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djyliett [7]
2 years ago
8

Humans convert ammonia to the water soluble compound urea. True O False​

Biology
1 answer:
Lubov Fominskaja [6]2 years ago
6 0
The answer to this is true
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Choose the FALSE statement.
tekilochka [14]

Answer:

The false statement is C. The hamstrings are prime movers of hip (thigh) flexion and knee (leg) flexion.

Explanation:

The hamstrings are also called ischiosural or simply, femoral. They are the powerful and voluminous musculature that is located in the back of the thigh and that performs its action mainly on the knee, flexing it and also rotating it.

The hamstrings are made up of three muscles: the biceps femoris, semitendinosus and semimembranous. In addition, the tendons are located at the back of the thigh and cross the hip and knee joints. As the hamstrings cross two joints, they have two actions, including knee flexion and hip extension, as well as hyperextension.

6 0
3 years ago
In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The gene
NikAS [45]

Answer:

A) 9:3:3:1

B) All bitter fruit, yellow spotted offsprings

C) Phenotypes are bitter yellow spotted (4), bitter no spot (4), sweet yellow spot (4), and sweet no spot (4). 1:1:1:1

Explanation:

This is a typical dihybrid cross involving two genes, one coding for fruit taste and the other for spot color. The allele for bitter taste (B) and yellow spot (S) is dominant over the allele for sweet taste (b) and no spot (s) respectively.

Hence, a heterozygous F1 resulting from a cross between an homozygous dominant (bitter fruit, yellow spot) and homozygous recessive (sweet fruit, no spot) will have a BbSs genotype. The heterozygous F1 offsprings are self-crossed and produce gametes BS, Bs, bS, bs. (See punnet square). The F2 offsprings will have the following phenotypes: Bitter fruit, yellow spot (9)

Bitter fruit, no spot (3)

Sweet fruit, yellow spot (3)

Sweet fruit, no spot (1)

Back cross between a F1 offspring (BbSs) and homozygous dominant parent (BBSS) will produce all bitter fruit, yellow spot offsprings (see attached image). BBSS (4), BBSs (4), BbSS (4), and BbSs (4) are the offsprings' genotypes.

For the back cross between a F1 offspring (BbSs) and a homozygous recessive (bbss) parent, the Phenotypes with their proportions are as follows:

Bitter fruit, yellow spot (BbSs, 4)

Bitter fruit, no spot (Bbss, 4)

Sweet fruit, yellow spot (bbSs, 4)

Sweet fruit, no spot (bbss, 4).

4 0
3 years ago
Why does wind erode the sand in deserts more than the dirt in forests?
motikmotik

Answer:

I think the answer is D

Explanation:

the tree roots helps to hold the dirt down plus the higher amounts od mositure make the dirt denser

4 0
3 years ago
Read 2 more answers
How did adaptive radiation affect plants after they first moved to land?
____ [38]

Answer:

The correct option is D.

Explanation:

Adaptive radiation refers to the ability of living organisms to evolve rapidly from an ancestral forms into variety of other forms especially when the organisms move into a new environment that has abundant resources. The resources, which are present abundantly in the environment allow the living organisms to spread out in the environment and to find different habitats in the environments that favour their survival.

In the question given above, adaptive radiation allows plants to fill different habitats (niches) that are found on land and to spread out rapidly.  

8 0
3 years ago
Read 2 more answers
Explain one significant virus
bonufazy [111]
E-coli is a significant virus
5 0
3 years ago
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