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3 years ago

Which feature is shown ONLY by higher invertebrates, as compared to lower invertebrates?

1 answer:

7 0

The correct answer is Three germ layers. The feature, three germ layers, is only shown by higher invertebrates, as compared to lower invertebrates. The formation of the three germ layers is caused by the morphogenetic movement called Gastrulation.

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_______ are chemical messengers that are produced in one body region but affect a different body region

serg [7]

Answer:

Hormones

Explanation:

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3 years ago

Ammonium salt is in the soil is converted first into nitrites by _____________

Pepsi [2]

Answer:

Nitrifying Bacteria

Explanation:

Nitrifying Bacteria present in the soil convert ammonium into nitrite.

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4 years ago

10 points and brainliest!!

Jet001 [13]

A proton has a positive charge and is in the nucleus.

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3 years ago

What are five similarities and five differences between bony fish and cartilaginous fish?

MA_775_DIABLO [31]

Differences

Bony Fish

They are both fresh water as well as marine.

Endoskeleton is made up of bone.

They have 4 pairs of gills.

Cloacal aperture is absent.

mouth is normally terminal

Cartilaginous Fish

They are marine.

Endoskeleton is made up of cartilage.

They have 5-7 pairs of gills.

Cloacal aperture is present.

mouth is at the ventural surface

similarties

Bony fish and cartilaginous fish represent two classes of aquatic chordates. Both bony fish and cartilaginous fish belong to the superclass Pisces. Both bony fish and cartilaginous fish have an endoskeleton.are their centralized nervous systems, their sizes are similar, they both belong to the phylum chordata, they are both a family of the fish, and both have a lateral line organ that enables the fish to detect movement and vibration in the water surrounding them.

Explanation:

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3 years ago

1. The diagram below shows a happy family of mice, with two parents and four offspring.

Oliga [24]

Answer:

The diagram is not attached but the question can be solved with the question alone, since the necessary information was provided.

• D. Offspring D (ff EE)

Explanation:

This is a cross involving two genes in mice. The two parents mice are crossed to produce four offsprings. The genotypes of the parents mice are FFEe (black fur) and ffEe (white fur).

These two parents will produce the following allelic combinations of gametes;

FFEe- FE, Fe, FE, Fe

ffEe- fE, fe, fE, Fe

Using these gametes in a pumnet square (see attached image), 16 possible offsprings will be produced with only three (3) distinct genotypes viz:

FfEE (4/16)

FfEe (8/16)

Ffee (4/16)

Hence, based on this question, all of the offsprings except offspring D (ffEE) is likely to be produced. This means that the offspring with genotype ffEE is the imposter as the parents mice with genotypes FFEe and ffEe could not have given birth to such offspring.

8 0

4 years ago