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ValentinkaMS [17]
3 years ago
10

What are the three characteristics of all vertebrates

Biology
1 answer:
Rudiy273 years ago
6 0
Notchochord, morphology, chordates
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in a certain fish, blue scales (BB) and red scales (bb) are codominant. when a fish has the hybrid genotype, it has patchwork of
Lena [83]

Answer:

BB is blue

bb is red

Bb is patchwork

Explanation:

It can't really be codominant since lowercase letters are recessive, and condomance needs 2 dominant alleles of a different types. So really it should be BB for blue, RR for red and BR for patchwork...

6 0
3 years ago
Gel electrophoresis separates dna fragments on the basis of what characteristic
Naily [24]
Gel electrophoresis separates fragments on the basis of weight and electric charge. Heavier and/or positively charged fragments don't go as far as lighter and/or negatively charged ones.
3 0
3 years ago
Why do some children look more like their mother or more like their father?
baherus [9]

Answer:

The parents' part  DNA Is passed on to their Children, the genes get activated

on both the Mom and dad's. Some of the chromosomes are basically Copied from the parents. and that is what Makes the children Look more like their parents.

Explanation:

I hope this helps!

have a nice Day!

8 0
3 years ago
What are the two main differences between capillaries in the periphery and capillaries surrounding the brain
Lorico [155]

Answer:

The options are not given but they are gotten from another websites.

A. Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells.

B. Capillaries surrounding the brain have pores and are surrounded by membranes of astrocyte cells.

C. Capillaries surrounding the brain have no pores and are not surrounded by membranes of astrocyte cells.

D. Capillaries surrounding the brain have pores and are not surrounded by membranes of astrocyte cells.

The correct answer is option A.

Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells.

Explanation:

Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells because

Capillaries are tiny blood vessels in the circulatory system that connect aterioles to venules. They are the most abundant or they are much blood vessels. They can penetrate the tissues of the body which allow passage of food nutrients, oxygen in the body thereby allowing exchange of nutrients and oxygen between the body tissues and the blood.

Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells while capillaries in the periphery Capillaries surrounding the brain have pores and are not surrounded by membranes of astrocyte cells.

8 0
3 years ago
There are several different kinds of aquatic ecosystems. Bogs get their water from precipitation, so they don't have many Fill i
Ratling [72]
  1. Bogs get their water from precipitation, so they don't have many <u>nutrients</u>.
  2. Marsh plants are adapted to waterlogged <u>soil</u>
  3. Swamps have <u>plants like trees and shrubs</u>.
  4. Rivers always have flowing currents and pick up <u>sediment</u> as they flow.
  5. Lakes are bodies of water on land.  
  6. Wetlands act as filters for nutrients and pollutants dissolved in the water.
  7. Estuaries are wetland regions where freshwater rivers mix with ocean water.

Explanation:

A wetland is a biome which has both water and land that are intermixed in various ways. According to the type of the wetland, the ecosystem differs.

Bogs: Wetland with water from precipitation and no inflow or outflow of surface or ground water.  

Soil: Acidic, infertile with less nutrient content

Vegetation: Acid-loving plants

Swamps: Forest wetlands near rivers and lakes.

Soil: well draining, mineral soil

Vegetation: Trees and bushes. Swamps are classified according to the vegetation, like coniferous swamp, hardwood swamp, shrub swamp etc

Marsh: Wetlands mostly inundated with water leading to waterlogged soil  

Soil: Organic and mineral soil

Vegetation: Hydrophytic plants adapted to waterlogged soil

Estuaries: Wetland regions enclosed by land one side where fresh water mixes with saline ocean water.  

Soil: Saline alkaline soil

Vegetation: Mangrove trees

Rivers and lakes are water bodies that form a part of wetlands.  

Rivers are flowing water bodies which flows through water current and picks up sediments as it flows.

Lakes are stationary water bodies that are enclosed by land mass on all its sides.

The wetlands act as a natural filter and receive all the sediments, pollutants etc which are dissolved in water and carried by the rivers and other water sources.

4 0
3 years ago
Read 2 more answers
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