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3 years ago

Which phrase describes the most likely way a person could get an infectious

Biology

2 answers:

Marianna [84]3 years ago

8 0

Answer:

Explanation:

Darina [25.2K]3 years ago

7 0

Answer:

D. Sharing a cup or glass with a person who has a cold

Explanation:

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What problems would you expect to observe in an ecosystem without producers? Be sure to answer this question in paragraph form u

Cloud [144]

The producers are the main source of the food production in the ecosystem. The producers are the organism, which convert the energy from the sunlight into the chemical energy. The consumers use this chemical energy for carrying out the metabolic processes in their body.

Without producers, the consumers cannot obtain their energy. Hence, the ecosystem without any producer would not survive.

8 0

3 years ago

What is a main cause of testicular cancer?

Inessa [10]

Testicular cancer or cancer of the testisoccurs when cancer cells form in one or both testicles. These cells begin to change and grow uncontrollably, forming a mass or tumor. The cells can also invade the blood stream and lymph system and spread, leading to tumors in other areas of the body called metastases.

3 0

4 years ago

Read 2 more answers

n cattle, an autosomal mutation called Dexter produces calves with short stature and short limbs. Embryos that are homozygous fo

timofeeve [1]

Answer:

1 DDRR - Red, non-dexter

2 DDRr - Roan, non-dexter

2 DdRR - Red, dexter

4 DdRr - Roan, dexter

1 DDrr - white, non-dexter

2 Ddrr - white, dexter

Explanation:

Dexter is deleterious in homozygous condition, hence, phenotypes are heterozygous.

Roan are also heterozygous.

If dexter allele is represented by D, non dexter individuals will be DD dexter individuals will have the genotype Dd.

If colour in cattle is represented by R, red individuals will be RR, white will be rr, then roan colour will be Rr.

Hence, roan dexter cow and roan dexter bull will both have DdRr genotypes.

Crossing the two: DdRr x DdRr

Progeny:

1 DDRR - Red, non-dexter

2 DDRr - Roan, non-dexter

2 DdRR - Red, dexter

4 DdRr - Roan, dexter

1 DDrr - white, non-dexter

2 Ddrr - white, dexter

Others that are either aborted or stillbirths include:

1 ddRR

2 ddRr

1 ddrr

5 0

3 years ago

2. How do the effects of insulin resistance compound to decrease cellular responses to insulin?

victus00 [196]

Answer and explanation;

-The insulin receptor itself has decreased kinase activity leading to fewer binding sites for singling effectors to become activated.

Therefore; the signaling effectors are less likely to be activated.

-Additionally,, feedback inhibition decreases signaling effector binding to receptor.

-The lack of activation of these initial signaling effectors prevents any subsequent steps from happening.

-We can thus conclude this by saying that higher insulin concentrations are necessary to obtain the same level of signaling leading to physiological effects that would exist in someone without type-2 diabetes.

-Also the requirement for higher insulin concentration means that the cells that respond to insulin are resistant to its effect.

4 0

3 years ago

Read 2 more answers

What objects in the solar system are larger than earth

Marta_Voda [28]

Answer:

the sun, jupiter, saturn, uranus, neptune

Explanation:

6 0

3 years ago