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Leni [432]
3 years ago
12

Which of the following involves pathogens or an invading viruses or bacteria

Biology
2 answers:
madreJ [45]3 years ago
5 0
The answer is C ! Hoped this helped you out
arlik [135]3 years ago
3 0

Answer: Macrophage

Explanation: Macrophage is the first line of immune defense against invading pathogens like virus and bacteria.Macrophages kill their prey with acids.

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To have an impact on the evolution of a species what criteria does a behavior have to meet
Feliz [49]

A behavior must affect an organisms fitness and have a genetic basis.

4 0
3 years ago
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Which of the following is not necessarily true of metapopulations?
Oxana [17]

Answer:

Option C, Each subpopulation is linked to all other subpopulations by dispersal.

Explanation:

Each sub-population with in a metapopulation is not only connected by the dispersal distance travelled by an organism but also by the distance between the patches on which two sub population live. There are several other factors that limitise the concept of connection of subpopulation by dispersal factor and these vulnerable factors are – properties of terrain between the patches and its adverse affect on the dispersal behaviour of dispersing agent/species.

Hence, option C is correct.

7 0
3 years ago
Katie wants to make ball-and-stick models of the four macromolecules. She has colored balls for each of the elements in these mo
viktelen [127]

Answer:

I don't really understand what the question is, but I'm pretty sure you're asking for which molecules that will be needed; Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus

Explanation:

-Carbohydrate consists mainly of Carbon, Hydrogen, Oxygen, simple sugars have the basic formula of (CH2O)n. Some modification can be made to the sugar, but the main formula consists only with Carbon, Hydrogen, Oxygen.

-Proteins consists mainly of Carbon, Hydrogen, Oxygen, and Nitrogen for the amide groups. Some amino acid will need Sulfur for it's R Group.

-Fats consists mainly of Carbon, Hydrogen, and Oxygen just like Glucose.

-Nucleic Acids consists mainly of Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus for the backbone of the Nucleic Acid. Nitrogen will be needed for the Nitrogenous Base.

I hope this is the answer you're looking for!

6 0
3 years ago
1. How many minutes does it take a P wave to travel 2000 Km?
yuradex [85]

Answer:

6.7 minutes

Explanation:

In a solid such as rock, the primary wave can travel at 5 km/sec; it would take 400 seconds, or about 6.7 minutes to travel 2,000 km.

3 0
3 years ago
How can we stop the amount of emissions that contribute to greenhouse gases?
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2 years ago
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