feed primarily on krill instead of fish, such as seals (not leopard or elephant seals) and baleen whales.</span>

8 0

4 years ago

Cystic fibrosis is an autosomal recessive disorder. In one population, the frequency of affected individuals (A 2 A 2) is 0.0004

Simora [160]

Hardy Weinberg Equilibrium

Explanation:

Hardy Weinberg Equilibrium formula for allelic frequency is: $p+q=1$

Hardy Weinberg Equilibrium formula for genotypic frequency is: $p^2+q^2+2pq=1$

Here, $p$ =frequency of dominant allele

$q$ =frequency of recessive allele

$p^2$ =frequency of dominant genotype

$q^2$ =frequency of recessive genotype

$2pq$ =frequency of heterozygous genotype

frequency of affected individuals=0.0004(given)

here,affected individuals means the one's having Cystic Fibrosis and since it is recessive disease so we can write frequency of recessive genotype as: $q^2$ =0.0004

If $q^2$ =0.0004 $q$ will be 0.02;frequency of recessive allele will be 0.02

Using the formula $p+q=1$

$p+0.02=1\\p=1-0.02=0.98$

hence,frequency of dominant allele will be 0.98

Frequency of dominant genotype will be $p^2=(0.98)^2=0.9604$
Frequency of heterozygous genotype will be $2pq=2*0.98*0.02=0.0392$

7 0

4 years ago

What is one reason people used to think that nothing could live deep down in the ocean

Tomtit [17]

Answer:

One reason is that there was too much pressure in the bottom of the ocean, from all the water pressing together.

hope this helps :)

Explanation:

7 0

3 years ago

Write a hypothesis that explains why you think leaves change color in the fall.

timurjin [86]

The short answer is that leaves fall off trees when they aren't doing their job any more. A leaf's job is to turn sunlight into food for the tree. ((But to be honest with you you don’t really need to answer this question, it’s a hypothesis. You can get this wrong it’s a part of the experiment))

8 0

3 years ago

Read 2 more answers

girl of normal stature is born to two parents with achondroplasia who have very short stature, especially disproportionately sho

Lynna [10]

Answer:

Option D, Zero out of four (0%)

Explanation:

As we know, achondroplasia is an autosomal dominant pattern. Now a girl having normal stature mate with a partner who also has a normal stature.

Thus let us assume -

Allele for disproportionately short arms and legs be represented by "A"

while allele for normal stature be represented by "a"

Now genotype of parents would be

Female - aa

Male - aa

Thus,

aa x aa

aa, aa, aa, aa

Thus, option D is correct.

6 0

3 years ago