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kolezko [41]
3 years ago
8

How do wales differ from fish

Biology
2 answers:
castortr0y [4]3 years ago
8 0

Answer:

Whales are mammals that need air from the sea's surface to survive. Whales are capable of giving birth to live young. Fish have gills and use them to draw oxygen from the water. The majority of fish lay eggs. Whales and other marine animals with horizontal tail fins, such as dolphins, have vertical tail fins, while fish have vertical tail fins.

hope this helped!

omeli [17]3 years ago
6 0
Whales are mammals
They need air to survive and they give out babies nine eggs
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Local farmers think that a commonly used pesticide is responsible for the increase in appearance of frogs with an additional app
stira [4]

Answer:

D.-

Explanation:

A control group is needed to carry out the experiment, that control group is the one that is not injected with anything.  Ethanol and pesticide need to be injected into separated groups to document whether it is one or the other that is harmful

4 0
3 years ago
When Charles Darwin considered wings of birds, he famously propose 1 ): Google. hhmi biointeractive great transition heime 17:28
serg [7]

When Charles Darwin considered wings of birds, apart from his famous proposal he also predicted that fossils will be found with structures that are intermediate between early and modern form.

Answer: Option C

<u>Explanation:</u>

Charles Darwin was basically referring to transitional Fossil while considering Wings of bird. So what are transitional fossil? They are the fossil remains of both the ancestral group and the descendant group.  

Since we don’t have enough record of the fossils, it is very difficult to know the accuracy of transitional fossil.  However, we do have some record of fossils from which we can gather enough evidence of how the fossils where earlier and how it evolved over a period of time.  

7 0
3 years ago
A lack of diversity in a population could possibly cause
Fynjy0 [20]
C extinction because they need diversity to reproduce 
3 0
3 years ago
please help me I’m struggling with biology so much and it would mean A LOT if something could just help me with this one questio
bogdanovich [222]

Answer:

D

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5 0
3 years ago
In an isolated lagoon in the caribbean, a population queen conch is in hardy-weinberg equilibrium. Of the 350 individuals in the
jolli1 [7]

Given:

Genotypes pp and pc, give pink coloration in 70 out of 350 conches.

Genotype cc, gives cream coloration in 280 out of 350 conches.

To find: the number of offspring in a population of 300 snails with pink coloration.

Method: Using punnett square and hardy wineberg equation to solve the problem.

Solution:

The Punnett square for the given data is shown in the image. Based on the given data, one can infer that the presence of 'p' allele hinders the expression of 'c' allele inspite of 'c' being the dominant allele. Thus we'll use the homogenous dominant 'cc' conches to find the frequency of the 'c' allele.

No. of conches with 'cc' genotype = 280

Frequency of 'cc' allele = \frac{280}{350} = 0.8

∴ c² = 0.8

c = √0.8 = 0.89

Since 'c' and 'p' alleles are in equilibrium,

p + c = 1

p = 1 - c = 1 - 0.89 = 0.11

∴ c = 0.89 and p = 0.11

Now, the number of heterogenous carriers will be,

2pc = 2\times 0.89\times 0.11 = 0.2

Hence, no.of heterogenous carriers (pc),given by 2pc = 0.2

Now, the number of pink colored snails will be, p² + 2pc = 0.0121 + 0.2 = 0.21

Hence, any population size will have 21% of the snails in pink coloration.

The, 21% of a 300 sized population will be, \frac{300\times 21}{100} = 63.

Hence, 63 snail offspring will be pink colored.

 

3 0
3 years ago
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