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insens350 [35]
3 years ago
14

Complete the sentence:

Biology
1 answer:
fomenos3 years ago
6 0
Re: A car driver automatically brakes if a child dashes across the road.
<span>This is called a .............................................. reaction.
answer: reflex</span>
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Explain what it means when a molecule is referred to as being hydrophobic or hydrophilic. Give an example.
Fynjy0 [20]
Hydrophobic is when it cannot dissolve in water and hydrophilic is when it can. an example is a phospholipid in the cell membrane- the the tails are hydrophobic and the heads are hydrophilic.
5 0
4 years ago
In garden peas a pure line that is tall with purple flowers is crossed to another pure line that is short with white flowers. Th
defon

Answer:

See the explanation

Explanation:

Answer 1.

As given that in F1 all are short and white then it can be said according to Mendel's law that short and white are dominant over tall and purple.  

Let S for short s for tall and W for white and w for purple allele.

So the genotype of short purple will be Ssww or SSww. So In first case Ssww self crossed then resultant offsprings will be,

................ Sw .................... sw

Sw ........ SSww ............. Ssww

sw ........ Ssww .............. ssww (tall and purple)

So from this 1/4 will be tall and purple while 3/4 will be short and purple.

In second case SSww only short purple progeny will appear.

Answer 2.

2. a) The female progeny will not show any trait because there are two X chromosome in females , so female offspring can be carrier but not show any trait in case of X- linked trait.

2. b) Half of male offsprings show trait because X is inherited from mother. So the chance of having X-linked recessive allele is 1/2.

2. c) The chance of having X linked affect allele in daughter is 1/2. So the chance of inheriting that X to son will be 1/2 so in total there is chance of 1/4 that son will be affected.

2. d) the chance of first child show this trait will be 1/4 in case of male offspring while 0 in case of female offspring.

Hope this helps!

4 0
3 years ago
What are two techniques used to restore biodiversity
Zarrin [17]

Two techniques that are used in order to restore the biodiversity are the sawing of native seeds or planting individual plants, and the reintroduction of animal species native to the ecosystem.

The restoration of the biodiversity is practically trying to get an ecosystem in its initial, pre-destruction condition, and help it function without any human assistance after certain amount of time.

All restorations of the biodiversity are hard and take time, and there's no guarantee that the outcome will be as planned and wanted. Initially, there the sawing of native seeds and planting individual plants, which is crucial as the plants are the basis of the ecosystems. After that animal species are introduced, small and large, herbivores, omnivores, and carnivores. The people initially have to assist the functioning of the ecosystem, but the idea is to make it function properly over time on its own.

3 0
3 years ago
Read 2 more answers
3)Amphibians hatch out of their eggs with:
Lunna [17]

Answer: I'd say the answer would be (A)

Explanation:Depending on the Anphibian, they breathe through their lungs and skin at first and develope Gills later in life. Some are born with gills and lungs. But normally they start with lungs first.

5 0
3 years ago
Describe how the clown fish got it’s name?
Bogdan [553]
If im not wrong its because they looked like clowns
6 0
4 years ago
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