Amale rabbit with the genotype bbee is crosses with a female rabbit with the genotype bbee the square is set up below. fill it out and determine the phenotypes and proportions in the offspring.

Half i.e 8 progenies will have black hair and long ears.

Half i.e 8 progenies will have black hair and floppy ears.

No progeny will have any brown hair and long ears.

No progeny will have brown hair and floppy ears.

Explanation:

The genes mentioned here B and E are the genes for fur colour and ear length respectively.

The dominant character B represents black hair color whereas the recessive allele b represents brown hair colour.

The dominant character E represents long ears whereas the recessive allele e represents floppy ears. Both the genes are completely dominant over their recessive alleles.

Here in the question, the genotype of the two parents are BBee and bbEe respectively.

So gametes from 1st parents are Be only.

Gametes from 2nd parent are bE and be.

So crossing them, the genotypic ratio comes as

BbEe : Bbee = 1:1.

So half of the progenies will have black hair and long ears and half will have black fur and floppy ears.

1. glaciers are melting

2. more water going into ocean (water's such as fresh waters, etc)

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.