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Brut [27]
2 years ago
10

Where would you expect to find the simplest body plans?

Biology
2 answers:
Y_Kistochka [10]2 years ago
7 0
Most sponge body plans are slight variations on a simple tube-within-a-tube design. which of the following is a key limitation of sponge body plans? sponges lack the specialized cell types needed to produce more complex body plans. the reliance on osmosis/diffusion requires a design that maximizes the surface area to volume ratio of the sponge. choanocytes must be protected from the hostile exterior environment. spongin cannot support heavy bodies.
Mars2501 [29]2 years ago
3 0

Answer:

4

&

the preserved remains of a living organisms

a dinosaur footprint found in a rock layer

a mosquito from 65 million years ago trapped in sap

Explanation:

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A student placed a semipermeable membrane inside a U-shaped channel with two chambers, as shown. The
yanalaym [24]

Answer:

Placing salty water in  A and distilled water in  B.

Explanation:

The fastest net rate of water movement into the A-side will occur if we place salty water on that side and distilled water in the other one. The reason for this is that the A-side contains a higher concentration of solute than B. So, the water will pass the semipermeable membrane and go to the A-side to valance the concentrations on both sides. As we can see, there is an increase in the net rate of water movement into A.

5 0
2 years ago
Which factor is least likely to affect the results and interpretation of a functional MRI?
sergij07 [2.7K]
Prescription medication is the least likely to affect the results and interpretation of a functional MRI.

Here are some of the factors that is most likely to affect the results of MRI :

- Caffeinated soda. Caffeinated soda tend to constrict the blood vessels in the brain, which will affect MRI results.
- cancerous growth, will create a huge shadow on MRI results
- sprained ankle, especially if it was fixed with metal bandage, will cause harm during MRI

5 0
2 years ago
Scientists are researching a large family, many of whose members have Jackson-Weiss Syndrome, a disease that causes bone problem
Goryan [66]

The right answer is C.

A genetic disease is called autosomal dominant transmission when :

* The morbid allele ("sick" version, mutated of the gene in question) is on a non-sexual chromosome (neither X nor Y).

* The presence of a single morbid allele is sufficient for the disease to express itself.

The morbid allele is transmitted by either the father or the mother (or both, if they have the same inherited autosomal dominant genetic disease). Anyone with one of their affected parents is affected.

Jackson-Weiss syndrome is indeed an autosomal dominant disease characterized by a malformation of the feet, craniosynostosis of varying degrees, facial abnormalities, enlargement of the big toes and normal hands.

6 0
2 years ago
If a person is heterozygous for the Δ32 allele of the CCR5 gene, how many of the four daughter cells produced by meiosis will ha
never [62]

Answer:

The correct option is B: 2

Explanation:

Before meiosis takes place, the entire genetic material within the cell is replicated, this results in 2 copies of the 2n DNA. Since the person is heterozygous for the mutated allele, there is one copy of it present within one 2n set of chromosomes. Two of the 2n chromosomal sets means there would be two copies of it present in total and when the segregation event happens to create haploid cells, two of the cells will inherit the mutated copy.

Hope that answers the question, have a great day!

6 0
2 years ago
Imagine that after the birds have been living in the city for many years a second big flock of birds arrives. How will the bird
saul85 [17]

Answer:

Please see below for answer

Explanation:

As the new flock of birds arrives in the city, there will be a sudden surge in the population of these birds. Since there are no predators of the birds around in this city, the population will remain at a higher number as time passes by during the next decade or so.

8 0
2 years ago
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