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alexdok [17]
3 years ago
7

Which disease requires vaccinations and yearly boosters?

Biology
1 answer:
german3 years ago
4 0
Polyoma vaccine does the Polyomavirus. It’s recommend that parrots get this vaccine yearly.
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An operon is a group of genes under the control of a single promoter. match each type of operon with the descriptions below.
Leno4ka [110]
You didn't list any...

LAC = inducible repressor
TRP = repressive
4 0
3 years ago
Whats the connection between, Motion and Thermal energy?
Crazy boy [7]
As motion accelerates it produces heat, as heat of an object increases or decreases, affects its potential to be moved 
4 0
4 years ago
Members of which phylum establish a successful symbiotic relationship with the roots of trees?
Alchen [17]

Answer:

The correct answer is Glomeromycota

Explanation:

Arbuscular mycorrhizae are characterized by the formation of unique structures, arbuscles, coils and vesicles of fungi of the phylum Glomeromycota. They are a type of endomicorrhiza in which the fungus penetrates the cortical cells of the roots of a vascular plant.

In this symbiotic association, the fungus helps the plant to capture nutrients such as phosphorus, sulfur, nitrogen and soil micronutrients. It is believed that the development of symbiosis with arbuscular mycorrhizae played a crucial role in the initial colonization of the earth by plants and in the evolution of vascular plants.

This symbiosis is a highly evolved mutualistic relationship found between fungi and plants.

8 0
3 years ago
An island has many kinds of birds, no native species of snakes, and few large predators. Brown snakes eat bird eggs. What is the
olganol [36]

Boiga irregularis or brown snake is a slender, climbing snake with a vertical pupil and large eyes, providing it better nocturnal vision. The species has no natural predator. When the brown snake is accidentally released into the island, it will result in local extinction of the majority of the island's native lizard and bird species.

It will also result in cascading ecological influences by eradicating native pollinators, resulting in the corresponding reduction of the native plant species.

Hence, the correct answer will be fewer birds and more snakes.


3 0
3 years ago
Read 2 more answers
1. 1 Water makes up between 70-90% of the weight of most life forms, and nearly all chemicals present in living matter are solub
boyakko [2]

Answer:

The correct model is D.

Note: The first attachment below shows the different models. The second attachment shows the correct structural model of the water molecule.

Explanation:

A water molecule is composed of one atom of oxygen and two atoms of hydrogen.

A water molecule is polar, i.e. it contains positively and negatively opposite ends. The polar nature of the water molecule is due to strong electronegativity of oxygen which results in an uneven sharing of the bonding electrons between oxygen and hydrogen. The oxygen atom attracts the shared electrons more to itself, thereby, it acquires a partial negative charge, while the hydrogen atoms acquire a partial positive charge.

The bond angle between the oxygen and hydrogen atoms is approximately 105°. Therefore, from the first attachment below, the correct model for the water molecule is D.

4 0
3 years ago
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