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castortr0y [4]
3 years ago
12

A pathogen is always

Biology
2 answers:
Ivahew [28]3 years ago
5 0
Pathogens are disease causing agent
Stolb23 [73]3 years ago
4 0
The correct answer is C) <span>a disease-causing agent . 
</span>
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A maize plant with genotype Aa Bb produces the following gametes 100 Ab 45 AB 106 aB 50 ab This tells us that the two genes are
bogdanovich [222]

Answer:

True

Explanation:

The linkage relation of two genes can be determined on the basis of calculating recombination frequency.

If the recombination frequency value is greater than 50% then the genes are not linked and if the value is less than 50% then the genes are linked.

In the given question, the  crossover gametes formed will be Ab = 100

and aB= 106.

Therefore,

\dfrac{recombinant\ progenies}{ Total\ progeny}\times 100\\\\\dfrac{100 +106}{100+106+45+50}\times 100\\\\=\dfrac{206}{301}\times 100\\\\= 68.43\%

Since the recombinant frequency value is larger than 50% therefore the genes do not show linkage.

Thus, True is the correct answer.

7 0
3 years ago
Which of the following is not a part of Darwin’s theory of evolution?
Alenkinab [10]

A, because, the entire point of his theory was to prove that changes don't happen spotaneously!

6 0
3 years ago
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Body tissue that is connected to and moves the bones in the body tendon 2. the ability of a muscle to move a weight repeatedly,
Misha Larkins [42]
The body strong flexible tissue attaching the muscle to the bone - Tendon
When a muscle is able to move a weight rapidly, repeatedly, and for an extended period of time - Muscle Endurance 
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When the skeletal muscle are forcefully exercised and in result enlarge - Hypertrophy

4 0
3 years ago
Identify the two main regions of a typical mollusk's body
maria [59]
Head foot and visceral mass

Most of the mollusks species are gastropods. The body of the mollusk is made of shell and fleshy part. The fleshy part is divide into foot and visceral mass. Foot is a distinct feature of mollusk. They use it mainly for locomotion. The visceral mass involves the organs for circulation, digestion and other important processes in living organism. The visceral mass has two external flaps of tissue called as the mantle. It secretes calcerous shell and encloses a mantle cavity.
5 0
3 years ago
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1.) Compare the roles of oxygen and carbon dioxide in autotrophs and heterotrophs. Which organism is an oxygen consumer and carb
wariber [46]

Oxygen is used by both autotrophs and heterotrophs to release energy from glucose (as we know, the bonds between organic compounds can be used to release energy) in a process known as cellular respiration. Carbon dioxide, however, is predominantly used in autotrophs to perform photosynthesis because they cannot get their food any other way. The type of organism that is both an oxygen producer and carbon dioxide consumer is an autotroph. This is because they release oxygen during photosynthesis and require carbon dioxide to perform photosynthesis.

I hope I helped!

3 0
3 years ago
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