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kow [346]
3 years ago
9

The central nervous system includes

Biology
2 answers:
Black_prince [1.1K]3 years ago
6 0
It consists of the brain and the spinal cord
harina [27]3 years ago
3 0
The brain and spinal cord
hope this helps!!!

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A hornless bull is crossed with three cows, A, B, and C. Cow A is horned and produces calf A’, which is also horned. Cow B is ho
lukranit [14]
The dominant trait is hornless. 

If this is correct, then the original bull is a heterozygote:
H = hornless
h = horned
Bull is Hh

Cross 1: Hh x hh (horned female) - offspring is hh (horned)

Cross 2: Hh x Hh (hornless female) - offspring is hh (horned)

Cross 3: Hh x hh (horned female) - offspring is Hh (hornless)

Cross 3 is the key to confirming this because the only way to get a hornless offspring would be if hornless is recessive.


5 0
3 years ago
Write an essay on ectoparasites​<br> Example of ectoparasites
sesenic [268]

Answer:

Ectoparasites are organisms that live on the skin of a host, from which they derive their sustenance. The phylum Arthropoda includes the two-winged, or dipterous, flies. The larvae or maggots of these flies may invade the living or necrotic tissue of animals and humans, producing myiasis. Multiple dipterous flies are thought to be capable of producing ocular myiasis. It is thought that the larvae are embedded in the eye, that they burrow directly through the sclera and then under the retina. Typically, they leave asymptomatic tracks throughout the fundus, but a number of cases of destructive endophthalmitis have been reported, particularly from Scandinavia.

4 0
2 years ago
How does Dr.Douglas persuade Willie to have his blood drawn?
PilotLPTM [1.2K]
He tricks persuades him by giving home candy
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In an experiment, what is the factor that is tested? control specimen hypothesis variable
e-lub [12.9K]

The factor being tested is the variable. There are two types of variables, independent and dependent. The independent variable is the factor being changed by the scientist or the person controlling the experiment. The dependent variable is the thing that gets changed due to the changing of the independent variable. The dependent variable cannot be changed physically by the person doing the experiment.

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What is an ionic bond?
Leona [35]
I'd say your answer is,

C. the attraction and bonding of ions with equal opposite charges.
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